Continuous Gamma Level System Installation Guide P/N

4790 Continuous Gamma Level System Installation Guide P/N 717830 Revision F Part of Thermo Fisher Scientific

4790 Continuous Gamma Level System Installation Guide P/N 717830 Revision F

2009 Thermo Fisher Scientific Inc. All rights reserved. Microsoft and Windows are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries. HART is a registered trademark of the HART Communication Foundation. All other trademarks are the property of Thermo Fisher Scientific Inc. and its subsidiaries. Thermo Fisher Scientific Inc. (Thermo Fisher) makes every effort to ensure the accuracy and completeness of this manual. However, we cannot be responsible for errors, omissions, or any loss of data as the result of errors or omissions. Thermo Fisher reserves the right to make changes to the manual or improvements to the product at any time without notice. The material in this manual is proprietary and cannot be reproduced in any form without expressed written consent from Thermo Fisher.

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Revision History Revision Level Date Comments B 02-05 Initial release C 04-06 Address change. D 09-07 Revised per ECO 5986. E 11-08 Revised per ECO 6672. F 10-09 Revised per ECO 7127. Thermo Fisher Scientific 4790 Installation Guide v

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Contents Safety Information & Guidelines... ix Safety Considerations...ix Warnings, Cautions, & Notes...ix Chapter 1 Product Overview... 1-1 Associated Documentation... 1-1 Chapter 2 Handling & Storage... 2-1 ESD Procedures... 2-1 Unpacking, Inspection, & Storage... 2-2 Packing, Shipping, Transporting, & Receiving... 2-2 Chapter 3 Installation... 3-1 General... 3-1 Licensing... 3-2 Source-Detector Configurations... 3-2 Guidelines... 3-3 General... 3-3 Power Options... 3-4 The Transmitter... 3-4 Installing Transmitter Boards... 3-5 AC Power Supply... 3-6 The Detector... 3-7 Alignment... 3-7 Measurable Range... 3-8 Top of Range... 3-8 Bottom of Range... 3-9 The Source... 3-9 Fan Source... 3-9 Strip Source... 3-10 Multiple Detectors and / or Source Heads... 3-11 Chapter 4 Wiring... 4-1 Preparation... 4-1 The Transmitter... 4-2 EMC Requirement for ATEX Version of 1400S Transmitters... 4-2 Board Configurations... 4-3 General Wiring Procedure... 4-3 Thermo Fisher Scientific 4790 Installation Guide vii

Contents Detector Wiring... 4-4 Power Supply Wiring... 4-4 24 Vdc Input Power... 4-4 12 Vdc Input Power... 4-5 AC Power... 4-5 I/O Boards... 4-5 Current Output Wiring... 4-5 Relays... 4-5 Contact Closure (Switch) Inputs... 4-6 Serial Communications... 4-6 RS232 Wiring... 4-6 Using Serial Communications... 4-6 HART Communications... 4-7 Chapter 5 Service & Support...5-1 Contact Information... 5-1 Appendix A Appendix B Appendix C Appendix D Ordering Information...A-1 Specifications...B-1 Drawings... C-1 Adding Ferrite Clamps to 1400S Transmitter...D-1 Procedure... D-1 Index...INDEX-1 viii 4790 Installation Guide Thermo Fisher Scientific

Safety Information & Guidelines This section contains information that must be read and understood by all persons installing, using, or maintaining this equipment. Safety Considerations Warnings, Cautions, & Notes Failure to follow appropriate safety procedures or inappropriate use of the equipment described in this manual can lead to equipment damage or injury to personnel. Any person working with or on the equipment described in this manual is required to evaluate all functions and operations for potential safety hazards before commencing work. Appropriate precautions must be taken as necessary to prevent potential damage to equipment or injury to personnel. The information in this manual is designed to aid personnel to correctly and safely install, operate, and/or maintain the system described; however, personnel are still responsible for considering all actions and procedures for potential hazards or conditions that may not have been anticipated in the written procedures. If a procedure cannot be performed safely, it must not be performed until appropriate actions can be taken to ensure the safety of the equipment and personnel. The procedures in this manual are not designed to replace or supersede required or common sense safety practices. All safety warnings listed in any documentation applicable to equipment and parts used in or with the system described in this manual must be read and understood prior to working on or with any part of the system. Failure to correctly perform the instructions and procedures in this manual or other documents pertaining to this system can result in equipment malfunction, equipment damage, and/or injury to personnel. Warnings, cautions, and notes are used throughout this manual to alert users to potential hazards or important information. Failure to heed the warnings and cautions in this manual can lead to injury or equipment damage. Warning Warnings notify users of procedures, practices, conditions, etc. which may result in injury or death if not carefully observed or followed. The triangular icon displayed with a warning depends on the type of hazard (general, electrical, radiation). Thermo Fisher Scientific 4790 Installation Guide ix

Safety Information & Guidelines Warnings, Cautions, & Notes Caution Cautions notify users of operating procedures, practices, conditions, etc. which may result in equipment damage if not carefully observed or followed. Note Notes emphasize important or essential information or a statement of company policy regarding an operating procedure, practice, condition, etc. Tip Tips may also be used in this manual. They are suggestions or things to consider that will help you use the instrument or this manual. x 4790 Installation Guide Thermo Fisher Scientific

Chapter 1 Product Overview Refer to the 4790 User Guide (P/N 717831) for a description of instrument functions and features, ordering information, and product specifications. Associated Documentation In addition to this guide, the following documents must be read and understood by all persons installing, using, or maintaining this equipment: 4790 User Guide (P/N 717831) Gamma Radiation Safety (P/N 717904) Thermo Fisher Scientific 4790 Installation Guide 1-1

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Chapter 2 Handling & Storage This chapter addresses procedures for handling electrostatic discharge (ESD) sensitive equipment, as well as procedures for unpacking, inspecting, and storing of the system. Caution This system is an ESD sensitive instrument. Use proper ESD protective equipment and procedures. Failure to comply with ESD procedures can result in circuit damage. ESD Procedures The instrument contains electronic components that can be damaged from discharges of static electricity. Ordinarily, handling the circuit boards by their edges will not damage the circuits. Caution Do not touch the circuit board components. Observe the following when installing, setting up, servicing, troubleshooting, or repairing the instrument: 1. Use an antistatic bag. Most instrument subassemblies are shipped in a special antistatic bag. When not installed, keep the assembly in the bag as often as possible. 2. Remove ESD sensitive subassemblies only under the following conditions: a. When at a designated static-free workstation or when the bag is grounded at a field site. b. After the conductive area of the container has been neutralized. c. After making firm contact with an antistatic mat and / or firmly gripping a grounded individual. 3. Personnel handling ESD sensitive devices should be neutralized to a static-free workstation by means of a grounding wrist strap that is connected to the station or to a good grounding point at the field site. Thermo Fisher Scientific 4790 Installation Guide 2-1

Handling & Storage Unpacking, Inspection, & Storage 4. Do not allow clothing to make contact with ESD sensitive devices. 5. Avoid touching edge connectors and components. 6. Avoid partially connecting ESD sensitive devices. These devices, especially the power supply connector, can be damaged by floating leads. 7. Ground test equipment. Unpacking, Inspection, & Storage 8. Avoid static charges during troubleshooting. Note Inspection, adjustment, installation, and maintenance of the instrument must be performed by experienced personnel only. 1. Upon receipt, inspect the instrument for damage that may have occurred while in transit. If there is evidence of rough handling or damage, file a damage claim with the transportation company immediately. Notify Thermo Fisher and / or your sales representative as soon as possible. 2. Carefully inspect the packing material prior to discarding it to ensure that all equipment and instruction paperwork has been removed. 3. Use the original packing material and container for storage if necessary. 4. If storing the instrument, the storage environment should be protected, free from extremes of temperatures and high humidity, and fall within the environmental constraints listed in the specifications (Appendix B). Packing, Shipping, Transporting, & Receiving All personnel involved in the packing, shipping, or receiving of hazardous material must be trained in accordance with the United States Department of Transportation (DOT) and OSHA hazardous materials regulations or in accordance with the Canadian Nuclear Safety Commission (CNSC) regulations. 2-2 4790 Installation Guide Thermo Fisher Scientific

Chapter 3 Installation Read Gamma Radiation Safety (P/N 717904) prior to installing the equipment. Tip Copies of the drawings referenced in this manual are provided in Appendix C. General The Thermo Scientific 4790 consists of three components: 1. 1400A (non-metallic) or 1400S (stainless steel) transmitter 2. 7002Z ion chamber detector 3. Source head: Narrow beam (Models 5200-5204), fan beam (Models 5205-5208, 5210), strip source (Models 5194-5196) Note In this manual, the generic use of transmitter or transmitters implies the 1400A and 1400S. The specific model name will be used only when necessary. The combination of the detector and the source head is referred to as the gauge head. For transmitter to detector layout details, refer to drawing 868736. For mounting dimensions, refer to drawing 951-7002Z0-01. The source head used with the detector depends on the requirements of the application. Refer to the appropriate drawing for your source. Thermo Fisher Scientific 4790 Installation Guide 3-1

Installation Licensing Licensing Warning The instrument is a nuclear device regulated by federal and / or state authorities. You are responsible for knowing and following the pertinent safety and regulatory requirements. Refer to Gamma Radiation Safety (P/N 717904) for a summary of these requirements. Warning Moving or removing an installed source housing or any assembly that includes a source housing requires a person who is specifically licensed to install and commission Thermo Scientific source heads. In the United States, your general license permits you to own and install all of the instrument s components, including the source head. However, you may not commission the instrument (remove the lock and open the source housing shutter for the first time) without a specific license authorizing radiation commissioning of the instrument. In Canada, you are only allowed to remove the instrument from the shipping container if your CNSC license has a condition authorizing mounting / dismounting of devices. For assistance obtaining a license or commissioning / decommissioning the instrument, contact Thermo Fisher. Source-Detector Configurations The gauge consists of one or more source heads, one or more detectors, and a transmitter. Source heads are available with either a narrow or fan-shaped beam or with a strip source configuration. Strip sources emit radiation evenly along the length of the source. For most applications, ion chamber detectors are used, and for certain very narrow span applications (level measurement range of approximately two inches), a scintillation detector may be used. Some applications may require multiple sources and / or detectors. Three possible configurations are illustrated below. Figure 3 1. 3-2 4790 Installation Guide Thermo Fisher Scientific

Installation Guidelines Guidelines Warning Do not install the system in any hazardous area other than those approved. Refer to the equipment tag for the specific approvals applicable to the configuration of your instrument. Warning Do not apply power to the instrument in any hazardous area unless the safety ground is properly wired inside the instrument and the cover is properly installed. General Review the following guidelines when planning gauge installation. 1. Correct power source is available. See Power Requirements later in this chapter. 2. Operating temperature range: a. Transmitter: -40 C to 60 C (-40 F to 140 F) b. 7002Z ion chamber detector: -25 C to 60 C (-13 F to 140 F) 3. The transmitter should be mounted so that the display is easily seen and the keypad on the transmitter is easily accessible. 4. The transmitter should not be mounted near high voltage, high current, corrosive vapors, corrosive liquids, or corrosive esters. 5. There should be enough clearance to install and service the gauge head. Refer to the appropriate drawings for your type of gauge and mount (Appendix C). 6. The source housing should be positioned so that the radioactive source identification tag is visible. The source housing tag should be upright. 7. The gauge should not be mounted where process overflow or other material can collect in the beam path. The source shutter mechanism must be kept free of debris. 8. The maximum cable length between the transmitter and the last detector should not exceed 2500 feet (763 m). Thermo Fisher Scientific 4790 Installation Guide 3-3

Installation The Transmitter Power Options 1. Transmitter a. 1400A 115/230 Vac input (100 240 Vac), 50/60 Hz, 25 VA 24 Vdc input (20 28 Vdc), 12 W 12 Vdc input (9 15), 15 W max (requires optional PCB) b. 1400S 115/230 Vac input (100 240 Vac), 50/60 Hz, 17.2 W 24 Vdc input (20 28 Vdc), 12 W 2. 7002Z ion chamber detector: Powered by transmitter. The Transmitter Warning Do not install the unit in any hazardous area other than those approved. Refer to the equipment tag for the specific approvals applicable to the configuration of your instrument. Follow all instructions on the installation drawings. Warning Do not apply power to the unit in any hazardous area unless the safety ground is properly wired inside the unit and the cover is properly installed. Warning Use proper lifting procedures during installation to avoid injury. 1. Refer to the proper dimensional drawing for the transmitter mounting dimensions (868212 for 1400A or 208-140002 for 1400S). 2. Mount the transmitter in one of the following two ways: - Four screws by placing one screw through each of the four holes in the transmitter enclosure s flange and tightening. - Four nuts, four bolts, and eight washers by placing one bolt through each of the four holes in the transmitter enclosure s flange, with one washer on each side. Screw on the nuts, and tighten the bolts. 3-4 4790 Installation Guide Thermo Fisher Scientific

Installation The Transmitter Installing Transmitter Boards Warning Remove all power from the unit prior to opening the transmitter enclosure. Electrocution can result if power is present. The following procedure applies to all transmitter boards except for the AC power supply. Refer to Replacing the AC Power Supply later in this chapter. 1. Verify that power has been removed from the transmitter. 2. Remove the screws on the faceplate (cover) and open it. 3. If replacing a board, remove the board that is currently installed: a. Unplug any screw-in terminal connectors that have been wired from the board. b. Remove the board retaining screw in the upper card guide. c. Firmly but carefully push down on the top edge of the board to disengage the board connector from the transmitter. Pull up and out on the bottom edge of the board to remove it. 4. Align the board with the upper and lower card guide slots, and insert the board into the slots. 5. Line up the 3-pin by 16-pin male connector on the board with the corresponding connector on the back of the transmitter. 6. Firmly but carefully push on the board until the connector is fully seated. 7. Insert and tighten the board retaining screw in the upper card guide. 8. Connect the screw-terminal connector(s) to the corresponding replacement board connectors. 9. Refer to Chapter 4 for wiring procedures. 10. Close the transmitter and tighten the cover screws. Thermo Fisher Scientific 4790 Installation Guide 3-5

Installation The Transmitter AC Power Supply Warning If a power supply fails, the input capacitor might still be charged at a high voltage (up to 400 V). Caution Do not remove the 4 screws which are used to secure the power supply to the mounting bracket. The power supply and mounting bracket are placed as a single unit. Note The old power supply assembly is not field repairable. 1. Follow the procedure in step 3 above to remove all other transmitter boards (CPU, PCB 1, PCB 2, PCB 3, and PCB 4). 2. Remove the two hold-down screws from the base of the power supply mounting bracket. These screws secure the power supply mounting bracket to the main board. 3. Disconnect cables from the power supply (AC, DC, and Protective Safety Ground). If replacing the power supply, remove the existing power supply and mounting bracket assembly. Replace it with the new supply. 4. Connect the cables to the replacement power supply (see AC Power in Chapter 4 for wiring instructions). 5. Tighten the two hold-down screws to secure the power supply to the main board. (A screw-holding screwdriver facilitates installation.) 6. Reinstall the transmitter boards. 3-6 4790 Installation Guide Thermo Fisher Scientific

Installation The Detector The Detector Warning Installation must be in accordance with local and national electric codes for the area classifications. Warning The source housing handle must be in the OFF position during installation. Warning Do not reach inside the source housing at any time during installation. Warning Use proper lifting procedures during installation to avoid injury. Alignment Refer to the appropriate installation and layout dimensional drawings for the detector supplied with your gauge (for the 7002Z ion chamber detector, refer to drawing 868736). The source housing and detector are normally installed across the diameter of the vessel. If mechanisms internal to the process vessel would interrupt the radiation beam, you can install the housing and detector slightly off center. Refer to Figure 3 2. If the angle between the source and detector relative to the center of the vessel is going to be less than 130º, contact Thermo Fisher. Figure 3 2. It is important to mount the gauge head securely, since any movement or change in alignment can affect the gauge s calibration. When mounting the source, be sure to include a means of aiming the beam several degrees left or right so the source beam can be aligned with the detector. The exact mounting method depends on the application. Align the center of the source beam as closely as possible with the centerline of the detector housing. The source beam is narrow horizontally, and the radiation is uniform only in the primary (center) part of the beam. The radiation in the secondary part of the beam is attenuated by the shielding in the source housing. Thermo Fisher Scientific 4790 Installation Guide 3-7

Installation The Detector Figure 3 3. To determine the primary beam width, you will need the included angle of the beam, which is typically approximately 12. For each degree, the beam will be 1 unit wide for every 5 units from the source. For example, if the included angle is 12, the primary beam width will be 12 inches wide 60 inches away from the source head. At 120 inches from the source head, the beam width will be 24 inches, and so on. This is illustrated in the figure below. Figure 3 4. Determining primary beam width Measurable Range Before beginning the installation, verify that the measurable range (the range over which the process level can be measured) of the proposed installation meets the requirements of your application. The top and bottom of the measurement range depend on the source type, the detector length, and the position of the source relative to the detector s sensitive length. Sensitive length refers to the part of the detector that senses radiation. Top of Range For a fan source with an ion chamber detector, the top of the range is at the top of the sensitive length of the detector or at the center of the source housing, whichever is lower. For a strip source with an ion chamber detector, the top of the range is at the top of the sensitive length of the detector or at the top of the active length of the source, whichever is lower. 3-8 4790 Installation Guide Thermo Fisher Scientific

Installation The Source Bottom of Range For a fan source, the bottom of the range is the point where a line drawn from the fan source to the detector centerline at the bottom end of the detector s sensitive length intersects the inner vessel wall nearest the detector. Tip If the vertical beam width of the source does not fully illuminate the sensitive length of the detector, the bottom of the range is the point at which the lower limit of the source beam intersects the inner vessel wall. For a strip source, the bottom of the range is at the bottom of the detector s sensitive length or at the bottom of the active length of the source, whichever is higher. The Source Normally, the detector is mounted so that the top of the detector s sensitive length is even with the top of the fan beam or even with the top of the active length of the strip source. Refer to the appropriate drawing for your source for mounting dimensions and other details. Warning In the United States, you may uncrate and mount the source housing, but you may not remove the shipping bolt unless you are licensed to commission the gauge. In Canada, you must have a license condition permitting mounting / dismounting, and without this condition, users may not remove the source from the shipping crate. Warning Use proper lifting procedures to avoid injury. Fan Source Note the following if using a fan source. 1. The vertical angle of the fan source beam is typically 45. This means that the beam s vertical range is equal to the horizontal distance between the detector and the source. 2. Mount the source so that the top of the fan beam is aligned with the top of the sensitive length of the detector. 3. Install the source housing with its mounting face as close to the process vessel as practical, with no structural material (mounting tabs, brackets, etc.) between the beam area and the vessel. Thermo Fisher Scientific 4790 Installation Guide 3-9

Installation The Source 4. The mounting should ensure accurate beam alignment with the detector and provide for easy left-right angular adjustment. The top of the beam should be even with the top of the measurable range. Strip Source Note the following if using a strip source. 1. Refer to the source housing drawings to determine the position of the active length of the strip source and other mounting dimensions. 2. Secure the housing with the 1/2-inch (12 mm) bolts and lock washers (six places). The housing mounting face allows clearance for bolts or studs extending up to 2-1/4 inches (57 mm) from the mounting surface. 3. For best results, the measurable range should be less than the active length of the strip source(s). Position the strip source so that the bottom of the active length of the source is even with the minimum level to be measured. If the measurable range must be greater than the active length of the strip source, position the top of the active length of the source so that it is even with the maximum level to be measured. 4. The mounting surface should be vertical, and the mounting should ensure accurate beam alignment with the detector and provide for easy left-right angular adjustment. 5. Install the source housing with its mounting face as close to the vessel as practical, with no structural material (mounting tabs, brackets, etc.) between the beam area and the vessel. 3-10 4790 Installation Guide Thermo Fisher Scientific

Installation Multiple Detectors and / or Source Heads Multiple Detectors and / or Source Heads Certain applications may require the use of multiple detectors and/or source heads to span the desired measurable range. If multiple detectors are used, mount the uppermost unit so that the top of its sensitive length is even with the top of the measurable range. Mount the remaining units so that the top of each detector s sensitive length is aligned with, or slightly overlaps, the bottom of the sensitive length of the detector mounted just above it. If more than one source head is required, install the top source housing with the top of its beam even with the top of the desired measurable range. Space the other source housings evenly along the vertical dimension of the vessel. For example, if the range of interest is 12 feet and three fan beam sources are used, space the source housings four feet apart. When mounting two or more pairs of strip sources and detectors on a small diameter tank, adjacent pairs of sources and detectors may be rotated by 90 if necessary. The source and detector for each source-detector pair at the same height must still be mounted on opposite sides of the tank (180 ). After mounting the uppermost source-detector pair, the position of the next lower pair may be rotated by 90. Thermo Fisher Scientific 4790 Installation Guide 3-11

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Chapter 4 Wiring Wiring should be performed in the following order: 1. Power to the transmitter 2. The detector to the transmitter 3. Optional wiring: a. Relay contacts b. 4 20 ma current output(s) c. Contact closure inputs d. Serial communications e. Wiring to connect multiple detectors Preparation Review the following warnings and cautions carefully prior to connecting any wiring. Warning Remove all power from the unit before making any connections. Electrocution can result if power is present. Warning All wiring must be done by qualified individuals in accordance with applicable codes such as the NEC (National Electric Code) ANSI/NFPA 70 specifications or the Canadian Electrical Code Part 1. Only approved conduit, boxes, and fittings may be used. Warning Do not apply power to the unit in any hazardous area unless the safety ground is properly wired inside the unit and the cover is properly installed. Warning For hazardous location installations, the cable entries must be sealed per drawing 868736. Thermo Fisher Scientific 4790 Installation Guide 4-1

Wiring The Transmitter Warning For non-hazardous location installations, the cable entries into the enclosure must be sealed with a compound to protect against the passage of gas or vapors. The sealing compound should not be affected by the surrounding atmosphere or liquids. The sealing compound must have a thickness of at least 5/8 inch (16 mm). Warning If metal conduit is used, the conduit must be grounded. Warning Connect the AC wiring earth ground to the internal safety ground terminal, as shown in the wiring diagram. Refer to AC Power later in this chapter to change the AC supply voltage. The Transmitter EMC Requirement for ATEX Version of 1400S Transmitters Drawing 868736 provides general guidance for routing the cables to the instrument. Drawing 868680-4 describes the function and wiring requirements for each connector on the boards. This drawing also shows cable requirements, power requirements, and grounding locations. The wiring label on the top of the instrument s detector-transmitter chassis also provides connector wiring information for the CPU, power, and temperature compensation boards. In order for the 1400S transmitter to meet electromagnetic emission requirements for CE-EMC approvals, ferrite clamps must be installed within the transmitter enclosure on all power and signal wiring going into and out of the transmitter housing. One ferrite clamp is installed on the wires of the AC power supply input. Five additional ferrite clamps are provided with the EMC ferrite clamps kit (P/N 868773). The installation procedure accompanies the kit. It is also provided in Appendix D. Note The ferrite clamps are only used in the ATEX version of the 1400S transmitter. They are not required for the CSA version or the plastic 1400A transmitter. 4-2 4790 Installation Guide Thermo Fisher Scientific

Wiring The Transmitter Board Configurations The transmitter has slots for the following boards: AC power supply CPU board with 7002Z interface PCB 1: Standard current I/O / DC power board in one of the following configurations: 24 Vdc input power and current I/O #1, 2 contact inputs, 2 relays (optional) 12 Vdc input power and current I/O #1, 2 contact inputs (optional) PCB 2: Optional current I/O board, 2 contact inputs, 2 relays PCB 3: Optional current I/O board, 2 contact inputs, 2 relays General Wiring Procedure Follow this general procedure to wire boards installed in the transmitter. Warning Remove all power from the unit before making any connections. Electrocution can result if power is present. Warning All wiring must be done by qualified individuals in accordance with applicable codes such as the NEC (National Electric Code) ANSI/NFPA 70 specifications or the Canadian Electrical Code Part 1. Only approved conduit, boxes, and fittings may be used. Note CSA certified fittings must be used to maintain CSA rating for the enclosure. 1. Ensure power to the gauge is removed, and open the enclosure cover. 2. Remove the plugs only from the cable conduit holes you will use. The holes are labeled on the transmitter enclosure. 3. Pull the cable through the fitting on the end of the enclosure. Leave approximately 6 inches (150 mm) of stress relief. Secure the conduit, ensuring it is completely sealed. 4. For ATEX versions of the 1400S: Install a ferrite clamp on all wiring. You will need kit 868773. Refer to Appendix D. Thermo Fisher Scientific 4790 Installation Guide 4-3

Wiring Detector Wiring 5. Connect a cable to a PCB as follows: a. Remove the plug-in screw terminal connector from the board connector. If the connector is tight, brace the board with your hand to remove the screw terminal connector, but be careful to not touch any circuit components. b. Loosen the terminal screws on the connector. Insert the wires into the connector and make connections as shown in the appropriate installation wiring drawing. c. Tighten the terminal screws to secure the wires. d. Plug the screw-terminal connector back into the corresponding onboard connector. 6. When all connections are complete, close and secure the transmitter cover. Detector Wiring Power Supply Wiring The detector is completely powered from the transmitter. The threeconductor cable provides +24 Vdc input to the detector and a 24 V bidirectional log signal, which use a common ground. The only other electrical connection to the detector is the Safety. Refer to drawing 868680-4. Note To meet the requirements of CSA 1010.1, an external switch or circuit breaker must be installed to allow the power source to be disconnected from the gauge. In addition, protective bonding (grounding) must always be provided even if a DC power source is used. 24 Vdc Input Power With 24 Vdc input power, the system is designed to operate on 20 28 Vdc. The maximum input power requirement is 12 W when all options are present. Refer to drawing 868680-4 for wiring requirements. Note To meet the requirements of CSA 1010.1, the input DC terminals must be supplied from an SELV (Safety Extra Low Voltage) source. 1. Connect +24 Vdc to pin 8 of the J5 connector on the current I/O #1 (PCB 1) board. 2. Connect the return for the +24 Vdc supply to ground, pin 9 of the J5 connector. 4-4 4790 Installation Guide Thermo Fisher Scientific

Wiring I/O Boards 12 Vdc Input Power With 12 Vdc input power, the system is designed to operate on 9 15 Vdc. The maximum input power requirement is 15 W when all options are present. Refer to drawing 868680-4 for wiring requirements. To connect 12 Vdc: 1. Connect +12 Vdc to pin 2 of the J6 connector on the current I/O #1 (PCB 1) board. 2. Connect the return for the +12 Vdc supply to ground, pin 1 or pin 3 of the J6 connector. Note The J6 connector is only present if the 12 Vdc option is installed. AC Power With AC power, the system is designed to operate on 100 240 Vac at an input frequency of 50/60 Hz. This configuration can be directly wired to either 115 or 230 Vac. The maximum input power requirement is 25 VA when all options are present. Refer to drawing 868680-4 for wiring requirements. To connect AC power: 1. Connect AC power input (L and N) to the J1 terminal block. I/O Boards Current Output Wiring 2. Connect electrical safety ground to a dedicated safety ground terminal. One current output (I/O) board is supplied as standard with the instrument. It is installed in the PCB 1 slot. Up to two optional I/O boards can be installed in the PCB 2 and PCB 3 slots. The current output is programmable between 0 and 20 ma. The minimum output is approximately 3 ma, and the maximum load is 750 ohms. The current output is normally shipped with an isolated, self-powered output configuration. You can reconfigure it with an isolated, looppowered configuration by removing the jumper from pins 3 and 4 on the J5 connector on the I/O board. In the loop-powered configuration, you must supply +24 Vdc loop power to pin 3 of J5; pin 2 of J5 is Iout+. Relays Two or four relays are available as options on the I/O board in the PCB 1 slot. Refer to drawing 868680-4 and the label inside the transmitter cover for wiring details. Relay contacts are Form C SPDT, isolated 8 A, 220 Vac. Thermo Fisher Scientific 4790 Installation Guide 4-5

Wiring Serial Communications Contact Closure (Switch) Inputs Two user-provided contact closure inputs are included on each I/O board. The contact closure inputs are dry contact inputs between ground and Switch 1 and ground and Switch 2. The gauge can be configured via software settings to execute a command or other function upon a userprovided contact opening or closing. Refer to the 4790 User Guide (P/N 717831) for instructions on assigning commands to the contact closure inputs. Serial Communications RS232 Wiring The gauge provides an RS232 single-drop serial interface. Screw terminal connectors for the ports are located on the CPU board. Refer to drawing 868680-4 for details. The serial port on a PC (COM1 or COM2) can be connected directly to the RS232 port on the gauge. This connection requires five wires: ground, transmit (TX), receive (RX), RTS, and CTS. The connections between the gauge RS232 port connector (located on the CPU board in the transmitter) and the PC serial port are summarized in the following table for standard DB9 and DB25 PC serial port connectors. Table 4 1. CPU Board (J8) RS232 Connector PC Serial Port DB9 Connector PC Serial Port DB25 Connector Pin 1, J8 (RTS) Pin 8 Pin 5 Pin 2, J8 (TX) Pin 2 Pin 3 Pin 3, J8 (CTS) Pin 7 Pin 4 Pin 4, J8 (RX) Pin 3 Pin 2 Pin 5, J8 (GND) Pin 5 Pin 7 Using Serial Communications To communicate with the gauge from a PC requires that the PC be running TMTComm, a Windows -based communications software, or another terminal emulation software. The default communication settings: 7 data bits Even parity 1 stop bit 9600 baud data rate Refer to the 4790 User Guide (P/N 717831) for additional details about setting up and using serial communications. 4-6 4790 Installation Guide Thermo Fisher Scientific

Wiring HART Communications HART Communications The HART communication protocol is supported over the 4 20 ma current output with an optional daughter board. You can communicate with the gauge using the 375 Field Communicator from Emerson Electric Co. Refer to manual 717817 for instructions. Thermo Fisher Scientific 4790 Installation Guide 4-7

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Chapter 5 Service & Support Contact Information The local representative is your first contact for support and is well equipped to answer questions. You can also contact Thermo Fisher directly for application assistance. In the United States Thermo Fisher Scientific 1410 Gillingham Lane Sugar Land, TX 77478 Phone: 713-272-0404 Fax: 713-272-2272 In Europe Thermo Fisher Scientific Ion Path Road Three Winsford Cheshire CW7 3GA United Kingdom Phone: +44 (0) 1606 548700 In Canada Thermo Fisher Scientific 14 Gormley Industrial Avenue Gormley, Ontario L0H 1G0 Phone: 905-888-8808 Fax: 905-888-8828 On the Web www.thermo.com Thermo Fisher Scientific 4790 Installation Guide 5-1

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Appendix A Ordering Information Table A 1. System ordering information Code Model 4790 4790 continuous nuclear/gamma level Code Approval 7002ZC Factory Mutual approvals 7002ZB CSA approvals Code First Detector Length 01 1 ft detector (305 mm) 02 2 ft detector (610 mm) 03 3 ft detector (915 mm); consult Thermo Fisher 04 4 ft detector (1220 mm) 05 5 ft detector (1525 mm) ; consult Thermo Fisher 06 6 ft detector (1830 mm) 08 8 ft detector (2440 mm) 10 10 ft detector (3660 mm) Code Second Detector Length (optional) XX XX ft detector (same lengths available as first detector) Code Third Detector Length (optional) XX XX ft detector (same lengths available as first detector) Code Fourth Detector Length (optional) XX XX ft detector (same lengths available as first detector) Thermo Fisher Scientific 4790 Installation Guide A-1

Ordering Information Table A 2. Detector P/N Description 210-000150 Assembly, controller, and pre-amp PCB set 220-000430 Assembly, PCB insulating cover 300-000035 Clamp, detector mounting 617-000112 End cap, detector 660-000100 O-ring, detector end cap Table A 3. Transmitter P/N Description HLT-MTXR 1400A transmitter HLT-MTXR-SS 1400S transmitter, stainless steel 886766 Kit, KRIL/4790 CPU with EPROM for level 886722-1 KIB for KRIL/4790 886420-1 4-line display 886650 AC power supply OTO545B HART interface module 886675-1 Current output module 1, no relays 886675-2 Current output module 1, with 2 Form C relays 886675-5 Current output module 2, no relays 886675-6 Current output module 2, with 2 Form C relays 868773 Kit, EMC ferrite clamps for 1400S transmitter (for ATEX units only) A-2 4790 Installation Guide Thermo Fisher Scientific

Appendix B Specifications Results may vary under different operating conditions. Table B 1. System specifications Operating principle Accuracy Stability Gamma radiation from the source passes through the process pipe and material. The amount of radiation reaching the detector decreases as the process level increases. ± 1% of span Drift less than 1.0% absolute radiation change per 6 months Table B 2. Ion chamber detector specifications Detectors per installation Supply voltage / consumption Operating temperature range Humidity Minimum operational radiation field Enclosure Connections Output Interconnecting cable Up to 4 detectors may be used per installation Power supplied from transmitter -25 C to +60 C (-13 F to +140 F) 10% to 95% RH non-condensing 0.2 mr/hr ANSI 300 Series stainless steel Two 3/4-inch NPT conduit entries Single 3-wire instrument cable for digital communication to transmitter; in multi-detector installations, each detector is wired in parallel Maximum length 2500 ft (763 m) between detector and transmitter Standard 3-conductor, shielded (Belden 9365) Thermo Fisher Scientific 4790 Installation Guide B-1

Specifications Table B 3. 1400A transmitter specifications Power supply NEMA 4X FM/CSA approvals Dimensions Weight Operating temperature Circuit protection Serial interface Current output Contact closure inputs Power input is transient surge protected. AC power: 115/230 Vac (100 240 V), 50/60 Hz, 25 VA DC power: 24 Vdc (20 28 V), 12 W; or 12 Vdc (9 15 V), 15 W Class I, Div. 2, Groups A, B, C, D Class II, Div. 2, Groups F, G Class III NEMA 4X, Type 4X 12 x 8.5 x 8.25 in. (305 x 216 x 210 mm) 7.5 lb (3.4 kg) -40 C to +60 C (-40 F to +140 F) Meets IEC 801-1, -2, and -3. Current outputs and relay outputs are isolated RS232, full duplex communication with remote terminal, printer, PC, or host computer One standard; maximum of two additional Standard Configuration: Isolated, self-powered, 700-ohm maximum load Alternate Configuration: Isolated, loop-powered, 24 Vdc nominal supply voltage, 700-ohm maximum load Two per I/O board Relays Two optional per I/O board; six maximum. Form C SPDT, isolated, 8 A, 220 Vac B-2 4790 Installation Guide Thermo Fisher Scientific

Specifications Table B 4. 1400S transmitter System architecture Display Current output Serial outputs Multiprocessor-based electronics for uninterrupted output during data entry and system interrogation. All user data doubly stored in non-volatile memory with no battery backup required. Four-line backlit display; up to eight readouts displayed simultaneously One standard. Maximum of three current outputs available, with each representing independent span channels Standard configuration: Isolated, self-powered, 800-ohm max. load Alternate configuration: Isolated, loop-powered, 24 Vdc nominal supply voltage, 800-ohm max. load RS485 half-duplex. RS232 full duplex. Contact closure outputs Up to 16 available. 115 Vac / 28 Vdc SPDT @ 10 amps (230 Vac SPDT @ 8 amps) Inputs Programming options Power supply Up to three additional I/O available; dry contact closure. Menu driven, direct keypad entry AC power: 115/230 Vac (100 240 V), 50/60 Hz, 17.2 W DC power: 24 Vdc (20 28 V), 12 W Dimensions See drawing 208-140002. Approvals NEMA 4X / IP65 ATEX: II 3 G Ex na IIC T6 (-40 C Ta 60 C) DC version, EPSILON 08 ATEX 2387: II 3 G Ex na nc IIC T4 (-20 C Ta 50 C) AC version, EPSILON 08 ATEX 2387 CSA: Class I, Div. 2, Groups A, B, C, and D; Class II, Div. 2, Groups F and G; Class III Enclosure type 4X, Temperature code T3C / T4 Power = 20 28 Vdc, 12 W, 100 240 Vac, 50/60 Hz, 2 A, 25 VA maximum Ambient temperature variation: -40 C to +60 C (-40 F to +140 F) CE compliant Low Voltage Directive compliant EMC Directive compliant Thermo Fisher Scientific 4790 Installation Guide B-3

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Appendix C Drawings Note Information presented in this chapter has been regenerated from original drawings. Every effort is made to maintain document accuracy. However, in order to enhance legibility, the documents may have been restructured, and some information may have been intentionally excluded. Therefore, the drawings within this guide may not be an exact duplicate of the original drawings. Note Drawings in this manual are included for reference only and may not be the current version. Contact the factory if you need a copy of the latest revision. Table C 1. Wiring: Ion Chamber Detectors Drawing # Rev. Description Page 868736 B Installation layout, 1400A / 1400S transmitter to 7002Z ion chamber detectors (1 sheet) C 3 868680-4 B Wiring diagram (3 sheets) C 4 Table C 2. Mechanical Drawing # Rev. Description Page 868212 F 1400A transmitter dimensional diagram (1 sheet) C 7 208-140002 A 1400S transmitter dimensional diagram (1 sheet) C 8 951-7002Z0-01 2 7002Z ion chamber detector installation dimensions (1 sheet) C 9 D-1549-08 3 Typical source / detector installation drawing (2 sheets) C 10 864563 B Mounting dimensions Model 5200 source housing, 100 mci or less (1 sheet) 865453 C Mounting dimensions Model 5201 source housing, 100 mci or less (1 sheet) 865463 D Mounting dimensions Model 5202 source housing, 500 mci or less (1 sheet) C 12 C 13 C 14 Thermo Fisher Scientific 4790 Installation Guide C-1

Drawings Drawing # Rev. Description Page 865474 C Mounting dimensions Model 5203 source housing, 2000 mci or less (2 sheets) 865484 C Mounting dimensions Model 5204 source housing, 8000 mci or less (2 sheets) 865494 C Mounting dimensions Model 5205 source housing, 100 mci or less (1 sheet) 865504 C Mounting dimensions Model 5206 source housing, 500 mci or less (1 sheet) 865514 C Mounting dimensions Model 5207 source housing, 2000 mci or less (1 sheet) 865524 D Mounting dimensions Model 5208 source housing, 8000 mci or less (1 sheet) 866891 A Mounting dimensions Model 5210 source housing, 10 Ci CS-137 or 3 Ci Co-60 (1 sheet) 860463 B Mounting dimensions Model 5194 strip source, 1 ft, 500 mci (1 sheet) 860473 C Mounting dimensions Model 5195 strip source, 2 ft, 1000 mci (1 sheet) 860483 C Mounting dimensions Model 5196 strip source, 3 ft, 1000 mci (1 sheet) C 15 C 17 C 19 C 20 C 21 C 22 C 23 C 24 C 25 C 26 Table C 3. Source Housing Options Drawing # Rev. Description Page 866764 -- Interlock option for Models 5205 5208 source heads (1 sheet) 866664 B Pneumatic actuator and position switch for Model 5205 5208 (1 sheet) 867269 B Mounting instructions Remote manual actuator for Models 5202 5208 (2 sheets) C 27 C 28 C 29 C-2 4790 Installation Guide Thermo Fisher Scientific

Drawings Figure C 1. 868736: Installation layout, 1400A / 1400S transmitter to 7002Z ion chamber detectors (sheet 1 of 1) Thermo Fisher Scientific 4790 Installation Guide C-3

Drawings Figure C 2. 868680-4: Wiring diagram, 1400A / 1400s transmitter to 7002Z ion chamber detectors (sheet 1 of 3) C-4 4790 Installation Guide Thermo Fisher Scientific

Drawings Figure C 3. 868680-4: Wiring diagram, 1400A / 1400S transmitter to 7002Z ion chamber detectors (sheet 2 of 3) Thermo Fisher Scientific 4790 Installation Guide C-5

Drawings Figure C 4. 868680-4: Wiring diagram, 1400A / 1400S transmitter to 7002Z ion chamber detectors (sheet 3 of 3) C-6 4790 Installation Guide Thermo Fisher Scientific

Drawings Figure C 5. 868212: 1400A transmitter installation dimensions (sheet 1 of 1) Thermo Fisher Scientific 4790 Installation Guide C-7

Drawings Figure C 6. 208-140002: 1400S transmitter dimension diagram (sheet 1 of 1) C-8 4790 Installation Guide Thermo Fisher Scientific

Drawings Figure C 7. 951-7002Z0-01: 7002Z ion chamber detector installation dimensions (sheet 1 of 1) Thermo Fisher Scientific 4790 Installation Guide C-9

Drawings Figure C 8. D-1549-08: Typical source / detector installation drawing (sheet 1 of 2) C-10 4790 Installation Guide Thermo Fisher Scientific

Drawings Figure C 9. D-1549-08: Typical source / detector installation drawing (sheet 2 of 2) Thermo Fisher Scientific 4790 Installation Guide C-11

Drawings Figure C 10. 864563: Mounting dimensions Model 5200 source housing, 100 mci or less (sheet 1 of 1) C-12 4790 Installation Guide Thermo Fisher Scientific

Drawings Figure C 11. 865453: Mounting dimensions Model 5201 source housing, 100 mci or less (sheet 1 of 1) Thermo Fisher Scientific 4790 Installation Guide C-13

Drawings Figure C 12. 865463: Mounting dimensions Model 5202 source housing, 500 mci or less (sheet 1 of 1) C-14 4790 Installation Guide Thermo Fisher Scientific

Drawings Figure C 13. 865474: Mounting dimensions Model 5203 source housing, 2000 mci or less (sheet 1 of 2) Thermo Fisher Scientific 4790 Installation Guide C-15

Drawings Figure C 14. 865474: Mounting dimensions Model 5203 source housing, 2000 mci or less (sheet 2 of 2) C-16 4790 Installation Guide Thermo Fisher Scientific

Drawings Figure C 15. 865484: Mounting dimensions Model 5204 source housing, 8000 mci or less (sheet 1 of 2) Thermo Fisher Scientific 4790 Installation Guide C-17

Drawings Figure C 16. 865484: Mounting dimensions Model 5204 source housing, 8000 mci or less (sheet 2 of 2) C-18 4790 Installation Guide Thermo Fisher Scientific

Drawings Figure C 17. 865494: Mounting dimensions Model 5205 source housing, 100 mci or less (sheet 1 of 1) Thermo Fisher Scientific 4790 Installation Guide C-19

Drawings Figure C 18. 865504: Mounting dimensions Model 5206 source housing, 500 mci (sheet 1 of 1) C-20 4790 Installation Guide Thermo Fisher Scientific

Drawings Figure C 19. 865514: Mounting dimensions Model 5207 source housing, 2000 mci or less (sheet 1 of 1) Thermo Fisher Scientific 4790 Installation Guide C-21

Drawings Figure C 20. 865524: Mounting dimensions Model 5208 source housing, 8000 mci or less (sheet 1 of 1) C-22 4790 Installation Guide Thermo Fisher Scientific

Drawings Figure C 21. 866891: Mounting dimensions Model 5210 source housing, 10 Ci Cs-137 or 3 Ci Co-60 (sheet 1 of 1) Thermo Fisher Scientific 4790 Installation Guide C-23

Drawings Figure C 22. 860463: Mounting dimensions Model 5194 strip source, 1 ft, 500 mci (sheet 1 of 1) C-24 4790 Installation Guide Thermo Fisher Scientific

Drawings Figure C 23. 860473: Mounting dimensions Model 5195 strip source, 2 ft, 1000 mci (sheet 1 of 1) Thermo Fisher Scientific 4790 Installation Guide C-25

Drawings Figure C 24. 860483: Mounting dimensions Model 5196 strip source, 3 ft, 1000 mci (sheet 1 of 1) C-26 4790 Installation Guide Thermo Fisher Scientific

Drawings Figure C 25. 866764: Interlock option for Models 5202 5208 source heads (sheet 1 of 1) Thermo Fisher Scientific 4790 Installation Guide C-27

Drawings Figure C 26. 866664: Pneumatic actuator and position switch for Models 5202 5208 (sheet 1 of 1) C-28 4790 Installation Guide Thermo Fisher Scientific

Drawings Figure C 27. 867267: Mounting instructions Remote manual actuator for Models 5205 5208 (sheet 1 of 2) Thermo Fisher Scientific 4790 Installation Guide C-29

Drawings Figure C 28. 867269: Mounting instructions Remote manual actuator for Models 5202 5208 (sheet 2 of 2) C-30 4790 Installation Guide Thermo Fisher Scientific

Appendix D Adding Ferrite Clamps to 1400S Transmitter Note The ferrite clamps are only used in the ATEX version of the 1400S transmitter. They are not required for the CSA version or the plastic 1400A transmitter. If needed, the ferrite clamps kit may be ordered separately. In order for the 1400S transmitter to meet electromagnetic emission requirements for CE-EMC approvals, ferrite clamps must be installed within the transmitter enclosure on all power and signal wiring going into and out of the transmitter housing. Procedure The ferrite clamp is part of the EMC ferrite clamps kit (P/N 868773). The kit consists of the following: Five ferrite clamps (P/N 5-2720-007) At least one clamp key The procedure The clamp key is used to remove the ferrite clamp from the wire during wiring changes. Figure D 1. Ferrite clamps A ferrite clamp will need to be installed on all wiring that enters or exits the transmitter enclosure. This may be a shielded twisted pair or a bundle of individual wires. The limitation is that the wires through one clamp cannot exceed 5 mm in diameter. Also, all of the clamps MUST be installed within the enclosure. Thermo Fisher Scientific 4790 Installation Guide D-1

Adding Ferrite Clamps to 1400S Transmitter Procedure Figure D 2. Ferrite clamps installed within enclosure As shown in Figure D 2 the ferrite clamp can be placed around a shielded twisted pair cable or a bundle of individual cables, as long as the diameter of the bundle does not exceed 5 mm (a little over 3/16 ). The ferrite clamp kit (P/N 868773) contains five clamps. Depending on your wiring scheme, you may need additional clamps. They can be ordered using part number 5-2720-007. For example, in a Thermo Scientific DensityPRO+ system with a scintillation detector, flow input, and three outputs, there will be eight shielded twisted pair cables and one power cable. This system would require a total of nine ferrite clamps. So you would need either two kits or one kit and four additional clamps to be EMC compliant. Note All ATEX version 1400S transmitters shipped after August 2009 will contain one ferrite clamp kit and will have one ferrite clamp installed on the AC voltage input wiring. Note If the locking mechanism of the clamp should fail, a plastic wire tie can be used to secure the clamp around the wire. D-2 4790 Installation Guide Thermo Fisher Scientific