3. Compatible Sensor Wiring 4. Batch Contact Wiring See section 9 for simple and advanced mode configuration options.

Transcription

1 GF SIGNET ontroller Instructions B1/98 ENGLISH AUTION! Refer to this instruction manual for more details. Remove power to unit before wiring input and connections. Follow instructions carefully to avoid personal injury. ontents 1. Dial Selection 2. Power onnection 3. ompatible Sensor Wiring 4. ontact Wiring 5. Remote ontrol Wiring 6. End of /ounter Pulse Output Wiring 7. ontact Wiring s 8. urrent Output Wiring s 9. Operation Modes 10. Menu Functions 11. Parts and Accessories 12. Specifications 13. Quick Reference Menu Parameters 14. Maintenance 15. Troubleshooting 1. Dial Selection The analog display shows percentage of batch complete 0 100%, or percentage of remaining batch 100 0% on the reversible dial face plate. Meter deflection is fixed from left to right. The instrument is shipped with the percentage of batch complete 0 100% scale shown. Reverse the face plate for either scale, as desired. 2. Power onnection AUTION! Never connect 115 VA or 230 VA to rear power terminals. High voltage A will damage instrument and void warranty. A B % 100 ALARM 1 ALARM 2 0 % ALARM 1 ALARM 2 D = Double Insulated = D or A power 1224 V 10 W External power supply VD OR VA Maximum 420 ma loop impedance (sec. 8A) is affected by the supply voltage. To reduce the possibility of noise interference, isolate A power lines from signal lines. 3. ompatible Sensor Wiring 4. ontact Wiring See section 9 for simple and advanced mode configuration options. Freq. IN Std. Sensor Freq. IN Sen. Pwr. Iso. Gnd Open ollector Sensor GF SIGNET Sensors: Red 515 Black Shld. Red Black Shld Vortex* flow N valve N A or D power To reduce the possibility of noise interference, route sensor cable away from A power lines. *Vortex sensor or system frequency Maximum alarm contact ratings: 5 30 VD, VA, or VA To reduce the possibility of noise interference, isolate A power lines from signal lines.

2 5. Remote ontrol Wiring Rear START, STOP, and RESUME (Rsm) terminals can provide remote batch control from a distance using one of four methods: Mechanical switch closures (shown) End of batch pulse from a second (sec. 6) End of batch contact closure from a second (sec. 7). End of batch current pulse from a second (sec. 8). Momentary Switch ontacts (customer supplied) Remote Rsm RTN Resume 6. End of /ounter Pulse Output Wiring See section 9 for simple and advanced mode configuration options. A. External counter connection 10 kω Gnd NT/EOB IN Gnd 5 30 VD External ounter Daisy chaining two batch controllers together Gnd NT/EOB Remote Rsm RTN First Second Use 4conductor shielded cable for remote control lines up to 30 m (100 ft) max. Use 2conductor shielded twistedpair cable for lines up to 30 m (100 ft.) max. 7. ontact Wiring s A. Two Stage Shutdown (advanced mode only, sec. 9.2) 8. urrent Output Wiring s A. ompletion (simple or advanced mode, sec. 9) N N Fuse** 1/8A * 4 20 ma Bypass line A or D power urrent Main line flow Valve to tank **1/8A fuse recommended (customer supplied) * 420 ma is internally powered (nonisolated), maximum loop impedance 350 Ω with a 12 V instrument supply voltage, 950 Ω with a 24 V instrument supply voltage. Maximum alarm contact ratings: 5 30 VD, VA, or VA To reduce the possibility of noise interference, isolate A power lines from signal lines. To isolate and prevent ground loop problems: 1. Use monitor device with isolated inputs, or 2. Use separate D supply for and monitor device, or 3. Power with VA step down transformer Alarm (simple or advanced mode, sec. 9) OR Overrun Alarm (advanced mode only, sec. 9.2) Valve ontrol (advanced mode only, sec. 9.2) #5 ( ) 4 20 ma #6 ( ) Alarm device N N A or D power urrent George Fischer electronic actuator with PE 22P positioner required Maximum alarm contact ratings: 5 30 VD, VA, or VA To reduce the possibility of noise interference, isolate A power lines from signal lines. Output compatible with the following George Fischer electronic actuators/pe 22P positioner models: EA 20, EA 30, EA 41, and EA 50

3 Section 7 ontinued.... End of Pulse (advanced mode only, sec. 9.2) Daisy chaining two batch controllers together for a second batching stage. Section 8 ontinued.... End of Pulse (advanced mode only, sec. 9.2) Daisy chaining two batch controllers together for a second batching stage. N N First Second Rsm Remote Use 2conductor shielded twistedpair cable for contact lines up to 30 m (100 ft.) max. RTN urrent Remote Rsm RTN First Second Wiring MUST be connected exactly as shown. Use 2conductor shielded twistedpair cable for lines up to 30 m (100 ft) max. 9. Operation Modes This section gives a detailed description of the 's simple and advanced operation modes (sec. 14) and how they affect the batch contact, End of batch/totalizer, option contact, and current. 9.1 Simple Operation Mode ontact (sec. 4): In simple mode, the batch contact is dedicated for on/off control. It is energized at the start of a batch and deenergized at the end of a batch. It also deenergizes when STOP is selected from the front keypad or initiated by a remote contact closure to the rear STOP terminals (sec. 5). A RESUME command can also be initiated by either method to complete the batch. The front panel batch indicator turns on when the batch contact is energized. ounter/end of Pulse Output (sec. 6): In simple mode, the is configured as a counter pulse. The emits a 130 millisecond pulse for each engineering (total) unit measured. The is a open collector type which requires an external pull up resistor and power supply for external counter use (sec. 6). ontact Alarm (sec. 7B): This function provides alarm capability if flow is not detected in 30 seconds after a batch cycle starts. If the flow sensor signal is missing, the option contact energizes and the front panel contact indicator turns on, signaling the missing sensor signal. The batch contact also deenergizes, closing the flow control valve and stopping the batch. The alarm condition will remain until the front panel key is ed or a remote contact closure is made to the rear STOP terminal (sec. 5). started... Sensor input option contact batch contact urrent Output ompletion (sec. 8A): This function is offered in the simple or advanced operation mode. The is a linear increase from 4 ma at batch start to 20 ma at batch end. running... 0% 4 ma 100% 20 ma 9.2 Advanced Operation Mode Overrun omp: automatic manual ontact (sec. 4) The batch contact is dedicated for on/off control and is either manually or automatically compensated for batch overrun. Manual overrun compensation allows the operator to compensate for valve closure time in a batching system. The operator is prompted to enter a batch volume that deenergizes the batch contact early, compensating for valve closing time and eliminating batch overrun. Automatic overrun compensation counts sensor pulses during the batch cycle, and any excess pulses after the batch stops. The instrument calculates the estimated batch overrun based on the additional sensor pulses, then automatically reduces the next batch size for the next batch. During the next batch cycle, the batch contact deenergizes early, thus closing the flow control valve early and eliminating batch overrun. ounter/end of Pulse Output (sec. 6): In advanced mode, the can be configured as either a counter pulse (sec. 9.1) or as an end of batch pulse. When configured as an end of batch pulse, the emits a 500 millisecond pulse at the completion of every batch. The is a open collector type which requires an external pull up resistor and power supply for external counter use (sec. 6).

4 Two Stage ontact Two Stage Shutdown (sec. 7A): This function is designed to prevent over filling or to minimize water hammer. Both the batch and the option contact are energized when the batch starts. The option contact then deenergizes at a programmed batch percentage, forcing flow through a smaller bypass line to reduce the fill rate. After the entire batch is measured, the batch contact deenergizes, completing the sequence. Front keypad and remote START, STOP, and RESUME inputs (sec. 5) also control the option contact. The front panel contact indicator turns on when the option contact is energized. running... 0% contact batch contact 100% 90% Overrun Alarm ontact Overrun Alarm (sec. 7B): This function provides overrun alarm capability for detecting a leaky or stuck valve. If the programmed batch overrun volume is measured after the batch ends, the option contact is energized and the front panel contact indicator turns on, alarming the operator that the flow shut off valve is leaking or stuck open. To cancel alarm, the key (or remote STOP switch) once. The overrun alarm will retrigger if the condition persists. running... 0% contact batch contact Overrun 100% End of ontact End of Pulse (sec. 7): This function is designed to trigger an external batch counter or second ontroller at the end of a batch. The option contact is energized for 500 milliseconds at the end of every batch cycle. An external power supply switched through the option contact's common (OM) and normally open () terminal provides a pulse for triggering these devices. running... 0% contact batch contact 100% 500ms ontact Alarm (sec. 7B): The missing signal alarm represents a missing sensor signal after batch startup. An adjustable time delay entry (in seconds) is offered which specifies how long the instrument will wait after batch startup before initiating the missing signal alarm. See simple operation mode (sec. 9.1) for alarm operation details. Off ontact On/Off (sec. 10.4H): This function enables or disables the option contact and front panel option LED. When the option contact is configured "Off", the option contact and front panel LED are disabled. Alarm On/Off (sec. 10.4H): Alarm: On Missing signal alarm is always enabled (factory default sec. 9.1) even if the option contact is selected to be a different function. This function is designed to completely disable the missing signal alarm, if desired. TE: If disabled, the batch contact is T affected and will T signal the operator or stop the running batch if there is a problem. urrent Output: ompletion urrent Output ompletion (sec. 8A): In advanced mode, the current functions identical to the simple operation mode. See the simple operation mode explanation above. urrent Output: Valve ontrol urrent Output Valve ontrol (sec. 8B): This function is designed for use with a George Fischer electric actuator with PE 22P positioner for preventing overflow or minimizing water hammer. When a batch starts, the current is held at 20 ma, forcing the PE 22P positioner to the full open valve position. Near batch end, the gradually ramps downward to slow the flowrate, then drops to 4 ma closing the valve and ending the batch. Front keypad and remote START, STOP, and RESUME inputs also control the (sec. 5). A STOP command any time during a batch sequence will force the to 4 ma and close the PE 22P positioner. (Note: for optimum performance, the batch process should last at least 1 minute!) running... 0% valve 100% 20 ma 4 ma valve urrent Output: End of urrent Output End of (sec. 8): This function is designed to trigger a second batch controller's remote START input for a second batching stage. When the batch starts, the current remains at 0 ma until the end of the batch, then jumps to 20 ma for 500 milliseconds. The 500 millisecond current pulse triggers the second 's remote START terminal to start the second batch stage. running... 0% 0 ma 100% 20 ma 500ms

5 10. Menu Functions *Note: BATH/VIEW Menu steps B E MUST be selected for ALIBRATE Menu (sec. 10.2) or OPTIONS Menu (sec. 10.4) access. ALIBRATE (sec. 10.2) OPTIONS (sec. 10.4) Press & hold key for menu access: BATH/ VIEW (See Note*) 2 seconds 5 seconds Menus: BATH/VIEW menu (sec. 10.1): The BATH/VIEW menu is displayed during standard operation. The key controls batch start, batch stop, and batch resume operations. While a batch is not running, the operator can navigate freely through the menu by ing either UP or DOWN arrow keys. While a batch is running, ing either UP or DOWN arrow keys displays Time left, Flow rate, and Volume batched information. The BATH/ VIEW menu also offers a programmable batch size and resettable totalizer feature that allows the operator to reset the displayed total at the of a button. ALIBRATE Menu (sec. 10.2): The ALIBRATE menu contains all critical display setup and parameters. A simple security code feature prevents unauthorized tampering. The operator is required to enter a simple access code for menu access. The same code also unlocks OPTIONS menus. OPTIONS Menu (sec. 10.4): The OPTIONS menu contains setup and display features that are seldom accessed for minor display or adjustments BATH/VIEW Menu (example) Menu steps B E cannot be accessed when a batch is running. Press to stop batch cycle. Steps B E MUST be selected for ALIBRATE Menu (sec. 10.2) or OPTIONS Menu (sec. 10.4) access. To Step E A. Resume or start Main ing Sequence Volume: Gallons> Programmable Volume To step 0.0 Gallons <> to 40.3 Gallons <> to Volume batched 40.3 Gallons Resume Resume or start (sec. 10.4D) OPTIONS = Volume: Gallons 1. Enter volume 2. OR Save To exit without changes: ount Up selected (sec.10.4k) While a batch is running... Volume: Key ode: Volume: Key ode: **** 1. Enter code: 3. Time Left: <1 min <> to Time Left 60.5 Gallons/m <> to (sec. 10.4D) OPTIONS = Volume: Gallons 2. Enter volume Flow rate 40.3 Gallons <> to Volume batched Save Back to Step B. D. Gallons X 1 Total: > Resettable Totalizer Gallons X 1 Total: Permanent Total Overrun: Manual Gallons Overrun compensation (sec. 10.4D) OPTIONS = OR Reset Total? Press to reset Reset Total? To exit without changes: (sec. 10.4D) OPTIONS = Reset Total? Key ode: Reset Total? Key ode: **** 1. Enter code: Reset Total?: D. Permanent Total cannot be reset. Press to reset Reset Total?: E. E. Shown only when "advanced" mode is chosen To step A (sec. 10.4E)

6 10.2 ALIBRATE Menu (factory defaults shown in menu column 1) ALIBRATE: Enter Key ode Press keys in sequence to continue, **** will appear during code entry. G A. 1 hoose: Units: Gallons > units Units: Liter 2 hange: Set batch units: Aa Zz, 0 9, /, _ 3 Save: Back to step D. KFactor: > KFactor KFactor: Set batch KFactor: (see note*) Flow Timebase: m > Flow timebase Flow Time Base: s S m M h H d D Set timebase: S=seconds, M=minutes, H=Hours, D=Days E. Total Units: Gallons x 1 > Totalizer units Total Units: Liters X100 Set totalizer units: Az Zz, 0 9, /, _ (Label use only). Auto alibrate: KFactor > Auto alibrate Procedure Accurate reference container required. See procedure (sec. 10.3) Display shown only when advanced mode (sec.10.4e) and manual overrun comp. (sec.10.4g) is selected. To return to VIEW: To step D Auto alibrate: <> to Auto alibrate: <> to Auto al Volume: XX.XXX Gallons A. Reenter volume? Enter volume KFactor: Accept KFactor? Overrun Volume: XX.XXX Gallons D. Overrun comp. To restore original value: KFactor Modify KFactor? Save ancel OR Save "SAVING" briefly displays F. G. To return to VIEW: Total KFactor: > Totalizer KFactor Last AL: Last calibration To step A Total KFactor: Last AL: To restore original value: Set totalizer KFactor: (see note*) Last AL: Sets user defined date "SAVING" briefly displays *Note: and totalizer KFactor settings represent the number of pulses generated by the GF SIGNET flow sensor for each engineering unit of fluid measured (published in the flow sensor manual) Auto alibration Procedure The auto calibrate procedure (sec. 10.2) calculates a custom flow sensor/batch KFactor based on volumetric measurement for more precise batching. This process will compensate for installation abnormalities or nonstandard pipe sizes for maximum batch accuracy. An accurate measurement reference container (e.g. known tank volume) is required for this procedure. If auto calibration is impractical for your batch system, perform manual calibration using the KFactors published in your flow sensor manual. Requirements: A. The flow sensor must be installed in the actual batch pipeline. The flow control valve can be connected to the common () and normally open () batch contact terminals (sec. 4) or the current terminals (sec. 8B).. Either the batch contact or current MUST be used to energize and deenergize the main flow control valve which starts and stops fluid flow into the known reference container. D. Follow the steps outlined in the auto calibration procedure (sec. 10.2) to obtain your batch system's custom KFactor % GF SIGNET contact terminals (sec. 4) OR 420 ma valve control terminals (sec. 8B) Flow Sensor Flow control valve WARNING! The auto calibration procedure generates a custom batch KFactor. The batch and Totalizer KFactors are independent from one another. ALWAYS reenter your totalizer KFactor after performing the auto calibration procedure Reference ontainer

7 10.4 OPTIONS Menu (factory defaults shown in menu column 1) OPTIONS: Enter Key ode Press keys in sequence to continue, **** will appear during code entry. K A. 1 hoose: ontrast: 3 > ontrast ontrast: hange: Set contrast: 5 levels 3 Save: Back to step F G. Overrun omp: Manual > contact Overrun omp: Auto Manual Set overrun compensation: automatic or manual (sec. 9.2) Display Decimal: *****. * > Flow decimal Display Decimal: ****. ** Set flow decimal: ******. **. **** Overrun Volume: Gallons> contact Manual overrun comp selected (step G): Overrun Volume: Gallons Set overrun volume: D. E. F. Total Decimal: *******. * > Totalizer decimal Lock: OFF > VIEW Menu Lock Operating Mode: Advanced > Operation mode Pulse Output: Totalizer > Pulse Output Total Decimal: ******. ** Lock: Off On Operating Mode: Simple Advanced Advanced mode selected (step E) Set totalizer decimal: ********. ******. ** Set VIEW Menu lock: On= Set pulse (sec. 9.2): Pulse Output: End of Pulse Output: Totalizer Off= Set operation mode: Simple or Advanced F H End of (EOB) Totalizer (NT) "SAVING" briefly displays H. > contact Two Stage Setpoint%: 95.0> ontact Overrun Alarm: Gallons> ontact Set operation mode (sec. 9.2): Two Stage mode selected Two Stage Setpoint%: 99.5 Two Stage Overrun Alarm Overrun Alarm mode selected Overrun Alarm: Gallons End of Off Missing Signal Two Stage Overrun Alarm End of Set two stage setpoint %: Turn off Set overrun alarm volume: "SAVING" briefly displays To return to VIEW: To step G To restore original value: Two Stage, Overrun Alarm, End of, or Off mode selected Alarm: On > ontact Alarm: Off On Missing signal alarm: On or Off Menu Navigation Advanced mode chosen (step E): menu continues, steps F I. Simple mode chosen (step E): down arrow key advances to top of menu (step A). I. T shown if Alarm is Off (step H) Delay: 30.0 sec > ontact Delay: 25.0 sec Set missing signal time delay: sec. J. urrent Output: ompletion> urrent Set operation mode (sec. 9.2): urrent Output: ompletion urrent Output: Valve ontrol urrent Output: End of ompletion Valve ontrol End of K. ount Direction: Up > display count ount Direction: Up Down display count direction: Up or Down To return to VIEW: To step A To restore original value:

8 11. Parts and Accessories Splashproof rear cover # (code ) 5 x 5 inch adapter plate for GF SIGNET retrofit # (code ) al surface mount bracket # (code ) Power supply, 115 VA 24 VA, # Front snapon bezel, # (code ) instruction sheet # (code ) 12. Specifications General Sensor compatibility: Accuracy: Input: All GF SIGNET flow sensors ± 0.5% of batch reading Optically isolated Agency Approvals E Manufactured under ISO 9001 Enclosure: Rating: NEMA 4X/IP65 front Dimensions: 1/4 DIN, 96 x 96 x 88 mm (3.8 x 3.8 x 3.5 in.) ase materials: ABS plastic Keypad material: Sealed 4key silicone rubber Weight: Approximately 500 g (18 oz.) Display: Type: Microprocessor controlled aircore meter movement and alphanumeric 2 x 16 LD Update rate: <200 ms ontrast: User selected Alarm annunciators: green batch LED (left), red option LED (right) Totalizers: 8digit resettable with security option 8digit nonresettable Electrical Power: 12 to 24 VD or 12 to 24 VA, unregulated, 5060 Hz, 10 W max. ontacts (2 sets): Mechanical SPDT contacts Maximum voltage rating: 5 30 VD, VA, or VA, (power factor = 1.0) urrent : 4 to 20 ma, nonisolated, internally powered Update rate: <200 ms Max loop impedance: 350 Ω max with a 12 V instrument supply voltage, 950 Ω max with a 24 V instrument supply voltage Accuracy: ±0.1% of max range Totalizer (NT)/End of batch (EOB) pulse s: Opencollector transistor, optically isolated, 5 ma max. sink, 28 VD max. pullup voltage, 130 ms (NT) pulse width End of batch pulse 500 ms (fixed) Environmental Operating temp.: 10 to 55 (14 to 131 F), 50 (122 F) max. with optional rear cover Storage temp.: 15 to 80 (5 to 176 F) Relative humidity: 0 to 95%, noncondensing Altitude: 4000 m max. Pollution degree: 2 GND Noise immunity: Noise emissions: Safety: Internal EOB/NT ircuit 100 Ω EN EN55011 EN610101

9 Dimensions: 96 mm (3.8 in.) Panel Gasket al Splashproof Rear over (sec. 11) % mm (3.8 in.) Mounting Panel Mounting lamp (2 ea.) mm (3.8 in.) 88 mm (3.5 in.) 91 mm (3.6 in.) SIDE VIEW Front View GF SIGNET 76 mm (3 in.) 96 mm (3.8 in.) 88 mm (3.5 in.) 88 mm (3.5 in.) Freq. IN Std. Sensor Freq. IN GF SIGNET Model #3 Sen. Pwr. Iso. Gnd Open ollector Sensor 1224 V 10 W Gnd NT/EOB Rsm RTN Remote N urrent N Patent No. D 376, mm (3.5 in.) 92 x 92 mm (3.62 x 3.62 in.) Rear View Panel cutout 13. Quick Reference Menu Parameters 13.1 VIEW Menu Setup Parameters (sec. 10.1) Menu Parameters Display Description Range Factory Default A Gallons <> to Press to start, stop, or resume batch See programmed batch volume B Gallons Volume: Gallons> Programmed batch volume Gallons. Gallons X 1 Total: > Resettable totalizer D. Gallons X 1 Total: Permanent totalizer E. Overrun: Manual Gallons Overrun mode Overrun volume Manual or Auto

10 13.2 ALIBRATE Menu Setup Parameters (sec. 10.2) Menu Parameters Display Description Range Factory Default A. Units: Gallons > units Aa Zz, 0 9, /, _ (8digits max.) _Gallons _ = blank display digit option Flow Timebase: m > Flow timebase Ss, Mm, Hh, Dd m (m= minutes). Auto alibrate: KFactor > al volumetric calibration n/a n/a D. KFactor: > KFactor E. Total Units: Gallons x 1 > Total units Az Zz, 0 9, /, _ (15digits max.) Gallons X 1 _ = blank display digit option F. Total KFactor: > Total KFactor G. Last AL: Last alibration date to OPTIONS Menu Setup Parameters (sec. 10.4) Menu Parameters Display Description Range Factory Default A. ontrast: 3 > Display contrast 0 to 5 3 Display Decimal: *****. * > Flow decimal **.*** to *****. ****.*. Total Decimal: *******. * > Total decimal ******.** to ********. *******.* D. Lock: OFF > VIEW menu total/batch volume reset access code On or Off Off E. Operating Mode: Advanced > Simple or Advanced n/a Advanced F. Pulse Output: Totalizer > Pulse operation mode End of or Totalizer Totalizer G. Overrun omp: Manual > Overrun compensation mode Manual or Auto Manual Overrun Volume: Gallons> Overrun volume Gallons H. > contact mode Missing signal, Two stage, Overrun alarm, End of, Off Missing signal Two Stage Setpoint%: 95.0> contact, two stage mode 0.00 % 100. % 95.0% Overrun Alarm: Gallons> contact, overrun alarm mode Gallons Alarm: On > Missing signal alarm On or Off On I. Delay: 30.0 sec > Missing signal alarm delay seconds 0.10 seconds J. urrent Output: ompletion> urrent mode ompletion, Valve control, or End of ompletion K. ount Direction: Down > count direction ount up or down ount up

11 14. Maintenance lean the instrument case and front panel with a soft cloth and mild liquid soap solution. 15. Troubleshooting Display Problem Solution Gallons/m Display timebase too large hange flow timebase (S=Seconds, M=Minutes, H=Hours, D=Days) in <> to START ALIBRATE menu to a smaller value (e.g. GPD to GPM) Time Left min Remaining batch time greater than Display will show actual remaining minutes after the remaining batch time <> to 999 minutes (overrange) is less than 999 minutes Gallons Flow rate detected after batch end Repair leaky or stuck flow shuttoff valve. <> to Flow KFactor Flow (batch) display KFactor dan not Enter KFactor greater than zero (sec. 10.2D) can not be zero be zero Total KFactor Totalizer KFactor can not be Enter KFactor greater than zero (sec. 9.2E) can not be zero zero Must be between Missing signal time delay must be set Enter missing signal time delay within seconds (sec. 10.4I) for seconds Overrun Volume Overrun alarm volumetric setting Enter overrun alarm volumetric setpoint within ) can not be zero must be within engineering units (sec. 10.4H engineering units Power Failure Instrument power interrupted during Use RIGHT arrow key to select "Resume" or "lear". Selecting resume will Resume lear active batch process continue the batch from the point where the power interruption occurred. Selecting clear will clear the power failure. After your selection has been made, to continue. SETUP READ ERROR Power fault occurred while saving Press any key to reload factory defaults then reprogram flow system setup Press any Key setup menu entry parameters. Note: Totalizer displays remain undistrubed and will resume after instrument reset. Notes:

12 Provided by: KTH Sales, Inc. ph: Louisiana Place Merrillville, Indiana USA Signet Scientific ompany, 3401 Aerojet Avenue, El Monte, A U.S.A., PRINTED ON REYLED PAPER /(B1/98), English Signet Scientific ompany 1996 Printed in U.S.A.