Danfoss gas detection units

Transcription

1 Data sheet Danfoss gas detection units Types GD Premium, Premium+, Premium Duplex, Premium Remote, Premium Flex and Premium Uptime The Premium line gas detection units are used for monitoring and warning of hazardous gas concentrations. They can be used for detecting most commonly used refrigerants. Depending on the application and model, each unit is available with one or two of 4 sensor types. The Premium line gas detection units are intended as Stand-alone, or connected to a central system like Gas Detection Controller Unit, or a PLC. As stand-alone the on-board relays can be used for activation of alarm devices, while the Analog or RS485 Modbus connection to a central system allows additional centralized monitoring and alarm activation. 4 out of the 6 Premium models have integrated Display/keypad for direct access to the user interface The gas detection units come with a factory default, -step alarm set-up ready for use. The user interface enables the user to configure two individual alarm settings. Alarm, a pre-alarm indicating the gas level has passed a predefined treshold, and - if the gas level passes predefined treshold - the final alarm. Features Digital, factory configured and pre-calibrated gas detectors for plug-and-play installation (no adjustment required) Easy configuration via Display/keypad (some models) and intuitive user-interface; helps simplify operator handling and minimize risk of operational, settings and calibration errors Stand-alone (integrated relays) and/or flexible connection to central controller - by either Analog or RS485 open Modbus communications Wide selection of refrigerants, sensor types and detection ranges versions available Remote sensor location possible Fieldbus wiring - connect and power up to 96 sensors, wire length max. 900 meters (95 ft) per segment; expansion modules permits additional segments Automatic self-diagnostics to ensure correct communication and operation seal cap to prevent premature exposure during installation Digital user interface ensures higher sensor accuracy Reduced risk of false alarms due to temperature compensated sensors Password protected alarm settings allowing authorized access only LED status signals and alarms Buzzer & Light option for local audio and visual alarms (Premium+, Premium Uptime) On-board acknowledge button to reset alarms and to verify that no gas leaks are present Service alerts on unit, controller or both, readable via service tool Display Quick and precise calibration procedures - either by Plug & Play replacement sensors or calibration with gas. No potentiometers or multi-meters required For improved safety and to optimize the lifetime of the sensor, degenerated sensors with too low sensitivity (<0%) are rejected during calibration process. Conformity to EN 507, EN 600-, ANSI/UL 600, CAN/CSA-C. No Enables regulatory compliance with EN 78:06, ISO 549:04, IIAR -07, and ASHRAE 5:06 Danfoss DCS (MWA) DKRCI.PD.S00.D.0 50H664

2 Contents Page Features... Working principle/operation.... Service & maintenance Specifications...4 Electrical connection...5 Function...5 Fieldbus loop...6 General info...7 Gas types and thresholds...7 Alarm scheme Ordering...9 Danfoss DCS (MWA) DKRCI.PD.S00.D.0 50H664

3 Working principle/operation One (or two) sensor(s) are connected to the Premium sensor board via local bus. The board provides the power supply of the sensor(s) and prepares the measured data for digital communication. The operation menu of the Premium software is accessed through the Display (if fitted), or the connected Gas Detection Controller, or via the dedicated GD Service tool (or PC tool). The Service tool (or PC tool) is plugged directly to the board of the unit. These interfaces with Display allow the unit configuration, setting of the unit alarm levels and calibration of the attached sensor(s). The service tool (or PC tool) can be used on all units across the Basic, Premium and Heavy Duty platforms. For Stand-alone units the alarm signals are handled by the unit software, which activates the integrated relays directly. For central controlled units the alarm signals are handled by the Gas Detection Controller (or a PLC) via the 4-0 ma (-0V) analog output or the RS485 open Modbus communication. For additional operational safety the changing of parameters is password protected allowing authorized access only. The factory default password can easily be customized. Service & maintenance The Premium line gas detection units are calibrated either by replacing of sensor heads or by calibration with gas. Plug & Play replacement sensors are precalibrated and factory certified for quick and easy calibration procedure. The sensor is connected to the local bus via a plug connection enabling easy and simple exchange of sensor instead of a calibration. The internal X-change routine recognizes the exchanged sensor during the exchange process and restarts the measurement mode automatically. An LED indicates the correct procedure of the exchange operation. To ensure the proper functioning of the units and to prevent human errors, the sensor head can only be replaced by the same type and ppm range (exact replacement) that match the configuration. If a different sensor head is installed, the GD unit will show a communication error. As an alternative, calibration with gas can be performed via the service tool (or PC tool), calibration gas with correct concentration and the Danfoss calibration adapter. The Danfoss gas detection units have an integrated, digital calibration interface and procedure, which makes the calibration process easy, accurate, and time-saving. No potentiometers or multi-meters required for the calibration. The calibration procedure requires significantly less calibration gas per calibration compared to traditional routines. Danfoss DCS (MWA) DKRCI.PD.S00.D.0 50H664

4 Specifications Electrical Power supply Power consumption (4 V DC) - per sensor (SC) - horn / warning light Alarm relays () Transistor output () (connector X) Analog output signal () Output for local bus Ambient conditions Temperature range Humidity range Storage temperature Storage time Serial interface Local bus Fieldbus Tool bus 4 V DC ± 0 %, reverse-polarity protected Max. 60 ma (.5 VA) Max. 85 ma (. VA) Max. 40 ma (.0 VA) 50 V AC, 5 A, potential-free, contacts (SPDT) 4 V DC / 0. A (switching to plus) (only at 4 V DC power supply) Proportional, overload and short-circuit proof, load 500 Ohm 4-0 ma = measuring range.0 < 4 ma = underrange > 0 -. ma = overrange.0 ma = fault 5 V DC, 50 ma max. Overload, short-circuit and reverse-polarity protected dependant. See ordering section % RH not-condensing +5 C to +0 C (+4 F to +86 F) months -wire / 900 Baud RS 485 / 900 Baud -wire / 900 Baud Physical Housing Type C Type E (Premium Uptime) Material Polycarbonate Combustion UL 94 V Housing colour Black Dimensions (W x H x D in mm) 0 x 0 x 75 0 x 0 x 99 Weight (kg) Approx. 0.6 kg Approx. 0.7 kg Protection class IP 65 Installation Wall mounting Cable entry Standard 6 x M0/5 Wire connection: Local bus (SC) -pin connector Digital input, analog output Power supply, relays Screw-type terminal min. 0.5 mm, max.. mm Screw-type terminal min. 0.5 mm, max..5 mm Cable lengths local bus for Remote Board Max. 5 m (6.4 ft.) Directives EMC directives 04/0/EU Low voltage directive 04/5/EU CE Conformity to EN 507, EN 600-, ANSI/UL 600, CAN/CSA-C. No Enables regulatory compliance with EN 78:06, ISO 549:04, IIAR -07, and ASHRAE 5:06 Display (not Premium and Premium+) Temperature range LCD Operation Power consumption -0 C to +50 C Two lines, 6 characters each, background highlighted in two colours Menu driven via six push-buttons 5 V, 60 ma, 0. VA Status LED Colour / Mode Red / yellow / green (alarm fault operation - service) Protection class IP 65 Warning buzzer Acoustic pressure > 85 db (A) (0. m distance) Frequency 00 Hz Protection class IP 65 UPS (only Premium Uptime) Power unit with wide range input Output rating Rechargeable battery Operating time V AC - 50/60 Hz 5 VA V, 0.8 Ah > 60 min Danfoss DCS (MWA) DKRCI.PD.S00.D.0 50H664 4

5 Electrical connection Relays and de-energized (default) in operating mode at No alarm. Configurable Relay energized (default) in operating mode at No alarm. Configurable Power 4 V DC Relay Alarm Relay Alarm Relay Error X X X X4 4 V DC GND NC Relays shown de-energized Status LED Green/Yellow/Red X Ackn./Test button Relay status LED Green X open: 4-0mA closed: -0 V V Service Service Tool Bus Tool Power communication Bus Comm. JP* Local Bus_ 4 Relay status LED Green Local Bus_ X Relay status LED Green Digital Output NC GND Horn Flash light Danfoss 48H0_0-08 DI_ DI_ GND Digital input Input Buzzer & -light alarm Bus_A Bus_B AO_0 GND Field Analog Bus output Output Ackn. button Button Status LED: GREEN is power on. - flashing if maintenance needed YELLOW is an indicator of Error. - when the sensor head is disconnected or not the expected type - AO is activated but nothing connected RED on alarm, similar to the Buzzer & light alarm. Ackn. -/Test button: TEST - The button must be pressed for 0 sec. - Alarm and Alarm is simulated, stop on release ACKN. - Pressed while Alarm, the audible warning switches off and goes back on after 5 min. when the alarm situation is still active. * JP open AO 4-0 ma JP closed AO -0 Volt Function Digital outputs with relays Action Reaction Reaction Reaction Reaction Reaction Reaction Relay Relay Flashlight Horn Relay LED (Alarm) (Alarm) X-7 X-6 (Fault) Gas signal < alarm OFF OFF OFF OFF ON GREEN threshold Gas signal > alarm threshold ON OFF OFF OFF ON RED Slow blinking Gas signal > alarm threshold ON ON ON ON ON RED Fast blinking Gas signal alarm threshold, but ackn. button pressed ON ON ON OFF after delay ON RED Fast blinking Gas signal < (alarm threshold - hysteresis) but >= alarm threshold Gas signal < (alarm threshold - hysteresis) but not acknowledged ON OFF OFF OFF ON RED Slow blinking OFF OFF OFF OFF ON RED Very fast blinking No alarm, no fault OFF OFF OFF OFF ON GREEN No fault, but maintenance due OFF OFF OFF OFF ON GREEN Slow blinking Communication error OFF OFF OFF OFF OFF YELLOW Danfoss DCS (MWA) DKRCI.PD.S00.D.0 50H664 5

6 Fieldbus loop Each GD controller can handle up to 96 sensors and handle any mix of individual Gas detection units of the types Basic, Premium and Heavy Duty. The max. recommended loop wire length is 900 meter (95 ft) per segment. With additional segments (and additional controller expansion modules) the max recommended loop wire length is 700 meter 6 ft). The controller and the last GDU in each segment must be provided with a resistor of 560 Ohm. A Umin of 6 V DC must be secured at any spot in the loop. Below figure shows how to make proper connections between the controller and each GDU. Controller Unit unit 560 R GDU Addr. 05 GDU Addr Danfoss 48H9_ V DC 4 V DC BUS_B BUS_A 0 V DC 4 V DC 4 4 GDU Addr. 0 GDU Addr. 0 GDU Addr. 0 4 U min = 6 V DC R Wire Wire length length max. max meter meter (95 (95 ft) per ft) per segment. segment. More segments segments with with additional additional expansion expansion modules modules max. max. 700 meter 700 meter (6 (6 ft). ft). Additional power limitations must must be calculated. be calculated. R RIGHT Controller unit R = Terminating resistor Ohm Ohm = GDU (Basic, Premium and/or and/or Heavy Heavy Duty) Duty) R R Controller unit WRONG Danfoss 48H_0-08 Danfoss DCS (MWA) DKRCI.PD.S00.D.0 50H664 6

7 General info Cable gland not mounted but enclosed 4 mounting ears included head mounted bottom right (not Premium Remote) Alarm device (buzzer & light alarm) mounted bottom left (only Premium +, Premium Uptime) Danfoss 48H4_0-08 Premium Premium + Buzzer & light 5 m (6.4 ft) Premium Duplex Premium Remote Premium Flex Premium Uptime Buzzer & light Gas types and thresholds Type ppm range Alarm Alarm Hysteresis Ammonia EC 00 Electrochemical ppm 5 ppm ppm Ammonia EC 00 Electrochemical ppm 50 ppm ppm Ammonia EC 000 Electrochemical ppm 900 ppm 5 ppm Ammonia EC 5000 Electrochemical ppm 4500 ppm 50 ppm Ammonia SC 000 Semiconductor ppm 900 ppm 5 ppm Ammonia SC 0000 Semiconductor ppm 9000 ppm 50 ppm Ammonia P LEL Pellistor % (0000 ppm) % (0000 ppm) CO IR 0000 Infrared ppm 9000 ppm 50 ppm CO IR Infrared ppm 8000 ppm 500 ppm HCFC R SC 000 Semiconductor ppm 900 ppm 5 ppm HFC R404A, R507 SC 000 Semiconductor ppm 900 ppm 5 ppm HFC R4A SC 000 Semiconductor ppm 900 ppm 5 ppm HC R90/Propane SC 5000 Semiconductor ppm 500 ppm 40 ppm Hysteresis = 5% of Alarm (rounded up to the next higher integer) Alarm thresholds can have the same value, therefore the relays and/or the buzzer and LED can be triggered together. Danfoss DCS (MWA) DKRCI.PD.S00.D.0 50H664 7 %

8 Alarm scheme WAO Housing Buzzer & -light alarm -light alarm Buzzer & light Blinking ( sec.) Fast blinking ( sec.) Very fast blinking (0. sec.) Buzzer on Static, Power LED Danfoss 48H58_0-08 Alarm Alarm If ackn. button pressed after Alarm Ackn. Buzzer LED If If ackn. button pressed during Alarm If ackn. button not pressed Ackn. Buzzer LED Ackn. Buzzer LED Time Time delay* Alarm Alarm * Time delay set in in config. Gas Alarm Alarm Danfoss DCS (MWA) DKRCI.PD.S00.D.0 50H664 8

9 Ordering Premium = Standard Premium + = Standard + Buzzer & light warning device Premium Duplex = Standard + nd sensor + Display and keyboard Premium Remote = Remote sensor (stainless steel) with 5m cable ( nd cable gland needed) not mounted but enclosed + Display and keyboard Premium Flex = Standard + Display and keyboard Premium Uptime = Standard + Buzzer & light warning device + Display and keyboard + UPS Type Model Refrigerant ppm range Alarm ppm nd ppm (Alarm ppm) Remote sensor ppm (Alarm ppm) Buzzer & Light Display UPS Temp. Range C Temp. Range F Code number GDA GDC GDHC GDHF GDH Premium Ammonia Electrochemical /5-0 to to 48H600 Premium+ Ammonia Electrochemical /5 x -0 to to 48H600 Premium Duplex Ammonia Electrochemical Pellistor / (0000) Premium Remote Ammonia Electrochemical 0-00 (5/5) x -0 to to 48H6004 x -0 to to 48H6005 Premium Flex Ammonia Electrochemical /5 x -0 to to 48H6006 Premium Uptime Ammonia Electrochemical /5 x x x 0 to +40 to 04 48H6007 Premium Ammonia Electrochemical /50-0 to to 48H600 Premium+ Ammonia Electrochemical /50 x -0 to to 48H60 Premium Duplex Ammonia Electrochemical Pellistor / (0000) x -0 to to 48H60 Premium Flex Ammonia Electrochemical /50 x -0 to to 48H60 Premium Ammonia Electrochemical /900-0 to to 48H606 Premium+ Ammonia Electrochemical /900 x -0 to to 48H607 Premium Duplex Ammonia Electrochemical Pellistor / (0000) Premium Remote Ammonia Electrochemical (500/900) x -0 to to 48H608 x -0 to to 48H609 Premium Flex Ammonia Electrochemical /900 x -0 to to 48H600 Premium Uptime Ammonia Electrochemical /900 x x x 0 to +40 to 04 48H60 Premium Ammonia Semiconductor /900-0 to to 48H605 Premium+ Ammonia Semiconductor /900 x -0 to to 48H606 Premium Flex Ammonia Semiconductor /900 x -0 to to 48H607 Premium+ Ammonia Electrochemical /4500 x -0 to to 48H608 Premium Remote Ammonia Electrochemical (000/4500) x -0 to to 48H609 Premium Uptime Ammonia Electrochemical /4500 x x x 0 to +40 to 04 48H600 Premium Ammonia Semiconductor / to to 48H60 Premium+ Ammonia Semiconductor /9000 x -0 to to 48H60 Premium Remote Ammonia Semiconductor (5000/9000) x -0 to to 48H604 Premium+ Ammonia Pellistor x -5 to to 48H606 Premium Duplex Ammonia Semiconductor Pellistor / (0000) x -0 to to 48H607 Premium Flex Ammonia Pellistor x -0 to to 48H608 Premium Flex CO₂ Infrared /9000 x -0 to to 48H6040 Premium Flex CO₂ Infrared /8000 x -0 to to 48H604 Premium R Semiconductor /900-0 to to 48H604 Premium+ R Semiconductor /900 x x -0 to to 48H604 Premium Flex R Semiconductor /900 x -0 to to 48H6044 Premium Premium+ Premium Flex R404A, R507 R404A, R507 R404A, R507 Semiconductor /900-0 to to 48H6047 Semiconductor /900 x -0 to to 48H6048 Semiconductor /900 x -0 to to 48H6049 Premium R4a Semiconductor /900-0 to to 48H6050 Premium+ R4a Semiconductor /900 x -0 to to 48H605 Premium Flex R4a Semiconductor /900 x -0 to to 48H605 Premium R90/ Propane Premium+ R90/ Propane Premium Flex R90/ Propane Pellistor /500-0 to to 48H605 Pellistor /500 x -0 to to 48H6054 Pellistor /500 x -0 to to 48H6055 Danfoss DCS (MWA) DKRCI.PD.S00.D.0 50H664 9

10 Spare parts and accessories Description Code number Replacement sensor - Ammonia EC 00 Replacement sensor - Ammonia EC 00 Replacement sensor - Ammonia EC 000 Replacement sensor - Ammonia SC 000 Replacement sensor - Ammonia EC 5000 Replacement sensor - Ammonia SC 0000 Replacement sensor - Ammonia P LEL Replacement sensor - CO IR 0000 Replacement sensor - CO IR Replacement sensor - HCFC R SC 000 Replacement sensor - HFC R404A, R507 SC 000 Replacement sensor - HFC R4a SC 000 Replacement sensor - HC R90/Propane P 5000 Remote sensor - Ammonia EC 00 Remote sensor - Ammonia EC 000 Remote sensor - Ammonia EC 5000 Remote sensor - Ammonia SC 0000 Controller solution (controller + enclosure) Controller expansion module Warning module (wire break monitoring module) Service tool Buzzer & light - acoustic buzzer and optic led Splash guard Seal cap Modbus for controller incl. gateway Controller unit PC Tool Calibration adapter NPT adapter Controller solution Uptime Calibration adapter for Remote sensors 48H600 48H60 48H60 48H60 48H604 48H605 48H606 48H607 48H608 48H609 48H60 48H6 48H6 48H6 48H64 48H65 48H66 48H6 48H6 48H6 48H64 48H65 48H66 48H67 48H68 48H6 48H65 48H6 48H64 48H67 48H6 Danfoss DCS (MWA) DKRCI.PD.S00.D.0 50H664 0

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