GDS XDI-XDIwin-15/30J Quick Manual
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T E C H N O L O G I E SXDI-XDIwin – 15/30JFLAMMABLE SENSORTechnical Sheet ref C893Sv.14198D1CPower Supply15 to 30Vdc 24v nominalOutputs3 wire 4~20mA / 4 wire CANbusRelays Low alarm SPCOHigh alarm SPCO 0-5A @ 30VdcFault alarm SPCOInhibit option during servicingLogging Intervals - variable timeRoll over/stopStorage - 2,880 readingsRequires RS232 lead – see 8PC or laptop (dedicated)Hyperterminal (download from GDS website)Set up procedure:New sensors are supplied ready to connect to the system.The following procedure is for full set up and where the sensor cell hasbeen replaced - only sections 5, 6, 7, 9 and 11 need to be carried out.Voltage measurements are made wrt AG unless otherwise specified.1. Insert jumpers J20 and J6 position SO for 4-20mA source output.2. Turn sensor voltage potentiometer anti-clockwise (minimumvoltage).3. Connect sensor to J2 terminal W-white Y-yellow P-pink.4. Connect 24V + and 0V to JP10, short the 4~20mA terminal byinserting test link at J9.5. Measure the sensor voltage at SV and adjust by turning sensorvolts pot for the correct reading.(standard sensor CAT300 = 2Vdc.) DO NOT EXCEED THEREQUIRED VOLTAGE OTHERWISE PERMANENT DAMAGEWILL OCCUR. See sensor cell supply table.6. Rotate 20mA pot fully anti-clockwise (minimum span.)7. When in clean air the sensor bridge is zeroed by adjusting zeropot until the dual colour LED D1 is off.8. Connect PC hyper terminal using Connect RS232 micro USB orfor earlier models Combi adapter (part no. 160-510) and lead(part no. 160-515) at 4800 baud connected to J3. Ensure jumperJ29 is fitted before programming and initialise the sensor using (C)calibration mode, then shift + ($) command from the keyboard.9. Using a digital mV meter measure across test pins TP8/9 andadjust 4mA pot for 4mA (zero) = 4mV10. Then press (Z) on the PC to zero the reading.11. Apply a known test gas to the sensor (56% LEL = 2.5% volmethane) for 1 minute at a flow rate of 1 litre to give a 13mA =13mV across test pins TP8/9, adjust 20mA pot for correct mVreading.12. When using a PC press (S) to enter span mode and using (H) or (L)adjust the reading to 56% LEL.13. Press (space) to exit span and then (X) to exit the calibration mode.An example of continuous data output to the PC from a Flammablesensor is shown below and is the format for all gas types.O, H and L represent the Over Range High and Low alarmsrespectively.D indicates if a duplicate address isdetectedF indicates a fault presentI shows that this sensor has its alarmsinhibitedunder the O H L the ^ ^ v represent the direction of the alarms. Lis falling and H and O are rising. A(*) under the letter(s) OHLDFIrepresents a detected state so in this example the sensor would be inhigh alarm and a fault present.‘Gas val 35.6’ represents the value of the gas present at the sensorhead. Pressing (R) on the PC causes a reset to occur. Gas type withaddress and serial number are then output to the PC together withalarms and calibration date.A full command list via PC is available by pressing the letter (P) whichwill relist on the PC.14. Connect the sensor to a Combi alarm panel and ensure that itreports in correctly.Note:- Fit the end of line (EOL) link J1 if the sensor is to be installedat the end of the sensor cable.15. If front panel display board is fitted via connector J5 and U12adjust contrast for LCD contrast.16. Remove J9 test link for normal operation.17. Insert link J12 to enable the bridge fault detection.(4-20mA output falls to 2mA in fault).18. Ensure J29 address link is removed (this is only used whenchanging address from a Panel).Flam %LELO H L D F I^^v-*--*-Gas val = 35.6Command UseA = Set CAN address Sets the CAN addressG = Select gas type Select the gas type from a listZ = Zero Press when no gas on sensor to give zeroS = Span Use when calibration gas applied,H and L change readingD = Enter calibration date Enter the calibration dateY = Toggle auto zero Auto zero is ON or OFF, small drift is clearedH = Set high alarm Sets the high alarm thresholdL = Set low alarm Sets the low alarm thresholdO = Set over range alarm Sets the over range alarm thresholdP = List command List these commands on screenX = Exit calibration mode Exit this PC mode$ = Initialise this sensor Use on new PCB to set gas type to FlamU = Alarm direction Sets rising or falling alarmsR = Range Allows a change in maximum valueN = Decimal points Toggles between 1 and 2 decimal placesE = Edit user gas text Choose gas descriptionB = Toggle deadband Deadband of 2.5% can be on or offF = Toggle fault Input External fault input contact can be disabled# = Normally energised Low /high alarm relays and fault relay can bemade normally energisedV= View gas log From current log, display how many historicalreadings to display, up to 2880% = Clear gas log Set all 2880 log readings to 0.00I = Log interval log Choose how many seconds between eachreading and whether the log will roll over orstop at 2880 (60 second interval and 2880readings = 48 hours)www.gds–technologies.co.uk |
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