GDS XDI-15/30J Manual

XDI win –15/30J
( )
FLAMMABLE GAS SENSOR – TRANSMITTER
Catalytic / Semiconductor / PID / IR cells /
Transmitter: PCB 326 | Software version: V2.2.5 ➝ | Single magnet setup
Reference documents
C1 144 Equipment Installation Guidelines
C1770 Wiring & Terminations for Sensors and Panels
G973 Gas Sensor Locations
C1548 Aspirated Sensor
Sensors
The positioning of sensors depends upon the type of gas to
be monitored and its density with respect to air. See G973
Heavy Gases (Propane, Butane) – locate at 15 to 20 cm
from floor level.
Lighter Gases (Methane, Natural Gas, Ammonia,
Hydrogen) – locate at 5 to 10cm from the ceiling.
All equipment should be mounted away from direct heat
and in accordance with its IP rating.
Cell replacement / transmitter calibration
New sensors are supplied ready to connect to the system with all
jumpers inserted. This procedure shows how to recalibrate as part
of a routine maintenance or cell replacement.
1. If bench testing the PCB see section E4.
2. Check the sensor voltage at TP5 (0v) and TP8 (SV) and
adjust RV1 if necessary (see section H Sensor Supply).
DO NOT EXCEED THE REQUIRED VOLTAGE OTHERWISE
PERMANENT DAMAGE WILL OCCUR)
3. Using a digital mV meter measure across test pins TP2/3 and
adjust Zero pot RV2 (coarse adjust) until LED D9 goes green
for 4mA (zero) = 4mV (sensor bridge zero).
4. Apply a known span gas to the sensor (56% LEL = 2.5% vol
methane) for 1 minute at a flow rate of 1 litre to give a 13mA
= 13mV across test pins TP2/3, adjust gain pot RV4 for
correct mV reading.
5. For display and relay set up see sections B or E
Fig. 1 Transmitter
J2
J12
Address
Fault/Inhibit
Amber LED
Sensor Voltage
CONTRAST
Pot SENSOR
VOLTAGE
Zero Pot (4mA)
J15 J13
Sensor Voltage
Test Pins
Insert jumpers J15 + J13
when using Semi-Conductor Cell
win
( )
J9+J10
(Select Sink/Source)
J10 J9
(W) (P) (Y)
J3
TP3
J4 EOL
J1
RELAYS
TP2 Test
Flam
Can Sensor J17
PCB 326
DISPLAY
J7
PROG
J11
J21
J16
ZERO
J5
GAIN
J14
Gas Status LED
SENSOR
CELL
Gain Pot (20mA)
Setting/adjusting using display board
push buttons or single magnet
On power up the unit will be inhibited for a 120 second
warm up period displayed as a countdown on the display
(this may be overridden by pressing 1).
Carry out procedure A. To access the menu press 2
(equipment SN will be displayed) followed by the entry
code 231, pressing 1 or 3 will allow travel through the menu
and adjustment of settings, pressing 2 enables access into
the selected menu field and on completion pressing 2 will
confirm your selection.
Menu
1. Exit
2. Inhibit – relays and 4~20mA signal output to 2mA
3. Address – CANbus sensor address (Combi)
4. Zero/span(fine adjust)
5. Alarm levels set – valve/direction (rising/falling)
6. Exit
A
7. Delay to alarm (relays) 0~255s
8. Relay off delay 0~255s
Default setting 0 seconds
9. Normally energised/de-energised relays
Default setting de-energised
10. LED/relay test
1 1. Exit
12. Set 4 and 20mA output – calibrate
13. Display gas reading decimal point setting
14. Gas type selection
15. Gas range select
16. Exit
17. Dead band setting, OFF, Display only, full signal ±
2.5% of scale reading. Default setting OFF
18. Relay operation select – relay 1, 2, 3
19. Software version / product serial number
Power supply
15 to 30Vdc 24v nominal
Initial power ON – 120s inhibit warm up period
Outputs
4-20mA
Output Pins 3 wire 4~20mA (Direct)/4 wire CANbus (Addressable)
(mV)
output (y)
Logging Intervals – variable time
Roll over/stop
Storage – 2,880 readings
Requires USB A to USB micro B cable
GDS Terminal
(GDS part No. 160-511)
Connection
(Micro USB B)
PC or laptop (dedicated)
GDS Terminal
(download from GDS website)
Options 3 Relays
SPCO 3A (none inductive) @ 30vDC
T E C H N O L O G I E S
Technical Sheet ref C1883Dv1
Doc No. 194D29C
www.gds–technologies.co.uk
B
C