TECHNOLOGIES
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GDS TECHNOLOGIES LTD | FUSION POINT | ASH LANE | GARFORTH | LEEDS | LS25 2GA | UK www.gds-technologies.co.uk
This document is not contractual and the equipment specification may be modified at any time without prior notice.
Technical Sheet
ref C1540 J
Mains Version
230/115v AC 50/60 Hz
DC Version 24v DC ± 15%
Power 4w
Outputs
Alarms 1, 2, 3 relays – S.P.C.O. ND (NE option)
Fault Relay – S.P.C.O. ND (NE option)
normaly latched (unlatched option)
Relay contacts rated 3A/230v AC
CANbus – see Combi alarm system
4~20mA analogue output
Sensor Cell Supply Table
Indicators
Power Green L.E.D
Alarms 1, 2, 3 Red L.E.D’s
Fault Amber L.E.D
Display 2 line alpha–numeric
Audible Alarm
Gas/Fault mutable: 85dB@10cm
Environmental
Operating temperature: 15 to +50°C
Storage temperature: 5 to +55°C
Humidity 5–95% RH non condensing
Protection IP65
Sensor Cable
3 core 1.5mm screened → 1.5km
SPECIFICATION
4–20
OV
Lo
Hi
24V
NO C
AL3
NC NO C
NCNO C
AL2
NCNO C
AL1
NC
W
+
Y
sig
P
–
SENSOR
FAULT
+ –
4–20mA
Output
PC comms via
hyperterminal
Sensor
Voltage
test pins
Zero LED
4mA
J28
20mA
Zero
Gain
J3
J29
J 11
J18 J17 J16
J15
J19
J1
TP3
A B
A
B
A
B
TP11
TP12
TP6TP7
TP13
TP8 TP9
TP2
TP4
TP1
Contrast
J6
J20
J5
J4 J7
J 12
J 13
J14
J8
J9
x fault
Inhibit
Ov
24v
J1 CANbus – EOL – see Combi
J4/7 For Semiconductor sensors
J5/11 Sensor (B–catalytic A–4~20mA)
J6/20 Sink/Source 4~20mA output
J8 Gain – factory set
J9 Normally fitted 4~20mA out
J12 Bridge fault enable fit for catalytic sensor
J13 See J8
J14 Sensor supply selector
A for catalytic sensor
B for 4~20mA sensor
J15 Sounder mute
J16 N/E – A3 relay link on
J17 N/E – A2 relay link on
J18 N/E – A1 relay link on
J19 N/E – fault relay link on
J28 Reset processor
J29 Address change enable – see Combi
C1529
A
B
4~20mA In
Sensor
supply
adjust
4~20mA
Output
CAT300A 2v/300mA
CAT170A 2v/175mA
SEM–1 5v/170mA
SEM–1 4v/170mA Ammonia
GDS PRIME 4v/70mA
F6–170 2v/175mA
CAT335C 2.5v/335mA
THE300A 2v/300mA
SS10 2v/175mA
CAT335A 2.5v/335mA
CAT335B 2.5v/335mA
CAT100A 2v/100mA
3 wire
GDS 101
Sensor
+24
0v
4~20mA
+ s
Y PW
–
2 wire
GDS 101
Sensor
+24
0v
4~20mA
+ s
Y PW
–
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