Installation and operation manual
KSGD02 Revision: 1.4
Page 14 of 16
R
KSGD-01WS-B
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Once the
Pre-alarm level 2
state is reached, the operation of the detector is proven and unless
confirmation of the relay operation is required there is no necessity to continue through the
remaining steps skip to step 5.
If the detector remains in the
Pre-alarm level 2
state continuously for 30 minutes the
detector will enter the
Low Alarm Level
condition.
Operating State
Dual Relay version
Connection
terminal states
Single Relay version
Connection
terminal states
LED
Buzzer
Gv
Voltage
Low Level Alarm;
Reading> ~1000ppm
For > 30 minutes
3 & 4
5 & 6
3 & 4
4 & 5
Flashing
RED
>
AMBER
(2Hz)
Pulses
2Hz
>3.5VDC
OPEN
CLOSED
OPEN
CLOSED
4.
If test gas application is continued the detector will eventually enter the High Level Alarm
state.
5.
Turn off the gas regulator valve and allow clean air to circulate over the sensor and the gas
to dissipate. After removing the gas the sensor should recover and return to
Normal
Operation.
It may be necessary to ventilate the room with fresh air for the sensor to recover. The time
for the detector to recover will depend upon the concentration of gas detected by the
sensor and the time period but is typically less than 5 minutes. It is recommended that the
sensor is not subjected to test gas for a prolonged period (>3 minutes) as recovery may
become significantly longer.
Please ensure the regulator is switched off after use and the bottle is stored in a ventilated
space.
See section 3.1 for supplementary information of Gv voltages at different operational states.
The detectors relays are normally energized, so the operation can also be tested by isolating
power to the detector.
5. Fault finding
Problem
Action
LED Not illuminated
Check power supply
LED Flashing
RED
>
AMBER
with interval buzzer Sensor
fault
Check sensor if fitted and seated correctly in sensor socket
LED Flashing
RED
Refrigerant leak
Ventilate room and detector should automatically reset
LED Flashing
RED
>
AMBER
with buzzer puling (2Hz)
Potential contaminant, Ventilate room, detector will
automatically reset.
LED Flashing
RED
>
AMBER
with buzzer puling (4Hz)
High level contaminant, Ventilate room.
Verify operation of detector.
DO NOT swap the sensor between KSGD units. Each sensor is matched to the PCB and
swapping sensors will directly affect the performance of the product.
Operating State
Dual Relay version
Connection
terminal states
Single Relay version
Connection
terminal states
LED
Buzzer
Gv
Voltage
High Level Alarm
Reading> ~4000ppm
For > 30 seconds
3 & 4
5 & 6
3 & 4
4 & 5
Flashing
RED
>
AMBER
(4Hz)
Pulses
4Hz
>4.2VDC
OPEN
CLOSED
OPEN
CLOSED
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