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4. Testing
The operation of the detector can be verified in 2 ways
4.1 Measuring the Gv
When testing the detector the Gv voltage must be checked using a multi-meter at various points
during the test procedure. The Gv voltage is measured on the 6 way test / calibration connector.
The location of this connector varies on older variants of the detector, along with the connection
terminals. The calibration kit includes a test lead for easy connection and measurement of the Gv.
Fig 4.1
Current model detector Gv voltage
4.1 Bump test procedure
The reactivity of the detector can be verified
This is primarily aimed at verifying the operation of the relay & buzzer
used is not verification that the sensor can detect refrigerant at the appropriate concentration.
Normal Operation
1.
Firstly verify
should be between 0.4 VDC and 1 VDC. If the Gv is outside this range the sensor is reacting
to refrigerant or a contaminant. The room should be well ventilated to eliminate any
potential refrigerant or contaminant and the voltage should subside.
Operating State
Dual Relay version
Connection
terminal states
Normal operation
3 & 4
CLOSED
2. Using a small amount of butane or equivalent, spray gas at the sensor for approximately 30
to 40 seconds.
3.
The sensor will enter the
Operating State
Dual Relay version
Connection
terminal states
High Level Alarm
3 & 4
Reading> ~4000ppm
OPEN
For > 30 seconds
4. After removing the gas the sensor should recover and return to
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 cigarette lighter gas for a prolonged period (>3 minutes) as
recovery may become significantly longer.
KSGD-01WS-B
6
1
, using a multi-meter
Single Relay version
Connection
terminal states
5 & 6
3 & 4
4 & 5
OPEN
CLOSED
OPEN
High Level Alarm
state.
Single Relay version
Connection
terminal states
5 & 6
3 & 4
4 & 5
CLOSED
OPEN
CLOSED
depending on the accuracy required;
6
1
Fig 4.2
Older model detector Gv voltage
using propane or butane.
as the propane or butane
measure the Gv voltage. The Gv
LED
Buzzer
Constant
GREEN
OFF
LED
Buzzer
Flashing
Pulses
RED>AMBER
(4Hz)
4Hz
Normal Operation.
Gv
Voltage
0.4>1VDC
Gv
Voltage
>4.2VDC
Installation and operation manual
KSGD02 Revision: 1.4
Page 12 of 16
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