Installation & Operation Manual Merlin Gas Detector TFT
AGSDETTFT-IOM Iss: 5 06-20
9
Trouble Shooting
Fault.
Possible Cause/Correction.
Detector not responding.
o
Incorrect wiring.
o
ID switches not properly configured.
o
Termination switches not set up correctly.
Fault message on screen
o
Gas sensor element knocked or damaged.
Service message on screen
o
Detector requires service – contact supplier.
End of Life message on screen
o
Detector requires replacement – contact supplier,
Specification
Product:
Gas Detector TFT (X)
Model: CO / NG / LPG / H / O2
Visual Indicators
Green, Yellow & Red Visual Reading Indication
Gas Level / Measuring Value / Detector ID No / Detector Serial No
End of Life / Sensor Fault / Service
Display
1.8” TFT – Thin Film Transistor
Screen Brightness
Non- adjustable
Initial Stabilisation Time
60 Seconds approx.
Power Input Voltage
12-24V / 7-30VDC
Relay Output
0.5A Switching Current (resistive load).
Consumption
90mA Max (24V)
Accuracy @ 25°C / 77°F
± 5%
Fuses
N/A
Operating Temp
32 – 122°F 30-85%RH Non-Condensing
Test Conditions
77° ± 41°F
Audible Alarm Buzzer (dB)
65 dB (300mm distance in quiet conditions)
Gas Sensor Type
NG: Semi-conductor
Measuring Range
NG: 300-10,000 PPM
LPG: Semi-conductor
LPG: 300-10,000 PPM
H: Semi-conductor
H: 100-10,000 PPM
CO: Electro-Chemical
CO: 10-10,000 PPM
O2: Electro-Chemical
O2: 0-30%
Gas Level Pre- Alarm
NG: 8% LEL
Gas Level Alarm
NG: 10% LEL
LPG: 8% LEL
LPG: 10% LEL
H: 8% LEL
H: 10% LEL
CO: 20 PPM
CO: 20 PPM @ 2 HOURS
O2: 18.5 – 19.5%
50 PPM @ 1 HOUR
100 PPM @ 10 MINS
Expected Sensor Life
NG: 10 Years
300 PPM @ 1 MINS
LPG: 10 Years
O2: < 18.5% / >23%
H: 10 Years
CO: 5 Years
O2: 3 Years
Dimensions
(H x W x D)
5.51 x 3.74 x 1.18”
