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Installation, Operation & Maintenance Manual
Technical Specification
General
Model:
Target Gases:
Size: (H x W x D)
Housing Material:
Mounting:
Weight:
User Interface
Display:
Screen Brightness:
Visual Indicators:
Audible Alarm:
Buttons:
Language:
Power Supply
Power Consumption:
DC Power:
Internal Fuse:
Equipment
Overvoltage Category:
Pollution Degree:
I/O
Relay:
Environmental
Ingress Protection:
Operating:
Storage:
Altitude Rating:
Wiring
Typical
Approvals
Electromagnetic Compatibility and
Electrical Safety
Other
Communication
Sensor Specification
Gas
Indicating
Sensor
Range
Electrochemical Sensors
Carbon
Monoxide
0-999ppm
(CO)
Oxygen
0-30% V/V
(O
)
2
Semiconductor Sensors
Methane
0-20% LEL
(CH
)
4
Propane
0-20% LEL
(LPG)
Hydrogen
0-20% LEL
(H)
IOM Iss: 4 11-21
Merlin Gas Detector TFT
CO/LPG/NG/O2/H
5.51 x 3.74 x 1.18" (140 x 95 x 30mm)
ABS Polylac - PA765
Safe Zone - Indoor use - Wall Mounted
Max. 1.77oz (0.05kg)
1.8" TFT
Non-Adjustable
TFT visual. Green: Normal; Yellow: Pre-Alarm; Red: Alarm
>70dB @ 3.28ft (1m). Quiet conditions.
None
English
90mA Max @ 24vdc
12-32 VDC - Nominal 24 VDC
None
III
3
Volt Free (Normally Closed / Common / Normally Open)
1x 30vdc 2A (Non-Latching)
Not Formally Evaluated
-10 ~ 50°C / 14 ~ 122°F 30 ~ 80% RH (non-condensing)
-25 ~ 50°C / -13~122F° up to 95% RH (non-condensing)
2000m
#15AWG Power Pair; #18AWG Data Pair-Tinned copper.
BS/IEC/EN 61010-1
EMC EN 50270
RS485 MODBUS RTU
Calibration
Response
Steps
Gas
(t90)
1
120ppm CO
<60s
Clean Air
0.1
<30s
(20.9%)
0.5% BV
0.1
<30s
methane
0.2% BV
0.1
<30s
Propane
4000ppm
0.1
<30s
Hydrogen
▲ Rising Alarm ▼Falling alarm *EOL – Expected Operational Life
Recovery
Alarm: 1
(t10)
(Pre alarm warning)
<60s
▲20ppm
<60s
▼19.5% V/V
<30s
▲8% LEL
<30s
▲8% LEL
<30s
▲8% LEL
Merlin Detector-TFT
Alarm: 2
Exposure time.
▲20ppm (after two hours)
▲50ppm (after one hour)
▲100ppm (after ten minutes)
▲300ppm (after one minute)
▼18.5% V/V
▲23% V/V
▲10% LEL
▲10% LEL
▲10% LEL
*EOL
(Years)
5
3
10
10
10
15
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