Installation, Operation & Maintenance Manual Merlin Detector i-S
Iss: 1 170322
11
Specification
General
Model:
Detector i-S
Target Gases:
NG / LPG / CO / CO
2
/ O
2
/ H
2
/
Size: (H x W x D)
5.95 x 4.37 x 1.97” (151 x 111 x 50mm)
Housing Material:
ABS PA765. Flame Retardant UL 94V-1
Mounting:
Safe Zone - Indoor use - Wall Mounted
Weight:
212g
User Interface
Display:
1.8” TFT
Screen Brightness:
Non-Adjustable
Visual Indicators:
Gas Level (Green: Normal; Yellow: Pre-Alarm; Red: Alarm) 0-10V Output: Relay Output
Audible Alarm:
>65dB @ 3.28ft (1m). Quiet conditions.
Language:
English
Power Supply
Max. Power Consumption:
CO
2
1.45W
NG/LPG/H
2
1.8W
CO
0.6W
Power Rating:
12-24V AC or DC
Relays
Volt Free BMS relay outputs:
1A switching current (resistive load) @ 24V AC/DC
Environmental
Ingress Protection (IP):
Not Formally Evaluated
Operating:
-10 ~ 50°C / 20 ~ 90% RH (non-condensing)
Storage:
0 ~ 50°C / 30 - 80% RH (no condensation)
Altitude Rating:
2000m
Wiring
Typical
Min. 2.5mm2 / 75°C min / Tinned copper.
Approvals
Electrical Safety and Electromagnetic
Compatibility
BS EN 61010-1:2010 +A1:2019.
BS EN 50270.
Sensor Specification
Gas Sensor
Measuring
Range
Steps
Response
(t90)
Recovery
(t10)
Pre-Alarm:
Alarm:
*EOL
(Years)
Electrochemical Sensors
Carbon Monoxide (CO)
0-999ppm
1
<60s
<60s
▲
20ppm
Exposure time
.
▲
20ppm (after two hours)
▲
50ppm (after one hour)
▲
100ppm (after ten minutes)
▲
300ppm (after one minute)
5
Oxygen (O
2
)
0-25%
0.1
<60s
<60s
▼
19.5%
▼
18.5% or
▲
23%
2
Semiconductor Sensors
Methane (CH
4
) NG
0-20% LEL
0.1
<30s
<30s
▲
8% LEL
▲
10% LEL
10
Propane (LPG)
0-20% LEL
0.1
<30s
<30s
▲
8% LEL
▲
10% LEL
10
Hydrogen (H
2
)
0-20% LEL
0.1
<30s
<30s
▲
8% LEL
▲
10% LEL
10
NDIR. Intelligent Infrared CO2 Module. ABC Logic Auto Calibration
Carbon Dioxide (CO
2
)
(Default Setting)
0-5000ppm
1
<50s
<60s
▲
800ppm
▲
1000
ppm
10
▲
Rising Alarm
▼
Falling alarm
/
*EOL
–
Expected Operational Life
