Oldham BM25 User Manual

7 - Technical Specifications
61
Sensors
Non-exhaustive list.
Table No. 1
Methane
(CH
4
)
Methane
(CH
4
)
Methane
(CH
4
)
Sensor reference
6314064
6313888
6313889
Standard range (1)
0 - 100% LEL CH4
0 - 100% LEL CH4
0 - 100% vol
Measurement principle
Infrared
Catalytic
Catharometric
Display resolution(1)
1 % LEL
1 % LEL
1% v/v
Accuracy (2)
2
2
2
Repeatability (3)
± 2 % LEL
± 1 % LEL
± 1% vol
Zero/Span drift (4)
1 / 2
0.5 / 5
0.2 / 2
Response time (5)
< 30s
< 20s
< 20s
Temperature (6)
-20°C to +55°C
-20°C to +50°C
-20°C to +50°C
Relative humidity and
pressure range (7)
■ 0 – 99 % RH
■ 1 bar ± 10 %
■ 0 – 99 % RH
■ 1 bar ± 20 %
■ 0 – 99 % RH
■ 1 bar ± 20 %
Service life (8)
> 60 months
48 months
60 months
Storage conditions and
maximum storage time
(9)
■ 4°C to +20 °C
■ 10-60 % RH
■ 1 bar ± 10 %
■ 6 months
maximum
■ -40°C to +40 °C
■ 10-60 % RH
■ 1 bar ± 10 %
■ 6 months
maximum
■ -40°C to +40 °C
■ 10-60 % RH
■ 1 bar ± 10 %
■ 6 months
maximum
Warming-up delay (10)
300s
30s
30s
Notes
Hydrogen cannot be
detected with IR
sensor.
■ Measurement is
underestimated
if oxygen level is
< 10 %.
■ Exposure to high
levels of silicon or
sulfur vapors may
damage the sensor.
■ The monitor is
sensitive to the
majority of
explosive gases.

Oldham BM25 Specifications

General

Brand	Oldham
Model	BM25
Category	Measuring Instruments
Language	English