Oldham BM25

66
BM 25/25W
Instruction Manual
Table No. 6
Nitrogen dioxide
(NO
2
)
Sulfur dioxide
(SO
2
)
Sensor P/N
6313801
6313819
Standard range (1)
30
30
Measurement principle
Electrochemical
Electrochemical
Display resolution(1)
1
1
Accuracy (2)
1
1
Repeatability (3)
1
1
Zero/Span drift (4)
0.5 / 5
0.5 / 2
Response time (5)
< 30s
< 60s
Temperature (6)
-20°C to +40°C
-20°C to +50°C
Relative humidity and
pressure range (7)
■ 10 – 90% RH
■ bar ± 20%
■ 15 – 95% RH
■ 1 bar ± 20%
Lifetime (8)
30 months
24 months
Storage conditions and
maximum storage time
(9)
■ 4°C – 20°C
■ 10 – 60% RH
■ 1 bar ± 10%
■ 2 months
■ 4°C – 20°C
■ 10 – 60% RH
■ 1 bar ± 10%
■ 2 months
Warm-up Delay (10)
Operational upon start up
Notes
■ Exposure to high levels of organic solvents
can damage the sensors.
■ Exposure to gases at levels higher than the
monitor’s range can damage the device.
Recalibrate sensors if they go out of range.
1. In ppm unless otherwise specified.
2. At 50% of scale (same unit as range).
3. As % of signal read unless otherwise specified.
4. Nominative values in normal use conditions per month as % of scale for zero and as % of
measurement for sensitivity.
5. In seconds at 90% of final value.
6. In °C.
7. Without condensation.
8. Averaged value. In normal conditions. 12 month warranty.
9. All sensors must be protected from air when stored.
10. Time to reach full performance of the sensor after warm-up.
Other gases, other ranges: consult us at info@oldhamgas.com