OPERATION
2-17
2.6 Preset Alarm Limits and Calibration
The MiniRAE 2000 portable VOC monitor is factory
calibrated with standard calibration gas, and is
programmed with default alarm limits. There are 102 gas
settings stored in the library. Some examples of
calibration and alarm limits are shown below. Refer to
Section 4 on programming procedures for selecting a
different gas, perform a calibration or set new alarm limits.
Factory Calibration and Preset Alarm Limits
Cal Gas
Cal
Span
unit
Low
High
TWA
STEL
Isobutylene
100
ppm
50
100
100
250
Hexane, n-
100
ppm
500
750
500
750
Xylene, m-
100
ppm
100
150
100
150
Benzene
5
ppm
2
5
5
2
Styrene
50
ppm
20
40
20
40
Toluene
100
ppm
50
100
50
100
Vinyl Chloride
10
ppm
5
10
5
10
Custom
100
ppm
50
100
50
100
