Instruction 19-9220
CO
2
Monitor 2800
1.0 INTRODUCTION
1.1 General
The Bacharach CO
2
Monitor Model 2800 is easy to use, but
it is essen-
tial that these Operating Instructions
are read prior to use.
The CO
2
Monitor is designed to warn the user of increasing Carbon Diox-
ide levels in the range of 0 to 50,000 ppm. The unit is based on the Infra-
red absorption principle and has two preset alarm levels - normally 5,000
ppm and 10,000 ppm. When either of these levels is reached, a combina-
tion of audible and visual alarm signals will be activated until the CO
2
level returns below the lowest preset level. It is a compact, easy-to-use
unit and can be hand-held or attached to a belt.
1.2 Main Features
• Audible and visual warnings if CO
2
exceeds preset levels.
• Easy to operate with user-friendly screen display.
• Easy calibration in clean air.
• Functional test mode.
• Fault condition warning.
The unit is normally supplied complete with a battery charger and oper-
ating instructions.
1.3 Battery
The battery should provide 8 to 10 hours of continuous use when fully
charged. When the BATTERY LOW indicator is activated, the unit must
be recharged as soon as possible using the battery charger (supplied)
which connects to the socket on the side of the unit.
1.4 Units of Measurement
Models are available with readout of CO
2
concentration in either parts
per million (ppm) or % (unit must be reconfigured using the optional
BACH-COM Software). Please note that 1 % = 10,000 ppm and 0.01 % =
100 ppm.
1