3-1
OPERATION
3
OPERATING INSTRUCTIONS
Operating Modes
The Gasurveyor 500 is a dual configuration instrument. It
operates as a Confined Space Monitor (CSM) or as a
Combustible Gas Indicator (CGI) depending on the button
used to switch it on.
For Confined Space Monitor operation the instrument must
be switched on by pressing and holding Switch One (
)
for approximately one second. During warm-up in CSM
mode the instrument displays the preset alarm levels.
For Combustible Gas Indicator operation the instrument
must be switched on by pressing and holding Switch
Two (
) for approximately one second.
Figure 3-1 shows the four operating switches.
Figure 3-1 Instrument Front Plate
Summary of Contents for Gasurveyor 500 Series
Page 1: ...Gasurveyor 500 User Handbook Distributed By 713 844 1300 info heathus com www heathus com...
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