MSA SMC 5100-IT Series Operating Manual page 26

5 Operation
The table below defines the key operational displays on the operator interface.
STARTING Delay from loss of power at start-up
XXX PPM
LXXX PPM
HXXX PPM High Alarm (Alarm)
HIGH
CXXX PPM Calibration Mode
ACK
NOTE: If display shows "Start" instead of "Starting", the module must be calibrated before using it.
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Display
Concentration
Low Alarm (Warning)
Measures gas, concentration exceeds 100% of Full Scale
Acknowledged Function
SMC 5100-XX-IT Toxic Gas Detector Module
Description
US