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Chapter 4: Operation
65-2640XL-04 M2A Transmitter Operator’s Manual
Chapter 4: Operation
Overview
This chapter describes the M2A in normal operation. This chapter also describes the M2A in
alarm 1, alarm 2, and fail conditions and suggests responses to these conditions.
Normal Operation
Normal operation is defined as follows:
•
The start-up procedure is complete.
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The M2A is not indicating an alarm 1, alarm 2, or fail condition.
•
The M2A is not in Calibration, Configuration, or Gas Type modes.
During normal operation, the M2A simultaneously displays the current gas reading, unit of
measure, and target gas.
Information Screen
The Information Screen displays the M2A’s operating voltage and firmware and hardware
information. To display the Information Screen, do the following:
1. Press and hold the DOWN/NO button for 3 seconds. The Information Screen will appear.
2. Continue holding the DOWN/NO button to keep the Information Screen on the display. The
top line indicates the operating voltage that is connected to the M2A. The second line
indicates the firmware that is running, version 5.0 in this example, and the M2A’s hardware
version, version 2A in this example. This information may be useful if you need to contact the
factory with questions about the M2A.
3. Release the DOWN/NO button when you are done viewing the Information Screen. The
display will return to the normal operation screen within a couple of seconds.
METHANE
0 %LEL
24.2V
v5.0L 2A
