User Manual

1 7 65-2649RK-HC-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 , ala rm 2, and fa il conditions and suggests responses to these conditions.
Normal Operation
Normal operation is defined as follo ws:
• The start-up procedure is comp lete.
• The M2A is not indicating an alar m 1, al arm 2, or fail condition.
• The M2A is not in Calibration, Configuration, or Gas Type m ode s.
During norm al operation, the M2 A simultaneously displays the current gas reading, unit
of measure, and target gas.
Information Scr een
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 ho ld the DOWN/N O button for 3 seconds. Th e Inf ormation Screen will
appear.
2. Continue holding the DOWN/NO button to keep th e 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 , v ersion 2A in this example. This inf ormation may be usef ul
if you need to contac t the factor y 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.
HC
0 %LEL
24.2V
v5.0L 2A