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65-2645-05SS-04 M2A Transmitter Operator’s Manual
Register 33
Register 33 is zero suppression.
Toxics and LEL: 0%-6% of full scale
Oxygen: 0%-0.7% Oxygen
The decimal point location is the same as specified in Register 1.
Register 34
Register 34 is noise filter.
Integer values in seconds.
0-60 in 5 second increments.
Register 35
Register 35 is calibration timeout in minutes (5, 10, 15, 20, 25, or 30).
Register 36
Register 36 is calibration month (upper byte) and day (lower byte).
This is zero based (e.g. January=0 and the 1st=0).
Register 37
Register 37 is the calibration year.
Register 38
Register 38 is the calibration outcome.
Upper=Gas Operation
Lower=Air Operation
Calibration Outcome Codes:
1=Sensor Missing
2=Sensor Too Weak
3=Signal Too Strong
4=Not Enough Span
5=Negative Reading
6=Span Gas Value Is Not OK
7=Calculated Zero Is Too Low
8=Calculated Zero Is Too High
9=Zero Failure
10=Span Failure
11=Calibration Is Overscale
12=LEL Sensor Offset Is Too High
13=LEL Null Operation Failed
14=Operation Not Performed
Register 39
Register 39 is the auto-zero disable.
0=AutoZero Enabled
1=AutoZero Disabled
Register 40
Register 40 is the remote configuration register access level
0=None
1=Alarm Reset
