RKI Instruments M2 for 12 VDC - Manual (Page 48)

43 M2 Transmitter Operator’s Manual, 12 V DC Operation
Register 9
Register 9 is the alarm 2 relay state.
0=Normally De-Energized
1=Normally Energized
Register 10
Register 10 is the alarm 2 relay reset.
0=Latching
1=Self-Resetting
Register 11
Register 11 is the alarm 2 ON delay.
Integer value is in seconds.
Register 12
Register 12 is the alarm 2 OFF delay.
Integer value is in seconds.
Register 13
Register 13 is the zero suppression.
Toxics and LEL: 0%-6% Full Scale
Value must be an integer. Any decimals are omitted.
Register 14
Register 14 is the noise filter.
Integer value is in seconds (0-60 in 5 second increments).
Register 15
Register 15 is the calibration timeout.
Value is in minutes (5, 10, 15, 20, 25, or 30).
Register 16
Register 16 is explained in “Supported Modbus Functions” in the M2 manual.
Register 17
Register 17 is the calibration month (MSB) and day (LSB).
This is zero-based (e.g. January=0 and the 1st=0).
Register 18
Register 18 is the calibration year.
Register 19
Register 19 is for clearing change flags. When parameters are changed at the M2, a flag is
raised at the controller. This register can be used to clear those flags.
Table 16: Register 19, Clear Change Flags
Bit(s) Value & Field
[15:2] Unused
[1] Write “1” to this bit to clear “Gas Type Changed” flag