Vaisala FD12P - Manual (Page 67)

Chapter 4 _________________________________________________________________ Operation
VAISALA ________________________________________________________________________ 67
The status bits emulate the MITRAS status as shown in Table 16 and
Table 17 below.
Table 16 Transmitter Status Correspondence between
MITRAS and FD12P
BIT MITRAS FD12P
0 MEAS MODE ON
1 ECON MODE OFF
2 OPTICAL SURFACE TRB warning or alarm
3 POWER SUPPLY VBB (power supply)
4 HEATING VH (lens heater current)
5 FLASH LAMP LEDI (LED intensity control)
6 BL METER BL meter interface (DRI21)
connected
7 MEASUREM. LOOP SIGNAL -
Table 17 Receiver Status Correspondence between
MITRAS and FD12P
BIT MITRAS FD12P
0 MEAS MODE ON
1 SPARE
2 OPTICAL SURFACE REC. BACKSCATTER
warning or alarm
3 POWER SUPPLY ±15 V status
4 HEATING
OK = OFF
5 CALIBRATION AMBL
6 TEST
OK = OFF
7 SPARE
The MITRAS polling command is the following:
P<sp><ID><cr><lf>