Gesytec (Bayern-Hessen) Protocol
Gesytec Commands
Thermo Fisher Scientific
Model 48
i
Instruction Manual
D-7
The following measurements reported in response to DA command are for
the Model 48
i
.
The 1 measurement reported in single range mode includes:
●
CO
The 2 measurements reported in dual or auto range modes include:
●
low CO
●
high CO
See
Table D–1
for operating status and
Table D–2
for error status for the
Model 48
i
.
Table D–1.
Operating Status for Model 48
i
D7 D6 D5 D4 D3 D2 D1 D0
Bit
8
7
6
5
4
3
2
1
Hex-value
80 40 20 10 08 04 02 01
MSB
LSB
Operating status:
Service
Mode
(On)
0 0 0 0
0 0 0 1
Maintenance
(Local)
0 0 0 0
0 0 1 0
Zero
Gas
(On)
0 0 0 0
0 1 0 0
Span
Gas
(On)
0 0 0 0
1 0 0 0
Gas Unit Indication (ppm OR ppb) 0
0
0
1
0
0
0
0
Ozonator
(Off)
0 0 1 0
0 0 0 0
PMT
(Off)
0 1 0 0
0 0 0 0
Not
Used
1 0 0 0
0 0 0 0
Measurements reported in
response to DA command
Single Range Mode
Dual/Auto Range Mode
Operating and Error
Status
