Table D-1. Operating Status For Model 42I; Table D-2. Error Status For Model 42I - Thermo Scientific 42i Instruction Manual

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Table D–1. Operating Status for Model 42 i
 Bit
 Hex-value
Operating status:
Service Mode (On)
Maintenance (Local)
Zero gas (On)
Span gas (On)
Gas Unit Indication (ppm OR ppb)
Ozonator (Off)
PMT (Off)
Not used
Table D–2. Error Status for Model 42 i
 Bit
 Hex-value
Error status:
Not Used
Not Used
Not Used
Any Temperature Alarm
Pressure Alarm
Sample Flow Alarm
Ozonator Flow Alarm
Not used
Geysitech (Bayern-Hessen) Protocol
D7 D6 D5 D4 D3
8 7 6 5 4
80 40 20 10 08
MSB
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 1
0 0 0 1 0
0 0 1 0 0
0 1 0 0 0
1 0 0 0 0
D7 D6 D5 D4
8 7 6 5
80 40 20 10
MSB
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 1
0 0 1 0
0 1 0 0
1 0 0 0
Model 42i Instruction Manual
Geysitech Commands
D2 D1 D0
3 2 1
04 02 01
LSB
0 0 1
0 1 0
1 0 0
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
D3 D2 D1 D0
4 3 2 1
08 04 02 01
LSB
0 0 0 1
0 0 1 0
0 1 0 0
1 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
D-7