XTC601 User’s Manual
Michell Instruments
61
APPENDIX E
Register Type I – Status/Error
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w
Bit
HEX
Meaning
Namur LED
0
0001
Displays O
2
HSR or O
2
depending on setting
(system)
N/A
1
0002
%Gas out of range (beyond calibration range,
e.g. 0–25%)
N/A
2
0004
Low Alarm ON
YELLOW 1 ON
3
0008
High Alarm ON
YELLOW 2 ON
4
0010
Ext Phase Control i/p signal error
(input < 3.2mA or >21.4mA)
RED FLASH
(priority2)
5
0020
Ext sens signal error
(input < 3.2mA or >21.4mA)
RED FLASH
(priority2)
6
0040
Cell T not stable
(not /-0.15°C of setpoint for continuous
period 15 minutes)
RED ON
(priority 1)
7
0080
Cell T sensor error
(cell tempr measures <-50 or >80°C)
RED ON
(priority 1)
8
0100
N/A
N/A
9
0200
Thermal Conductivity sensor error
(Vcomp <=1 or >8191)
RED ON
(priority 1)
10
0400
PCB tempr too high
(PCB tempr > Cell tempr setpoint)
RED ON
(priority 1)
11
0800
Phase 1 Active
N/A
12
1000
Phase 2 Active
N/A
13
2000
Phase 3 Active
N/A
14
4000
Instrument is BLIND version (system)
N/A
15
8000
N/A
N/A
Register Type J
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w
e.g. Day
e.g. Month
For reading each 8 bits represents a RTC value. For setting only the Lower 8 bits are used for each
RTC value.
