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Cambridge Sensotec Rapidox 1100ZR-H-OL O
2
Analyser Instruction Manual
Version 1.2
19
Last printed 22/07/2015 18:02:00
Response:
!Possible sensor fault[CR][LF]
Meaning:
The sensor has failed to reach operating temperature within 10
minutes from power up. This may be due to the age of the sensor, or
because a high thermal conductivity gas is being used.
Response:
!No sensor or sensor fault[CR][LF]
Meaning:
Sensor is not connected, or there is a fault in the sensor
Response: d2.959E+05,-1.426E+01,2.000E+00, ,23:19:40,14/01/00,,,ALM1&2
,0[CR][LF]
Meaning:
“d” means data is being sent
“2.959E+05” is Oxygen reading in ppm
“,” = data separator
“-1.426E+01” is Oxygen sensor reading in mV
“,” = data separator
“2.000E+00” is the internal pressure sensor reading in bar (gauge)
“,” = data separator
“23:19:40” is Rapidox time
“,” = data separator
“14/01/00” is Rapidox date in DD/MM/YY format
“,,,” = data separators
“ALM1&2” means both alarm conditions 1 and 2 exist *
“,” = data separator
“0” = sensor state code (0=OK, 1=O
2
O/Range, 2= O
2
U/Range, 3=O
2
Fault, 4=Press. U/Range, 5=Press. O/Range, 6= Press. Fault**)
[CR] = ASCII 13 (Carriage Return character)
[LF] = ASCII 10 (Line Feed character)
*
If no alarm conditions exist, this data is empty, so the response would look like d2.959E+05,-
1.426E+01,2.000E+00, ,23:19:40,14/01/00,,,,0[CR][LF]
**
These are binary codes so fault combinations produce other numbers
Response: ?
Meaning:
“D” command was not recognised. Try to send it again.
7.15.2
RS485 protocol
Please contact Cambridge Sensotec for further information on this feature.
7.16
Printing
If you have purchased the printer option then you have the option to print out
various data from the analyser straight on to thermal paper. Simply connect the
printer to the unit using the serial socket on the rear of the machine and make
sure the printer is switched on (battery and mains versions are available). To
print the live values on the LCD at any time simply press the RIGHT arrow button
on the front panel. Each push of the button will print out the serial number
followed by the data in a tabbed format followed by a blank line. If the button is