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TCD Analyzer
Group
Address
Range Status
0x24
(0x24)
0x25
Current Heater
0x26
Temperature
0x27
(0x25-0x28)
0x28
The gas value is given in four bytes, those four bytes are combined into
a 32-bit word to be converted into a float value. The float value is O2
concentration in ppm.
4.5.11 Analog Output
The analog output signal from the Model 2000RS is a voltage (0-1
VDC) or current (4-20 mA) signal which depends on the concentration
AND the currently activated analysis range. To relate the signal output
to the actual concentration, it is necessary to know what range the
instrument is currently on, especially when the analyzer is in the auto
ranging mode.
The Analog Output screen allows the user to choose the output
configuration for the range ID and the concentration. The available
choices are 0-1 VDC or 4-20 mA. Both outputs are not available at the
same time.
Teledyne Analytical Instruments
Bit
Variable
Number
0
Range type
1
Range mode
2
Range Linear RLiner : NON-0 LIN-1
3
Edit Allowance
4
Range Unit
5
Reserved
6
Reserved
7
Reserved
Heater Temp
(LSB)
Heater Temp
(MSB)
Operation
Variable description
RType : NON-0 INV-
1
RMode : AUTO-0
MAN-1
EditAllowed : NO-0
YES-1
RUnit : %-0 PPM-1
Current Heater
Temperature value
updated
69
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