Filter
Top Products
MODEL 2230R, Process Hydrogen Analyzer
Page 17
6 – Temperature calibration data
A – All of the above
E
Field Verify (refer to the Section 5.4 VERFICATION).
F
Field Calibration (refer to the Section 5.5 CALIBRATION).
G < fmt> <opt>
Start or resume the sensor operation: if needed, heat the ASIC, setup
the sensor, and output data on serial port; this restores default
settings (refer to the FORMAT <fmt> and OPTIONS <opt> sections).
H <low> <high>
Set the hydrogen reporting range: <low> to <high> in %H₂.
I <low> <high>
<err> <not rdy>
Set the DAC current output range: <low> to <high>; error output
<err>; and not ready output <not rdy> milliamps. Possible range from
0 to 20 milliamps.
L < fmt> <opt>
Print current hydrogen reading. Used to poll for hydrogen readings.
Default format <fmt> is current setting (refer to the FORMAT <fmt>
and OPTIONS <opt> sections).
P <atm>
Select atmospheric pressure of gas. Factory default pressure is 1
ATM.
S
Stop the sensor: turn off heater, set Bias to zero, set DAC outputs to
zero, and stop reporting data on the serial output.
V <low> <high>
<err> <not rdy>
Set the DAC voltage output range: <low> to <high>; error output
<err>; and not ready output <not rdy> in volts. Possible range from 0
to 5 volts.
X
Clear field calibration data (returns to last factory calibration data).
Format <fmt>
The Format <fmt> string is a two character hexadecimal representation
of an 8 bit value derived from the following table. The user determines
which data is needed and selects that bit value. Once all selections are
made the values are summed bitwise and then converted to a two
place hexadecimal value. To aid in the conversion, a 4 bit to
hexadecimal conversion table follows in EXAMPLE 3.
Format: Bit Value Identifiers
Serial output Format <fmt> parameter: select the desired columns of data from this list, add
the bit value for each column bitwise, and convert into two hexadecimal characters using the
4 bit-to-Hexadecimal table in EXAMPLE 3.
Description Bit Value
Include time stamp
1 0 0 0 0 0 0 0
Include raw ADC values
0 1 0 0 0 0 0 0
Include PCB temperature
0 0 1 0 0 0 0 0
Include sensor temperature
0 0 0 1 0 0 0 0
Include capacitor reading
0 0 0 0 1 0 0 0