TELEDYNE API T300M - Second Gas Sensor Options Calibration; Data Recording Devices; Calibration Procedures

92 Calibration 083730300A DCN8101
3. Set the reporting range (Setup>Analog Output>CO Concentration, Min Max). Ensure that
the upper span limit entered for the reporting range (in the Max field) is the maximum
expected concentration of the undiluted gas.
4. Set the dilution factor as a gain, e.g., a value of 20 means 20 parts diluent and 1 part sample
gas (Setup>Vars>Dilution Factor).
5. Calibrate the analyzer; ensure that the calibration span gas is either supplied through the
same dilution system as the sample gas or has an appropriately lower actual concentration.
EXAMPLE: If the reporting range limit is set for 100 ppm and the dilution ratio of the sample
gas is 20 gain, either:
• a span gas with the concentration of 100 ppm can be used if the span gas
passes through the same dilution steps as the sample gas, or;
• a 5 ppm span gas must be used if the span gas IS not routed through the
dilution system.
4.1.6 SECOND GAS SENSOR OPTIONS CALIBRATION
For the optional O
2
sensor, calibrate per Section 4.6.1 during installation of the
instrument.
For the optional CO
2
sensor, calibrate per Section 4.6.2 during installation of the
instrument.
4.1.7 DATA RECORDING DEVICES
A strip chart recorder, data acquisition system or digital data acquisition system should be
used to record data from the serial or analog outputs of the T300/T300M.
• If analog readings are used, the response of the recording system should be checked
against a NIST traceable voltage source or meter.
• Data recording devices should be capable of bi-polar operation so that negative readings
can be recorded.
• For electronic data recording, make use of the internal data acquisition system (DAS) by
setting up the Data Logger.
4.2 CALIBRATION PROCEDURES
Check that the pneumatic connections for the specific instrument configuration are as
instructed in Section 2.3.2.
Verify/change (if needed) the settings as follows:
• User Units (unit of Measure): PPB (Setup>Vars>User Conc Units)
• Min and Max Concentration Range (Max should be highest concentration
expected to measure) (Setup>Analog Outputs>Analog Output[#], Signal Out,
[Gas] Concentration)
• Range Mode: SNGL (Setup>Vars>Range Mode)