Zero Calibration Procedure; Figure 3-3: Interface Panel Showing Calibration Switch Position - Teledyne 2750 Operating Instructions Manual

Turbine Generator Gas Analyzer

3.3.1 Zero Calibration Procedure

1. Connect the zero gas (100% CO
sure that the pressure regulator is set at approximately 5 psig.
CAUTION: ALWAYS HAVE THE SAMPLE FLOW VALVE
CLOSED WHEN TURNING ON THE SAMPLE (OR
CALIBRATION GAS) STREAM. FLOW RATES
GREATER THAN 2.5 SCFH CAN DAMAGE THE
SENSOR.
2. If not already connected, connect the vent line.
3. Plug the DC adapter into the unit. See Figure 3-2. Plug the other
end into a 90-264 VAC 43-67 Hz supply.
4. Turn the instrument on and allow it to warm up for 20 minutes.
5. Allow the zero gas to flow through the analyzer. Wait several
minutes before making any flow adjustments. Then set the gas
flow to 0.5-1 SCFH using the flow control valve.
6. With CO flowing through the instrument, set the calibration
2
switch (see Figure 3-3) to the air/CO
range. Verify that the range selector switch is on the air/CO
position.

Figure 3-3: Interface Panel Showing Calibration Switch Position

Teledyne Analytical Instruments
Installation
) to the sample valve. Make
2
position for zeroing that
2
2
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