Specifications

5-6 Troubleshooting Plug-in Modules
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Troubleshooting Plug-
in Modules
❏ If tcpO
2
/tcpCO
2
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Perform a tcpO
2
zero check and tcpCO
2
gain check for the transducer. These checks tell you
whether the tcpO
2
/tcpCO
2
transducer is working correctly.
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The following list gives you the test equipment recommended to perform the specification test on
the tcpO
2
/tcpCO
2
plug-in:
• 1 Calibration Unit (Agilent 15210B or Radiometer TCC3)
• 1 Calibration gas bottle of Cal 1 gas (20.9% O
2
, 5% CO
2
) (see Chapter 11 “Replacement
Parts”)
• 1 Calibration gas bottle of Cal 2 gas (0% O
2
, 10% CO
2
) (see Chapter 11 “Replacement
Parts”)
• 1 Accessory Kit (15209-60010)
• 1 tcpO
2
/CO
2
transducer (Agilent M1918A or Radiometer transducer)
• 1 Calibration Tubing (M2205A)
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6WHS Ensure correct function of the Calibration Unit.
6WHS Make sure that you are not in Service mode.
6WHS Set the transducer temperature to 43.0
o
C.
6WHS Using a calibration unit (Agilent M1918A or Radiometer calibration unit TCC3) and Cal
1 gas, calibrate the module as described in the tcpO2/tcpCO2 Module sectionof the
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6WHS Check and note down the displayed values for tcpO
2
and tcpCO
2
. The values should not
fluctuate more than 2 mmHg (0.3kPa) in 30 seconds.
6WHS If the readings fluctuate more than 2 mmHg (0.3kPa), re-membrane the transducer
ensuring that the old electrolyte is thoroughly removed and check wether you need to
activate the transducer. The tcpO2/tcpCO2 Module sectionof the
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tells you how to do this.
6WHS Repeat steps 4 and 5. If the test fails again, the transducer has unacceptable drift and has
to be replaced. Repeat steps 4 and 5 with new transducer.
6WHS Replace the Cal 1 gas cylinder on the calibration unit with the Cal 2 gas cylinder. Turn
on the gas supply of your calibration unit.