Philips IntelliVue MP70 Service Manual

9 Anesthetic Gas Module Checking and Calibrating the Anesthetic Gas Module
196
CAUTION Do not pressurize the reservoir bag.
Do not attempt the calibration process if tere are any visible leaks in the bag or tubing.
Prevent the bag from emtying before the calibration procedure is complete.
Check 8 Check if the readings for the different gases in the Gas Analyzer Calibration window are
within the specified tolerance limits.
9 Perform a span calibration for each gas that you find out of its tolerance limits.
Calibration 10 In the Setup Gas Analyzer menu select the calibration item for each gas that you want to
calibrate. You must have completed the flow adjusment in order to perform these calibrations. The
different items are:
Start O
2
Cal
Start CO
2
Cal
Start N
2
O Cal
Start Agent
Cal
11 .Select the concentration of the appropriate gas in your test gas and confirm when prompted to.
12 Wait for the calibration to finish. Check that in the Gas Analyzer Calibration window a
Done indication is displayed against the gas that you wanted to calibrate. If not, repeat the span
calibration for this gas.
If you still get a failure refer to the troubleshooting section of this chapter and correct the fault.
Then repeat span calibration.
13 Repeat steps 10 to 12 until all the gases that were out of tolerance are calibrated.
14 If any calibration was necessary, perform a zero calibration and repeat the Span Calibration Check.
15 Remove the calibration gas from the system and purge with room air for 10 seconds. Then check
that the values in the
Gas Analyzer Calibration window reflect the concentrations present
in room air inside the tolerance limits:
O
2
at 20.9% +/- 0.2%
CO
2
at 0% +/- 0.1%
N
2
O at 0% +/- 0.3%
Agent at 0% +/- 0.1%
If this is not the case, repeat all calibration checks and procedures.
These values are valid for the Philips M1660A Calibration Gas Mixture.
For other calibration gas mixtures use the values specified for the mixture, applying the same tolerance
limits as given in this table for the Philips mixture (for example Japanese users should calibrate the
Anesthetic GAs Module using the DOT29M1060 gas mixture of Schott Medical Products).
Gas M1660A value To l er ance Li m i t s
O
2
52% +/- 1.0%
CO
2
5% +/- 0.1%
N
2
O40%+/- 2.0%
Anesthetic Agent
or Halocarbon 22 as substitute
3% +/- 0.1%

Philips IntelliVue MP70 Specifications

General

Brand	Philips
Model	IntelliVue MP70
Category	Medical Equipment
Language	English