Calibration; Introduction - Welch Allyn PROPAQ CS Service Manual

4

Calibration

Introduction

This section provides procedures to perform all adjustments required to calibrate the
Propaq CS monitor to conform to Welch Allyn specifications. Calibration requires opening
the monitor case. This must be performed only by qualified personnel.
• Calibration includes adjustment of:
• Battery charger
• Main power supply
• Real-time ECG output
• IBP gain
• NIBP gain
• Mainstream CO
Additional circuit testing is also included in this section. Perform calibration to adjust the
above parameters if you replace a circuit board or if a parameter does not meet
specifications. After any calibration procedure, always perform the Functional Verification
procedure
Note
barometer
2
("Functional verification"
WARNING Whenever the monitor is opened for calibration or repair, a risk
(leakage) current safety check as well as a dielectric strength integrity (hi-pot) test
must be performed as described in this section.
Respiration, temperature, printer, and SpO
Sidestream CO has no user-performable calibration. After replacement of any
2
modules to support service of these options, perform a functional verification for
those associated modules.
The mainstream CO circuitry should be calibrated only if it fails the functional
2
verification AND you have eliminated all possible faults as listed in the table
"Possible sources of CO2 verification test errors"
on page 13).
options do not require calibration.
2
on page 35.
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