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Chapter 4 Maintenance
Problem Solving
Error
E L
Calibration Tester cannot reach
Set Point Temperature because
room or device is too warm.
E M
Calibration Tester cannot reach
Set Point Temperature because
room or device is too cold.
Voltage
Power adapter voltage problem Call Welch Allyn for replacement
E0.1
Broken Heater, not heating at
all
E0.2
Heater run away (heater does
not turn off at appropriate time)
E0.3
Open thermistor
E0.4
Shorted thermistor
E0.5
Open RCAL resistor
E0.6
Shorted RCAL resistor
E0.7
Open PTB resistor
E0.8
Shorted PTB resistor
E0.9
Catastrophic internal failure
Welch Allyn 9600 Plus Calibration Tester
Problem
Ambient temperature and/or device
temperature should be within 18.3
°
to 26.7
minutes for thermal accommodation
prior to testing.
Ambient temperature and/or device
temperature should be within 18.3
to 26.7°C (65°F to 80
minutes for thermal accommodation
prior to testing.
Return to Welch Allyn for service
Return to Welch Allyn for service
Return to Welch Allyn for service
Return to Welch Allyn for service
Return to Welch Allyn for service
Return to Welch Allyn for service
Return to Welch Allyn for service
Return to Welch Allyn for service
Return to Welch Allyn for service
Solution
°
C
°
°
C (65
F to 80
F). Allow 30
°
C
°
F). Allow 30
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