Welch Allyn Medical Diagnostic Equipment Thermometer 690 Manual De Usuario

The following table describes the error codes displayed on the thermometer, their 
corresponding descriptions, and the actions to take to correct the error. If the unit fails to 
operate properly after completing the suggested procedure listed in the following table, contact 
Welch Allyn

®

 Customer Care at 1-800-535-6663. 

E0.1

Excessive Heater Energy

Try another predict cycle.
If the problem persists replace the probe or contact Welch 
Allyn Customer Care.

E0.2

A/D Measurement out of 
range error.

Make sure the temperature is within the operating range of 
50ºF/10ºC and 104ºF/40ºC
If the problem persists replace the probe or contact Welch 
Allyn Customer Care.

E0.4

Probe Over Temperature 
(110ºF/43.3ºC)

Make sure the tip temperature is below 110ºF/43.3ºC.
If the problem persists replace the probe or contact Welch 
Allyn Customer Care.

E0.5

No Probe Temperature Rise. 
(The heater has no effect.)

Try another predict cycle.
If the problem persists replace the probe or contact Welch 
Allyn Customer Care.

E0.6

Probe EEPROM read failure. 
(Bad EEPROM handshake.)

Verify the batteries are fresh.
If the problem persists replace the probe.

E0.7

Probe EEPROM is 
un-initialized.

Verify that the batteries are fresh.
If the problem persists replace the probe.

E0.8

EEPROM CRC Failure 
(EEPROM is corrupted.)

Verify that the batteries are fresh.
If the problem persists contact Welch Allyn Customer Care.

E0.9

Bad probe calibration.

Replace with a calibrated probe.

E4.0

PTB measurement out of 
range.

Try another predict cycle.
If the problem persists contact Welch Allyn Customer Care.

E4.1

RCAL measurement out of 
range.

Try another predict cycle.
If the problem persists contact Welch Allyn Customer Care.

E4.2

Reference power supply 
malfunction.

If the problem persists contact Welch Allyn Customer Care.

E4.3

Device EEPROM save 
failure.

Verify that the batteries are fresh.
If the problem persists contact Welch Allyn Customer Care.

E4.4

Device EEPROM starting 
handshake failure.

Verify that the batteries are fresh.
If the problem persists contact Welch Allyn Customer Care.

E4.5

Device EEPROM response 
failure.

Verify that the batteries are fresh.
If the problem persists contact Welch Allyn Customer Care.

E4.6

Transmit failure to the 
Device EEPROM.

Verify that the batteries are fresh.
If the problem persists contact Welch Allyn Customer Care.

E4.7

Can’t initialize the device 
EEPROM 

If the problem persists contact Welch Allyn Customer Care.

E4.8

Device was not calibrated

Replace the device with a calibrated device.

E5.0

Heater is not working 
properly.

Try another cycle. 
If the problem persists contact Welch Allyn Customer Care.