Welch Allyn Sure Temp Plus 692
Welch Allyn · Model Sure Temp Plus 692
Ergonomic design - comfortable to hold, easy to use, and very durable. Interchangeable, removable probe wells reduce the risk of cross-contamination. Large LCD display with location identification capability. Includes a 60-second pulse timer for counting pulses and respirations. Mechanical or electronic security options to help prevent theft. Takes approximately 5,000 readings on 3 "AA"batteries. Wall mount standard with the SureTemp® Plus 692 model.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Slow or inaccurate readings
HighSymptoms: Temperature reads high/low vs a reference, long predict cycle.
Root cause: Probe fault, ambient out of the 10-40 C range, wrong probe well, or Biotech Mode configured incorrectly.
Probe error codes (E0.1 / E0.2 / E0.4 / E0.5)
MediumSymptoms: E-codes on the display during a predict cycle.
Root cause: Excessive heater energy, A/D out of range, probe over-temperature, or no probe temperature rise - retry a cycle, then replace the probe.
Battery indications
MediumSymptoms: Blinking battery frame, "b" on the display, up/down arrow.
Root cause: 3x AA cells below ~3.0 V or above ~5.375 V.
Probe well damage / cross-contamination risk
LowSymptoms: Cracked or missing removable probe well.
Root cause: Wear or a drop.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Oral / rectal probe assembly
Class Periodic replacementRel. cost $$R&R Easy
Removable probe wells
Class Frequent wear itemRel. cost $R&R Easy
AA alkaline batteries (x3)
Class Frequent wear itemRel. cost $R&R Easy
Wall mount
Class Major service partRel. cost $R&R Easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Oral / rectal probe assembly | Periodic replacement | $$ | Easy |
| Removable probe wells | Frequent wear item | $ | Easy |
| AA alkaline batteries (x3) | Frequent wear item | $ | Easy |
| Wall mount | Major service part | $ | Easy |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Readings inaccurate
- Verify the Biotech Mode settings are correct for the site.
- Confirm the ambient temperature is 10-40 C.
- Check the correct probe and probe well are fitted.
- Verify calibration with a Model 9600/9600 Plus tester.
- Replace the probe if it is out of tolerance.
Symptom: E0.x error code
- Note the code (E0.1 heater energy, E0.2 A/D range, E0.4 probe over-temp, E0.5 no temp rise).
- Try another predict cycle.
- Confirm the tip temperature and ambient are in range.
- If the code persists, replace the probe.
- If it still fails, contact Welch Allyn Customer Care.