Electromagnetic Immunity and Emissions Declaration Immunity Standard IEC Basic Standard IEC 60601-1-2 2001 ± 6kV Electrostatic discharge IEC 61000-4-2 ± 8kV 3/10 V/m RF EMF Immunity IEC 61000-4-3 80 MHz-2.5GHz 3A/m Magnetic field IEC 61000-4-8 150kHz-80MHz Emissions Summary ® The SureTemp Plus model 690 and 692 thermometers are intended for use in the electromagnetic environment specified below.
End-user operation of the Model 690 and 692 Thermometers is covered in the SureTemp Plus Model 690 and 692 Operator's Manual PN 71213-0000. Technical Support and Service Centers For information about any Welch Allyn product, call Welch Allyn Customer Support: USA +1 800 535 6663 Australia +61 2 9638 3000...
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The use of any other probe cover may produce temperature measurement errors or result in inaccurate readings. • Do not take a patient’s temperature without using a Welch Allyn disposable probe cover. Doing so can cause patient discomfort, patient cross contamination, and erroneous temperature readings.
Contact the Welch Allyn Customer Service Department for assistance. • Welch Allyn recommends that batteries are removed for long term storage since alkaline batteries can deteriorate and leak over extended periods of time, and possibly cause damage to the thermometer.
2. Operating Characteristics Basic System Description ® ® The Welch Allyn SureTemp Plus Model 690 and 692 thermometers are portable electronic thermistor thermometers. Users can measure a patient's temperature in the oral, axillary, and rectal body sites of adult, pediatric, and newborn patients.
The SureTemp Plus Thermometers must use the standard Welch Allyn thermistor probe ® covers, Part No. 05031. The probe covers are compatible across all Welch Allyn thermistor- based thermometers. 2.1.5 Batteries The Model 690 and 692 thermometers use three standard alkaline AA batteries, which provide longer life than standard AA batteries.
Model Features ® Features of the SureTemp Plus Thermometer models (690 and 692) are listed below. Table 2-1: Feature differences between Models 690 and 692 Feature Model 690 Model 692 Probe Cover Storage F/C Conversion Last Temperature Recall Monitor Mode Detachable Probe Oral/Axillary/Rectal Modes on Each Thermometer...
Immediately following the LCD segment test, the software revision is displayed on the screen for 2 seconds. At the end of the self-test, the display goes blank and the unit is ready to operate. 2.3.3 Low Power Mode The Low Power mode allows the thermometer to conserve power when it is not in use. The unit will automatically enter the Low Power mode following one of these conditions: 1.
Monitor mode is also useful in testing the accuracy of the combined probe/instrument system ® when the probe is warmed to a known temperature, as with a Welch Allyn Model 9600 or 9600 Plus Calibration Tester or in a circulating water bath.
2.3.6 Pulse Timer Mode (Model 692 only) Pulse Timer mode is activated from Low Power or Recall mode by pressing the Pulse Timer button. The display will then count up in seconds, and the unit will emit an audio beep at 0, 15, 30, 45 and 60 seconds.
2.3.9 F/C Conversion The temperature switches to °F or °C scale by pressing and releasing the C/F button. The default temperature scale can be set to °F or °C in the biotech mode. A temperature must be displayed on the screen to switch between °F and °C. 2.3.10 Temperature Recall This mode displays the most recently completed predicted temperature.
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DEVICE VERSION The display will show “X.X”, where “X.X” is the device software version number (i.e. 1.0). This is helpful when discussing operation with Welch Allyn Customer Care. ALGORITHM The display should show “X.X” where “X.X” is the mode Software Version (i.e. 7.5).
Instrument Security Security options include two different electrical security options that alarms after a user designated number of temperatures is reached or when the unit is removed from the wall holder (Model 692 only). A mechanical security option is also available to prevent removal of the unit from the wall mount or mobile stand without a special tool.
3. Preventive Maintenance The following preventive maintenance is recommended to maximize uninterrupted service ® with the SureTemp Plus Model 690 and 692 Thermometers. Six-Month Maintenance Units that are in service on a regular basis should have the following preventive maintenance performed every six months: 1.
• Immerse the probe well in mild detergent solution as necessary for cleaning. WARNING: DO NOT use hard or sharp objects to clean the probe well. This could damage the probe well and cause the unit to not function properly. WARNING: DO NOT use steam, heat or gas sterilization on the thermometer or probe.
Calibration Testing Whenever the clinical accuracy of the thermometer is in question, verify the instrument calibration. Your hospital biomedical department should establish a routine schedule for verifying instrument calibration. It is recommended the unit be tested semi-annually. 3.5.1 Cal-Key Verification This method uses a fixed value to verify that the device is calibrated properly.
11. Lift the rubber flap on the Model 9600 Calibration Tester and insert the probe fully into the small hole on top of the tester. 12. Wait two (2) minutes for the probe temperature to fully stabilize. 13. The temperature should read between 105.7ºF/40.9ºC and 106.3ºF/41.3ºC. 3.5.3 Model 9600 Plus Calibration Tester Verification This method is used to verify the calibration of the unit and probe at three set point temperatures 36.0ºC (96.8ºF), 38.5ºC (101.3ºF), 41.0ºC (105.8ºF).
4. Troubleshooting Verify your Biotech Mode settings (page 11) to verify your device is configured properly. If the device accuracy is in question, refer to the Calibration section on page 16. If the above two tests do not help or cannot be done, read through the following to help diagnose the unit.
4.1.3 Patient Temperature Out of Range Patient Temperature Out of Range errors occur when the patient temperature is above 110.0° F or below 80.0° F. During this error, the entire body (head, torso, and legs) displays by blinking with a solid up or down arrow and a thermometer bulb.
If the problem persists replace the probe. E0.8 EEPROM CRC Failure Verify that the batteries are fresh. (EEPROM is corrupted.) 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 Try another predict cycle.
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Move into an area where the temperature is between 50ºF/ high. 10ºC and 110ºF/43.3ºC and allow the thermometer to stabilize to ambient temperature. If problem persists replace the probe or contact Welch Allyn Customer Care. Ambient temperature too Move into an area where the temperature is between 50ºF/ low.
Field Serviceable Repairs The only operations that are performed by field personnel are calibration verification, probe or probe well replacement, battery replacement, and unit replacement. Field Serviceable Parts The following parts are serviceable by qualified technicians. Note: The following parts list is current as of the date of publication. Parts and part numbers ®...
5. Theory of Operation Technical Overview ® The SureTemp Plus Model 690 and 692 are portable, battery powered thermistor-based medical grade thermometers that perform oral, axillary, and rectal measurements using high- speed prediction modes. The devices perform a power-on self test (POST) when battery power is applied. POST checks the internal hardware, and tests the stored calibration values to verify that the factory calibration is intact.
5.1.1 Temperature Probes Model 690 and 692 Thermometer probes are configured at the factory to be Oral/Axillary or Rectal probe types. The probe contains a thermistor, a heater resistor, and an EEPROM. Table 5- 1: Probe Parts Probe Part Description Thermistor The Thermistor is used to sense patient temperature.
Appendix A Specifications 50.0 °F to 104.0 °F (10.0 °C to 40.0°C) Ambient Operating Temperature Range Operating Altitude -557 ft. to +16,000 ft / -170m to +4877m 80.0 °F to 110.0 °F (26.7 °C to 43.3 °C) Patient Temperature Range Temperature Predict Time* Oral: Approximately 4–6 secs.
Welch Allyn. Loss or damage in shipment shall be at the purchaser’s risk. Welch Allyn will not be responsible for loss associated with the use of any Welch Allyn product that (1) has had the serial number defaced, (2) has been repaired by anyone other than an...
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