Spot Vital Signs Service Manual - Frank's Hospital Workshop

More documents

Recommendations

Info

32 Troubleshooting Welch Allyn Spot Vital Signs Table 11. Temperature Malfunction Possible Cause Explanation Corrective Action No temperature displayed Probe not replaced Replace probe in holder prior to taking another temperature. Table 12. SpO 2 Malfunction Possible Cause Corrective Action Sensor in place but no SpO 2 on display Table 13. Device Does Not Turn On Insert the patient’s finger completely into sensor. Verify blood pressure and SpO 2 measurements are not taken on the same extremity. Verify the sensor cable is correctly plugged into device. Verify you are using the correct sensor. Use only Masimo or Nellcor SpO 2 sensors and accessories with the Welch Allyn Spot Vital Signs with Masimo or Nellcor configurations, respectively. Possible Cause Explanation and Corrective Action Low battery Check connections between device and transformer, and transformer and wall receptacle. Device not powering up Unplug unit from wall receptacle and check for breaks in cord. If connections are secure, check electrical outlet. Charging indicator is on if connections are good and the device is plugged into a working outlet. Notify biomedical department or Welch Allyn Technical Support. Table 14. Blood Pressure Cuff Too Tight (Over Inflation) Possible Cause Explanation and Corrective Action Pressure preset too high Check default Pressure Preset setting in internal configuration mode. Unless patient has underlying systolic hypertension, set pressure preset at 160 mmHg. (If systolic blood pressure greater than pressure preset, the device automatically increases an additional 40 mmHg.) Table 15. Blood Pressure Cuff Pops Off Possible Cause Explanation and Corrective Action Inappropriate blood pressure cuff size Blood pressure cuff applied inside out Table 16. Blood Pressure Cuff Deflating Too Slowly Determine blood pressure cuff size with the blood pressure cuff markings. If blood pressure cuff continues to pop off, notify biomedical department or Welch Allyn Technical Support. Re-apply blood pressure cuff. Make sure Welch Allyn label is facing away from arm. Possible Cause Explanation and Corrective Action Normal operation Typical time to take a reading is 20 to 45 seconds; 165 seconds is the maximum. Pressure preset too high Check default pressure preset setting in internal configuration mode. Patient movement Have patient sit still. Do not have arm tight against chest wall, as respiration may affect speed and accuracy of blood pressure measurement.
Service Manual Troubleshooting 33 Table 16. Blood Pressure Cuff Deflating Too Slowly Possible Cause Explanation and Corrective Action Small leak in pneumatic system Battery voltage check 1. Follow the steps in “Connections” on page 25. 2. Set the power supply to 6.5 Vdc (+0/-0.25 Vdc). 3. Use a DMM to check the battery voltage. If the voltage is less than 6.0 Vdc, charge the battery. If an E38 error is present on Version 1, the battery does not charge correctly. Clear the error and then proceed. To charge the battery, place the battery back into the Spot Vital Signs and connect the charger for 8 hours. Let the device sit idle for one day and recheck the battery voltage. If the voltage is below 6.0 Vdc, replace the battery (see “Battery removal and replacement” on page 70). 4. Power on Spot Vital Signs. If the device does not power on: a. Verify the power supply is connected to the device and turned on. b. Change the main PCB (see “Main printed circuit board assembly” on page 44). c. Change the display PCB (see “LCD disassembly” on page 42). Window display check 1. Press the Power button to start the Spot Vital Signs. 2. Observe the Spot Vital Signs window display and verify the LED segments light up for one to two seconds before the device enters the normal operating mode. If there any segments that do not light, change the window display (see “LCD disassembly” on page 42). Blood pressure calibration check Check blood pressure cuff tubing and pressure hose for leaks. Perform two or three blood pressure cycles to verify proper cuff inflation/deflation and the readings. If Spot Vital Signs does not inflate or deflate properly perform the following procedure. 1. Open the Spot Vital Signs housing (see “Front housing and key pad disassembly” on page 42). 2. Check Spot Vital Signs for pinched tubing and reroute if necessary. Re-run the blood pressure cycle to confirm the problem is fixed. If there are no pinched tubes, change the valve (page 48).
Page 1: Welch Allyn Spot Vital Signs Servic
Page 4 and 5: ii Welch Allyn Spot Vital Signs Cop
Page 6 and 7: iv Welch Allyn Spot Vital Signs
Page 8 and 9: vi Contents Welch Allyn Spot Vital
Page 10 and 11: viii Contents Welch Allyn Spot Vita
Page 12 and 13: 2 Introduction Welch Allyn Spot Vit
Page 20 and 21: 10 Overview Welch Allyn Spot Vital
Page 30 and 31: 20 Functional overview Welch Allyn
Page 36 and 37: 26 Calibration Welch Allyn Spot Vit
Page 38 and 39: 28 Calibration Welch Allyn Spot Vit
Page 40 and 41: 30 Troubleshooting Welch Allyn Spot
Page 50 and 51: 40 Disassembly and repair Welch All
Page 62 and 63: 52 Technical overview Welch Allyn S
Page 64 and 65: 54 Technical overview Welch Allyn S
Page 66 and 67: 56 Field replaceable units Welch Al
Page 68 and 69: 58 Field replaceable units Welch Al
Page 70 and 71: 60 Specifications Welch Allyn Spot
Page 80 and 81: 70 Maintenance Welch Allyn Spot Vit
Page 82 and 83: 72 Maintenance Welch Allyn Spot Vit
Page 84 and 85: 74 Repair test specifications Welch
Page 86 and 87: 76 Repair test specifications Welch
Page 88 and 89: 78 Supplies and Accessories Welch A
Page 90 and 91: 80 Supplies and Accessories Welch A
Page 92 and 93:
82 Supplies and Accessories Welch A
Page 94 and 95:
84 Miscellaneous Mounting Accessori
Page 96 and 97:
Page 98 and 99:
Page 100:
90 Warranty Welch Allyn Spot Vital
show all

Spot Vital Signs Service Manual - Frank's Hospital Workshop

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?