Case 3:
Medical device:
| Make: | Welch Allyn |
 |
| Model: | Spot Vital Signs | |
| Serial Number: | 200006185-Demo | |
| Applied part type: | BF | |
| Certified by: | ETL (C & US), CSA |
Device problem:
Battery no longer charges
The Welch Allyn Spot Vital Signs monitor has a 6 Volt, 4.5 amp-hour sealed Lead acid battery with external charger (through an AC adaptor). A full charged battery supports 150 typical blood pressure determinations taken at 7 minute intervals. The battery is 90%-100% charged after 12 hours of charging. The battery automatically charges when the Spot Vital Sign is powered through the AC power transformer. The battery charges faster when the instrument is not in operation.
The Error Code C13 refers to the battery failure. If the battery is exhausted and not charging as expected based on manufacturer recommendation Table-5.
| Code | Description | Corrective Action |
| C13 | Battery failure | – Use Wall Transformer
– Replace the Battery |
Battery Removal and Replacement
If necessary, replace the internal battery after heavy use. When the battery no longer charges, remove it and replace it with a battery with the same part number.
To replace the battery:
1- Insure the AC power transformer cord is disconnected from the Spot Vital Signs and that the device is turned off.
2- Use a phillips-head screwdriver to remove the 4 screws holding the battery door. Remove the battery door and expose the battery.
3- Tip the Spot Vital Signs and slide the battery out. Disconnect the in-line connector and discard the old battery per local regulations. Re-connect new battery to unit connector as quickly as possible to prevent loss of power to the unit and subsequent loss of clock time.
4- Attach the battery connector to the new battery as shown:
5- Slide the new battery into the battery compartment as far as it will go. Do not push the connector down into the case or lay it flat next to the battery. The relief pocket in the battery door purposely provides sufficient clearance for the battery connector.
6- Replace the battery door, tightening each of the 4 screws.
7- Connect the AC power transformer to the Spot Vital Signs and allow the new battery to charge for approximately 16 hours. It is possible to use the Spot Vital Signs during this charging period.
