Hello Guest, Welcome to Apnea Board !
As a guest, you are limited to certain areas of the board and there are some features you can't use.
To post a message, you must create a free account using a valid email address.

or Create an Account


New Posts   Today's Posts

[Equipment] CMS50F oximeter locked up - and FIX!
#1
Smile 
While changing some settings in my pulse oximeter it locked up and became totally unresponsive -- freak software glitch I guess. I could have left it on until the battery went dead but that could take quite a while. This model has a non-removable, (well, not intended to be removed) USB rechargeable battery. A small phillips screwdriver allowed me to take the unit apart. I momentarily short circuited where the battery leads are soldered to the circuit board and the unit turned off. Now working normally. I hope this helps somebody.
Post Reply Post Reply
#2
Some batteries have protective mechanisms built in to detect short-circuit conditions and shut down the power cells, but it's not a good assumption. Also the protective circuit could be defective and malfunction at the worst time.

With lithium type batteries especially, shorting could quickly overheat it and lead to fire or injury. The key word in Don's technique, in my opinion, is 'momentarily.'

Good trick, thanks for sharing!

Well-done
Post Reply Post Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
Ohmy Recording Oximeter on sale zzzZorro 1 141 10-01-2017, 05:51 PM
Last Post: pholynyk
  S10 OXIMETER -- EXPERIENCE??? srlevine1 3 256 09-11-2017, 08:33 PM
Last Post: srlevine1
  Advice Needed- Problem With Recording on the CMS 50D + Oximeter nico08 4 209 09-07-2017, 12:08 AM
Last Post: aquanaut20
  What oximeter works with Sleepyhead? kderevan 11 688 09-02-2017, 08:46 PM
Last Post: Spy Car
  s/o Sleepyhead and the ResMed Oximeter (it works!) Spy Car 3 207 09-01-2017, 10:56 PM
Last Post: Spy Car
  ChoiceMMed pulse oximeter readings leo37 2 192 08-27-2017, 08:01 PM
Last Post: trish6hundred
  CPAP user, had my wife try the Oximeter, since she snores. Should she get to a Dr.? mogulman 9 301 08-27-2017, 11:50 AM
Last Post: Sleeprider

Forum Jump:

New Posts   Today's Posts




About Apnea Board

Apnea Board is an educational web site designed to empower Sleep Apnea patients.

For any more information, please use our contact form.