Braun Thermometer Not Turning On
Yogprasad Moneta
If you take the temperature of another person, the ExacTemp light can be of help. It flashes during the measuring process as long as the probe is correctly positioned, and lights up continuously when the thermometer detects that an accurate reading has been taken.
Normal body temperature is a range. The following table shows that ranges of normal also vary by site. Therefore, readings from different sites, even if taken at the same time, should not be directly com-pared.
The Braun ThermoScan thermometer has been carefully developed for accurate, safe and fast human body temperature measurements in the ear. The shape of the thermometer probe prevents it from being inserted too far into the ear canal which could perforate the tympanic membrane.
For your Braun ThermoScan PRO 4000, there is a Base Station available. Contact your distributor for details (see inside cover).
The station automatically recharges the thermometer (when using the rechargeable batteries supplied with the base station), and it has an electronic, individually adjustable anti-theft function. It also serves as a convenient storage base (can be wall mounted). It requires returning the thermometer to the station within an individually pre-selected time. Otherwise the thermometer will be locked. When leaving the factory, the anti-theft function of the PRO 4000 is turned off. If the anti-theft function is enabled, and when not in the measuring process (stand-by mode) the thermometer will show the hours remaining before it is locked. To turn on the anti-theft function, please refer to the base station manual.If the thermometer shows RET (without the battery symbol) on its display, the anti-theft time has elapsed and the thermometer must be returned to the station for unlocking.
If the anti-theft function is not enabled, the display will show off when in standby mode.
Braun ThermoScan probe covers are intended for single use only! To ensure accurate readings, always use Braun ThermoScan disposable probe covers with the PRO 4000 thermometer. Damaged, perforated, or soiled probe covers can lead to inaccurate temperature readings. Additionally, the accuracy of your temperature readings can be affected by damage to the probe window, or the presence of dirt or cerumen on the probe window.To assure a high level of accuracy, it is very important to keep this window clean, dry and undamaged. Fingerprints, cerumen, dust and other soiling compounds reduce transparency of the window and result in lower temperature measurements. If the thermometer is accidentally placed in the ear without a probe cover installed, the window must be cleaned immediately. Additionally, the window and/or probe tip area should never be modified, changed, or adjusted. These changes will affect calibration and accuracy of the thermometer.To clean the window, gently wipe its surface with a cotton swab slightly moistened with isopropyl alcohol and immediately wipe dry with a clean cotton swab. After cleaning, allow at least 5 minutes drying time before taking temperatures. Make sure probe window is clean and dry. Avoid touching the window except when cleaning is required. If the window is damaged, the thermometer must be returned to Welch Allyn for service.
Note: Do not use any chemical other than isopropyl alcohol to clean the probe window.Thermometer
Use a soft cloth slightly moistened with isopropyl alcohol to clean the thermometer display and exterior. As needed, clean the thermometer and probe with a 70% isopropyl alcohol solution or a 10% chlorine bleach solution or a nonstinging disinfectant such as Avicide or its equivalent. Do not use abrasive cleaners. Never submerge the thermometer in water or any other liquid. Store thermometer and probe covers in a dry location (the thermometer is not protected against ingress of water), free from dust and contamination and away from direct sunlight. The ambient temperature at the storage location should remain fairly constant and within the range of 50 F to 104 F (10 C to 40 C).Trouble-shooting
To protect the environment, dispose of empty batteries according to national or local regulations.The thermometer is supplied with two 1.5 V batteries type AA (LR 6). For best performance, we recommend Duracell alkaline batteries. Insert new batteries when the battery symbol appears on the display.
To open the battery compartment, depress the button in the door as shown using a pen or other pointed object, while lifting the door. Remove the batteries and replace with new batteries, making sure the poles are in the right direction. Slide battery door back until it snaps in place.CalibrationThe thermometer is initially calibrated at the time of manufacture. If the thermometer is used according to the use instruction, periodic readjustment is not required. However, Welch Allyn recommends checking calibration on an annual basis or whenever clinical accuracy of the thermometer is in question. Procedures for checking calibration are outlined in the 9600 Plus Calibration Tester (REF 01802-110) directions for use manual.The above recommendations do not supersede the legal requirements. The user must always comply with legal requirements for the control of the measurement, functionality, and accuracy of the device which are required by the scope of relevant laws, directives or ordinances where the device is used.
Manufacturing date is given by the LOT number located on front of the product. The first three digits give the day of the year manufactured. The second two digits give the year of manufacture. The last six digits represent the serial number of the device.An example: LOT 27710KTC this product has been manufactured on the 277 day of the year 2010.Special situationsClinical studies have shown the Braun ThermoScan thermometer can obtain accurate temperature measurements on full term new-born, paediatric and adult patients. However, there are special situations when an ear thermometer should not be used. These include, but may not be limited to the following situations:
We have a Braun Thermoscan infra-red (IR) thermometer that has been working perfectly for about five years. It started complaining about low batteries and shutting off, despite me replacing with new batteries that I checked had plenty of charge.
When I opened it, I discovered that the batteries connect to the circuit board via simple metal clip contacts, and that the contacts had some corrosion on them, which was preventing power from getting to the board, hence why it was complaining of low batteries.
This image above also shows the contact points on the circuit board for the battery connection. This is where some corrosion had formed, and I could remove it simply by scraping lightly with a small screwdriver (the corner of a scourer would also have worked).
Same problem here with the bent contacts for the battery not making contact. Love this thermometer but being an electronics engineer and looking at the circuit board and overall design of how it powers up I agree with the comment that the design is poor for expecting a long term product life.
Our thermoscan had been working well, but I am not 100% sure if it is me or just in daylight (I tried using in a dark room). But the light stays on until the moment it gets a reading and then the backlight turns off immediately. Bit of a pain as that is when you want the backlight on! Anyone had similair problem? Also I put cheap coles batteries into it, but they are brand new, so still should be fine?
Hi Kevin, im having the same battery problem as yours in the same model. Trying to follow your fix, trying my best to open it, but once the screw is out, i dont know how to open it further. Im stuck. Can u pls help. Would love for u to put up a utube video so its easily follow able.
Wow, thanks Kevin, I followed your very helpful instructions and it solved the problem I was having with our 10-year-old Braun thermometer. Your instructions are quite clear and, in my opinion, better than following a YouTube video.
Thank you! You have been great help. Was kind of sad when I just could not get the Thermoscan 6022 to start up after changing batteries. Then I stumbled upon your article, followed your instructions and now it is working again.
Thanks Kevin as I followed your advice and my 6020 seems to be working again. It was saying lo then hi. I changed the batteries and then just got a constant error message or a reading of 41c! I was just about to throw it out when I found your advice. Followed it and it is working and giving realistic reads again. Thanks so much.
If soldering is not possible, then perhaps you could very carefully bend the clips (only a small amount) so that they rest on a slightly different part of the copper pad. Alternatively, kitchen foil could be used to increase the surface area of the clip.
Thank you so much for sharing this. I bought my thermometer in the US (I live in Korea) about 5 years ago and it stopped turning on recently. I thought I was going to have to shell out $100 for a new one here but I found your fix and it worked like a charm. Definitely good to have during this flu/corona virus season!
My approach would be to lightly tin what remains of the tab, and tin some multi-core wire. Then solder the tinned threads to the pad and snip them to leave fresh points of contact. You have to take a lot of care with damaged pads, not to rip them up.
The little red pin is essentially a push-button that should push in easily when the ear protector is attached. If yours is not pressing in, then it must be obstructed somehow. I would first try wiggling it carefully, to see if it could be freed up (tweezers might help).
My Thermoscan was coming up with the POS error all the time and when opened up realised the battery connectors were corroded. Scraped all the corrosion off and tried again but still kept giving the error.
It is standard practice for the majority of digital thermometers to display a "LO" sign when turning the device on. This means "LOW TEMPERATURE". This is because these types of thermometers are made to measure Body Temperature, so when outside the body, the temperature is usually LOWER.
c80f0f1006