Trying to FIX a Faulty Blood Pressure Monitor
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- Опубліковано 9 вер 2024
- Hi, in this video I attempt to repair a faulty blood pressure monitor purchased from eBay.
Remember that this is just for entertainment and I am not an expert in these repairs. The processes in the video may not be the best way, the correct way or the safest way to fix these things.
I do love fault finding and trying to fix broken things so I hope that comes across in this 'Trying to FIX' series.
Many thanks, Vince.
Next episode: Trying to Fix My Mate VINCE's faulty blood pressure that runs high in his body.
with some of the videos I understand why he has high blood pressure
Hey Vince. As a physician, I can tell you that wrist BP monitors are not recommended for patient use generally due to them being inaccurate as compared to the arm ones. You should use it on your left wrist when possible as you already have, so that's good. However, you also need to have the wrist and arm positioned at the same height as your heart for better accuracy. Also, any arm movements will affect the readings by quite a bit. Majority of the time, they give higher readings than what your pressures really might be at. Good fix! Though, I won't recommend using this to measure your blood pressure routinely unless you can get the technique accurately to perfection without moving your arm and at the same level as your heart. Also, pulses are normal between 60-100, though in athletes it can be normal even in the 50s. But you did know your normal BP readings, which is great!
PS: May be you can get started on them ventilators next ;).
@@FlameBunny No, he is using it correctly, the heartbeat is likely contact pressure detected and there are no main arteries the other side of wrist so any result would be incoherent at best. The cuff is pushing the whole thing in to create a greater pressure than the blood pressure which is why these machines if made well can be good but Chinesium grade ones are not very trustworthy. When done the old way, you inflate and listen in to the arteries usually under the cuff edge on the inside of the elbow.
Thanks for the advice and tips Gopal, I appreciate it :-)
@TheWizard22UK There are several reasons that might be the case and it would be best for you and your doctor to figure out among yourselves. At the top of my head here are some possibilities:
1) Inaccurate calibration of the device - I generally ask my patients to bring their cuff into the clinic to double-check their accuracy with the clinic monitors or my manual check. This is quite common.
2) You may have something called 'White Coat Hypertension' if that's your only machine at home. Essentially, it just means that your pressures in the clinic or hospital are measured higher than at home or other places. I trust that since your doctor gave that advise he or she is likely quite well-versed in ruling this out and may already have.
3) Some medications can cause lower blood pressure at times than other times and you may be measuring at times when the pressure is lowered.
4) You may have vasoconstriction or peripheral vascular disease or other vascular issues beyond the artery running through the arm and it may not show accurate readings. Despite having this, if deemed to be minor and without symptoms, it may not be investigated. You could try your other hand in this case.
Without knowing the medical history, seeing the patient in person and checking the cuff in person, it's had to pinpoint the reason and likely your doctor can answer this question as he or she has this information.
Should I have my fingers outstretched like on the illustration on my device or can I leave them loose. Then the pressure against my tendons curls them in. The result is higher with fingers loose than with fingers outstretched.
I came to this channel ages ago for the video game fixes but now honestly enjoy Vinces random product fixes like this.
8:08 this a solenoid that realizes de air pressure in the end.
The way it works is: It stats to blows air until a defined pressure is reached, the pressure is read by that black sensor, soldered on the board.
Then the solenoid starts to release some of the air pressure, and the sensor starts to read the pulse. The pulse is read by the different pressure it creates when the blood travels.
The high and low blood pressure is redden when the pulse is detected and not detected anymore by a specific pressure .
Great video sir :)
Thanks FixDaily :-)
Sorry Vince but i laughed so much i dropped my coffee now i have a water damaged switch and now my blood pressure gone through the roof.
And my wife said I was being cruel for laughing.
At one point i thought he was going to call for a ambulance.
If you had a plastic bag sealing machine heat press it.
OMG. @ 23:50 when you were reading the results, no one could of stated it better. "Right, a hund.... geez, a hundred forty-nine over 99, over 97 PULSE......AHHH, WOOF well OK. That doesn't seem great - does it .... Hope, I'm hoping that it's a dodgy machine....let me just check my pulse a minute to see if it is that high.". I'm so sorry but the surprise in your voice at that exact moment was priceless. I was in tears from laughing so hard. After checking your pulse with your watch, you found it was in the nineties. Then you triple checked it comparing your wife readings, which by the way resembled a marathon racer, against yours and it was consistent. Some of us don't want to admit our health or our condition of health, you sir are considered to be having borderline hypertension. We know your on the skinny side but,.... come on. That's no reason to think you should be truly healthy for all intense purposes. BUT, you are for all intense purposes, are a healthy person. Take it after resting, you may be surprised.
I truly am a fan now. You're precious cause your down to earth. Keep on trying to fix things, just don't let it get to ya.
To weld plastics like that they use a layer of brown teflon (tape) on the heated elements which pinch the plastic to weld together. This makes the plastic melt together without burning or sticking to the heated elements. So a bit of brown teflon tape on the tip of a clothes iron, a plate of metal also with teflon to put underneath, and you would probably get a neat, factory looking, weld.
Thanks Unimportant :-)
You can buy a spade tip for soldering irons, useful for putting copper braid under to mass clean a motherboard, easy to use that to apply the heat with.
Back in the day, you did it by 10 secs, if it came out high or irregular, you did a 15 secs with the ten secs times'd by six, the 15 secs times by 4 and if that still came in high or irregular you did a full half minute marking each one interval measurement /4 or /6 or /2 with abnormal or worrisome results in red for monitoring. When I was in Southampton after my triple bypass, I beat the blood pressure machine every time, you can "hear" your systolic and dystolic as the machine compresses and releases and I said to the nurse every time the systolic came up then said again when the dystolic faded. I had to show a poor student how to use the stethoscope and spigometer as everyone relied on machines these days and I was drilling the students on pharmacology the same way I was drilled as a student, I even worked local to you Mr V being in charge of a ward over at the old Abbot's Langley hospital or over the road in Leavesden Asylum as I was psych trained and what a creepy ol' place Leavesden was too.
Do look forward to videos from Vince, really like his have a go attitude and to be honest he's getting good at this fix it lark, Keep em coming vince 👍
Thanks mate :-)
If this thing is actually measuring correctly, that would suggest you have Grade 1 Hypertension. I’d suggest getting that checked out by either a certified armband model, or (preferrably) by a doctor.
As a side note, a device that monitors or just generally measures blood pressure is called a “Sphygmomanometer”, which is a combination of a Greek word and a scientific word:
“Sphygmo-” comes from the Greek word “sphygmos”, which means “pulse”.
“-manometer” means “pressure meter”.
So “Sphygmomanometer” literally means “pulse-pressure meter”.
From what I’ve heard from my doctor and cross-referenced on Wikipedia, the method for measuring blood pressure is by using a wrap-around balloon and filling it with air while listening for blood flow with a stethoscope.
The first point (systolic pressure) is taken the moment the doctor starts hearing a “whooshing” sound (or a pounding sound), which is the turbulent flow of blood squeezing through the currently mostly occluded artery.
The second point (diastolic pressure) is taken when that “whooshing” sound (or pounding sound) stops (indicating the artery is no longer sufficiently occluded to produce the sound).
Also, the size of the “balloon” is important, as too small would yield too high a pressure, and too large would yield too low a pressure.
Our blood pressure is one of our four main vital signs, and is of clinical significance:
Too high a pressure could lead to internal bleedings (as the arteries/arterioles/capillaries are *NOT* capable of handling these pressures for extended periods).
Too low a pressure means poor perfusion of blood (keeping blood from passing through the tiny capillaries, especially near our extremities, and especially dangerous if it affects our vital organs).
Hypertension could lead to horrible things like aneurysms (if they burst, you could literally bleed to death!) and stroke (from sudden rupture of a cerebral aneurysm), and while Grade 1 is not an immediate threat, it could grow into one.
If your blood pressure turns out to be normal, then the skies are clear. And the normal level is between 120-129 over 80-84, with the optimal level slightly under 120 over 80 (I’d say minimum 110 over 75).
So, as a subscriber, I feel compelled to send a message on behalf of all your subscribers: *Get your blood pressure checked!*
If the size of the balloon is important then maybe him reducing the size by melting it could account for it reading higher than it should?
Good video Vince. Like someone else mentioned, I would say that the part with wires going to it is a solenoid valve to release pressure and the one opposite is a safety relief valve in case something failed, to prevent over pressuring.
Thanks Byron :-)
I always take at least 3 measurements and then just average them out...You get a bit better idea of the actual numbers ...and stay calm!! lol ..Thanks for the vids Vince..Great fix.
Well done of fixing this one, a plan b for if you ever do something similar, a bicycle inner tube puncture repair kit might work. Depending on differences in material of course. Great video. Thanks
The air balloon is likely made of soft vinyl. An above-ground pool patch kit might be even better since the liners are also vinyl. (Probably enough to fix hundreds.....)
Another excellent repair!! Fantastic idea to fix the balloon! As others have said - the device with the wires, connected to the tubes, is a solenoid. It releases the air after the reading has been taken. Likely just opens a valve.
Thanks Chris for the info. It was an interesting little item on the inside. Still holding pressure OK at the mo. Looking forward to watching your Sega Mega Drive CD repair later :-)
great fix. Please take the readings differently. Put the device on your wrist (as you did) and then wait a couple of minutes. Think peaceful thoughts and relax. Breathing technique is key here. Maybe use the device to test your relaxation method. Get someone else to press the button and dont even look at the device when its working. Please do this 5 times the way you were doing it and then 5 the way I suggested and record the results.
Thanks Emma, I have used it a few times first thing in the morning, before getting out of bed and the figures are a lot lower, sometimes in the normal range. I don't think I am as bad as the monitor made out I was in the video, maybe I had a lot of salt that day, working bent over on the floor, excited by the fix etc. Also if I raise my arm higher and outstretched the figures come down as well.....But I have tried to cut down on the snacky crisp type food (which is hard) and I will keep an eye on the figures. Hope you are keeping well :-)
@@Mymatevince Yeppers. It is taxing on the mind and body this lockdown. Getting through it by watching boxsets and stuffing my face with crisps
Hi Vince. With the blood pressure on the wrist make sure your wrist is at the same level as your heart and that your not holding your breath in anticipation of the result as this dramatically increases the readings. Thanks for the great videos and good health.
Good fix. I tried mending a camp shower bag with melting but the water pressure was too high and a leak returned quite quickly. I expect with this machine, the pressure isnt there for long enough to cause a return of the leak. Our doctor used to say blood pressure is different for everyone and that to test it, you need to be in bed and have the machine run the moment you wake up. So any high readings you get when using one during the day are not your resting heart rate etc and cant be relied upon.
Years ago I had a soldering gun that had a plastic welding tip. The tip was a similar shape to a clothes iron but a lot smaller. The instructions said to use a piece of paper on top of the plastic you were trying to weld.
Thanks PDS, it sounds like the type of thing that would only be used a couple of times a year BUT really handy when needed :-)
@@Mymatevince Yeah I only tried that bit once out of curiosity and never used it again.
if u r concerned about ur BP. i would suggest trying one that goes over the arm first... wrist ones are unreliable by comparison....
Exactly
Vince: There are repair kits for leaking PVC, sold especially for blow up beds. Amazon sells a few. Holes on a seam are a challenge. For PVC, you can repair it with PVC Pipe Cement. That is made by dissolving the PVC plastic in solvents. The solvent mix is THF (tetrahydrofuran), DMF (dimethylformamide) and cyclohexanone. Now they try to replace the expensive cyclohexanone with cheap MEK (methylethylketone) but the original mix works best. At one point you could get the solvent mix to refresh your dried up cement but now they prefer that you throw out as much as possible so they won't supply the solvents. All repairs on a blown shell are challenging. The air pressure tends to open up the patch. Collect a store of flexible PVC film for these repairs and use the cement to cement a patch down.
Wrap the area with tinfoil then use the tip of your iron to seal a semi circle around the area, also changing the volume of the balloon will likely throw it out the calibration. The silver rectangle is a solenoid valve to release the pressure.
Good idea, thanks :-)
The RL component is a solenoid valve RL probably stands for Relay. This valve closes whenever there is power on it so it prevents the air from escaping thus inflating the balloon. When the power goes off it opens and lets the air out, deflating the balloon.
Nice one Thomas, thank you :-)
Hello there, I own one of those device and, if used correctly they are, for the price, quite precise. The readings should be done with the arm not resting down (on leg or table or whatever) but the machine has to be at the hight of the heart (arm close to the breast). The last measures were done with the wirst at least 20 cm down the heart. For my experience it makes difference. Wishing you my best i suggest a better reading (with a professional machine) and a medical consult if pressure gets high. By the way i had my minimal at 110 for a while! I had to take pills!
Hi Vince, as you said at the end I would think that one item is the air release valve, and the round white object could be an air filter for the incoming air.
Have you booked a doctor appointment for hypertension ?
No, not yet. I will try to sort it out with diet first :-) I have taken multiple readings since and sometimes it is in the normal range :-)
@@Mymatevince take krill oil does wonders for high blood pressure
Thank for sharing my blood pressure monitor have the same problem like your..I will fix it tomorrow if God spares my life..stay bless..🙏💯🌹🙋♀️💝
Vince, you've made my day, as I thought MY blood pressure was a bit on the high side but, compared to yours, it appears to be fine!
With regard to the components inside, you identified the motor and air pump and the pressure sensor but the tubular white thing located over the vent holes in the case is a one-way valve to allow air into the pump but not back out again. The square metal thing marked as RL on the PCB is a solenoid operated release valve to slowly reduce the pressure in the cuff in order for the measurement to be made. Goob luck with you healthy diet, although you should really see your GP for an accurate analysis of your health!
Another great fix we need more often
The brass looking part is much likely a solenoid valve that opens and releases the air after the measurement is done.
Black square thing: pressure sensor, analog type. Other big thing: solenoid valve. The whit cylinder lets slowly escape the air on a constant rate. How it works: balloon gets inflated until pressure reached. The white cylinder lets slowly the air escape. Every heartbeat the pressure varies ever so slightly. The difference between some heaps is calculated to get the blood pressure. When measurement is finished the solenoid releases the remaining air.
Thanks Florian for the breakdown of the workings :-)
I nearly choked on my tea when I saw the blood pressure:) It's worse than mine!
Awesome. I didn't think you could do it, but you've found a new health and safety risk to expose yourself to. I only watch these videos, because I'm sadistic, and I know there is a high probability, that you will electrocute, burn, decapitate, or blow yourself up. Now you've added stroke/heart attack to that list. ;) I hope you survive, because I love your videos mate. Keep 'em coming. :)
Next: trying to fix MRI machines 😂
Really enjoyed this one vince great work 🙂
I’ve got to be honest when I got the notification on this I did have a little chuckle. Next video mymatevince cures covid19. Love it 👍💪
If you measure you pulse and blood pressure while you are trying to fix something it will be higher than normal.
This is probably the truth here!
Never take a reading after gaming... Wait 15 min.
Hi, You could try heating the spatular, or heat a metal bulldog clip, so it will clamp it, cover it with rubber glue.
Good fix, Vince. I don't know if it matters for the pressure measurement, but I think you put the device on your wrist upside down every time. I think the lettering should not be upside down for you to read when wearing it. That would also appear to match the pictures in the box.
The brass thing is a solenoid the other is most likely a filter.
You should try and use a product called sugru has a 'soft touch' or slightly flexible, grippable texture similar to features commonly found in soft overmolds. It is waterproof and dishwasher-safe, and the material is thermally insulating, with a service temperature range between −50 and 180 °C (between -58 and 356 °F or 223 and 453 K).
Yes, maybe you need to think about trying to fix yourself by making use of your hour a day 'permitted exercise!'
Good fix on that blood pressure monitor, my mum had a similar one years ago, I always wondered how it worked, basically it's a tiny air compressor. I'm wondering if the accuracy has been affected due to the volume of air being slightly less in the little balloon thing, after you melted it together.
What an interesting nice little fix.
Your wife is finally got in on a video lol if only it was her hand and arm.. Great video by the way, Keep up the hard work doing videos for your fans
I would have tried using a piece of kapstan tape. Fold it over on itself so the sticky sides stick together, and the only exposed areas of the tape are not sticky. Lay the kapstan over the hole on the bladder and melt the hole with the soldering iron, so the heat transfers through the kapstan to melt the rubber / vinyl on the other side.
Vince, you said at the beginning of the video that you already had a blood pressure monitor. Have you tried comparing the reading of that one with this one?
That one way to fix it. Btw, thing like motor which had two white wire. It called solenoid valve or valve relay.
Pre- Hypertension before you start worrying use the good machine sit still for 5 minutes and no talking your bp will most likely be fine. (I'm a nurse) your pulse always fluctuates and under 100 is fine. Great fix as always though.
Nice one Vince
Nice fix! Time to a nother 30day chalange?
Thank you!
Take care of yourself mate. You do spend a lot of time making vids. Family and health first! 😊
When I was in high school my heart rate was consistently 50 bpm. Now I'm 50 something, 40 pounds overweight and it's up to 75. I thought 75 was high. If your heart rate and pressures stay consistently high, try intermittent fasting techniques, fast walking, and a Keto style diet.
But first try a different blood pressure monitor.
Interesting video as always! :-D
Fitness is something you have to keep up all your life, once upon a time I used to run 10 miles a day, could run with a pack for 30 miles, super fit and super strong then kids came along and less and less time to do the essentials which led to couple years back a full on 8 and half hour operation to replace three very clogged arteries, still waiting to have two more done they forgot to do at the time. Thing is, every person on my ward was the same, ex forces, ex super fit, let it go and ended up needing bypass surgery.
I’m your biggest fan
I have used on of these for years, my pressure has always been low, 110 over 84, pulse at 94 recently it's been 115 over 85 pulse 95, I'm 51, and am a smoker, wife is simular, I go to the doctor, and it's always been 120 over 80 with a pulse of around 82, normal for me, so you have to remember to calculate the difference between doctor, and home wrist device, and you come out right, us English are always nervous, and you have to take that into account with the pulse.
That was jammier than a jammy Dodger🤞🤔🙂 cool video mate.
I was told by a nurse that between 60-100BPM is OK, any higher things are on the sketchy side.
Unless your exerting yourself. Especially exercising.
I have no idea about this kind of apparatus, but could the fact that the balloon became a bit smaller affect the result perhaps? A comparison with another device at the same time would tell more.
But his wife got normal blood pressure reading
I have a rite aid that as soon as I put batteries in or plug in the power adapter is automatically starts pumping and don't stop.
I also have a wrist one that has a leak like that one did.
I thought for a second we might see "Mrs Vince"?? But just an arm.. Lol
I have always wondered what Mrs Vince looks like, I imagine her as somewhat distraught, frazzled hair with frustration as Mr V fixes his way round Electronics Mountain in the garden or navigates Switch glen in the spare room and I suspect the kids all hide their toys as they become suspiciously broken whilst at school with a cheery "Don't worry kids, I can fix it..." Years ago, the Chinese and Taiwanese all had a problem with e-waste, not now since they erected a shrine to Mr V, "in Vince we trust" they say every day, the patron saint of broken things everywhere...
Everyone else: There is a pandemic going on! Practice social distancing!
Vince: Let me put my mouth on this USED blood pressure monitor and blow
Not sure about the UK but you could get a comparative result from a pharmacy? Might just be worth a check up, even if it is indicative.
is a selenoide valve to alow the pressure drop slowly, you can try those machines that seal plastic bags to seal the blader . ps sorry the bad english
Thanks Bruno :-)
Good job. I bought a brand new one from Lidl for £10 recently though
Use a pool patch for the leak or use putty and let it dry or jb weld or rubber cement
Best thing you could've used on it is a picture repair kit piece 👌
Maybe you could check your pressure when you're relaxed, like watching TV? Knowing the quality of these devices, they probably cause a lot of people to unnecessarily worry. My device failed exactly the same way.
The stress of killing all those switches is getting to you.
If you had a vacuum sealer you could use it to seal the seam.
great video as always
Thanks for the support :-)
Ya cud try an airbed patch. It might work. If u get a other one like this.
Hey Vince I have a broken laptop. I was wondering if I could send it to you to see if you can fix it. The fault with it is it does not charge. I have had it cleaned because it was very corroded by the charge port.
@Petraplexity I didn't ask you.
@@alloy0455 No.
@@andymouse I didn't ask you
Be interesting see the comparison on your other BPM to check the accuracy
Look into atherosclerosis. The food you eat regularly will cause and issue with blood pressure (cholestorol+sugar). Also not exercising regularly. It is very possible to have a bp like that since you were probably a bit excited by making this video. Some people have a very overactive nervous system and get high bp and high pulse very easily.
Super Glue brand Vinyl and Leather Mender would probably work great for this. It's available here in many $1 stores. Amazon also has it.
12:45 - I considered that quite a brave move, you never know what contaminants got in there!
Ideally, to seal rubber you would need to place it between 2 hotplates and put pressure on it. I remember my father had tire fixer that worked that way. It was back in Ukraine, I am not sure of they have such things nowadays.
Except it's not rubber it's vinyl, but he could have used a repair kit for inflatable toys/boats
@@Thelostgoldhunters Thats true. However same principle applies. I am guessing its just the matter of timing and temperature.
You were doing it incorrectly. Wrist position is crucial when using this type of gauge. You need to sit at a desk, hold your back straight, elbow on the desk and hold your wrist at heart level. Do not move your arm at all. Then it will measure OK. Lower than heart = higher reading, higher = lower reading. Even small movements and placement errors affects it a lot. Nice video none the less!
I have something like this and if I had a broken one like yours I'd make a teenie tiny air compressor.
how does the rectangular micro air pump work. where does it draw air
Why didn't you compare it to your blood pressure monitor?
Wrist monitors are notoriously inaccurate, so I wouldn’t be too worried about that high reading. They always tend to run high for me too.
A while back when these things first started popping up all the clinics switched over to them, but they soon found out they’re unreliable and now most places have switched back to arm machines or the good old fashioned manual pump ones.
Hey Vince, maybe I'm wrong but couldn't the reading now be inaccurate due to the fact that the final volume of the balloon changed (though slightly) as a consequence of the fix?
a very nice fix, i actually wondered why you didn't use a innertire repair kit, it containes patches and flexible glue and is made to hold pressure afterwards. (or am I realy getting old and the only one remembering those simson kits for your bike in a little purse under the seat?)
Cheers Etienne, I do have a puncture repair kit (got it from the £1 shop). I didn't think it would work around the edge because I thought the air would escape along the seal. If the hole was in the middle I would have definitely used it :-)
My Mate VINCE now that makes perfect sense haha. Yeah on the edge it might not have worked.
When doing blood pressure, it should be done 3 times as the first can be high to anxiety of expecting the worst, this is why some doctors will do 3 takes as you relax for each or to get an average.
9:39my naught da lips round there SNORT LOL
Hello , the square block is a solenoid to release the pressure , My Mate VINCE the male seamstress 😂 Great video 👍 , I had one that the lcd ribbon cable broke and there was no way to fix it 😢
Haha, yeah my sowing needs a little attention :-) Thanks AR :-)
@@Mymatevince 😂 ,posted 2 hour video today hope you have a look at it 🤦♂️
@@AnonymousRepair 2 hours!!! You beaten my record👍👍👍
@@Mymatevince 😂
The cylinder is the senor for heart rate
You should use plastic sealer.
Here come all the UA-cam-doctors... :)
I wished I'd watched this video before I ordered a new monitor. The strap got pulled off and disconnected from the main unit on the old one - and I couldn't get it back together (and fit the little pipes correctly)...
👌 fantastic
Nice fix! another one where I was yelling at the computer... You DO engage the viewer, which is good.... Heh heh!
I'm guessing if you sat in a proper chair, turned off the camera, did a little deep breathing, the numbers would come down.... There's always some level of "attention" shall we say, with the camera on, and you're trying not to sound stupid, or say the wrong thing, and stick to your "script" to some degree, and say what you wanna say... Which is all stressful, and that will elevate the heart rate and bp....
There is actual research, sometimes called "white coat syndrome", where the anxiety of being in the doctor's office, raises your numbers. You can get a machine for your home, that will give a printout. If your doctor/cardiologist is any good, they will take that into account, if you bring in 15 slips from home and say look, at home, my BP is fine... So, it's not a big leap, to say okay, the anxiety of working with the camera on, could cause a rise in those numbers....
The parts inside, the pump pumps it up... and then something has to release the air very slowly, so that the sensors can pick up where the diastolic and where the systolic is.... That's how it gets those numbers...
You might try moving it around on your wrist also, just getting the sensor properly positioned could make a big difference.... If the sensor is having trouble picking up your pulse, both numbers would be higher....
Anyways, I could bore you with heart nonsense all day. After you get your first stent put it, you get very very interested in what those numbers are telling you... hahahaha! Great job on the fix.
Hi Vince, how does the one you fixed compare to your one when taken blood pressure? Are they both reading around the same?
You use it other way around, you should normally read numbers.
But aren't the microchips made to read on the exact size of the balloon? By heating it wouldn't you change the size that way making the reading incorrect?
Maybe, or does it just read the pressure and stop the inflation when a certain pressure is reached :-)
My doc said to not use wrist BP machine not very accurate
I'm thinking if you are consistently pulling 100bpm, you really need to see a doctor as leaving it will only make matters worse, hypertension, tachycardia, two things not good to ignore and it could be a simple thing like needing a blood pressure tablet once a day for a bit or something to pull your heart rate down. Mine without tablets is 120bpm hence being put onto tachycardia tablets and since then my blood pressure dropped into quite good results, less strain on the heart.
Cheers Ian, I will try to sort out my diet first, and if it doesn't improve then I will see the doc when things get back to normal :-)
I'd have put a bit of kapton tape over it to stop the soldering iron sticking to the plastic.
The plastic ist just disintegrating. If you fix one hole, it will rip somewhere else when it builds up the pressure.
Sir my BP set after generating pressure cannot produce result in correct digit form it shows falce digit or incomplete digits y