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Thermometers validation
#75507 07/07/20 9:58 AM
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michal1 Offline OP
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Hello
I wanted to purchase devices do validate thermometers - contact, infrared/tympanic and non contact (pyrometers).
Can someone advise me what testing equipment is decent for that pupose (in two dimensions : price and quality...)

I was thinking about these devices:
Welch Allyn 9600 plus - maybe there is something more flexible and less expensive?
VOLTCRAFT IRS-350 - maybe there is something more accurate and more medical-oriented?

Philips
Re: Thermometers validation
michal1 #75512 07/07/20 6:20 PM
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Super Hero
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A good question; and one not easily answered - I doubt that there's an easy "one size fits all" solution.

Did you see this earlier post?

For reference:-

1) Welch-Allyn
2) Voltcraft

To be clear, when you say "validate" do you have in mind "check" (as in, good enough for acceptance testing, and (or) regular PM), or "calibrate" (as in, following repair)?


If you don't inspect ... don't expect.
Re: Thermometers validation
michal1 #75513 07/07/20 8:53 PM
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michal1 Offline OP
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Just check for start, as these devices are rather low cost. Nevertheless they still require quality check.

Is there an often issue that more professional thermometers like Braun and Welch Allyn require calibration for regular annual PM?

Re: Thermometers validation
michal1 #75514 07/07/20 10:06 PM
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First of all, and in each case (manufacturer, model) I would consider the claims made by the manufacturer - that is, how accurate are they supposed to be?

Then I would check a batch at a time; after figuring out a reasonable test based upon what I had available, I would compare them all (and bin any that I found outside of some sort of "standard deviation").

But there again, to be honest, I always had a soft spot for the traditional mercury thermometer.


If you don't inspect ... don't expect.
Re: Thermometers validation
michal1 #75666 10/09/20 11:06 PM
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I’ve had some success with two WA 9600 calibrators Powered by a large 5V usb 10 Ah Power bank, Conducting ward/department calibration Sweep through our trust it certainly lasted a working day with a recharge overnight! Especially when so many have gone missing since last PM.

Re: Thermometers validation
jonbe #75670 13/09/20 5:29 PM
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Interesting ... but I'm trying to work out how the USB Power Bank works into the equation.

Doesn't the WA 9600 prefer mains power? Are you using an inverter? RavPower, Novoo, Litionite, or something similar?


If you don't inspect ... don't expect.
Re: Thermometers validation
Geoff Hannis #75674 14/09/20 12:44 PM
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Hi Geoff I can only speak for our departments Circa 2012 era three examples all require 5V dc @ 2W consumption(I presume on mark/space ratio). But the two units once heated on mains PSU, ran quite happily for eight hours 1Amp (fast) fuse protected as male jacks seem a risk! I believe in 9600 there is a built In undervoltage alarm.
Thanks


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