Testing Water Gauge

[rushdriver]

Has anyone any ideas how I could test my water gauge across the entire range rather than putting the sensor in a cup of boiling water and seeing were the guage reads? I was thinking about getting a theremometer and putting it into the water pipes of my Dax?


Cheap if poss!

Cheers

John

[chief-0369]

put a thermometer in a cup of cold water, place the temp guage sender in the water and measure the difference between the two as you heat it.

[GreenV8S]

I guess you could dilute boiling water with room temperature water to bring the temperature down to a known level, if it's that important to calibrate the whole gauge? (Isn't it enough to know it is accurate at the top end of the scale where all the interesting things happen?)

[jamesstibbards]

I've got one of those food industry electrical thermometers with a small needle point probe. It will push through water hosing quite easily but ideally a piece which can be trimmed back because it leaves a small hole. It accuratly measures up to 200 0c and showed that my SW gauge over reads by about 5 degrees . Can't remember where I got it from but I'm sure they're not too pricy from any decent electrical wholesaler.
good luck
J

[Avocet]

cooking "toffee" thermometers go beyond boiling point don't they? I think they're quite cheap.

[tigerk]

borrow another guage which is known/believed to be correct and wire them both in, then view them side by side?

idea courtesy a mechanic of 40 years experience, (not me)