Clean It Up
UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: firefly123 on June 22, 2012, 07:41:47 pm
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how often do you change yours had mine 4 years now just wondering if they go out of calibration
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Why not buy a bottle of calibration fluid and check it.
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But whos gonna check the fluid?
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But whos gonna check the fluid?
;D
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Hi
Mine says calibrate with Sodium Chloride NaCl - Salt.
http://www.theaquariumsolution.com/calibrating-tds-3-hand-held-tds-meter
Granny
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thats good going 4 years, I have always had 2 of them but never lasted 4 years :o
if you think it is out buy another and check against it, I just discard mine and buy another saves faffing about