Hello everybody
I've found an issue with my DMM TENMA 72-7755. When external temperature is below around 10=B0C it doesn't power on : LCD begins to lit on but finally slowly stops and the DMM doesn't beep.
Of course battery cell is correct and after a few minutes at higher ambient temperature it runs correctly.
Anybody has the schematic of this device. I guess some capacitor may be particulary sensitive to temperature but without original value I'm sure to replace it.
Thanks in advance
All the digital parts should handle that temperature fine, only the battery (electrochemistry) and LCD contrast (again, electrochemistry) are likely to change.
Keep the DMM inside your jacket until it's time to use it.
All the digital parts should handle that temperature fine, only the battery (electrochemistry) and LCD contrast (again, electrochemistry) are likely to change.
Keep the DMM inside your jacket until it's time to use it.
And then theres the old cold spray method :-)
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