I've read that ethanol, specifically not the denatured type, makes a
good cleaning fluid for precision electronics. In the US this can be
purchased as 'everclear' in very high proof values in liquor stores.
The added bonus is if you ruin your instrument, you don't have to go
anywhere. You have a supply of liquor on your bench!
Anyway, this may be worth reading about...
Dan
On 6/25/2019 12:00 PM, [email protected] wrote:
Message: 1
Date: Tue, 25 Jun 2019 12:50:49 +0100
From: "Dr. David Kirkby"<[email protected]>
To:"[email protected]" <[email protected]>
Subject: [volt-nuts] How should I clean a 400 k ohm resistor?
Message-ID:
<canx10hbmdyg1gmpxxu7etieemrd5_ijr5fvwkpa1mpgnkr-...@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"
I want to change a 400 k ohm through hole resistor in a HP 34970B data
acquisition unit
https://www.keysight.com/en/pd-1000001313%3Aepsg%3Apro-pn-34970A/data-acquisition-data-logger-switch-unit
The resistor is only 1% tolerance, but has a temperature coefficient is 2
ppm/deg C. Once the instrument is calibrated, changes in the value of this
resistor will mess up the resistance measurements on the data acquisition
unit.
What is the best way to fit the resistor in such that there are not any
avoidable changes in value?
I did think of cleaning the resistor with IPA once it Is soldered in, but
IPA readily absorbs water, so I am concerned IPA this will leave residual
around.
Dave.
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