Do you know that YOUR resistor has 2 ppm/deg C drift, or is that the maximum allowable for the part number? Many times they perform BETTER than specified.
-----Original Message----- From: volt-nuts <[email protected]> On Behalf Of Dr. David Kirkby Sent: Tuesday, June 25, 2019 7:51 AM To: [email protected] Subject: [volt-nuts] How should I clean a 400 k ohm resistor? 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-acquis ition-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. -- Dr. David Kirkby, _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/volt-nuts_lists.febo.com and follow the instructions there. _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/volt-nuts_lists.febo.com and follow the instructions there.
