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2440 Idle Time

Models 2400, 2401, 2410, 2420, 2425, 2430, 2440, 6430
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GeoffRivers
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Joined: January 28th, 2014, 8:39 am
Country: Canada

2440 Idle Time

Post by GeoffRivers » February 18th, 2014, 11:38 am

Hi,

We have a Keithley 2440 source meter. If the unit is on and warmed up, but the leads are off (the unit is idle and is not applying power or sensing), how long can the unit be left on without needing to worry about a loss of accuracy or incurring wear.

Obviously the unit should be shut-down whenever possible, but we are curious about this idle-state.

Thanks, I know it's an unusual question.

Dale C
Keithley Applications
Keithley Applications
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Re: 2440 Idle Time

Post by Dale C » February 19th, 2014, 8:02 am

I leave my 2400 powered up for weeks at time.And have neve noticed any issues.
This unit, the 2440 should be the same.
They are designed to operate for one year until the one year calibration cycle is passed.
Even then it will still operate, just not be in calibration.
But you could leave it powered on and in "idle" indefinitely.

GeoffRivers
Posts: 5
Joined: January 28th, 2014, 8:39 am
Country: Canada

Re: 2440 Idle Time

Post by GeoffRivers » February 19th, 2014, 11:21 am

Excellent. I thought this would be the case, but it's good to have it confirmed. Thanks Dale!

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