I am trying to calibrate a Solartron 7071 I've been working on.
I set the calibrator to 800V and issued the command:
calibrate,vdc=1000,high=800
but part way through the calibrator went into overload (too much current
drawn).
The calibrator doesn't go into overload when feeding the 3458A.
The calibrate command finished, but now the meter is behaving oddly.
With input values up to 14V DC the correct value is displayed. If I
increase the value above there, I get:
Input Display
15V 1134.061
16V 1209.664
17V 1285.276
18V 1360.867
19V 1436.474 OVERLOAD
calibrate,dump
OK
Vdc calibration constants
-1.78813934E-06
164.781288E-03
-2.92062759E-06
1.64774580E+00
-1.66893005E-06
16.4787127E+00
-2.14576721E-06
164.788683E+00
-2.68220901E-06
1.64800913E+03
Vac calibration constants
326.985921E-03
3.27081809E+00
32.5331218E+00
325.456807E+00
3.27348303E+03
kOhm calibration constants
-1.78813934E-06
166.021009E-03
-2.92062759E-06
1.66000890E+00
-1.66893005E-06
16.6035262E+00
-2.92062759E-06
165.948071E+00
-1.66893005E-06
1.65979766E+03
Top Ohms range calibration constants
-1.66893005E-06
10.0332974E+03
602.359830E-03
Ratio terminals calibration constant
16.4792383E+00
Zener current token value
085
1. Reading that suggests the the 1000V high calibration factor appears
to be in the right "ball park" - confirmation would be good
2. Any suggestions on what's gone awry with the autorange?
3. How to track down the problem that's causing the calibrator
overload.
Has anyone been there, done that? Any suugestions welcome.
Cheers, David
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