wavetek datron 1271 help

[GNTechnologies]

Our 1271 recently died after many years of faithful service. I bought a used one which passed self tests ans self cal. Currently it is out for calibration but fails with error s
2253
2273
2283

It looks like the unit has not been calibrated in a long time (years), so the drift rates it wants for a regular cal are making the 1271 mad. I also lost my 1271 calibration manual, so I am shooting in the dark on this one.

Does anyone have the calibration manuals? and anyhelp on the errors?

 

[echen1024]

I would advise asking Wavetek is they still exist, but here is the calibration manual for the 1281. It is at the very end http://measure.feld.cvut.cz/groups/metrology/vybaveni/obr/Datron1281____umeng0000.pdf

I can't find one t=for the 1271, but these 2 are very similar

[starjohn]

Here is the calibration manual definitions of the following error codes.

2253 +10V Ref Magnitude Drift
         Digital comparison of the present magnitude against that recorded at the
         most-recent Internal Source Cal.
Magnitude Drift       0.999940 < drift < 1.000060
       

2273 1V Range Attenuated +10V Ref Magnitude Drift
          Digital comparison of the present magnitude against that recorded at the
         most-recent Internal Source Cal.
+100mV Signal Mag. Drift   +0.999910 < drift < 1.000090

2283 100mV Range - Attenuated +10V Ref Magnitude Drift
           Digital comparison of the present magnitude against that recorded at the
         most-recent Internal Source Cal.
+100mV Signal Mag. Drift     +0.9999< drift < 1.0001