Time Electronics 1048 Voltage-Current-Loop Calibrator - Manual (Page 15)

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V1.2 30/12/10 P a g e | 15 1048 Technical Manual
7.
Maintenance
7.1. Recalibration
Calibration equipment required:
A) A precision DC voltage calibrator with an accuracy of 0.01% or better. Examples of
suitable instruments are Time Electronics’ 1017, 5018, 5025 or 5051.
B) DMM with accuracy of 0.01% or better. Examples of suitable instruments are Time
Electronics’ 5075, or 5065.
Note: It is advisable to use leads with low thermal emf connections. This will ensure that
stray thermal emfs do not cause errors when calibrating the low voltage range (.22V) which
has a setting resolution of 10uV.
The unit connected to a Time
Electronics’ 1017 Precision
0.005% DC V & I calibrator.
The unit connected to a Time
Electronics 5065 6.5 digit
Precision DMM