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Note:
In ohm calibration function, you can differentiate the negative exciting calibration from the left "-" mark on
the lower part. The value of the exciting current is indicated by the digit on the top right corner.(unit :mA)
Make sure to preserve the calibrating value before changing the calibrating point or range. Otherwise, the
previous reading won't be saved if the point or range is changed.
Calibration of the ohm 400Ω and ohm 4KΩ means calibrating all ranges of the RTD.
In 400Ω range resistance calibration:
1) Adjusting of inner variance
Make sure the applied voltage between the H and L terminals is within + 20 uV, when setting 0.00Ωresistance.
If the voltage exceeds the range, the calibrator needs internal adjustment, then contact the vendor from whom
you purchased the calibrator.
2) Noting exciting current of sourcing resistance
Calibration of the 400Ω resistance range requires 2 exciting currents of 0.1mA and 1mA from external
devices, of which the range is calibrated respectively.
10 Replacing Batteries or fuse:
Warning
To avoid possible electric shock, remove the test leads from the calibrator before open the battery door. And
make sure the battery door is tightly closed before turning on the calibrator.
Caution
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