YC-1891 series single-phase EEM calibrator

Technical features:
1) The output voltage, current, phase and frequency can be adjusted
coarsely, intermediately and finely with a 10-key program controlled
keyboard, selecting and combining various calibration points quickly
and accurately. This feature greatly raises the work efficiency.

2) Cooperating with a computer EEM automatic calibration and management
system, it can realize the automation of EEM calibration data management
and output print. Link with the electrical network is also possible.

3) The unique multi-winding voltage-boosting transformer can calibrate
various types of inductive EEM, electronic meter and long-life-tech EEM
online.

4) Automatic switch of output current ranges.

5) The maximum output is capable of implementing simultaneous calibration
of 100 100Ameters.

6) The function of presetting the full range current value increases
the adaptability to calibrate various EEM with different rated current.

7) The change of output voltage phase symmetry from zero load to full
load is less than 0.3?

8) Private microcomputer and feedback sampling circuit make the whole
phase symmetry less than?0.3?

9) Voltage overload and short-circuit protection, current open-circuit protection
and associated audio and visual alarms are provided.

10) Automatic flop of photoelectric head.

11) Automatic color mark sampling.

12) 485 Interface can be selected to calibrate multi-fee-fate and multi-function
EEM.

13) Simultaneous display of errors of 3-4 points.

14) Maximum number of meter hitched: 1-100.