1 Introduction
2
EJ series
Matsusada Precision
1-4
Precautions for Handling
1. Set the output voltage to
“0” zero. Turn off the HV ON/OFF switch.
2. Check the output voltage with the output voltmeter of the unit.
3. Turn off the POWER ON/OFF switch.
4. Ground the output for more than 10 seconds and check that the output voltage is
“0” zero with
another high-voltage
“HV” voltmeter. It is especially dangerous when a capacitive load is
connected or a long cable is used other than the output cable enclosed with the unit.
5. Touch the load or wiring with your right hand only. Do not use your left hand to avoid serious
damage.
1. For safe operation, be sure to ground the ground terminal of the unit at one point.
2. Make sure to ground properly as shown above. Improper grounding may result in electric shock
or serious damage to the unit.
3. In case a short circuit or discharge of the load is expected, make the ground wire shorter and
thicker.
1. It would be rather safe if the unit is operated on an insulation board, which is withstand the
voltage used.
2. Try to handle the power supply or load with your right hand, and try to keep the left hand, for
example, putting it pocket.
3. Ground the output more than 10 seconds before touching the load after turning off the power
supply even long time has past after turning off the power supply.
1-5
Troubleshooting
In case there is no output voltage
1. Check if the proper input voltage is supplied to the unit.
AC input voltage: rating voltage ±10%, 50/60Hz single phase
Control voltage for external voltage control: 0 to +10V
2. Check that the wire for external voltage control is correctly connected to the control
connector on the rear panel is correct.
3. Check if the option function is properly used based on the instruction manual.
How to GROUND
FOR SAFER OPERATION
Wires should be:
・
more than 5sq
・
less than about 2m
・
No bare wire
Ground
Output cable
Ground terminal
Load frame
Ground at one point
Handy case
Load
Summary of Contents for EJ Series
Page 1: ...Instruction Manual F RA 001 3R3 MODEL EJ series B N 208 9 001 208 9 001 Rev 0 2 ...
Page 8: ......
Page 18: ......
Page 19: ......
Page 20: ......