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The unit is supplied with a plug fitted to the external interlock socket on the rear of the unit.
The plug contains a shorting link to enable the unit. If external interlocks are used, the
interlocks should replace the shorting link. Please note that the output will not switch on
without either the link fitted in the plug or a closed external interlock circuit.
1.2
Output Voltage Control
The output from the equipment is controlled from zero by means of the output control. To
increase the output voltage turn the control knob in a clockwise direction.
Note:
The output cannot be energised unless the regulator knob is set to zero, thus operating the
zero voltage interlock switch.
1.3
Overload Protection
The equipment is fitted with a fuse and variable overload protection circuits as standard.
1.3.1
Variable overload
The variable overload protection system senses current changes in the high voltage circuit.
The trip levels are adjustable in two ranges each of 6 steps giving 2-12% and 20-120% rated
current.
Unit
KV5-100 mk2
KV3-250 mk2
KV4-300 mk2
KV5-200 mk2
KV6-80
The range change and selector switches are located on the front panel of the instrument.
The circuit will activate when the load current exceeds that set by the trip level selector switch.
WARNING
2, 4, 6, 8, 10, 12mA
5, 10, 15, 20, 25, 30mA
6, 12, 18, 24, 30, 36mA
4, 8, 12, 16, 20, 24mA
1, 2, 4, 6, 8, 10mA
The variable overload trip circuit does not limit the output current.
Trip current ranges
X1
8
X10
20, 40, 60, 80, 100, 120mA
50, 100, 150, 200, 250, 300mA
60, 120, 180, 240, 300, 360mA
40, 80, 120, 160, 200, 240mA
10, 20, 40, 60, 80, 100mA
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