Operation and Setting
2-5
■ Be sure to use correct fuse when switch the power source.
(3) AC LINE: AC Power Socket and Fuse Holder
It is a three-pin power socket and a fuse holder. AC power is inputted from this socket to
supply the AC source needed by this instrument. For detailed usage and specification of
fuse, see Chapter 3 Installation and Maintenance.
(4) EARTH GROUND TERMINAL: Terminal Grounding for Safety
Use appropriate tools to ground this terminal surely. If it is not grounded surely, when the
power circuit or any other devices connection short-circuited with the ground terminal, the
instrument chassis may contain high voltage. This is very dangerous as it may cause
electric shock if anyone touches it under the situation; therefore, it is necessary to
connect the ground terminal to earth assuredly.
(5) CONTINUITY CHECK: Ground continue measuring and current output terminal
This function is for detecting ground continues of DUT grounding terminal.
(6) FAN
The fan is activated simultaneously when the tester is powered on.
(7) Expanded Slot
The standard is 5PIN terminal slot, this slot provides the following functions:
The connection diagram of expanded slot signals is as the following.
START: Input terminal of starting test signal.
RESET: Input terminal of stopping test signal.
COM : Input common terminal of START and RESET signals.
INTER LOCK: Short-circuited these two terminals, then can output high voltage.
(This function is only for installing 5PIN on expanded slot. If this unit is link test
model of 19073 + RS485, these two terminals are short-circuited fixedly.)
(8) HV OUTPUT Terminal
This terminal is the same as HV output terminal of front panel.
(9) Common Test Terminal: RET/LOW
This terminal is the same as common test terminal of front panel.
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