Installation And Maintenance; Notices For Installation - Chroma 19071 User Manual

3.

Installation and Maintenance

3.1

Notices for Installation

This instrument generates high voltage output up to 6KV for external test. Any incorrect or
mistaken procedures in using this instrument may cause injury or death. Thus for your safety,
be sure to read through the notices described in this chapter and memorize them to prevent
any accidents from happening.
Induction and electric shock
■
To avoid electric shock, we suggest you to put on the insulation rubber gloves before
performing any electricity related work.
Grounding
■
There is a safety grounding terminal at the instrument rear panel. Ensure to use
appropriate tools to connect the grounding terminal surely. If it is not grounding correctly,
the chassis of test machine may contain high voltage when the power circuit or the
connecting line of any devices short-circuited with the grounding terminal. This is very
dangerous as it may cause electric shock if anyone touches the instrument under the
circumstances. Therefore, it is necessary to connect the safety grounding terminal to
earth correctly. See section 2.2 Rear Panel for detail information.
Connecting test cable to the "Common Test Terminal"
■
Please connect the test cable to "Common Test Terminal" actually. Always check if the
test cable is connected properly during test. When you need to connect the test cable to
the unit for test, use the one on Common Test Terminal first to connect the DUT. It is very
dangerous if the test cable on Common Test Terminal is not connected completely or
loose as the entire DUT may contain high voltage. Refer to section 2.1 Front Panel.
Connecting test cable to the "High Voltage Output Terminal"
■
Follow the procedures below to connect the high voltage output line after the "Common
Test Terminal" is connected.
•
Press [STOP] button first.
•
Ensure the DANGER indicator is off.
•
Short circuit the "Common Test Terminal" test cable and "High Voltage Output
Terminal", and ensure there is no voltage output.
•
Last, connect the "Common Test Terminal" test line to the DUT and then the high
voltage test cable to the DUT.
•
Plug in the high voltage test cable to the "High Voltage Output Terminal".
End test
■
When tests are done and the test instrument is not in use or need to leave for a while
during usage, make sure to turn off the power switch (to O). See section 2.1 Front Panel
for detail information.
Dangerous places when the instrument is in test mode
■
It is very dangerous to touch the area with high voltage such as the DUT, test cable,
probe, and output terminal when the instrument is in test mode.
 DO NOT touch the alligator clip as shown below on the test cable when the
system is in test mode as the rubber insulation is not good enough and may
Installation and Maintenance
3-1