2
the tester is invalid, and my company doesn‟t take the rap. The warrant is invalid either if
you use the components and the accessories which are not accepted by CHANGSHENG
Instrument CO., LTD. If the reprocessed product has already been modified, we will
charge the maintenance costs and we will resume our design.
3.The working platform of testing
(1)Which situations are the best for the worktable?
It is important to select a suitable position for the worktable. So the place should be which
the persons accept the operator far away from. If there is no place like that, you must
isolate the worktable with the other instruments and mark it “Testing High Voltage Field”. If
the worktable is near other worktables, please mark “Danger! High voltage is being tested!
Don‟t stay nearby!”
(2)The input power supply
A good ground is a vital part of the withstanding voltage tester. There is a ground interface
in its back panel. Please check to be sure the ground connection has continuity. The tester
must have the independent switch fixed in well-marked position, and the function of the
switch must be marked. Once the emergency happened, cut off the power source at once,
and then do with matter.
The input power of the tester is designed to be used on AC only. Its range is 220v±10%.
The frequency of the power is 50HZ. If the power in its range is instable, it maybe does
harm to the components inside or cause the tester wrong running.
Note: The fuse in the tester must be a rapid melting model.
(3)The working test board
When tested, the tester must be placed on the worktable, which is the non-conductor.
Don‟t use the conductor between the operator and the tested device. The position of the
operator is appropriate. Don‟t stride the tested device to operate or adjust the tester.
When operating the tester, the testing working field and around it don‟t contain fuel gas or
the inflammable matter which can cause the explosion and fire hazard.
(4)Operator
The electric shock can cause the injury even death to the user when the wrong operation
has been done. So it is important to train the suitable staff to use and operate
the tester. The clothes of the operator mustn‟t contain the metal. And don‟t wear the metal,
either such as the watch, i.e.. The persons who have the heart disease or carries the rate
adjuster mustn‟t operate the tester.
(5)The essential point of safety
①
The operator who is not fit for the job and the person who is incoherent with the job
must far away from the test field.
②
Keep the test field in order and in safety at any time.
Содержание CS2670A
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