![Tonghui Electronics TH9110 Скачать руководство пользователя страница 6](http://html1.mh-extra.com/html/tonghui-electronics/th9110/th9110_operation-manual_1126462006.webp)
◇
6
5)
Do not use the tester in locations affected by strong magnetic or electric fields. Operation in a
location subject to magnetic or electric fields may cause the tester to malfunction, resulting in
electrical shock or fire.
6)
Do not use the tester in locations near a sensitive measuring instrument or receiver. Operation
in a location subject, may cause such equipment may be affected by noise generated by the
tester. At a test voltage exceeding 3 kV, corona discharge may be generated to produce
substantial amounts of RF broadband emissions between grips on the test lead wire. To
minimize this effect, secure a sufficient distance between alligator clips. In addition, keep the
alligator clips and test lead wire away from the surfaces of conductors (particularly sharp metal
ends).
7)
There is a cooling fan at the rear of the tester, with right and left cooling vent, preventing
internal temperature rise affecting accuracy, please make sure the tester is well ventilated.
8)
Please do not turn on/off the power repeatedly. After turning OFF the power switch, be sure to
allow several seconds or more before turning it ON again. Do not turn on/off power switch
repeatedly, if you do this, the protectors of the tester may not be able to render their protective
functions properly. Do not turn OFF the power switch when the tester is delivering its test
voltage, you may do this only in case of emergency.
9)
During the normal operation, please use INTERLOCK to ensure the safety. When using this
tester in a cramped working space, make a box-like structure for the DUT; when testing a
complicated large-scale DUT: provide a cover or other means for the DUT to prevent electric
shock, cutting off the output when the cover is opened. It is also recommended that an
enclosure be provided around the operating area and that output be cut off every time the door
is opened, to keep the workplace safe and secure.
1.3 Volume and Weight
Dimension: 430mm (W)*132mm (H) *500mm (D)
Weight: 21kg
1.4 Safety Requirements
This tester is class I safety instrument.
1.4.1 Insulation Resistance
Under reference working condition, insulation resistance between power terminal and the shell is not
less than 50M
;
Under wet and hot transport condition, insulation resistance between power terminal and the shell is
not less than 2M
;
1.4.2 Insulation Strength
Under the reference working condition, the withstanding rated voltage between the power supply
terminal and the shell is 1.5kV, AC voltage with frequency of 50Hz for 1 minute, no breakdown and
arcing.
1.4.3 Leakage Current
Leakage current is not greater than 3.5mA.