First, basic necessary instrument
The usual survey static electricity main basic
parameter has three, the static electricity voltage (position),
electric charge quantity (density) and resistance (rate). The
electric charge quantity is the static electricity essence physical
quantity, must survey the electric charge quantity or the
electric-charge density in many scientific research. But in the
very many scenes direct survey electric charge quantity is not
convenient, this time surveys its superficial static electricity
voltage. Very many materials guard against the static electric
properties to prefer through to examine its surface resistance 或体
resistance to appraise the preliminary survey instrument which. any
department should match are the static voltmeter and Gao Zubiao, has the possibility to some to produce the static
electricity object to carry on the periodic inspection. If the
condition permitted, but also should be joined to the static
electricity examination to report to the police the gate () and the
human body comprehensive resistance reflectoscope reflector.
Second, the basis uses the place to choose
Generally in the field use instrument should better be 袖珍?or portable. Its use power source whether battery or do the
alternating current, use the battery to be most convenient. But
mainly is most is good in the laboratory use is the exchange power
supply, avoids frequently trading the battery the trouble.
Regarding uses the battery power supply the instrument to have
to pay attention to it whether has the battery to owe presses the
instruction. When the battery owes presses the instrument
accuracy to have obviously to change the difference. Must pay
attention to its supply voltage regarding the exchange power supply
instrument whether conforms to the local electric power supply
requirement, some have 115/230V the selection switch (for example
EST801 statitron), must inspect the supply voltage selection switch
before the use whether in appropriate position.
Third, the basis uses the place the request
designation
The instrument uses which in the flammable explosive place must
be the explosion-proof, moreover must pay attention to its
explosion-proof rank. Must look whether on the instrument has
the explosion-proof to symbolize and to guard against explosions the
certificate serial number.
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