Q = CV / A

Here, C: the charge amount of the capacitor (F) = 0.1 × 10-6 (F)

V: Voltage reading of potentiometer (V)

A: friction area of ??sample (m2) = 0.25 × 0.25 (m2)

1, connecting the Faraday tube and the amount of charge measurement device: the end of a dedicated cable connected with the input of the charge meter connected to the other end of the Faraday tube with the outer cylinder of the socket connection.

2, turn on the charge amount of the tester power - the power switch up to the "1" position.

3, press the "clear" button, so that the charge meter shows the number is zero.

4, with a roller friction machine friction test, immediately after the end of the friction with the insulation rods into the Faraday tube tube inside the tube. In this process the specimen and other objects should be kept above 300mm.

5. Read the reading on the charge quantity measuring device.

1, the system of Faraday tube outer cylinder should be reliably grounded.

2. Clear the charge amount measurement unit before each measurement.

3, the measured object must be measured from the power supply.

4, before the test, please turn on the power switch to make the machine warm up for 15 minutes.

5, voltage / current generator is not to sell goods.

Voltage meter (R8240): 1 set

Capacitor: 1 set

Cable (A01009-200): 1 root

Connection cable (A01009-50): 1 root

Power supply-type strip in addition to the electrode: 1 root

Friction abutment / ground pad (nylon friction cloth): 1 set

Insulated rods (20Φ x 500L mm acrylic clear fiber): 1 root

Certificate of proof of voltage meter (traceability): 1 book