3M 718 사용 설명서 - 페이지 8

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3M 718에 대해서도 마찬가지입니다: 사용자 설명서 (14 페이지)

5.4 Test fixture:

Metal plate of at least 5 square

inches area (38.7 cm

Metal stand capable of supporting

718, and holding it one inch (2.54

cm) away from the metal plate,

centered.

Connectors on the plate with which

it can interface with the high voltage

power supply.

Connections on the metal stand with

which it can be connected to

electrical ground.

5.5 Procedure:

5.5.1 Place the 3M™ 718 Static Sensor on

the metal stand. Verify that it is

exactly one inch (2.54 cm) away from

the metal plate, and that its position is

centered relative to the plate.

5.5.2 Connect the stand to ground.

5.5.3 Turn on the 718 Static Sensor and

set it to the 2 kV range.

5.5.4 Ground the plate. Zero the display.

5.5.5 Remove the ground from the plate,

and connect it to the high voltage

power supply. Apply a 1 kV charge

to the plate.

) area.

5.5.6 The instrument should now be

reading 1.000. If it is not, remove

the battery door and use a

screwdriver to turn the small screw

located inside the battery

compartment. Use a small

screwdriver to turn the small screw,

located on the front right side of the

instrument. This screw should

adjust the reading on the display.

Once the display has been adjusted

to read 1.000, the low range of the

718 is now calibrated.

5.5.7 Repeat procedures 5.5.2 - 5.5.6 for

the 20 kV range of the meter, using

a test voltage of 5,000 volts.