3M 718A Руководство пользователя - Страница 8

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Continuous Output: an output jack is

3.7

provided on the front of the 3M

Sensor 718. This output can be used to feed

a continuous signal into a data storage device

for continuous monitoring of measured

voltages. Please use a 3/32 inch (2.5 mm)

mono-phone plug to connect into the output

jack. The output signal is dependent on the

measurement range currently selected. For

the low range, the output signal is 1/1000 of

the measured electrostatic voltage. For the

high range, the output signal is 1/10,000 of

the measured voltage.

Automatic Shut-Off: the Static Sensor 718 will automatically shut-off

3.8

20 minutes after the last switch activity. This is done in order to conserve

battery power. In the event that the user needs to have the unit stay ON

continuously, when turning the unit on press the POWER AND RANGE

switches simultaneously. This deactivates the Automatic Shut-Off

feature. The BAT indicator will then flash three times to indicate that the

automatic shut-off features has been disabled. The Automatic Shut-Off

feature will reset itself the next time the instrument is turned on.

4.0 Operation and Use of the 3M

It is recommended that the user be familiar with ionizer test standards ANSI/

ESD S3.1 and draft standard ANSI/ESD SP3.3 if the Air Ionizer Test Kit 718A is

used to perform verification testing on ionizer performance.

4.1 Assembly: slide the charge plate over the Static Sensor 718 until it stops.

The charge plate slides onto the lower groove,

on the sides of the Static Sensor 718.

4.2 Charging the plate: holding the Static Sensor

718 (with charge plate attached) in one hand,

use the other hand to touch the probe of the

Air Ionizer Test Kit 718A to the charge

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plate. Press either the + button (for a positive

voltage) or the – button (for a negative voltage),

then remove the probe from the charge plate.

Be sure to keep the button pressed while

removing the probe from the charge plate.

The display on the Static Sensor 718 will

Static

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Air Ionizer Test Kit 718A

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