3M 718A Manuale d'uso - Pagina 5

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2.3 The 3M

Static Sensor 718 has a Low Battery

™

indicator. Once the battery is depleted to

approximately 6.5 volts, the instrument will

show BAT in the display. At this time, the

Static Sensor 718 will not produce accurate

results and the battery should be replaced.

2.4 The 3M

Charger 718A also has a low battery

™

indicator. This is an LED located at the left-

hand side of the unit. When the battery voltage

drops below operating level, the LED will light

up. At this time, the user shouldreplace the

battery. Usage of the Charger 718A under low

battery conditions would lead to insufficient

voltage levels being generated.

3.0 Operation of the Static Sensor 718

Supplemental notes:

For accurate measurements during

usage, it is recommended that the

outside housing of the Static Sensor

718 be connected to an electrical

ground. This can be accomplished

by having the user holding the instrument

connected to ground through either a static

control wrist strap, or while wearing static

control footwear. The enclosure of the

Static Sensor 718 is made of conductive

plastic and is, therefore, electrically

connected to whomever is holding the instrument. In addition, ground for the

instrument can be provided through the Voltage Monitor Output on the front of

the case.