3M 718A specifications Ranging System, Static Sensor Features, Meter Functions, Accuracy

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718 Static Sensor

718A Air Ionizer Test Kit

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3M 718 Static Sensor

two functions; when pressed momentarily it switches between the two measurement ranges of 0-2,000 volts and 0-20,000 volts, and if held for longer than 3 seconds, it resets the voltage display to 0 volts. The HOLD button allows the user to freeze a measurement on the LCD for later review.

Ranging System

Included with the 3M 718 Static Sensor is a ranging system consisting of two light-emitting diodes (LEDs) which each emit a circular red light onto the surface being measured for static. When the two lights intersect and form a single focused light, the measurement distance is the prescribed

1 inch (2.54 cm).

Hand-held static sensor locates and meas- ures static voltages, tests air ionizers.

New from 3M, the 718 Static Sensor can help companies competing in the global high-tech marketplace prevent cost- ly losses due to electro static discharge (ESD) damage by playing a vital and valuable role in their own ESD control program. Easy to use, the hand-held 3M™ 718 Static Sensor is designed to measure static voltages on objects and sur- faces arising from electrostatic charge buildups, and can help identify ESD trouble-spots — ensuring product relia- bility and customer satisfaction which translates into com- pany profits. As a bonus, when used in conjunction with the 3MTM Model 718A Air Ionizer Test Kit, the 718 can also be used to verify the operation of air ionizers.

718 Static Sensor Features

•Small-size, lightweight, conductive plastic housing

•Membrane switches for Power, Range/Zero, and Hold functions.

•Digital, LCD (liquid-crystal) display is easy to read and updates quickly.

•Ranging system assists user in making quick and easy measurements

•Measurements accurate to 5%

•Output jack available for continuous measurements

Convenient Size/Low Power Requirements

The 718 is small enough to be carried in a pocket and weighs less than 5 oz. (142 g), including battery. The light- weight plastic housing is conductive, allowing a properly- grounded user to dissipate all electrostatic charges from the surface of the meter.

Meter Functions

The meter is equipped with three membrane switches which control different functions. The POWER switch turns the instrument on and off. The RANGE/ZERO button performs

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718 Range Finder Unfocused	718 Range Finder at 1" away

Accuracy

The Model 718 Static Sensor is accurate to within ±5% of the displayed measurement, at a distance of one inch

(2.54 cm) from the target. Accuracy will vary as the dis- tance between measured object and instrument changes from the one inch (2.54 cm) specification.

Analog Output Jack

The analog output jack located in the front of the unit pro- vides a convenient hook-up, via a 3/32 inch (2.5 mm) monophone jack, to a recorder/data acquisition console. The 3M 718 Static Sensor may then be used for remote monitoring or permanent recording of electrostatic voltage readings.

3M 718 Static Sensor Specifications

Dimensions	0.85" (H) x 2.4" (W) x 4.15" (L)
	2.2 cm (H) x 6.1 cm (W) x 10.5 cm (L)
Weight	4.5 oz. (128 g) with battery
Power Requirements	One 9-volt alkaline battery
Measurement Ranges	0 – 2 kV	Low Range
	0 - 20 kV	High Range
Voltage Display	3) digit liquid crystal display
Voltage Output	1/1000 of measured voltage
	@ low range
	1/10,000 of measured voltage
	@ high range
Distance Indicator	LED targets. Aligned targets indicate 1 in.
	(2.54 cm) measurement distance
Measurement Accuracy	Within 5% of actual voltage
Certifications	UL, C-UL, CE, CB-scheme, NOM