静电测试仪使用说明书

3

718 Static Sensor

718A Air Ionizer Test Kit

1

3M 718 Static Sensor

Hand-held static sensor locates and meas-ures static voltages, tests air ionizers.New from 3M,competing in the global high-tech marketplace prevent cost-the 718 Static Sensor can help companiesly losses due to electro static discharge (ESD) damage byplaying a vital and valuable role in their own ESD controlprogram. Easy to use,is designed to measure static voltages on objects and sur-the hand-held 3M718 Static Sensorfaces arising from electrostatic charge buildups,help identify ESD trouble-spots — ensuring product relia-and canbility and customer satisfaction which translates into com-pany profits. As a bonus,3Mwhen used in conjunction with theTMused to verify the operation of air ionizers.Model 718A Air Ionizer Test Kit,the 718 can also be718 Static Sensor Features

• Small-size,• Membrane switches for Power,lightweight,conductive plastic housingRange/Zero,and Hold • Digital,functions.

LCD (liquid-crystal) display is easy to read and • Ranging system assists user in making quick and easy updates quickly.

• Measurements accurate to 5%

measurements

• Output jack available for continuous measurementsConvenient Size/Low Power RequirementsThe 718 is small enough to be carried in a pocket and

weighs less than 5 oz. (142 g),weight plastic housing is conductive,including battery. The light-grounded user to dissipate all electrostatic charges from theallowing a properly-surface of the meter.Meter Functions

The meter is equipped with three membrane switches whichcontrol different functions. The POWER switch turns theinstrument on and off. The RANGE/ZERO button performs

two functions; when pressed momentarily it switches

between the two measurement ranges of 0-2,000 volts and 0-20,000 volts,resets the voltage display to 0 volts. The HOLD buttonand if held for longer than 3 seconds,itallows the user to freeze a measurement on the LCD for later review.Ranging System

Included with the 3M 718 Static Sensor is a ranging systemconsisting of two light-emitting diodes (LEDs) which eachemit a circular red light onto the surface being measured forstatic. When the two lights intersect and form a singlefocused light,1 inch (2.54 cm).

the measurement distance is the prescribed 2

3

718 Range Finder Unfocused

718 Range Finder at 1" away

Accuracy

The Model 718 Static Sensor is accurate to within ±5% ofthe displayed measurement,(2.54 cm) from the target. Accuracy will vary as the dis-at a distance of one inch tance between measured object and instrument changesfrom 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,monophone jack,The 3M 718 Static Sensor may then be used for remoteto a recorder/data acquisition console. via a 3/32 inch (2.5 mm)monitoring or permanent recording of electrostatic voltage readings.

3M 718 Static Sensor Specifications

Dimensions0.85" (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 batteryPower RequirementsOne 9-volt alkaline batteryMeasurement Ranges

0 – 2 kV Low Range0 - 20 kV High RangeVoltage Display3) digit liquid crystal displayVoltage 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 distanceMeasurement AccuracyWithin 5% of actual voltage CertificationsUL,C-UL,CE,CB-scheme,NOM