3M 718 static sensor product bulletin 用户手册

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Hand-held static sensor locates and measures
static voltages and tests air ionizers.
The 3M
TM
718 Static Sensor can help companies competing
in the global high-tech marketplace prevent costly losses due
to electrostatic discharge (ESD) damage by playing a vital
and valuable role in their own ESD control program. Easy to
use, the hand-held 718 Static Sensor is designed to measure
static voltages on objects and surfaces arising from
electrostatic charge buildups, and can help identify ESD
trouble-spots — ensuring product reliability and customer
satisfaction which translates into company profits. As a
bonus, when used in conjunction with the 3M
TM
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
lightweight 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
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 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).
Accuracy
The 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 distance 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
provides a convenient hook-up, via a 3/32 inch (2.5 mm)
monophone jack, to a recorder/data acquisition console.  
The 718 Static Sensor may then be used for remote
monitoring or permanent recording of electrostatic 
voltage readings.
3
718 Static Sensor
718A Air Ionizer Test Kit
718 Range Finder Unfocused
718 Range Finder at 1" away
3M 718 Static Sensor
1
2
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