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3M 2009. All rights reserved.
98-0799-0791-5
3
Electronic Solutions Division
Static Control Products
6801 River Place Blvd.
Austin, TX 78726-9000
Ordering information: 1-866-722-3736
Technical support: 1-831-459-7488
FAX 800 626-8893
www.3M.com/static
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Why a Multimeter Won’t Do
A typical multimeter measures resistance by applying DC
voltage to the circuit and measuring voltage drop. Any current
in a ground connection, which is a common occurrence in
a working tool, can easily be factored into calculations and
cause a multimeter to produce an unrealistic result, such as
negative or extremely high resistance.
The 3M Ground Pro Ground Integrity Meter's patented
technology measures ground impedance while completely
ignoring noise and currents on the ground, providing superior
accuracy in difficult conditions especially in use with a
working tool.
Specifications
Ground Impedance
Impedance Range
Automatic auto-zero for test leads
0.001 - 1.999 Ohms
EMI (noise on ground)
Bandwidth
9 kHz - 450 MHz
Measurement Range
-40 dBV ... 12 dBV
10mV ... 4 V
Measurement Type
Average, Envelope Peak
Voltage on Ground
AC (50 - 500 Hz)
DC
0.001 - 250V RMS
0.001 - 350V
Reference
Individual reference setting for each parameter
Hold
Hold, Hold Max
General
Power-Battery
9V Alkaline
Dimensions (approx.)
4.5” x 3.6” x 1.1”
114 mm x 92 mm x 28 mm
Weight
0.33 lbs.
Why EMI?
High-frequency noise (EMI) on a ground affects the operation
of equipment, potentially causing lockups and a variety of
other malfunctions. Sensitive components such as magnetic
heads are also susceptible to damage caused by excessive
noise on a ground. To properly control EMI, one must be
aware of the full range of signals present. The Ground Pro
measures high frequency noise in a wide dynamic range both
average and envelope peak signals. An audio alarm sounds
when EMI exceeds a set level.