User manual

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www.bkprecision.com
Electrical Testers
Digital Milli-ohm Meter
The 310 digital milli-ohm meter is used to
ensure continuity and integrity of a wire,
cable, conduit, or any electrical connection.
The 310 has a display resolution of 100 µΩ
and include a professional 4-wire Kelvin test
lead set to ensure accurate readings. The
heavy duty case comes with a convenient
shoulder strap and has a rubber seal to make
the unit water resistant.
Digital Earth Resistance Meter
The 309 digital earth resistance meter (also
known as an earth ground meter) is a small,
compact, battery-powered, professional
meter that is easy-to-use and invaluable
to electricians and contractors who need
to ensure the "ground" quality and
effectiveness of buildings, structures,
equipment or electrical systems. A good
earth ground is required for new buildings
or structures needing to pass required
electrical codes. Older buildings can lose a
good effective earth ground connection over
time or after being struck by lightning.
True RMS AC/DC Power Clamp Meter
The 325 AC/DC true RMS power clamp
meter provides safe, non-invasive measure-
ments of up to 400 kW, 400 A AC, and meas-
ures up to 600 V AC/DC utilizing the pair of
standard test leads. The lightweight,
portable, battery-powered clamp meter
measures parameters needed to
troubleshoot residential and small
commercial electrical systems such as ACV,
DCV, ACA, DCA, Ω, W, frequency and
continuity.
Specifications 325
DC Cur rent
Range 400 A, 600 A
Resolution 0.1 A, 1 A
Accuracy
1.5% + 5 digits
2% + 5 digits
AC Current (True RMS : From 10% to 100% of Range)
Range 400 A, 600 A
Resolution 0.1 A, 1 A
Accuracy
40 Hz- 65 Hz 2.0% + 5 digits
65 Hz - 1 kHz 3.0% + 8 digits
Model 309 Model 310 Model 325
Features & Benefits
■ Measure earth resistance (20/200/2,000 Ω
ranges)
■ Measures earth AC voltage to 200 VAC
(40 to 500 Hz)
■ Timed function test turns output off after
a 3 to 5 min continuous test
■ 2 mA measuring current permits earth
resistance testing without tripping circuit
breakers
■ Data hold
■ Auto power off
■ IEC / 61010 CAT III 200 V / CE
Features & Benefits
■ Four-wire Kelvin lead measurements
■ Overvoltage and overtemperature
protection
■ 5 ranges with 100 µΩ max resolution
■ Water resistant case with shoulder strap
■ Auto power off
■ IEC / EN 61010-1 / CE
Features & Benefits
■ 3 ¾ digit backlit LCD display
■ Auto range
■ Auto power off
■ Data hold
■ High speed digital bargraph
■ Jaw opening 1.37" (35 mm)
■ IEC / 61010 CAT III 600 V / CE
The HV-44A is a self-contained instrument
that measures high DC voltages up to 40 kV.
This probe is typically used to measure high
voltages in TV sets, power supplies,
laboratories and other general high voltage
commercial applications.
40 kV High voltage probe meter