Amp Litewire
High Voltage Ammeter Probe
Primary distribution probes for CT ratio testing
Supplies an analog output for waveform analysis
Fiber Optic Isolation cable brings the signal to ground
Compatible with most portable test analyzers
The Amp Litewire is a True RMS high
voltage rated ammeter designed to
measure True RMS curent on the primary
side of a distribution network. The sensor
probe is attached to an insulated hot
stick and positioned onto the medium
or high voltage line. A fiber optic cable
connects the sensor probe to a receiver
unit at ground potential, which delivers
the current waveform measurement as an
analog output to a meter analyzer.
The analog output is a reproduction
of the high voltage current waveform,
accurate to the 50th harmonic, and
available as a 0-2 volt AC signal at ground.
This probe provides utilties the ability
to use one of many sophisticated low
voltage scopes, waveform acquisition
recorders, analyzers, or other analysis
instruments, which are otherwise not
capable of analyzing measurements in
primary distribution and high voltage
The fiber optic cable is physically
rugged, while providing a high speed
data path required for digital waveform
transmission. This cable is also the high
voltage insulator between the two units,
and is specified to provide 100 kV isolation
per foot.
The sensor probe has no moving parts
and does not require clamping onto the
wire. The molded urethane housing is
water resistant and will withstand high
physical impact.
About SensorLink Corporation
SensorLink has engineered and
manufactured live-line meters and
recorders for high voltage applications
for more than 25 years. The SensorLink
current sensor has set the industry
standard for accurate and reliable live-line
Our team is dedicated to design,
manufacture, and sell high quality, easy
to use instruments that provide utility
personnel the confidence to work safely
while making decisions in the field.
Today, thousands of our products are in
service worldwide.
Analyze current waveform from the primary
Allows low voltage analyzers to monitor high voltage waveforms
Amp Litewire
High Voltage Ammeter Probe
Model Number
8-01502 XT
Amp Sensor Opening
2.5 in, 6.35 cm
3.86 in, 9.84 cm
4.8 lbs, 2.18 kg
6.0 lbs, 2.73 kg
1-2000 True RMS Amps
Voltage Environment, phase to phase
up to 433 kV
Voltage Environment, phase to ground
up to 250 kV
± 1%, ± 0.1 millivolt
1-199.9 A
.1 A
200 - 2000 A
Phase Angle
Analog Output
1 mv RMS per amp
Output connector is BNC. No DC offset voltage.
Output impedance
6000 ohms, minimum
Frequency Response
3000 Hz or to the 50th Harmonic
Fiber Optic Cable
40’, 12.19 m
100 kV per foot
Shock & water resistant molded urethane
Universal chuck adaptor (hot stick not included)
Hot stick Mounting
Two each 9V alkaline or lithium; one per unit
Battery Life
Minimum eight hours of continuous use
Operating temperatures
-22° to +140° F, -30° to +60° C
Lithium battery required for use below -4°F (-20° C)
Optional Accessories
Hanger assembly for 8-01502 XT
Hanger assembly for 8-01602
Hard carrying case
1360 Stonegate Way
Ferndale, WA 98248
phone 360.595.1000
fax 360.595.1001
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