AEMC JM810A User manual
AC Current Probe
Model JM810A
User Manual
DESCRIPTION
The JM810A (Catalog #2110.80) is designed for use in industrial environments. The
“squared” jaws permit multiple conductor or bus bar positioning. The current output makes
it the perfect tool for measurement with DMMs, recorders, and power and harmonic meters.
The Model JM810A is compatible with any AC ammeter, multimeter, or other current
accuracy, use the JM810A with the DMM having an accuracy of 0.75%.
WARNING
■These safety warnings are provided to ensure the safety of personnel and proper operation of the
instrument.
■Read the instruction manual completely and follow all the safety information before attempting to use
or service this instrument.
■Use caution on any circuit: high voltages and currents may be present and may pose a shock
hazard.
■
voltage ratings given.
■Safety is the responsibility of the operator.
■ALWAYS connect the current probe to the display device before clamping the probe onto the sample
being tested.
■ALWAYS inspect the instrument, probe, probe cable, and output terminals prior to use. Replace any
defective parts immediately.
■
INTERNATIONAL ELECTRICAL SYMBOLS
instrument.
Thi
before using the instrument.
DEFINITION OF MEASUREMENT CATEGORIES
CAT IV:
primary overcurrent protection devices, ripple control units, or meters.
CAT III: For measurements performed in the building installation at the distribution level,
CAT II: For measurements performed on circuits directly connected to the electrical
distribution system, such as household appliances or portable tools.
RECEIVING YOUR SHIPMENT
Upon receiving your shipment, make sure that the contents are consistent with the packing
description of any damage.
CURRENT PROBE - JM810A DRAWING
ELECTRICAL SPECIFICATIONS
Current Range:
1 to 2000 A, continuous cycle for the full
temperature range
Transformation Ratio:
2000:2
Output Signal:
1 mA/ A (2 A at 2000 A)
Accuracy and Phase Shift*:
Primary Current 100 A 400 A 2000 A
Accuracy % 2% 1% 0.5%
Phase shift 1.5° 0.75° 0.5°
*(Reference conditions: 23°C ± 3°C, 20 to
85% RH, 48 to 65 Hz, external magnetic
eld <40 A/m, no DC component, no
external current carrying conductor, test
sample centered.)
Load impedance 0.5 Ω.
Overload: 2400 A for 10 min
Accuracy:
Class 0.5 from 48 to 1000 Hz
Frequency Range:
30 Hz to 5 kHz; current derating above
1 kHz for continuous use.
Load Impedance:
Working Voltage:
Common Mode Voltage:
Inuence of Adjacent Conductor:
0.005 A / A
Inuence of Conductor in Jaw Opening:
1% ± 0.1 A of reading
MECHANICAL SPECIFICATIONS
Operating Temperature:
14° to 122°F (-10° to 50°C)
Storage Temperature:
Inuence of Temperature:
<0.1% per 10°K
Jaw Opening: 3.54" (90 mm)
Maximum Conductor Size:
Envelope Protection:
Drop Test:
Mechanical Shock:
Vibration:
Polycarbonate Material:
Dimensions:
Weight:
Colors:
Dark gray handles with red jaws
Output:
5 ft (1.5 m) lead with safety 4 mm banana
plug
SAFETY SPECIFICATIONS
Electrical:
Double insulation or reinforced insulation
between primary or secondary and outer
Common Mode Voltage:
ORDERING INFORMATION
Current Probe JM810A........ Cat. #2110.80
Accessories
Banana plug adapter
(to non-recessed plug)........... Cat. #1017.45
OPERATION
on page 1.
Making Measurements with the AC Current Probe Model JM810A
■Connect the black and red terminals to the Ampere AC range of your DMM or current
measuring instrument. Select the appropriate current range (2 A). Clamp the probe
range until you obtain the best resolution. Read the value display on the DMM and
).
■For best accuracy: carefully center the conductor inside the probe jaw, avoid if possible,
Tips for Making Precise Measurements
■When using a current probe with a meter, it is important to select the range that provides
the best resolution. Failure to do this may result in measurement errors.
■Make sure that probe jaw mating surfaces are free of dust and contamination.
Contaminants cause air gaps between the jaws, increasing the phase shift between
.
MAINTENANCE
Warning
■For maintenance use only original factory replacement parts.
■To avoid electrical shock, do not attempt to perform any servicing unless you are
■To avoid electrical shock and/or damage to the instrument, do not get water or other
foreign agents into the probe.
Cleaning
To ensure optimum performance, it is important to keep the probe jaw mating surfaces
clean at all times. Failure to do so may result in error in readings. To clean the probe jaws,
with a soft oiled cloth.
REPAIR AND CALIBRATION
You must contact our Service Center for a Customer Service Authorization number
(CSA#). This will ensure that when your instrument arrives, it will be tracked and processed
promptly. Please write the CSA# on the outside of the shipping container.
®®
15 Faraday Drive
(Or contact your authorized distributor)
NOTE: All customers must obtain a CSA# before returning any instrument.
TECHNICAL AND SALES ASSISTANCE
use or application of this instrument, please contact our technical hotline:
®®
15 Faraday Drive
LIMITED WARRANTY
The current probe is warrantied to the owner for a period of two years from the date of
®
unit has been tampered with, abused, or if the defect is related to service not performed by
®
Full warranty coverage and product registration is available on our website at:
www.aemc.com/warranty.html.
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