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AEMC instruments SR759 User Manual

Ac current probe

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AC Current Probe
Model SR759
User Manual
DESCRIPTION
The Model SR759 AC Current Probe (Catalog #2116.33) is designed for use in industrial
environments. The ergonomic design allows itm to easily attach to cables or small bus bars.
The circular jaws guarantee a very good accuracy and low phase shift. The probe has four
measurement ranges with the highest range measuring to 1000 A
compatible with any AC Voltmeter, multimeter, or other voltage measurement instrument that
has the following features: Range and resolution capable of displaying 1 mV of output per
amp of measured current; Voltmeter accuracy of 0.75 % or better to take full advantage of the
accuracy of the probe; Input impedance of ≥10 MΩ.
WARNING
The safety warnings are provided to ensure the safety of personnel and proper operation of the instrument.
Read the instruction completely.
ƒ Use caution on any circuit: potentially high voltages and currents may be present and may pose a shock hazard.
ƒ Do not use the probe if damaged. Always connect the current probe to the measuring device before it is
connected around the conductor
ƒ Do not use on non-insulated conductor with a potential to ground greater than 600 V CAT III pollution 2.
Use extreme caution when clamping around bare conductors or bus bars.
ƒ Before each use, inspect the probe; look for cracks in housing or output cable insulation.
ƒ Do not use clamp in wet environment or in locations that hazardous gases exist.
ƒ Do not use the probe anywhere beyond the tactile barrier.
INTERNATIONAL ELECTRICAL SYMBOLS
This symbol signifies that the current probe is protected by double or reinforced
insulation. Use only factory-specified replacement parts when servicing the instrument.
This symbol signifies CAUTION! and requests that the user refer to the user
manual before using the instrument.
This symbol signifies that this is a type A current sensor and that application near
and removal from HAZARDOUS LIVE conductors is permitted.
DEFINITION OF MEASUREMENT CATEGORIES (CAT)
CAT IV:
Corresponds to measurements performed at primary electrical
supply (< 1000 V).
Example: primary overcurrent protection devices, ripple control units, and meters.
CAT III:
Corresponds to measurements performed in the building installation at the
distribution level.
Example: hardwired equipment in fixed installation and circuit breakers.
CAT II:
Corresponds to measurements performed on circuits directly connected to the
electrical distribution system.
Example: measurements on household appliances and portable tools.
RECEIVING YOUR SHIPMENT
Upon receiving your shipment, make sure that the contents are consistent with the packing
list. Notify your distributor of any missing items. If the equipment appears to be damaged,
file a claim immediately with the carrier, and notify your distributor at once, giving a detailed
description of any damage.
continuous and is
RMS

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Summary of Contents for AEMC instruments SR759

  • Page 1 User Manual DESCRIPTION The Model SR759 AC Current Probe (Catalog #2116.33) is designed for use in industrial environments. The ergonomic design allows itm to easily attach to cables or small bus bars. The circular jaws guarantee a very good accuracy and low phase shift. The probe has four...
  • Page 2 ELECTRICAL SPECIFICATIONS 100 A Range Current Range: Primary Current Accuracy % Phase Shift 1 mA to 1.2 A, 0.01 to 12 A, (0.1 to 120) A, (0.1 to 1) A 1 % + 0.2 mV Not Specified (1 to 1200) A (1 to 10) A ≤0.5 % + 0.2 mV ≤2 °...
  • Page 3 OPERATION Make sure that you have already read and fully understand the WARNING section on page 1. Making Measurements with the AC Current Probe Models SR759 ƒ Connect the black and red terminals to the 2 V range of your DMM or voltage measuring instrument.
  • Page 4 Tips For Making Precise Measurements ƒ 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. ƒ 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 primary and secondary.