AEMC INSTRUMENTS SR701 AC Current Probe User Manual
- June 13, 2024
- AEMC INSTRUMENTS
Table of Contents
AC Current Probe
Models SR701 and SR704
User Manual
DESCRIPTION:
The SR701/SR704 (Catalog #2116.29 and #2116.30) are designed for use in
industrial environments. The ergonomic design allows them to easily attach to
cables or small bus bars. The “circular” jaws guarantee a very good accuracy
and low phase shift. The probes have a measurement range up to 1000Arms and
are compatible with any AC ammeter, multimeter, or other current measurement
instrument with an input impedance lower than 5Ω. To achieve the stated
accuracy, use the SR701/SR704 with an ammeter having an accuracy of 0.75% or
better.
WARNING
The safety warnings are provided to ensure the safety of personnel and proper
operation of the instrument. Read the instruction completely.
- Use caution on any circuit: potentially high voltages and currents may be present and may pose a shock hazard.
- Do not use the probe if damaged. Always connect the current probe to the measuring device before it is connected around the conductor
- Do not use on non-insulated conductor with a potential to ground greater than 600V CAT III pollution 2. Use extreme caution when clamping around bare conductors or bus bars.
- Before each use, inspect the probe; look for cracks in housing or output cable insulation.
- Do not use clamp in wet environment or in locations that hazardous gases exist.
- 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 is a type A current sensor. This symbol signifies that application around
and removal from HAZARDOUS LIVE conductors is permitted.
DEFINITION OF MEASUREMENT CATEGORIES
CAT II: For measurements performed on circuits directly connected to the
electrical distribution system.
Examples are measurements on household appliances or portable tools.
CAT III: For measurements performed in the building installation at the
distribution level such as on hardwired equipment in fixed installation and
circuit breakers.
CAT IV: For measurements performed at the primary electrical supply (<1000V)
such as on primary overcurrent protection devices, ripple control units, or
meters.
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.
ELECTRICAL SPECIFICATIONS
Current Range:
1mA to 1200A AC
Transformation Ratio: 1000:1
Output Signal: 1mA AC/A AC (1A AC at 1000A)
Accuracy and Phase Shift*:
Accuracy: 1mA to 100mA: ± 3% Reading ± 5mA
0.1 to 1A: ± 2% Reading ± 3mA
1 to 10A: ± 1% Reading
10 to 100A: ± 0.5% Reading
100 to 1200A: ± 0.3% Reading
Phase Shift:
1mA to 100mA: Not Specified
0.1 to 1A: Not Specified
1 to 10A: ≤ 2°
10 to 100A: ≤ 1°
100 to 1200A: ≤ 0.7°
*Reference conditions: 23°C±3°K, 20 to 75% RH, 48 to 65Hz, external magnetic field <40A/m, no DC component, no external current carrying conductor, test sample centered.
Load impedance ≤ 1Ω.
Overload: 1200A for 40mn on, 20mn off
Accuracy: Per IEC 185
Frequency Range: 30Hz to 5kHz; current
derating above 1kHz
using the formula:
Load Impedance: 5Ω max
Working Voltage: 600V CAT III
Common Mode Voltage: 600V CAT III
Open Secondary Voltage: < 25V by limiting circuit
Influence of Adjacent Conductor: < 1mA/A AC
Influence of Conductor in Jaw Opening: 0.1% of reading
Influence of Frequency:
From 30 to 48Hz: < 0.5% of R
From 65 to 1000Hz: < 1% of R
From 1kHz to 5kHz: < 2% of R
MECHANICAL SPECIFICATIONS
Operating Temperature: 14° to 122°F (-10° to 50°C)
Storage Temperature: -4° to 158°F (-20° to 70°C)
Influence of Temperature: < 0.15% per 10°K
Influence of Humidity: From 10 to 90%: 0.1%
Jaw Opening: 2.25″ (57mm) max
Maximum Conductor Size: 2.05” (52mm)
Envelope Protection: IP 40 (IEC 529)
Drop Test: 1m (IEC 68-2-32)
Mechanical Shock: 100g (IEC 68-2-27)
Vibration: 5 to 15Hz, 0.15mm (IEC 68-2-6)
15 to 25Hz, 1mm
25 to 55Hz, 0.25mm
Polycarbonate Material:
Handles: ABS Grey and
Lexan 500R, Red: UL94V0
Jaws: Lexan 500R, Red: UL94V0
Dimensions: 4.37 x 8.50 x 1.77″ (111 x 216 x 45mm)
Weight: 1.21 lbs (550g)
Output: SR701: Two standard safety banana jacks (4mm)
SR704: 5 ft (1.5m) lead with safety 4 mm banana plug
SAFETY SPECIFICATIONS
Electrical:
Double insulation or reinforced insulation between the primary or secondary
and the outer case of the handle conforms to IEC 1010-2-032.
Common Mode Voltage:
600V Category III, Pollution Degree 2
Dielectric Strength:
5550V, 50/60Hz between primary, secondary and the outer case of the handle
Electromagnetic Compatibility:
EN 50081-1 Class B
EN 50082-2 Electrostatic discharge
IEC 1000-4-2
Radiated field IEC 1000-4-3
Fast transients IEC 1000-4-4
Magnetic field at 50/60 Hz IEC 1000-4-8
ORDERING INFORMATION
AC Current Probe SR701 ………….. Cat #2116.29
AC Current Probe SR704 ………….. Cat #2116.30
Accessories:
Lead, set of 2, 5ft Safety Leads
(1000V CAT IV) ………………………….. Cat#2152.24
Adapter BNC (Male) –Banana (Female)
(XM-BB) (600V CAT III) ……………….. Cat#2118.46
Banana plug adapter (to non-recessed plug) ………………… Cat #1017.45
OPERATION
Please make sure that you have already read and fully understand the WARNING
section on page 1.
Making Measurements with the AC Current Probe Model SR701/SR704
-
Connect the black lead of the current probe to “common” and the red lead to the AC current input on your DMM or other current measuring instrument. Select the appropriate current range (2A AC range).
Clamp the probe around the conductor to be tested with the arrow pointed toward the load. If the reading is less than 200mA, select the lower range until you obtain the best resolution. Read the value display on the DMM and multiply it by the probe ratio (1000/1). (If reading = 0.659A, the current flowing through the probe is 0.659A x 1000 = 659A AC). -
For best accuracy, avoid if possible, the proximity of other conductors which may create noise.
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 primary and secondary. It is very critical for power measurement.
MAINTENANCE
Warning:
- For maintenance use only original replacement parts.
- To avoid electrical shock, do not attempt to perform any servicing unless you are qualified to do so.
- 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, use
very fine sand paper (fine 600) to avoid scratching the jaw, then gently clean
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.
Chauvin Arnoux®, Inc. d.b.a. AEMC® Instruments
15 Faraday Drive
Dover, NH 03820 USA
800-945-2362 (Ext. 360)
603-749-6434 (Ext. 360)
[email protected]
(Or contact your authorized distributor)
NOTE: All customers must obtain a CSA# before returning any instrument.
TECHNICAL AND SALES ASSISTANCE
If you are experiencing any technical problems, or require any assistance with
the proper use or application of this instrument, please contact our technical
hotline: 800-343-1391 •
508-698-2115 •
[email protected]
LIMITED WARRANTY
The current probe is warranted to the owner for a period of two years from the
date of original purchase against defects in manufacture. This limited
warranty is give® n by A EMC
Instruments, not by the distributor from whom it was purchased. This warranty
is void if the unit has been tampered with, abused or if the defect is related
to service not performed by AEMC® Instruments.
Full warranty coverage and product registration is available on our website
at: www.aemc.com/warranty.html
Please print the online Warranty Coverage Information for your records.