Atec AEMC-SR651 User Manual
AC Current Probe Model SR651 (pdf) Rev. 03 10/03
Technical Assistance (800) 343-1391 www.aemc.com1of 4
AC Current Probe
Model SR651
The Model SR651 is designed for use
in industrial and utility environments.
The unique ergonomic design allows it
to easily clamp onto cables or small
bus bars. It is built to the highest safety
and performance standards including
the CE Mark and is UL approved.
Excellent transformation and low
phase shift, plus a broad frequency
response, permit accurate measurements of current for power and power
quality measurements. The high
quality magnetic cores and uniform
windings provide sensitivity for very
low level current measurements, as
well as measurements up to 1200A
AC.
The Model SR651 provides an
accurate voltage output of 1mV/A.
This voltage output enables
instruments without current ranges to
measure, display log currents through
an AC voltage range or measure very
low AC.
Features
• Measurement range of
100mA to 1200A
AC
• Large jaw opening accommodates
conductors up to two 500MCM
conductors
• Improved ergonomic design and
easy operation
• Conforms to EN 61010, 600V Cat. III
safety standard
• Low phase shift for power
measurements
• Available with mAor mV
output signals
• Designed for DMMs, recorders,
loggers, oscilloscopes, power and
harmonic meters
• CE Mark
Applications
• Power quality measuring
• Low industrial loads
• Measuring around cable bundles
• Power load monitoring
• Waveform analysis
AC Current Probe Model SR651 (pdf) Rev. 03 10/03
Technical Assistance (800) 343-1391 www.aemc.com2of 4
Specifications
MODEL SR651
ELECTRICAL
Nominal Range 1000A
Measurement Range 0.1 to 1200A
Transformation Ratio Voltage output
Output Signal 1mV/AAC/AAC (1VAC @ 1000A)
Accuracy (1000A Range)
1 to 50A ≤3% ± 0.1A
50 to 200A 1.5% of Reading
200 to 1000A 0.75% of Reading
1000 to 1200A 0.5% of Reading
Phase Shift (1000A Range)
50 to 200A 1.5°
200 to 1000A 0.75°
1000 to 1200A 0.5°
Overload 1200A for 40 min ON, 20 min OFF
Frequency Range 30Hz to 5kHz; current derating above 1kHz using the formula: 1000A x 1/F (in kHz)
Load Impedance 100kΩ min
Crest Factor ≤6
Working/Common
Mode Voltage:
600V Cat. III
Output Termination Jack
MECHANICAL
Operating Temperature -14° to 122°F (-10° to 50°C)
Storage Temperature -4° to 158°F (-20° to 70°C)
Operating Relative
Humidity
0 to 85% @ 35°C
Jaw Opening 2.25" (57mm) max
Maximum Conductor Size 2.05" (52mm)
Maximum Bus Bar Size One 1.95 x 0.19" (50 x 5mm)
Dimensions 4.37 x 8.50 x 1.77" (111 x 216 x 45mm)
Weight 1.21 lbs (550g)
Polycarbonate Material Handles: Polycarbonate + ABS, Gray, UL94 V0. Jaws: Polycarbonate, Red, UL94 V0
SAFETY
Electrical EN 61010-2-032
CE Mark Yes
Note: Reference conditions:
23 ± 3°K, 20 to 75% RH, 48 to 65Hz, external magnetic field < 40A/m, no DC component, no external current carr ying conductor,
test sample centered. Load impedance 1Ω.
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