AEMC MR461, MR561 Data sheet

AC/DC Current Probe
Model MR461

The AEMC® MR Series AC/DC Probes
are professional AC/DC current probes
designed to extend current measuring
capabilities of DMMs, oscilloscopes and
other instruments. They are built to the
latest safety and performance
standards, including the CE Mark. Two
different hook-shaped jaws are offered,
both permitting the user to “pry” or
“hook” onto cables (will accept 2 x
500MCM) or even onto small bus bars.

The MR Series probes use Hall effect
technology and measure AC and DC
current. The electronics and batteries
are self-contained in the handles. The
output of the AC/DC probes is 1mV/A
and 10mV/A. The Model MR461
measures to 400A
Model MR461 has two ranges and an
auto-zero push button (patent pending)
for quick DC zeroing.

There is no output filtering — True RMS
with DC component measurements are
possible. Phase shift is excellent,
making the MR Series of current
probes well suited for power and
power quality applications.

The Model MR461 is designed for
oscilloscopes, waveform displaying
instruments and other frequency
sensitive displaying instruments with
BNC inputs.

ac/600Adc . The

Features

• Measurement range of

ac/600Adc

400A

• Distinct jaw shapes to be used for
hooking or prying around the
conductor

• Auto-zero push button

• Auto off after ten minutes

• Conforms to EN 61010, 600V,

CAT III safety standard

• Low phase shift for power
measurements

• mV output signals

• Designed for DMMs, recorders,

oscilloscopes, power and
harmonic meters

• Double Insulation

• CE Mark

Applications

• DC motors

• Batteries

• Automobile engine testing

• Power measuring quality analysis

• Power load monitoring

MR461_120072 (pdf) 0711 Rev. 05

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Specifications

MODEL MR461

ELECTRICAL

Nominal Range 40A
Measurement Range 0.2 to 600A
Output Signal 40A: 10mV/A

Accuracy (60A

dc Range)

0.5 to 40A 1.5% of Reading ± 0.5A

40 to 60A

dc only 1.5% of Reading

Phase Shift (60A Range)

10 to 20A ≤3.5°

20 to 100A ≤3°

Accuracy (600A

dc Range)

0.5 to 100A 1.5% of Reading ± 1A

100 to 400A 2% of Reading

400 to 600A

dc only 2.5% of Reading

Phase Shift (600A Range)

10 to 100A ≤3.0°

100 to 400A ≤2.5°

Overload 1000A

Frequency Range DC to 10kHz @ -3dB

Load Impedance >100kΩ/100pF max

Working/Common
Mode Voltage

Battery 9V Alkaline (Approx. 50 hours life)

Output Termination 6 ft BNC

MECHANICAL

Operating Temperature 14° to 131°F (-10° to 55°C)
Storage Temperature -40° to 176°F (-40° to 70°C)

Operating Relative

Humidity

10 to 35°C 90% ± 5% RH (without condensation), 40 to 55°C 70% ± 5% RH (without condensation)

Zero Adjustment Auto-zero
Jaw Opening 1.2" (31mm)
Maximum Conductor Size One 1.18" (30mm) or two 0.95" (24mm) or two bus bars 1.2 x 0.4" (31.5 x 10mm)
Dimensions 8.8 x 3.82 x 1.73" (224 x 97 x 44mm)
Weight 15 oz (440g)
Polycarbonate Material Handles: Polycarbonate +ABS, Gray, UL94 V0. Jaws: Polycarbonate, Red, UL94 V0

SAFETY

Electrical EN 61010-2-32
Double Insulation

CE Mark Yes

Note: Reference conditions: 18°C to 28°C, 20 to 75% RH, external magnetic field <40A/m, no DC component, no external current carrying

conductor, test sample centered, 1MΩ ≤100pF load, zero adjustment (DC only) DC to 65Hz, battery voltage 9V ± 0.1V

ac/60Adc & 400Aac/600Adc

400A: 1mV/A

ac and 1500Adc continuous up to 1kHz

600Vrms

Yes

9

8

7

1. Jaws

2. Conductor

3. Protective non-slip guard

4. Automatic zero DC button

5. BNC connector

6. Lead, 5 ft (1.5m)

1

2

3

4

5

6

7. Range selection switch:

• On/Off

• 600A(1mV/A)

• 60A(10mV/A)

8. Green light (on when battery
voltage ≥6.5V)

9. Red light (overrange and incorrect
zero adjustment)

LeadwithBNC:
Insulated 6.5 ft
(2m) coaxial cable
with insulated BNC
connector rated
600Vrms

MR461_120072 (pdf) 0711 Rev. 05

Technical Assistance [phone] www.aemc.com 2 of 4

ORDERING INFORMATION CATALOG NO.

AC/DCCurrentProbeModelMR461(BNC – 10mV/A – 60A max & 1mV/A – 600A max) ............. Cat.#1200.72

Includes a user manual

Accessories(Optional)

Banana/BNC connector XF-SS (4mm plug adaptor) ............................................Cat. #2111.32

MR461_120072 (pdf) 0711 Rev. 05

Technical Assistance [phone] www.aemc.com 3 of 4