Aemc instruments MN211, MN210 User Manual

AC Current Probe
Models MN210 and MN211

User Manual

DESCRIPTION

The MN210/MN211 (Catalog #2115.72 and #2115.73) are the latest in compact AC Current probes.
Designed to meet the most stringent demands in industry and electrical contracting, they also meet the
latest safety and performance standards. The probes have a measurement range up to 240 Arms which
makes them perfect tools for measurement with DMMs, recorders, power and harmonic meters. The
Models MN210/MN211 are compatible with any AC ammeter, multimeter, or other current measurement
instrument with an input impedance lower than 1. To achieve the stated accuracy, use the
MN210/MN211 with an ammeter having an accuracy of 0.75% or better.

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: Potentially high voltages and currents may be present and may pose
a shock hazard.

• Read the Safety Specifications section prior to using the current probe. Never exceed the
maximum 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.

• NEVER use the current probe on electrical conductors rated above 600V in overvoltage
category III (CAT III). Use extreme caution when clamping around bare conductors or bus bars.

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

Nominal Range: 200 A
Measurement Range: 0.5 to 240 A AC
Transformation Ratio: 1000:1
Output Signal: 1 mA/A on 1
Accuracy and Phase Shift*:

Accuracy: 0.5 to 10 A: 3.0% Reading ± 0.5 A
10 to 40 A: 2.5% Reading ± 0.5 A
40 to 100 A: 2.0% Reading ± 0.5 A
100 to 240 A: 1.0% Reading ± 0.5 A

Phase Shift: 0.5 to 10 A: Not Specified
10 to 40 A: ≤ 5°
40 to 100 A: ≤ 3°
100 to 240 A: ≤ 2.5°

(*Reference conditions:18°C to 28°C, 20 to 75% RH,
external magnetic field < 40 A/m, 48 to 65 Hz sine
wave, distortion factor less than 1%, no DC
component, no external current carrying conductor,
test sample centered.) Load impedance 1.

Overload: 240 A for 10 min ON, 30 min OFF
Frequency Range: 40 to 10 kHz