AEM 3945-B Manual

A SERVICE OF

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20

Power Quality Analyzer Model 3945-B

3.8 AC Current Probe MN193 Probe

(3945-B accuracy included)

NOTE: When installing probes, face the arrow on the probe in the direction of

the load.

The 5A range of the MN193 is designed to work with secondary current transform-

ers.Bestaccuracyisavailablewhenenteringthetransformerratio(e.g.1000/5A).

Whenusedtomeasure5Adirect,theresolutionwillbelimitedto0.1Amax.

Nominal Range: 5A and 100AAC

Measurement Range:

5A:0.005Ato6AACmax(1Ato1200Awithratio1000/5selected)

100A:0.1Ato120AACmax

NOTE: Currents < (Primary x 5) ÷ (Secondary x 1000) on the 5A range and <0.2A

on the 100A range will be displayed as zero with this probe

Probe Output Signal: 5A:200mV/AAC; 100A:10mV/AAC

Maximum Clamping Diameter:0.8"(20mm)

Safety: NF EN 61010-2-032, Pollution Degree 2, 300V Cat. IV, 600V Cat. III,

Reference Conditions:

Ambient temperature 73°F(23°C)±5°F(3°C)

Humidity 20 to 75% of RH

Frequency 48 to 65Hz

Distortion factor <1% without superimposed DC current

Magneticeldofexternalorigin <40A/m(earth’smagneticeld)

Accuracy Specications

Range: 10mV/A(1V@100Arms)

Primarycurrent(inAAC) 0.1A to 1A 1A to 120A

Accuracy(%oftheoutputsignal)

≤1% ± 2ct ≤1% ± 1ct

Phaseshift(°)

≤1.5° ≤1°

Overload: 120A continuous

Range: 200mV/A(1V@5Arms)withratio1000/5selected

Primarycurrent(inAAC)

Probe output

1 to 10A

5 to 50mA

10 to 100A

0.05 to 0.5A

100 to 1200A

0.5 to 6A

Accuracy(%oftheoutputsignal)

≤1.5% ± 1ct ≤1.5% ± 1ct ≤1% ± 1ct

Phaseshift(°)

≤1.7° ≤1° ≤1°

Overload: 12A continuous