Sonel C-6A Current Clamp User Manual

: June 9, 2024
: Sonel

Table of Contents

Sonel C-6A Current Clamp
Description
Safety
Operation
Cleaning and maintenance
Reference conditions
Technical data
Manufacturer
References
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Sonel C-6A Current Clamp

Description

The C-6A clamp is designed to measure AC currents with frequencies up to 10 kHz for a range of 10 mA…10 A. The output signal is a voltage proportional to the measured current at the sensitivity of 100 mV/A. It is introduced via a cable (length: 2.2 m) ended with a pin suitable for a socket in the meter.
The arrow marked on one of the clamps indicates the direction of the current flow. It is assumed that the current flows in a positive direction if it flows from the source to the receiver. This orientation of clamps is required for the correct power measurement.

Safety

Do not expose the clamp to water.
Do not use non-insulated clamps for conductors with a potential exceeding 600 V with respect to the ground, in systems with a measurement category higher than III and systems of measurement category IV with a potential exceeding 300 V.

Operation

To measure the current, open the clamp slightly by turning the clasp, clamp it on the conductor with flowing current, and roughly center the conductor relative to the clamp loop. Pay attention to the direction of the arrow, to avoid the power measurement error.

The gap (formed by the faces of the core) should be kept perfectly clean.

Cleaning and maintenance

NOTE!
Apply only maintenance methods specified by the manufacturer in this manual. Before cleaning, disconnect the clamp from the tested circuit and the meter. Do not spray the clamps with water. Remove the dust from the gap with a soft and dry cloth. Periodically wipe the accessible iron part of the jaws with an oil-soaked cloth to prevent possible corrosion. The clamp may be cleaned with a soft, damp cloth using all-purpose detergents. Do not use any solvents.

Dismantling and utilization
Worn-out electric and electronic equipment should be gathered selectively, i.e. it must not be placed with the waste of another kind. Worn-out electric equipment should be sent to a collection point in accordance with the law of waste electrical and electronic equipment. Before the equipment is sent to a collection point, do not dismantle any elements. Observe the local regulations concerning the disposal of packages.

Reference conditions

temperature ………………………………………+20°C …+26°C
relative humidity …………………………………………. 20…75%
conductor …………………………………….. centered in the jaws
frequency of sinusoidal current ………………….. 48…65 Hz
total harmonic distortion …………………………………….. <1%
current constant component ………………………………. none
permanent magnetic field …. <40 A/m (Earth’s magnetic field)
variable, external magnetic field …………………………. none
conductors in the immediate vicinity …….. no current flow

Technical data

Basic technical data

Zakres prądu	Dokładność 1)	Maks. błąd fazy
0,01…0,1 A	±(3% + 1 mA)	niespecyfikowany
0,1…1 A	±2,5%	±5°
1…12 A	±1%	±3°

as % of the measured value

frequency range …………………………………. 40 Hz…10 kHz
output level …………………………………. 100 mV AC/1 A AC

When using the coil with a SONEL meter, the total measurement accuracy of the measuring system of the meter and clamp is specified in the manual of a given meter. It is not the sum of the accuracy of the meter and the accuracy of the clamp.

Other technical data