Multi range AC crrent clamps (0.5A / 5A / 50A) A 1588 Instruction manual Version 1.0, Code no.
Distributor: Manufacturer: METREL d.d. Ljubljanska cesta 77 1354 Horjul Slovenia web site: http://www.metrel.si e-mail: metrel@metrel.si © 2018 METREL Mark on your equipment certifies that this equipment meets the requirements of the EU (European Union) concerning safety and electromagnetic compatibility regulations. No part of this publication may be reproduced or utilized in any form or by any means without permission in writing from METREL.
A 1588 Multi range AC current clamps Table of contents DESCRIPTION OF CURRENT CLAMPS ........................................................................5 CURRENT CLAMPS OPERATION .................................................................................6 OPERATION INSTRUCTIONS..............................................................................................6 SUBSTITUTE ELECTRIC MODEL FOR CURRENT CLAMPS .....................................................7 TYPICAL APPLICATIONS ....
A 1588 Multi range AC current clamps Symbols and Warnings To ensure a high level of operator's safety during using of A 1588 Multi range AC current clamps the following warnings has to be considered: ! ! Do not use the current clamp if any damage is noticed! Consider all generally known precautions in order to avoid risk of electric shock while dealing with electric installations! ! Do not extend hands over safety barrier to prevent of electric shock! Only handles are allowed to be to
A 1588 Multi range AC current clamps Description of current clamps The A 1588 multi range current clamps are designed for measuring alternating currents on low and medium power installations: 50 mA ÷ 50 A. They have electronic module, and can be connected only to Metrel PowerQ series of measuring instruments: Energy Master (MI 2883) Master Q4 (MI 2885) Power Master (MI 2892) Clamps have three current ranges 0.5A, 5A and 50A, which are selected directly by the connected instrument.
A 1588 Multi range AC current clamps Current clamps operation Operation Instructions Figure 2: Current clamps A 1588 - connection to the measuring instrument Step 1 Connect A 1588 current clamps output connector to the appropriate (Metrel Power series) measuring instrument’s current input terminal.
A 1588 Multi range AC current clamps Make measurement. (For further information see Instruction manual of measuring instrument.) Step 5 Disconnect clamps from the conductor(s).Use all safety measures as described in step 3.
A 1588 Multi range AC current clamps Power Measurement A 1588 current clamps have small phase shift (see Figure 7 and Figure 9) over wide frequency range. Therefore they are well suited for: Power and energy measurements (active, reactive, apparent) Power factor measurements Power/Energy efficiency Leakage Current Measurement Measurement Of Leakage Current By Direct Method This method is used when measuring the current through one (embraced) conductor.
A 1588 Multi range AC current clamps Deterioration of insulation (because of pollution, moisture, corrosion). This is causing a gradual increase of the resistive leakage current. Faults in electronic equipment. If the neutral and PE wiring are connected together anywhere in the installation this can result in an improper current distribution through the neutral and PE conductors.
A 1588 Multi range AC current clamps Safety: EN/IEC 61010-1 EN/IEC 61010-2-32 EMC: EN/IEC 61326-1 Accuracy And Phase Error Reference conditions: Temperature: 23 0C 1 0C Humidity: 60 % Current range 0.5 A 5A 50 A Peak current 1.5 APEAK 15 APEAK 150 APEAK Crest factor @ Nominal current 3,0 3,0 3,0 Current range* 50 mA ÷ 1 A 0.5 A ÷ 10 A 5 A ÷ 100 A RMS Current Accuracy 0.5 % of m.v. 0.5 % of m.v. 0.5 % of m.v. Accuracy Nominal current (INom) 40 Hz ÷ 700 Hz (<0.
A 1588 Multi range AC current clamps 2,50 3,0 2,5 Phase Error (°) Acurracy (%) 2,00 1,50 1,00 2,0 1,5 1,0 0,50 0,5 0,00 0,0 10 100 1000 10000 10 Freqency (Hz) Figure 8: Accuracy vs. frequency (for 5A range) 100 1000 Freqency (Hz) 10000 Figure 9: Phase error vs. frequency (for 5A range) Electromagnetic Compatibility (EMC) Current clamps A 1588 conforms to the directive 2004/108/EC for EMC, as defined by EN-61326-1: - Emission: Class B (domestic and industrial use).
