ETCR040 High Accuracy Clamp AC Leakage Sensor User Manual
Contents
1. ETCRO40 High Accuracy Clamp AC Leakage Sensor User Manual Thanks for your purchase of ETCR040 High Accuracy Clamp AC Leakage Sensor of our company For better use of the product please make sure to read this user manual in details to abide by the safety regulations and precautions strictly Under any circumstance it shall pay special attention on safety in use of this sensor Pay attention to words and symbols stick on the panel Keep the pliers clean maintenance regularly Stop using the sensor when there is a rupture or break Please don t keep or store the sensor in the spot with high temperature and moisture or condensation and under direct daylight radiation for a long time u This sensor is only to be used disassembled and repaired by qualified personnel with authorization u When it may cause hazard by continuous use for the reason of the sensor itself it shall immediately stop using it and deposit it at once leaving it for disposal by authorized agency u For risk of danger icon in manual users must perform safety operations strictly in compliance with the manual content Cfo Go I Introduction ETCRO40 High Accuracy Clamp AC Leakage Sensor is used for measurement of high accuracy AC current leakage current high order harmonic current phase power energy power power factor Adopt the latest CT technology It is portable clamp design no need to disconnect the measured circuits non contact saf2. e and fast It can be connected with phase detection analyzer industrial control equipment data recorder oscilloscope harmonic analyzer electric power quality analyzer high precision digital multi meter etc Widely applied in electricity communication meteorology railway oilfield construction measurement scientific and research teaching unit industrial and mining enterprises ETCRO40 High Accuracy Clamp AC Leakage Sensor s clamp core is made of special alloy adopt the double magnetic shielding techniques can almost shield the influence from external magnetic field to ensure the high precision high stability and high reliability of perennial uninterrupted measurement II Technical Specifications Measurement of AC current leakage current high order harmonic current phase power energy power power factor Clamp CT 3 Clamp Size 0 300A AC 0 01mA AC 1 0 FS 50HZ 60Hz 23 C 2 C below 70 RH keep the wire be in the center RL 0 300mAs500ohm 0 3A lt 500hm 0 30A lt 50hm 0 300A lt 0 50hm Electric Field About 10mA when the external electric field 100A 10mm nearby Measured Wire Position Approximately in the geometric center of the clamp Current Frequency 45H 60Hz when measuring big current os e Frequency i Characteristics pe WOR Dimension 120mmx70mmx33mm Weight 190g 20 C 50 C below 80 rh 10 C 60 C below 70 rh AC3700V rms between core and shell IEC1010 1 IEC 1010 2 032 Pollution de
3. gree 2 CAT III 600V MI Principle and Structure The sensor induced output a current 11 the current 11 generate voltage U on the external sampling load resistance RL so the measured current I can be calculated by measuring I1 or U Among them l nx I1 U l1 lt RL n is the coils turn current ratio 1 r 2 3 4 ty ry yO 2 6 V 1 Coil tap 2 Coil tap 3 Shielding ground 4 Sensor output plug 3 5mm audio plug 5 Output wire 2 5mm 6 Trigger open and close the clamp 7 Clamp Clamp live wire or null line separately to measure the current of this line Note single wire Clamp live wire and null line together to measure leakage current of single phase Note 2 wires Clamp earth wire to measure grounding line leakage current of electrical equipment Note single wire Clamp three wires together to measure the leakage current of three phase three wires Note 3 wires Clamp four wires together to measure the leakage current of three phase four wires Note 4 wires Manufactured by ETCR Electronic Technology Company Address F 3F No 4 Pengshang Zhifu Road Jiahe Baiyun District Guangzhou Guangdong China Post Code 510440 Tel 86 20 62199556 62199553 Fax 86 20 62199550 E mail info etcr cc Website www etcr cc
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