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ETCR148A Super-large Caliber Clamp Current Sensor
ETCR148A Super-large Caliber Clamp Current Sensor ETCR 148A ETCR

Clamp CT:108*148mm, Range:0.0A~3500A(AC), Resolution: 0.1A,Accuracy: 1%, Current mutual Inductance output, Direct Coil tap, Suitable for big current test

ETCR148A Super-large Caliber Clamp Current Sensor
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ETCR148A Super-large Caliber Clamp Current Sensor
Ⅰ.Introduction

ETCR148A Super-large Caliber Clamp Current Sensor is well designed and manufactured for measurement of AC current, higher harmonic current, phase, electric energy, power and power factor, by adopting the latest CT technology. Its large caliber 148mm×108mm can clamp electric cable of Φ108mm, or 160mm×4mm flat cable and steel earth wires. It is portable, clamp designed, no need to disconnect the circuit, non-contact measurement, which means safer and faster. It can be connected with phase detection analyzer, industrial control equipment, data recorder, oscilloscope, electric power quality analyzer, high precision multi-meter, widely applied in those fields as electricity, communications, meteorology, railroad, oilfield, construction, measurement, scientific & research teaching institutes, industrial and mining establishments.
The clamp is made of special alloy, adopt the latest CT and 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
Function
Measurement of AC current, higher harmonic current, phase, electric energy, power and power factor
Test Mode
Clamp CT
Clamp Size
148mm×108mm
Measurement Range
AC 0.0A-3500A
Resolution
AC 0.1A
Accuracy
±2.0%FS (50Hz/60Hz; 23℃±2℃, below 70%RH, keep the measured wire be in the center of the clamp)
Coils Turn
3000: 1
Phase Error
≤3°(50Hz/60Hz; 23℃±2℃)
Reference Load
RL: 0-300mA≤3kΩ; 0-30A≤30Ω; 0-4000A≤0.3Ω
Output Mode
Current induction output
Output Interface
2 bare wires or standard multi-meter pen plug
Lead length
2m
Electric Field Interference
About 5mA when the external electric field 100A, 10mm nearby
Wire Position
Keep the measured wire be in the center of the clamp
Current Frequency
45Hz-60Hz (Frequency of the measured current)
 
10Hz-100kHz
Circuit Voltage
Below 600V AC
Size
Length 350mm × Width 180mm × Height 55mm
Weight
1.5kg
Working Temperature and Humidity
-20℃-50℃, below 80%rh
Storage Temperature and Humidity
-10℃-60℃, below 70%rh
Insulation strength
AC3700V/rms(between core and shell)
Safety Specifications
IEC1010-1, IEC1010-2-032, 2 class of pollution, CAT Ⅲ(600V)
Accessories
Current Sensor: 1 pc
 

III. Structure Drawing

ETCR148A Super-large Caliber Clamp Current Sensor

1. Coil tap            2. Coil tap            3. Lead wire (2m)        4. Clamp     

5. Lock switch (after lock, the clamp can’t be open)        6. Trigger (open and close the clamp)  

7. Battery cover       8. Battery cover screw (1 piece)

9. Up and down cover connecting screws (6 pieces)

(Note: The coil tap can be bare wire or standard multi-meter plug)


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ETCR Electronic Technology Company

Add: No.8, Yongxing He Xingdong Street, Taihe Town,Baiyun District,Guangzhou,China. Tel: +86-020-62199556     Fax: +86-020-61100822   E-mail: info@etcr.cc