ETCR4700 Three Phase Digital Phase Volt-Ampere Clamp Meter
Features:
The ETCR4700Three Phase Digital Phase Volt-Ampere Meter is a well-developed full-automatic, multi-functional, digital, intelligent meter specifically designed for field testing,featuring high accuracy, high stability, low power consumption, easiness to use and so on. It can directly measure AC voltage and AC current without opening the measured circuit, phases between three voltages, three currents and phase between the voltage and current; in addition, the power factor and power of the circuit can be indirectly measured, it can also be used to distinguish three-phase sequence, transformer wiring group, inductive and capacitive circuits, test second circuit and bus differential protection systems, read the phase relationship between CTs of the differential protection, check the meter wiring right, repair lines and equipment, etc.
The ETCR4700 Three Phase Digital Phase Volt-Ampere Meter has well designed shell mould made of newest material, attach with shakeproof, skidproof, high insulation sheath, has a 240dots×160dots LCD screen, all the test data display on the screen simultaneously, vector diagram indication, and looks exquisite and comfortable. Meter equipped with USB-RS232 interface, can store 1500 sets of data, through the system software upload stored data to the computer, implementing online real-time monitoring and historical inquires, dynamic display. Can read, save, report, print history data, etc.
The ETCR4700 Three Phase Digital Phase Volt-Ampere Meter (Intelligent Three Phase Digital Phase Volt-Ampere Meter) applies to electric power, petroleum chemical industry, metallurgy, railway, and meteorology, industrial and mining enterprises, scientific research institutions, measurement sector and so on. Especially for the electricity billing system and relay protection system.
Specifications:
Ⅱ.Technical Specifications
1.Base Conditions and Working Conditions
Influence Quantity
Base Condition
Working Condition
Remark
Ambient Temperature
23℃±1℃
-10℃~40℃
----
Ambient Humidity
40%~60%
<80%
----
Signal Waveform
sine wave
sine wave
β=0.01
Signal Frequency
50HZ±1HZ
45HZ~65HZ
----
Meter Working Volt
9V±0.1V
9V±1.5V
----
Current Amplitude in Phase/Frequency/Phase Sequence Test
1A±0.2A
2mA~20A
----
Voltage Amplitude in Phase / Frequency/ Phase Sequence Test
100V±20V
10V~600V
----
Current Amplitude in Power / Power Factor Test
1A±0.1A
0.1A~400A
----
Voltage Amplitude in Power / Power Factor Test
200V±2V
30V~600V
----
External ElectricMagnetic Field
To be avoided
Measured Wire Position
Measured wire at approximately the geometric center of the clamp
2.Intrinsic Error and Performance Indicators under Base Conditions
Category
Measurement Range
Resolution
Intrinsic Error
Voltage
AC 0.0V~600V
0.01V
±(1.5%rdg+5dgt)
Current
AC 0mA~400A
1mA
±(1.5%rdg+5dgt)
Phase
0.0°~360°
0.1°
±3°
Active Power
0.0W~240kW
0.1W
±(3%rdg+5dgt)
Reactive Power
0.0VAR~240kVAR
0.1VAR
±(3%rdg+5dgt)
Apparent Power
0.0VA~240kVA
0.1VA
±(3%rdg+5dgt)
Frequency
45HZ~65HZ
0.01HZ
±(2%rdg+5dgt)
Power Factor
-1~+1
0.001
±0.03
3.General Specification
Function
Simultaneous measurement of three-phase AC voltage, current, phase between voltage, phase between current, phase between voltage and current, frequency, phase sequence, active power, reactive power, apparent power, power factor, current vector sum, distinguish transformer wiring group, inductive and capacitive circuits, test second circuit and bus differential protection systems, read the phase relationship between CTs of the differential protection, check the meter wiring right, repair lines and equipment, etc.
Power
DC9V alkaline batteries(1.5V LR6×6)
Consumption
About 80mA at most with enabled backlight, battery working continuously for about 10 hours
About 5mA with disabled backlight, battery working continuously for about 16 hours
Display Mode
LCD display, 240dots×160dots
Meter Size
Length, Width, Height:196mm×92mm×54mm
Clamp Size
round current clamp:35mm×40mm
Measurement Range
(automatic shift)
AC Voltage:0.00 V~600V (automatic shift)
AC Current:0mA~400A (automatic shift)
Phase:0~360°
Frequency:45.00Hz~65.00Hz
Active Power:0W~240kW
Reactive Power:0W~240kVAR
Apparent Power:0W~240kVA
Power Factor:-1~+1
Current Vector Sum:0A~1200A
Resolution
Voltage:AC 0.01V
Current:AC 1mA
Phase:0.1°
Frequency:0.01Hz
Active Power:0.1W
Reactive Power:0.1VAR
Apparent Power:0.1VA
Power Factor:0.001
Current Vector Sum:0.1A
Phase Sequence
Positive Phase Sequence:U1、U2、U3 or I1、I2、I3 cursors blink in order from left to right
Negative Phase Sequence:U1、U2、U3 or I1、I2、I3 cursors blink in order from right to left
SampleRate
About 2 times/second
Data Hold
Press HOLD key to keep data, "DH" symbol appears
Data Storage
500 sets
RS232 Interface
USB-RS232 interface, download data to computer for analysis and management
Automatic Shutdown
Automatic shutdown about 15 minutes later after launching to reduce battery consumption
Backlighting
Suitable for dark place and nightly use
Voltage Detection
Low battery symbol “ " appears to remind the replacement of battery when the battery voltage drops below 7.2V.
Weight
Main Unit about 550g(with battery),acuminate current clamp about 170g×3, round current clamp about 185g×3, test line about 250g
Test Line Length
1.5m
Current Clamp Length
2m×φ5mm
Working Temperature and Humidity
-10℃~40℃; below 80%Rh
Storage Temperature and Humidity
-10℃~60℃; below 70%Rh
Input Impedence
Testing voltage the input impendence is 2MΩ
Withstand Voltage
Withstand 1000V/50Hz sine wave AC voltage for 1 minute between the meter lines and shell; Withstand 500V/50Hz AC voltage sine wave for 1 minute between the two voltage inputs
Insulation
≥100MΩ between meter lines and shell or between the two voltage inputs
Structure
Double insulation, with insulation vibration-proof sheath
SafetySpecifications
IEC61010-1 CAT Ⅲ 600V, IEC61010-031, IEC61326, 2 class of pollution
Accessories
Main Unit: 1 pc; Meter Box: 1 piece; Current Clamp: 3 pcs; Test Line: 4 pcs(yellow, green, red, black); RS232 Data Line: 1 pc; Disk: 1 pc; Battery: 6 pcs(LR6)(not included package); User Manual: 1 pc ;Guarantee: 1 pc; Certification: 1 pc. Card
Logistics information
Our products are located in Hong Kong, China, and the logistics speed depends on your specific location. According to our experience, it usually takes about 15-20 days of transportation time
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How to choose the correct size:
Step 1 Please measure your foot length carefully.

Step 2 Please choose the correct size according to your foot length and chinese size.
For example, If your foot length is 255 mm , you should choose the size 8.
