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ETCR9500 Wireless High Voltage Current Transformation Ratio Tester
Color page: User's manual: CE certificate:
ETCR9500 Wireless High Voltage Current Transformation Ratio Tester ETCR9500 ETCR

First and secondary loop current, variable ratio, and current leakage online test of high and low voltage current transformer and transformer; first range: 0.1mA~1000A; secondary range: 0.01mA~10.0A; wireless transmission distance: 30m; length of insulation rod: 1mX5 pieces; data memory: 3000 sets

ETCR9500 Wireless High Voltage Current Transformation Ratio Tester
ETCR9500 Wireless High Voltage Current Transformation Ratio Tester



ETCR9500 Wireless High Voltage Current Transformation Ratio Tester breaks traditional structure, specially designed for high and low voltage first and secondary loop current, variable ratio,  and current leakage test; apply the latest CT technology and mask digital integration technology, composed of special high-voltage clamp, low voltage clamp, host, high voltage insulation rod and monitoring software, etc; its wireless transmission test data can penetrate multiple building obstacles with a straight-line distance of 30 meters.

With monitoring software, the meter has online real-time monitoring and historical query function, with dynamic display, wave direction, variable ratio, frequency indication, with maximum, minimum, mean value indication; alarm setting and alarm indication functions, functions of historical data reading, access, saving, analysis, processing, sorting, fitting curve, report and printing.
High-voltage detector connected rod can be used in the measurement of high voltage line current, currents on both sides of transformer, variable ratio test, online current monitoring below 60KV; The special clamp ammeter can facilitate clamp to exit the tested lead by pressing or pulling back insulation bar, which is time efficient and convenient; widely used in power plant, substation, industrial and mining enterprise, inspection station, electrician maintenance department for current sensing, power audit and field working.
.Technical Specifications

High and low voltage first and secondary loop current, variable ratio, current leakage online test; current on both sides of transformer, variable ratio online monitoring  
Power supply
DC6V alkaline dry battery (1.5V AAA×4), continuous working for 30 hours
Test mode
Clamp CT
Transmission mode
Wireless transmission, the maximum distance of straight line transmission is about 30m
Display mode
LCD: 128dots×64dots; blue backlight function
LCD dimension
Display domain: 44mm×27mm
Meter dimension
Host: width, height, thickness78mm×165mm×42mm
High voltage clamp: width, height, thickness 76mm×255mm×31mm
Low voltage clamp: width, height, thickness 63mm×160mm×23mm
Clamp dimension
High voltage clamp: φ48mm
Low voltage clamp: φ30mm
Sampling rate
 2 times/second
Measurement scope
High voltage clamp: 0.0mA~1000A
Low voltage clamp: 0.00mA~10A
High voltage clamp: 0.1mA
Low voltage clamp: 0.01mA
Automatic shift
One loop testing accuracy
23℃±3℃, below 80%RH
0.0mA~10.0A:       ±1%±5dgt 
10.0A~49.9A:        ±2%±5dgt 
50.0A~199.9A:      ±3%±5dgt
200A~600A:          ±4%±5dgt   
601A~1000A:        ±5%±5dgt  
Secondary loop testing accuracy
0.00mA~10A:        ±1%±5dgt  (23℃±3℃, below 70%RH)
Variable ratio
3 variable ratio displays: (first and secondary loop real-time current measurement ; calculate the variable ratio at 5A of secondary loop and 10kV-YY of transformer 10kV/380V); the maximum transformation ratio is 1:10 million (1.0K7)    
Data storage
3000 sets, press key HOLD to maintain data and automatically numbered storage (data won’t lose in power off or battery replacement)
Line voltage
Below 60KV line test (with 5 insulation rods operation)
Data retention
Press key HOLD key to maintain data, shown by HOLD , and then press HOLD to cancel maintaining.
Data access
Enter data access mode by pressing key HOLD+ key POWER 
Overflow display
Over-range overflow function: shown in “OL A
No signal indication
 “No signal” will be shown when the host fails to receive signal
Automatic shutdown
15 minutes after boot, meter automatically shuts down
Battery voltage
When battery voltage is lower than 4.8V, battery voltage is shown in low symbol to remind battery replacement
Meter mass
Host: 330 g (with battery)
High voltage clamp: 335g (with battery)
Low voltage clamp: 170g (optional)
the total mass of meter: 2.5kg (including insulation rod and battery)
External disturbance
No particularly strong electromagnetic field; without 433MHz and 315 MHz interference
Working temperature and humidity
 -25℃~45℃; below 80%Rh
Storage temperature and humidity
-10℃~60℃; below 70%Rh
Insulation rod dimension
φ32mm, 1m/piece (5pieces,standard configuration)
Low voltage current clamp lead
Standard 2m
Insulation strength
High voltage clamp: AC100kV/rms (between the 5th insulation rod and high voltage current clamp core)
Host and low voltage clamp: AC1000V/rms
Anti-drip type Ⅱ (high voltage detector)
Safety Provisions
IEC1010-1, IEC1010-2-032, Pollution Class 2, CAT Ⅲ(600V), IEC61326(EMC standard)
Clamp: 1 piece; receiver: 1 piece; current clamp: 1 piece; disc: 1 piece; RS232 communication wire: 1 piece; meter box: 1 piece; insulation rod (1m): 5 pieces.

III Field Application
ETCR9500C Three-Channel Wireless HV CT Ratio tester

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ETCR Electronic Technology Company

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