Specifications

Three-Channel Wireless High Voltage Current Meter
1.First and secondary loop current,variable ratio,phase
2.wireless 30m

ETCR9500C Three-Channel Wireless High Voltage Current Meter 

  

 . Technical Specifications

Functions	The on-line measurement and detection for primary and secondary current, transformation ratio, error, phase (group) difference, polarity, phase sequence, and leaker in the three-channel high & low voltage current transformer and the voltage transformers
Power supply	HV Detector:DC6V alkaline batteries (1.5V AAA × 4) Principal machine: DC6V alkaline batteries (1.5V AAA × 4) 30-hour continuous operation available
Test mode	ClampCT, HV 1CT, LV3 CT double- shield
Transmission mode	High-pressure tested data transmitted through wireless network, with a linear transmission distance of 20m;
Range	HV detector 1st: 0.1mA ~ 1000A LVcurrent clamp 2nd: 0.01mA ~ 10A
Resolution	HV detector: 0.1mA; LV current clamp: 0.01mA
Primary circuit test accuracy (23 °C ± 3 °C, below70% RH)	0.0mA~9.99A:±1%±5dgt
	10.0A~49.9A: ±2%±5dgt
	50.0A~199.9A: ±3%±5dgt
	200A~600A:  ±4%±5dgt
	601A~1000A:   ±5%±5dgt
Secondary circuit test accuracy	0.00mA~10A: ±1%±5dgt(three-channel being displayed in one screen)   (23°C±3°C,less than 70%RH)
CT ratio	Three kinds of transformation ratio indications : (1)convert the transformation ratio based on the adjustable basic value of 5A for secondary circuit current; (2)convert the transformation ratio based on 10kV-YY of 10kV/380V, that means 1st means the current of the line under 380V, 2nd means the secondary circuit current of CT under the 380V, and then calculate the ratio between the 10KV line and the secondary circuit; (3)the measured current ratio can be calculated by the measured CT ratio between the primary and secondary circuit)
Reference Range	Reference range of transformation: 0.00A ~ 99.99A, the default secondary circuit  current is transformed to 5A;
Range of Ratio error (F.Er)	0.0% ~ 9.9%, the error between the measured CT ratio and the preset CT ratio
Range of CT ratio	0000~9999/0.0A~9.9A
Range of Ratio error	0.0%~9.9%,the principal machine can sound a alarm of “beep - beep – beep” if the measured value is more than the preset error.
Phase polarity	Symbol  indicated for in-phase positive polarity Symbol  indicated for in-phase negative polarity
Indication of Phase Sequence	Cursor in clockwise rotation and“Positive Phase”  indicated for positive phase sequence Cursor in counterclockwise rotation and“NegativePhase”  indicated for negative phase sequence
Indication of Error	Symbol “Error” indicated if  the tester can’t identify the phases, polarity,  and phase sequence properly;
Data Storage	1500 sets of dada memory; press the Left arrow key to select data, and to save and auto-number the selected data (the good condition of data available under power-down or battery replacement)
Automatic  Recording Interval Time	From 00 minutes to 99 minutes, the tester stops automatic record if being set to 00 minutes; the principal machine doesn’t shut down automatically if being set from 01 minutes to 99 minutes.
Sampling rate	3 times / sec
Shift	Full-automatic shift
Dimensions	Principal machine:W75mm × H170mm × T30mm; HV detector: W 76mm × H 255mm × T 31mm; LV current clamp: W 70mm × H115mm × T 38mm;
Clamp Size	HV detector clamp: φ48mm LVcurrent clamp: 25mm × 30mm
Voltage	Less than 70kV voltage for line test(operation by being connected to 5 insolating rods required)
Display Mode	LCD: 128dots × 64dots; backlight available for dark areas
LCD Size:	44mm× 27mm;
Data Retention	Press the Left arrow key to retain the data ; press the Left arrow key to cancel retention if the symbol “HOLD” displays;
Data Search	Press the MEM key and the Arrow key to search data;
O verflow Display	Overflow available if being out of range: the symbol “OL A” displayed;
Zero-signal indication	The symbol “---" is shown if the principal machine can’t receive the signal from the HV detector;
Backlight Control	Available; ON / OFF means to open /close the backlight;
Alarm prompt	The principal machine can sound an alarm of “beep - beep – beep” if the measured value is more than the preset error. and press the Right arrow key to launch or stop the alarm function;
Auto power-off	Automatic power-off available after about 15 minutes as of starting;
Battery voltage	The low- voltage symbol is displayed to remind user to replace the battery if the battery voltage is lower than 4.8V;
Weight	Principal machine:240g (including batteries) HV detector: 335g (including batteries) LV current clamp: 150g × 3 Total weight: 10kg (including instrument box and the insulating rods)
Requirements on Interferences	No strong electromagnetic interference; no interference from 433MHz and 315MHz channel
Operating temperature and humidity	-25°C~45°C; less than 80%Rh
Storage temperature and humidity	-10°C~60°C; less than 70%Rh
I nsulating rod size	Outer diameter φ32mm, inner diameter φ24mm, 1m /piece, 5 pieces
Lead length of LV current clamp	2m/ Piece
Dielectric strength	AC100kV/rms between HV detector cover and the 5 th insulating rod; the AC1000V/rms between the principal machine and the LV current clamp shell between
Structure	Anti-leak type II (HV detector)

 

 .Field Application