ETCR9500C Three-Channel Wireless High Voltage Current Meter----New!
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 ~ 1000ALVcurrent 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 polaritySymbol indicated for in-phase negative polarity |
| Indication of Phase Sequence | Cursor in clockwise rotation and“Positive Phase” indicated for positive phase sequenceCursor 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: φ48mmLVcurrent 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 × 3Total 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
ETCR9500C Three-Channel Wireless High Voltage Current Meter----New!
