★
Measurement of energy meter errors, display of voltage, current, power,
power factor, frequency etc.
★
Measurement of harmonics of 2nd to 51st
★
Measurement of transformation ratio for CT
★
Measurement for register
★
Detection of wiring failures and calculation of electricity compensation
★
USB and communication ports available
★
Self adjusted clamp-on CT’s provided
★
Double of power supply via lithium battery or PT
Main features
● Automatic/manual
measurement of single phase, three phase three wire, three phase four wire
active and reactive induction energy meters and static energy meters (by
sampling pulse)
● Comparison
measurement of voltage, current, power, power factor, phase, frequency of other
electric instruments and transmitter by
● Measurement of
secondary burden of PT and CT; proofreading of constant of energy meter;
energy measurement of four quadrants
● Simultaneous
measurement of errors for active and reactive energy meters; simultaneous
measurement of errors of master and sub meter; automatic calculation of
standard deviation estimates
● Simultaneous
measurement of active and reactive errors for load management terminal and
distribution/ substation monitoring terminals;
● Equipped with
RS232, and USB port
Equipped with standard communication
interfaces such as RS232 and USB.
USB interface: Use a
USB flash drive to upgrade software and upload inspection data.
RS232 interface:
enables communication and data transmission with computers.
● Wiring testing is
accessible on a new no-load field (with PT/CT)
● True reactive
digital measurement technique, stable operation without influences of
voltage/current unbalances, phase angle asymmetry and frequency changes;
reactive accuracy to 0.1%
● Stability is
highly improved without the utilization of potential meter
●
20A,100A,500A,1000A clamp-on CT's for selection; transformation ratio of CT can
be measured with the utilization of a 5A clamp-on CT's meanwhile
● Automatic
diversion of voltage (30V~480V), 5A current direct input
● Detection of
regular wiring failures of three phase three wire(48), three phase four wire
circuits(96); vector diagram display
● Measurement of
harmonics (2nd ~51st ), measured data can be stored
● Simultaneous
display of waves of three phases’ voltage and current
● Data management
- -
Measured data of 1000 energy meters can be stored including working parameters
for further analysis
- -
Communicable to PC, convenient connection to existing data base and management
system;
- -
With the utilization of a flash disk and upgrade software, measured data can be
uploaded at anytime
● Double way of
power supply via lithium battery or measured circuit
● Light plastic
enclosure design
Technical Data
|
General
|
|
Power supply
|
AC57.7~440V, 50~60Hz
|
|
Power consumption
|
About 20VA
|
|
Ambient temperature
|
-20℃--+40℃ (accuracy assured)
|
|
Relative humidity
(not condensing)
|
40%-95% (not condensing)
|
|
Dimension(L×W×H, mm)
|
249×154×58
|
|
Weight
|
1.8Kg
|
|
Warm-up time
|
< 3 minutes
|
|
Battery endurance
|
4 hours
|
|
LCD color display
|
5.7”, 320×240 TFT
|
|
Communication port
|
RS 232
|
|
Safety
|
|
Declaration of conformity
|
CE conformed
|
|
Operation reference
|
|
Measuring ranges
|
|
Voltage
|
AC 30~480V
|
|
Current:
|
Direct connection—5A
Via clamp-on CT’s: 100A(±0.2%)
|
|
Frequency
|
45~65Hz
|
|
Phase
|
-180 º ~+180º
|
|
Constant of pulse
|
5A: FL=3.6×104P/KWh
FH=3.6×107P/KWh Others: FL=36000×5/rated current (P/KWh)
FH=3.6×107×5/
rated current (P/KWh)
|
|
Harmonic measurement
|
Range: 2nd ~51st
Accuracy: ±0.01% (compared to 100% fundamental wave)
|
|
Transformation ratio deviation
|
< ±0.2%
|
|
Voltage deviation
|
< ±0.01%
|
|
Frequency deviation
|
< ±0.01%(45-55Hz)
|
|
Influence of temperature
|
< ±5ppm/ ℃(typical)
|
|
Direct connection
|
|
|
Accuracy class: 0.1
|
Accuracy class: 0.05
|
|
Active energy
|
±0.1%
|
±0.05%
|
|
Reactive energy
|
±0.1%
|
±0.1%
|
|
Active power
|
±0.1%
|
±0.05%
|
|
voltage
|
±0.1%
|
±0.05%
|
|
current
|
±0.1%
|
±0.05%
|
|
Frequency
|
±0.05Hz
|
±0.05Hz
|
|
Phase
|
±0.1º
|
±0.05º
|
| 
