Three Phase Reference Standard Meter – Android

Three Phase Reference Standard Meter – Android

The main objective of this device is to calibrate the errors in three-phase and single-phase energy meters i.e. the meter under test (MUT). Meter test equipment supports both static and electro-mechanical types of meters. Uses Latest technology and innovation, where metrology sub-unit communicates the measurements to an Android Tab via Bluetooth. All user interfaces – textual and graphical are developed in the Tab, with a number of innovative features. Also, field engineers can customise the screens to suit their requirements. With the wireless communication between the metrology part – which is connected to the High Voltage- and the user interface, human safety is ensured.


  • Bluetooth wireless colour display (TAB) with touch input
  • Data transfer to pc through bluetooth or USB
  • External wireless (Bluetooth) printer for on site printing
  • Smart App (Android) for operate the TPRS
  • Storage of 8000 test results with search facility
  • Primary calibration LED (kWh and KVArh)
  • Sofware diagnostic feature
  • Data transfer through RS-232 serial port
  • External portable printer for on-site printing (optional)


TPRS-1107-H TPRS-1107-L TPRS-1107-LH
Applications HT Meters LT-CT operated meters HT Meters
LT-Whole current meters LT-CT operated meters
LT-Whole current meters
Direct Mode
Current 10mA-10A 10mA-10A 10mA-10A
Accuracy 0.2S / 0.2 0.2S / 0.2 0.2S / 0.2
Clamp on Mode
/Primary current
Current NA 500mA-100A* 500mA-100A*
Accuracy 0.5S / 0.5 / 0.2S / 0.2 0.5S / 0.5 /0.2S/0.2
Current Measurement
Current NA NA NA
Display Resolution & Parameters
Volage 0.01 V
Current 0.0001 A
Power Factor 0.001
Frequency 0.001 Hz
Energy 0.00001 Wh
Error Percentage 0.00%
To analyse the waveform distortion
To identify cases of CT saturation
Available for both Voltage and Current channels
Voltage and Current Harmonic Distortion
Analysis upto 21 st Harmonic
Instantaneous Measurement
Simultaneous display of all Instantaneous parameters
Phase-wise – Voltage, Current, Active & Reactive Current and power Factor
Phase wise active,Reactive and Apparent Power
Average Power Factor and Frequency
Phase to Phase Voltage and Angle
Dimension 275 x 210 x 110 mm (not exceeding)
Enclosure ABS FR (V-O) (High Strength Moulded)
Operating Temp -10 to 50 Deg C
Storage Temp -25 to 70 Deg C
Rel. Humidity 95% non-condensing
Phasor diagram to visualise the phase sequence and lead / lag conditions
Identification of CT reversal, Phase Sequence reversal, CT / PT interchange, Low Power factor
IEC 60687
IS 14697


  • High current range clamp on CT with cable
  • Low current range clamp on CT with cable
  • Cable for ring CT
  • Cable for field & laboratory use
  • Scanner with stand
  • Snap switch for Manual Operation
  • Communication cable for downloading
  • Base computer software
  • Portable Printer Optional
  • Optical probe for DLMS Dial test