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Automatic Oil Resistivity & Dissipation Factor (Tan-Delta) Test System

PE-AORDF-1
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Description

PE-AORDF-1 Fully Automatic Oil Resistivity & Tan-Delta tester is an integrated unit, consisting of Heater unit and Measuring Bridge. The Stainless Steel oil cell is to be mounted inside the HF Induction heater cubicle, and HV is engaged to it automatically. Measuring Bridge consists of AC/DC high voltage supply, Tera-Ohm meter, and precision electronic bridges to measure and derive readings for :

  • Resistance
  • Resistivity
  • Capacitance
  • Power Factor
  • Tan-delta
  • Watt-loss
  • Dielectric Constant
  • Temperature

Pre-programmed international test methods compliant to:

ASTM-D924-04, ASTM-D1169, IEC-60247, IEC-61620, IS-6262/6103, NBR 12133, VDE-0380-2, BS-5737

 

Features

  •  Complete automatic test procedure. Once test voltage is selected, it applies excitation to the 3-terminal Oil cell, measures R, C, DF, F, V, and then displays and prints the results on integrated printer
  • High Accuracy, Best resolution in its class
  • Pure Sine test operation for AC measurements and <0.1% ripple for DC measurements>
  • Heater interfaced with main unit for temperature set, control and display
  • Multiple temperature set values programmable
  • Programmable cell constant for Resistivity and Dielectric Constant
  • SF6 Gas Capacitor integrated inside for standard reference
  • 7″ color TFT display with touch screen with wireless keyboard for user convenience
  • Integrated Programmable AC & DC test voltages
  • Thermal printer for immediate printing
  • Pre-programmed 9 test sequences, and user-programmable 10 test sequences
  • USB 2.0 interface for PC
  • PC software for control and display of test results
  • On-site calibration possible for yearly schedule
  • Optional Bluetooth / RS485 / RF interface with user definable config, for Automated Laboratory setup

Specification

Input

  • Power Supply- Single Phase 220V AC 50 Hz ± 10%
  • Input pin type- Round 3-pin (L, N, E). European, Australian, US pin types available on request
  • Measuring Bridge VA- max 500VA
  • Heater VA- max 500VA

Test Voltage

  • For Dielectric Constant & Tan-Delta- 60V to 2000V AC (in steps of 1V)
  • For DC Resistivity- 100V to 2000V DC (in steps of 1V)
  • Accuracy of Voltage setting- + (1% of set value + 10V)

Atmospheric

  • Storage Temp- minus 20°C to +60°C
  • Operating Temp- minus 10°C to +50°C
  • Humidity- < 90% non-condensing

Heater

  • Temperature Range- ambient to 110°C, resolution 0.1°C
  • Temperature error- 0.5 °C (max)
  • Time to 100°C- < 20 mins

Measured Parameters

  • Tan Delta range- 0 to 4
  • Tan Delta resolution- 0.000001 (10 -6)
  • Tan Delta Accuracy- 1 % of reading + 0.00005
  • Capacitance range-  15.0 pF to 1000 pF
  • Capacitance resolution- 0.1 pF
  • Capacitance Accuracy- 0.1% of reading + 0.5pF
  • Dielectric Constant range- 1 to 20 when using a typical test cell (C ~ 50-60pF)
  • Dielectric Constant resolution- 0.001
  • Dielectric Constant Accuracy- + 0.1 %
  • Resistance Range- 1 MΩ to 10 TΩ (not calibrated above 10TΩ)
  • Resistance Resolution- 4 digits
  • Resistance Accuracy-  5% of reading over entire range, 10% beyond 1TΩ
  • Resistivity Range- 500 MΩ cm to 10000 TΩ cm (for type C empty – 55pF)
  • Resistivity Resolution- 4 digits
  • Resistivity Accuracy- 5% of reading over entire range, 10% for > 500TΩcm

Standard Accessories
  • Test equipment- 1 no*
  • Heater unit- 1 no
  • Closed cup SS Oil cell- 1 no
  • Printer roll- 1 no (already loaded), plus 1 spare roll
  • Connecting AC mains cable- 1 no
  • Connection test leads- 1 set
  • User manual (Video CD)- 1 no
  • Test certificate- 1 no
  • Warranty Certificate- 1no (Standard warranty 1 yr)