TAN DELTA SYSTEM EW-188 is specially designed for quality control of enameled wire. Tangent delta and the tangent data temperature Characteristic are the concepts often discussed in connection with enameled copper wire. The precise measurement of tangent delta is of higher importance for the characterization of hardening state of the enameled insulation. If an alternating voltage is applied to wire enamel, a small current passes through it which is phase shifted. A yard stick for this phase shift is tangent delta. In EW-188 a measuring frequency of 1 KHz sine voltage is applied to the sample. The result is phase shift between voltage and current which is proportional to tangent delta. This phase shift is detected with very precise phase detector circuit. EW-188 can be used for single point measurement as well as determinations of bending point. The temperature can be set anywhere upto 300 degree Celsius for single point measurement. Tan delta and temperature are displayed simultaneously. Further more the curve measurement can be automated on a Laptop PC through suitable windows based software.


  • Power Supply : 230V AC +/-10%, 50Hz +/-3 %

  • Test Voltage : 10 VAC Peak to Peak

  • Test Frequency : 1KHz

  • Tan Delta Range : 0.00% to 19.99%

  • Indication : 3 ½ Digit Panel Meter

  • Resolution : 0.01%

  • Accuracy : +/-1% of reading O

  • Temperature Range : Ambient to 300 C

  • Indication : 3½ Digit Panel Meter

  • O Resolution : 1C

  • Accuracy : +/- 1% of reading.

  • Temperature Control : PID

  • O Accuracy : +/- 1 C

  • Cabinet : Powder coated sheet metal table top cabinet with lifting handles

  • Controls : Power ON, ZERO/OPERAT

  • Printer : External Inkjet Printer

  • Port : USB communication port

  • Software : Windows based Data Acquisition software

  • Display : Large Backlit LCD Display to display Test Menu, Set up
  • Screens, Test Result

  • Storage Memory : More than10000 Test Results

  • Safety Standards : Meeting IEC 61010-1

  • Accessories : Sample Holder, Standard Capacitor, Transport case.
  • Users/instruction manual O

  • Temperature Range : Operating 0 50 C s
  • O O Humidity Range : 80% Rh at 40 C Storage 5 to 70 C

  • Digital readout for temperature & tan delta.

  • Software based PID temperature control.

  • Windows based user friendly software.

  • USB communication port for laptop connection.

  • Multiple graph comparison on screen.

  • Suitable for single point as well as bending point measurement.

  • Fast curve plotting.

  • Auto balancing

WIRE TAN DELTA Model: EW-188

WIRE TAN DELTA Model: EW-188