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2830/2831 Oil & Solid Dielectric Analyzer


Home | Products | Haefely-Hipotronics | Power Factor Tester/Tan Delta | 2840 Power Factor Tester


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2840 High Precision Power Factor Tester - Overview

The Dielectric-Loss Analyzing System 2840 is a power factor tester designed for measurement of very low dielectric losses and impedances (Dissipation Factor and Power Factor) of high voltage apparatus. The instrument works on the principal of a combined bridge-vector-meter and is capable of analyzing capacitance and inductive loads with outstanding accuracy and stability certified by leading metrology institutions.

2840 High Precision Power Factor Tester

  • Accuracy capacitance 0.02%, tan δ 1 x 10-5
  • Additional signal analysis capabilities like Spectrum Analyzer, Digital Scope and Data Logger are integrated.
  • Advanced, well-engineered test equipment, optimised to the specific application.
  • Compact, reliable and EMC hardened design.
  • Integrated solution with built-in industrial computer.
  • Easy to operate - with Manual and Automated test modes, Software assisted test preparation, Execution and Trend analysis.
  • Complete Measuring System - including power supplies, standard capacitors, current comparators, test cells, application support and calibration from one supplier.
  • Wide Application Range - losses of all types of insulation including shunt reactors under unstable power frequency can be measured.
  • Upgrade - Outdated Tettex bridge models (e.g. 2877, 2801, 2821, etc.) can be easily replaced, with existing cable sets.




Max. Resolution


Dissipation Factor (Tan δ) Note 1

0 to 100

1 x 10-5

0.5% of rdg 1 x 10-5

Power Factor (cos φ) Note 1

0 to 1

1 x 10-5

0.5% of rdg 1 x 10-5

Capacitance Note 2

≥ 0.01pF


0.2% of rdg 0.01pF

Inductance Note 2

≤ 1000kH


0.1% of rdg 3mH

Test Current at Cn

20A to 300mA


0.1% of rdg 0.1A

Test Current at Input Cx

20A to 15A


0.1% of rdg 0.1A

Test Frequency

15 to 1000Hz


0.1% of rdg 0.1Hz

Apparent Power P Note 2

≥ 1mVA


0.5% of rdg 1mVA

Real Power P Note 2

≥ 1mW


0.5% of rdg 1mW

Reactive Power Q Note 2

≥ 1mvar


0.5% of rdg 1mvar



Operating Temperature

-10C to 50C

Storage Temperature

-20C to 70C

Humidity (maximum)

90% R.H non-condensing



Protected Classes, Standards

IP20, IEC 61010, CE mark
General IEC 61326-1, IEC 61000-4-X, IEC 61000-3-X, EN 55011, ANSI/IEEE C37.90

Safety Specification

VDE 0411/part 1a, IEC/EN 61010-1:2002


General Specifications


12-inch TFT, 800 x 600, integrated Touch-Screen

Operating System

Embedded Windows

Measuring Time

0.3 second/measurement at averaging = 1

Measuring Channels

Two (2) Cn and Cx


Four (4) USB ports, One (1) Ethernet 10/100 Note 4

Data Format


Power Supply

115V to 230V AC selectable, 50/60Hz

Dimensions (both models)

48cm (W) x 27cm (H) x 44cm (D)




Note 1:

Accuracy values at 50/60Hz, THD of power source < 10% for detailed range dispersion and preconditions for accuracy values see user manual.

Note 2:

Range limit is given by test current and voltage of used power source

Note 3:

These values are measured with an external device (option)

Note 4:

Allows communication respectively control of the unit

Note 5:

20A/Cn, 300mA/Cn
 Accessories and Options  see more >>

Ordering Information

Haefely Hipotronics 3490063

High Precision C, L, tan delta Measuring Bridge 2840 Instrument including: Mains cable, Operating Instructions and Test Certificate


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Macey's Electrical Pty. Ltd.
ABN 17 344 601 468
Unit 1, 49 Gavenlock Road, Tuggerah, NSW Australia 2259
Phone: +61 2 4353 4644    Mobile: 0412 678 925