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Time Electronics 5068 - Insulation Tester Calibrator

Insulation Tester Calibrator

Time Electronics

Category : Electrical Test Calibrators

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A precision instrument suitable for calibrating and testing general purpose insulation testers and megohmmeters with test voltages up to 2.5kV.

It is constructed in a high strength co-polymer plastic case and is powered by a rechargeable battery. This ensures full isolation from the mains and prevents stray leakage.

The insulation tester being calibrated can be tested for open circuit voltage and short circuit current. These are displayed on the digital meter mounted on the front panel. Nine selectable precision resistors provide the insulation resistance test. Also fitted are 4 fixed low resistance values for verification of the low ohm ranges and continuity.

Rugged, compact and portable, the 5068 is ideal for site calibration work. Also available is the 5069 InsCal, 10kV version.


  • 100KΩ to 10GΩ
  • Basic accuracy 1%
  • Up to 2.5kV operation
  • Battery operation
  • Fully shrouded safety connectors
  • Display of open circuit voltage
  • Display of short circuit current


Technical Specifications

Resistance (Insulation)

10GΩ, 1GΩ, 400MΩ, 250MΩ, 100MΩ, 10MΩ, 1MΩ, 500KΩ, 100KΩ

Resistance (Low ohm)

1Ω, 10Ω, 100Ω, 1KΩ

Resistance accuracy

Low Ohm = 1%. Insulation resistance: 100KΩ to 1GΩ = 1%, 10GΩ = 5%

Resistance temperature coefficient

< 250ppm/°C insulation resistance, < 50ppm/°C low ohm resistance


Selectable 5Ω

Open circuit voltage measure

0 to 2kV range, 0 to 2.5kV range, both ranges 1% of full scale accuracy

Voltage display

1.999kV full scale, and 2.50kV full scale

Voltage temperature coefficient

< 300ppm/°C

Short circuit current measure

0 to 2mA range, 0 to 20mA range, both ranges 1% of full scale accuracy

Current display

1.999mA full scale, and 19.99mA full scale

Current temperature coefficient

< 450ppm/°C


Internal battery, 6V re-chargeable NiCad, >150hrs between charges

Above accuracies specified between 15°C and 25°C

General Specifications


W270 x H246 x D175 mm



Supplied with

Safety connection leads to allow custom 4mm connectors and low resistance leads. 
Mains battery re-charger (230V 50Hz)

Optional Extras Calibration certificates traceable NPL and UKAS
Country of Origin UK


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