Surface Insulation Resistance Testing
AutoSIR2+ - SIR Testing

Following over 2 years of intense research and development, we are proud to introduce the next generation of equipment used to measure changes in Surface Insulation Resistance.

The new AutoSIR2+™ system represents a dramatic improvement over existing SIR test alternatives, and its shielded precision electronics allows state-of-the-art accuracy resistance measurements to be made up to 1014 Ω.

One AutoSIR2+ chassis can hold between 1 to 16 measurement cards and can monitor up to 256 x 2-point test patterns or 78 x 5-point test patterns, or 32 x 9-point test patterns at selectable intervals from minutes to days. Each channel is current limited (1 M Ω), which encourages growth of dendrites for failure analysis. The frequent monitoring capability provides a full picture of the electrochemical reactions taking place on a circuit assembly, and provides early trend analysis enabling tests to be curtailed, thus saving considerable test time and money.

Key Features

  • Measurements from all 256 Channels can be taken in <10 seconds
  • Applied Voltage: +1V to 100V
  • Measurement Range: 106 Ω to 1014 Ω
  • Measurement Method: Continuous on all selected channels
  • Measurement Test Intervals: Fully selectable from minimum of 1 minute
  • Capable of testing to all existing test specifications – IPC – IEC – JNC and other user specifications
  • Future proofed design
  • AutoSIR2+ is available with 64, 128 or 256 channel configurations
  • On connection the system runs a self test
  • Adaptable and flexible software operating with Windows 7, 8 &10

Technical Specifications

Number of Channels 64 or 128 or 256
Measurable range of insulation resistance 106 to 1014 Ω
Internal Bias Voltage

0V; 3.3V; 5V; 10V; 12.5V; 15V; ±50V, ±100V

External Bias Voltage 1V to 100V free selection external 1V to 1250V
Measurement Method Continuous on all selected channels
Measurement Test Intervals Fully selectable from minimum of 30 seconds
Measurement Time <15ms/channel
Maximum Test Duration Unlimited
Current measuring cable Fully shielded
System status LED'S Power
Low resistance
Temperature and humidity
Bias Voltage Out of Range/Failure
Data collection Sampling Time, Elapsed Time,
Resistance, Current, Applied Voltage,
Temperature, Humidity
Applicable OS Windows® 7, 8 & 10
Power requirment 110V/230V Switchable mains
single phase
Dimensions 10.5 kgs (371 Ibs)


AutoSIR2 and AutoCAF2 Accessories

Gen3 offers custom Test Racks as accessories to the AutoSIR2+ & CAF2+. Contact us for more details.

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