981i (6.5kVDC Teraohmmeter/IR Tester)

Brand: Vitrek
Model Series: 98X Series

About Product

Vitrek 98X Series Teraohmmeters are designed to tackle the toughest High Resistance measurement applications.  In a never ending race for higher efficiency, electric vehicles and solar panel arrays are now operating with voltage rails up to 2.5kV.  This is no place for a 1kV tester, it’s time to step up to a Vitrek 98X Series.

Product Features

  • Highest range of IR test voltage: Choose from 6.5kVDC or 11kVDC maximum output
  • Fast IR readings: High speed output control with Dual Coldfire microprocessors and Dual DSPs to provide dwell times as low as 100ms
  • High resistance measurement range: Transfer measurement up to 150 Teraohms
  • Expansive test sequence memory holds up to 100 tests with up to 254 steps per insulation resistance test. Tests can be selected via front panel, Ethernet, RS232 or with optional GPIB
  • Multi-dwell functionality: Permits dwells at different voltage levels without having to return to zero between test steps, dramatically simplifying advanced analysis of dielectric properties
  • Pico-amp leakage measurement ensures that even the lowest leakage current levels are accurately detected and 150 Teraohm transfer and 50 Teraohm IR readings are stable and precise
  • Test specific fixture & cable compensation: Automatically calibrate out offset errors caused by test fixture insulation resistance and capacitive and leakage
  • Multi-mode IR tests: Values up to one Teraohm or more can be obtained with precision in your choice of 4 IR test modes – end on time, end on pass or end on fail or steady or rising
  • Continuously variable insulation resistance test voltage: Unlike many IR testers which limit you to 3 or 4 discrete test voltages, the 981i allows you to select the test voltage you need from 30V to 6.5kV with 1 volt resolution. The 983i provides outputs from 60V to 11kV
  • Capacitive loads: The 981i & 983i are specified for use with capacitive loads, most IR testers are not.  This means the 981i & 983i are exceptional at performing IR tests on cabling PV panels and CMC devices
  • Measure IR on grounded loads: Some DUTs cannot be isolated from earth ground, add option HSS2 (DUT Isolation Option) to make precise IR measurements on grounded loads
  • Light weight design: Better reliability, easier on your back.  Compare the 4.5 kg 981i/983i to whatever you’ve been using.  Vitrek delivers superior performance in a smaller, lighter footprint
  • Safety tested per EN 61010-1. EMC compliant to EN 61326-1
  • Manual test mode: Allows for variable voltage output during testing with continuous measurements and pass/fail indication until the user stops the test
  • Ethernet, RS232, Digital I/O & Scanner Control: All standard interfaces – Provides the highest level of test automation. GPIB available
  • Country of Origin:  USA

Product Functions

  • 98X Series are based on Vitrek’s proven DSP technology, so they have the ability to work into capacitive loads
  • 98X Series deliver output voltage range with up to 6.5kVDC for the 981i and up to 11kVDC with the 983i
  • Multi-dwell functionality (multiple steps without having to return to zero between steps)
  • High-speed testing (with dwell times as low as 100 ms)
  • Pico-amp leakage measurement (with stable and precise 50Teraohm IR readings)
  • Continuously variable IR test voltage (adjustable over the full output range of the instrument)
  • Multi-mode IR tests (four test modes: End on time, end on pass, end on fail, and steady or rising)
  • Capacitance test modes (critical for solar panels, cable harnesses and other capacitive loads)
  • In measuring IR on a multi-conductor cable harness, 981i and 983i have the ability to directly control up to four 64 channel HV scanners. That is up to 256 test points and using a PC with Vitrek’s QTE-9 software you can expand the count up to 1020 test points. The HV Switching System of choice is the Vitrek 964i, which can hold eight 8-channel switching cards for 7kV, 10kV or 15kV ratings

Product Application

  • Solar panel testing
  • Testing higher voltage IR values for electric vehicle systems
  • Testing higher voltage IR values for higher voltage solar arrays

Standard Accessories

  1. LAN Interface
  2. RS232 Interface
  3. VICL Interface
  4. Digital I/O Interface
  5. TL-980: Standard Test Lead Kit for 98X Insulation Resistance (IR) Tester
  6. NIST Traceable Calibration Certificate (Without Data)
  7. Operation Manual
  8. Power Cable

Product Options

  1. QTE-9: QT Enterprise Software Package for 98X and 95X
  2. HSS-2: Optional DUT Isolation Option
  3. TL-980: Standard Test Lead Kit for 98x Insulation Resistance (IR) Tester
  4. GPIB-9: Optional GPIB Interface
  5. RFS-95: Remote Start Foot Switch
  6. RM-1:  Rack Mount Kit

Related Catalog

98X Series Catalog

Our Company

Miko, established in 1980, is a leading instrumentation distributor in Hong Kong and China.

Over the years, we have been fully engaged in the sales and marketing of electronic T&M instruments in the territory. Our market sector coverage includes telecommunication, power, data communication, audio, broadcasting and education.