Precision Impedance Meter

  • Product No:GenRad 1689 Series
  • Manufacturer:IET LABS, Inc. 

Description:

The GenRad 1689 Precision Impedance Meter gives you the best performance for your most demanding applications, whether they be production testing, incoming inspections, component design and evaluation, process monitoring or dielectric measurements. It is a versatile, full-function, microprocessor-based passive component tester.

An alternative unit configuration, the 1689M shown above, offers 4 bnc connection terminals in place of the shielded kevin fixture and comes with bnc-to-bnc extender cable. The 1689M is easy to rack mount with an optional Rack Mount Kit (1689-9611) also available from IET Labs.

The 1689 and the 1689M RLC Digibridge is controlled by a microprocessor, allowing for many automated functions including:

• testing

• parameter selection

• test frequency and voltage selection

• limit comparison

• binning

• zeroing

The automated capabilities of this meter can be further extended with the addition of an optional IEEE488 interface (shown on the left), which allows for remote operation, programming, and data acquisition.


Features:

• The world's de facto standard  for ac resistance, low-frequency  inductance, and capacitance  measurement

• 0.02% accuracy for R, L, and C

• 0.0001 accuracy for Dissipation and Q

• 5 Impedance Parameters

• Programmable test frequencies from  12 Hz to 100 kHz for testing versatility

• Programmable test voltages from 5 mV  to 1.275 V

• Dual display featuring 5-digit readout  for RLC and 4-digit readout for D and Q

• Extremely reliable: over 30 years of  history

• Optional IEEE-488 interface available

• Built-in 4-terminal, shielded kelvin  fixture for testing axial and radial  components while protecting  measurement integrity


  • Measurement parameters: R/Q, L/Q, C/D, or C/R (series or parallel)

  • Parameter selection: Auto parameter (RLC) with manual selection

  • Accuracy: Basic RLC: ±0.02%

                     Basic QD: ±0.0002 (±0.0001 in PPM mode)

                     For more information on calculating accuracy, visit IET website for the 1689 accuracy

  • Test frequencies:

       Range: Over 500 selectable test frequencies ranging from 12 Hz to 100 kHz

       Accuracy: 0.01%

  • Binning: Pass bins: 13 pass bins for RLC

                  Fail bins: 2 fail bins, RLC & DQR

  • Sorting capabilities: Bin number, Delta RLC, Delta %, Value

  • Applied voltage: 5 mV to 1.275 V (programmable in 5 mV steps)

  • Bias: Internal: 2.0 Vdc

             External: 60 Vdc max

  • Range selection: Autoranging with manual hold

  • Measurement mode: Continuous or triggered, with averaging of up to 256 measurements

  • Measurement speed: Up to 19 measurements per second

  • Display format: Dual display featuring 5 full digit LED for RLC and  4 full digit LED's for DQ

                             Automatically positioned decimal points and minus signs where appropriate

                             Individual LED indicators for parameters, and measurement units

  • Interfaces: Optional IEEE-488.2 with updated SCPI commands

  • General features:

       Charged capacitor protection (1 joule)

       Keyboard lock (protects test conditions)

       Constant voltage mode (25  source)

       Programmed delay (1 to 99,999 ms)

       DQ in ppm

       Bin count summary

       Programmed integration time

       Median value

  • Power: 90-250 Vac    50-60 Hz     60 W max

  • Environmental conditions: Operating conditions: 0° to +50°C, <85% RH

                                               Storage conditions: -45°C to +75°C