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