1920 QuadTech LCR Meter Used

Test Frequency:

• Range: 20Hz to 1MHz, Continuous
• Resolution: 1Hz from 20Hz to 1kHz,
• 4 digits >1kHz
• Accuracy: ± (0.02% +0.02 Hz)

Measurement Speed:

• Speed: Accuracy Setting
• 40 meas/sec: Low, No Display
• 25 meas/sec: Low
• 10 meas/sec: Medium
• 1 meas/sec: High

Ranging:

• Automatic, Range Hold or user selectable

Trigger:

• Internal (automatic)
• External (via RS-232, IEEE-488.2 or Handler)
• Manual

Source Impedance:

• 5Ω, 25Ω, 50Ω, 100Ω

AC Test Signal:

• Voltage: 20mV-1.0V (open circuit), 5mV steps

DC Bias Voltage:

• Internal: 0 to 2V in 1mV steps

Display:

• LCD Display with backlight
• Pass/Fail and status indicators

Results Formats:

• Engineering or scientific format
• %Deviation from nominal of primary parameter
• Deviation from nominal of primary parameter
• Pass/Fail
• No Display Mode for maximum throughput

Sequencing: 

• Displays up to 6 sequential test results, primary and/or secondary

Standard Interfaces:

• IEEE-488.2, RS-232, Handler

Measurement Delay:

• Programmable from 0 to 1000ms in 1ms steps

Averaging: 

• Programmable from 1 to 1000

Median Value:

• Averaged over last three measurements

Setup Storage:

• 30 Single Tests
• 10 Sequential (6 tests in each)

Other:

• Constant Voltage Mode (voltage leveling)
• Cable Compensation (1M, 2M, no cable)
• Open/Short Zeroing
• Distortion Check

Calibration:

• Recommended interval 1 year
• NIST traceable calibration
• Built-in automatic calibration procedure

Usage & Cal Data:

• Displays last calibration date, standard values used in calibration

Self Test:

• Verifies critical instrument operation at power-up or when selected from menu

Test Terminals:

• Front panel, four terminal (BNC)
• Optional Test Fixtures Available

Mechanical:

• Bench mount with tilt bail
• Rack mount kit optional

Dimensions:

• (w x h x d): 17 x 5.25 x 16 in (432 x 133 x 406 mm)

Environmental:

• Meets MIL-28800E, Type 3, Class 5, Style E & F
• Operating: 0° to +50°C
• Humidity: < 75% for 11° to 30°C operating
• Storage: -40° to +71° C

Power:

• 100-240 VAC 50/60 Hz, 100 W Max

Applications

• Fast Production Testing of LCR Components and Materials
• AC Impedance & DC Resistance Measurements
• Component Characterization Over a Wide Frequency Range
• Component Screening, Evaluation and Design

The 1920 is a high performance LCR Meter designed to perform fast, automated impedance measurements on a variety of electronic components and materials. The instrument has a basic accuracy specification of 0.1% for accurate test results over a wide frequency range, from 20 Hz to 1 MHz. Besides 15 impedance parameters the 1920 is also capable of measuring DC resistance as well as monitoring the voltage across or current through the device under test. The unit incorporates a distinctive sequence test mode, allowing up to 6 uniquely different tests to be performed quickly on a single start command. Additionally, the 1920 includes IEEE-488, RS-232, and handler interfaces, all standard.

20 Measurement Parameters
Measure and display any two of 15 impedance parameters simultaneously, with a basic accuracy of 0.1%. Additionally, the 1920 can measure the DC resistance, or display the current through or voltage across a test device ensuring the operator of the real test conditions.

Wide Frequency
Over 27,000 user programmable test frequencies to fully characterize devices over the range of 20 Hz to 1 MHz.

Automatic Test Sequencing
For increased productivity and throughput the 1920 can perform up to six different tests in sequence with a single push of the start button. Each test can have different measurement parameters, test conditions and limits.

DC Bias Voltage
The instruments internal DC bias voltage source, programmable from 0 to 2 V in 1 mV steps, allows capacitors to be tested under real DC bias conditions.

Setup Storage/Recall
The test operator has the ability to store and recall, from internal memory, up to 30 single test setups and 10 sequential setups (six tests in sequence). The front panel can be locked out, with password protection, to ensure that procedures are run the same way every time.

Load Correction
Substantially improves instrument accuracy by allowing the operator to specify the value of a known standard, measure it, and apply a correction to ongoing measurements.

Programmable Source Impedance
The operator is able to set instrument source impedance at 5, 25, 50 or 100 ohms, an important feature when comparing measurements to those made on other testers. Measurement results can vary substantially based solely on the source impedance of the tester being used.