Quadtech 1920 Data Sheet 12/12

Precision LCR Meters

1900 Series

The 1900 series consists of high­performance LCR Meters designed
to perform fast, automated imped­ance measurements on a variety
of electronic components and ma­terials. These meters have a basic
accuracy specication of 0.1% for
accurate test results over a wide
frequency range, from 20 Hz to
1 MHz. Besides their 15 impedance
parameters, the 1900 meters are
also capable of measuring dc resis­tance as well as monitoring the volt­age or current in the device under
test. The units incorporate a distinc­tive sequence test mode, allowing
up to 6 uniquely different tests to be
performed quickly on a single start
command. Additionally, these me­ters include IEEE-488, RS-232, and
handler interfaces, all standard.

1910 Model

The 1910 Inductance Analyzer adds
bias current capability from 1mA to 1A.
The addition of bias current makes the
1910 ideal for measuring inductance of
power inductors under actual operating
conditions.

Page 1 of 3

1900 Series Precision LCR Meter

1920 Model

The 1920 Precision LCR Meter adds bias
voltage capability from 1mV to 2V. The
bias voltage feature is used for testing
capacitors or providing reverse bias for
testing junction capacitance of diodes and
similar components.

Features:

• 20 measurement parameters

• Frequency range: 20 Hz to 1 MHz

• Basic measurement accuracy: 0.1%

• Measurement speeds up to 40/sec

• Displays voltage and current
measurements

• Wide measurement range with 5-digit
measurement resolution

• Four-terminal kelvin connections to
maintain measurement integrity

• Programmable dc bias voltage, 0-2V

• Constant voltage (voltage leveling)

• Automatic test sequencing: up to 6
individual tests in one pass

• Menu-driven interface for user-friendly
operation

• Autoranging measurements or
manual hold

• Averaging measurements: up to 1000

• Interfaces: IEEE-488.2, RS-232, and
Handler

• Open/Short zeroing and cable­compensation

• 14 Pass/Fail bins

• Load correction

20 Measurement Parameters

The 1900 series can measure and display
any two of its 15 impedance parameters
simultaneously with a basic accuracy
of 0.1%. Additionally, these meters 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 Range

The 1900 series offers over 27,000 user­programmable test frequencies to fully
characterize devices over the range of 20 Hz
to 1 MHz.

Automated Test Sequencing

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

Programmable Source Impedance

Measurement results can vary substantially
based solely on the source impedance
of the test instrument being used. To
compare measurements made on other test
instruments, the 1900 series can have its
source impedance set at 5, 25, 50 or 100 Ω.

1900 Rear Connectors

IET LABS, INC. in the GenRad Tradition

534 Main Street, Westbury, NY 11590

www.ietlabs.com

TEL: [phone] • [phone] • FAX: [phone]

1900 Datasheet/10-24-2012

Precision LCR Meters

1900 Series

SPECIFICATIONS

Measure Parameters:

Parameter Measurement Range

Ls, Lp
Cs, Cp
|Z|, Rs, Rp, Xs, ESR
Y, Gp, Bp
D
Q

Θ

DCR
DUT AV Voltage
DUT AC Current
DUT DC Voltage
DUT DC Current

For more detailed accuracy information, see instruction manual

Test Frequency:

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

Ranging:

Automatic, Range Hold or user-selectable

Test Frequency:

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

Ranging:

Automatic, Range Hold or user-selectable

Trigger:

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

Source Impedance:

5 Ω, 25 Ω, 50 Ω, or 100 Ω

AC Test Signal:

20 mV to 1.0 V (open circuit) in 5 mV steps

DC Test Signal:

20 mV to 1.0 V (open circuit) in 5 mV steps,
5 Ω source impedance

0.001 nH to 99.999 kH ±0.5% ±-0.25% ±0.1%

1 pF to 9.9999 F ±0.5% ±-0.25% ±0.1%

0.0001 mΩ to 99.999 MΩ ±0.5% ±0.25% ±0.1%

10 nS to 9999.9 S ±0.5% ±-0.25% ±0.1%

0.00001 to 99.999 ±0.005 ±0.0025 ±0.001

0.00001 to 99.999 ±0.005 ±0.0025 ±0.001

-180.00 to 179.99° ±1.8° ±0.9° ±0.18°

0.1 mΩ to 100 kΩ ±0.5% ±0.25% ±0.2%

20 mV to 1.0 V ±(2% + 5 mV) @1kHz

1 µA to 150 mA ±(2% + 5 µA) @1kHz

20 mV to 1.0 V ±(2% + 5 mV)

1 µA to 150 mA ±(2% + 5 µA)

Basic Accuracy

Low Medium High

DC Bias Current: (1910 only)

Internal: 0 to 1 Amp in 1 mA steps

DC Bias Voltage: (1920 only)

Internal: 0 to 2.0 V in 1 mV steps

Power:

100 to 240 Vac
50 - 60 Hz
100 W max

Formats for Results:

Engineering or scientic 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

Display:

LCD Display with backlight
Pass/Fail and Status indicators

Standard Interfaces:

IEEE-488, RS-232, Handler I/O

Measurement Delay:

Programmable from 0 to 1000 ms in 1 ms
steps

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Measurement Speed:

Speed Accuracy Setting

40 meas/sec Low, No Display

25 meas/sec Low

10 meas/sec Medium

1 meas/sec High

The speed is slower at lower frequency settings and may be
affected by test conditions
DC measurements take 2x as long as AC measurements

Averaging:

1 to 1000, programmable

Median Value:

Averaged over the last three measurements

Setup Storage:

30 Single Tests
10 Sequential (6 tests in each)

Self-Test:

Veries critical instrument operation at
power-up or when selected from a menu

Other Features:

Constant-voltage mode
Cable compensation (1 m, 2 m, no cable)
Open/Short zeroing
Distortion check

Test Terminals:

Four bnc connection terminals are located
on the front panel
Optional test xture available

Mechanical:

Dimensions: 43.2 W x 13.3 H x 40.6 D cm

(17" x 5.25" x 16")

Weight: 8 kg (17.6 lbs)

Environmental Conditions:

Operating temperature: 0 to 50°C, <75% RH
Storage temperature: -40 to 71°C
Altitude: < 2000 m

IET LABS, INC. in the GenRad Tradition

534 Main Street, Westbury, NY 11590

www.ietlabs.com

TEL: [phone] • [phone] • FAX: [phone]

1900 Datasheet/05-10-2012