SR715/720 LCR METER
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ACCURACY
Conditions
At least 30 minute warm up, 23 °C ± 5 °C.
Basic Accuracy
SR715: 0.20%
SR720: 0.05%
See the Accuracy section for detailed accuracy specifications.
The table below summarizes the typical use accuracy.
Accuracy
SR720
SR715
better than 1%
0.125
Ω
< R < 16 M
Ω
0.143
Ω
< R < 14 M
Ω
2.5
µ
H < L < 25 kH
2.9
µ
H < L < 22 kH
1.25 pF < C < 12.8 mF 1.43 pF < C < 11.2 mF
better than 5%
21 m
Ω
< R < 96 M
Ω
21 m
Ω
< R < 94 M
Ω
420 nH < L < 150 kH
426 nH < L < 150 kH
0.21 pF < C < 77 mF
0.21 pF < C < 75 mF
The following conditions apply:
1) 1.0, 0.5 or 0.25 V output voltage
2) Slow or medium measurement speed
3) Q and D < 0.1 for R and C
4) Q > 10 for L
5) 100 Hz, 120 Hz or 1 kHz test frequency for R
6) 100 Hz test frequency for Lmax and Cmax
7) 10 kHz test frequency for Lmin and Cmin
FEATURES
Fixture
4-Wire Kelvin fixture for radial leaded parts with adapters for axial leaded
parts.
Protection
Protected up to 1 Joule of stored energy, 200 VDC max (for charged
capacitors).
Fused at 0.25 A output current for biased measurement.
Zeroing
Open and Short Circuit Compensation.
Compensation Limits
Short: R < 20
Ω
, Z < 50
Ω
Open: Z > 10 k
Ω
Binning
Up to 8 Pass Bins, QDR and General Fail Bins, all defined from the front
panel or over the computer interfaces. Binning setups may be stored in non-
volatile memory.
Self Test
Tests the ROM, CPU, Non-Volatile RAM, Clock Generator, A/D Converter,
Internal Bias, Multiplier, Output Drive Circuitry, Gain Circuitry, and Source
Resistances.
Store and Recall
Stores 9 Complete Instrument Setups. Recall 0 recalls Default Setup.
RS232 Interface
All instrument functions can be controlled or read over the interface.
GENERAL
Operating Conditions
0 - 50 °C, <85% relative humidity.
Power
20 Watts, 100/120/220/240 VAC, 50 or 60 Hz.
Dimensions (W x H x L)
13.5" x 4" x 14" (343 x 102 x 356 mm)
Weight
10 lbs (4.55 kg)
Warranty
One year parts and labor on materials and workmanship.
