Memoq MR-720 Uživatelský manuál stáhnout pdf (Strana 9)

SR715/720 LCR METER

vii

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 MΩ 0.143 Ω < R < 14 MΩ

2.5 µH < L < 25 kH 2.9 µH < L < 22 kH

1.25 pF < C < 12.8 mF 1.43 pF < C < 11.2 mF

better than 5% 21 mΩ < R < 96 MΩ 21 mΩ < R < 94 MΩ

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 kΩ

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 - 35 °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.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 108 109

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