Stanford SR720 LCR Meter
multi-frequency passive components measuring instrument (Distributed only in Germany.)
Specifications in Brief
| Measurement modes | Auto, R+Q, L+Q, C+D, C+R |
| Equivalent circuit | Series or Parallel |
| Parameters displayed | Value, Deviation, % Deviation or Bin Number. Deviation and % Deviation are calculated relative to a stored value. |
| Averaging | 2 to 10 Measurements |
| Display Range | |
| R+Q | |
| R | 0.0001 Ohm - 2000 MOhm |
| Q | 0.00001 - 50 |
| L+Q | |
| L | 0.0001 mH - 99999 H |
| Q | 0.00001 - 50 |
| C+D | |
| C | 0.0001 pF - 99999 mF |
| D | 0.00001 - 10 |
| C+R | |
| C | 0.0001 pF - 99999 mF |
| R | 0.00001 Ohm - 99999 kOhm |
| Test conditions | |
| Test frequency | Fixed frequencies at 100 Hz, 120 Hz,1 kHz, 10 kHz (SR715 and SR720) 100 kHz (SR720 only). |
| Frequency accuracy | ±100 ppm. |
| Drive voltage | Preset levels: 0.10, 0.25, and 1.0 Vrms. Vernier: 0.1 to 1.0 Vrms with 50 mV resolution. |
| Drive levels accurarcy | ±2%. |
| Measurement rate | Slow, Medium, Fast: 2, 10, or 20 measurements per second at test frequencies of 1 kHz and above and about 0.6, 2. 4, or 6 measurements per second at 100 Hz and 120 Hz. |
| Ranging | Auto or Manual |
| Triggering | Continuous, Manual, or Remote over RS-232, GPIB or Handler Interface |
| Bias voltage | Internal: 2.0 VDC ±2 %, external: 0 to +40 VDC, fused @ 250 mA |
| Accuracy | |
| Basic accuracy | SR715: 0.20 %, SR720: 0.05 % (see graphs in datasheet for important details!) |
| 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 (for charged capacitors). Fused at 0.25 A output current for biased measurement. |
| Zeroing | Open and short circuit compensation. |
| Compensation limits | Short: R <20 Ohm, Z <50 Ohm, Open: Z >10 kOhm |
| Binning | Up to 8 pass bins, QDR and general fail bins, defined from the front panel or over the computer interfaces. Binning setup may be stored in non-volatile memory. |
| Store and recall | Stores 9 Complete Instrument Setups. |
| RS-232 interface | All instrument functions can be controlled or read over the interface. |
| GPIB and handler | IEEE-488 interface optional, Handler interface is a 25 pin connector, positive logic for binning and control |
| General | |
| Operating conditions | 0 to 50 °C, <85 % relative humidity. |
| Power | 20 Watts, 100/120/220/240 VAC, 50 or 60 Hz. |
| Dimensions | 13.5 " W x 14 " L x 4 " H |
| Weight | 10 lbs |
| Warranty | One year parts and labor on any defects in material or workmanship. |
