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LCR Bridge
The Model 2400 LRC Bridge measures inductance, capacitance, resistance, and dissipation factor, to a basic accuracy of ±0.25% of reading, for values up to 2000 Henrys, 2000 microfarads, and 2 MΩ, respectively. Measurements can be made at frequencies of 120 Hz or 1 kHz, as required, and either the Series Equivalent or Parallel Equivalent component values can be displayed. Range selection is fully automatic and the LRC Bridge automatically discriminates between inductors and capacitors. An internal DC bias voltage of 2 Volts can be selected for use when testing electrolytic capacitors. The operating system of the LRC Bridge provides assistance to the user, in selecting the measurement mode and frequency, to give best accuracy. Loss of basic accuracy due to measurement of the minor term in any component is also indicated. Measurements up to 9999 henrys, 9999 microfarads, and 100 MΩ can be made, although at a degraded accuracy.
Specifications
| Variables measured |
R, L, C, and D |
| Modes |
Series or parallel equivalent circuit |
| Measurement frequency |
user selectable 120 Hz or 1 kHz |
| Maximum voltage across component |
0.3 Vrms |
| Measurement update rate |
2 per second |
| Maximum time for valid reading after connecting component |
1 sec |
| Display |
4 digit, LED with automatic decimal point |
| Connection to component under test |
4-terminal via integral test fixture |
| Automatic functions |
Full auto-range |
| Auto-function distinguishes between L and C |
| User prompt to change frequency or mode to improve accuracy |
| Measurement Ranges |
R: |
0.000 Ω to 100 MΩ |
| L: |
0.0 microhenry to 9999 henrys |
| C: |
0.0 picofarad to 9999 microfarads |
| D: |
0.000 to 99.9 |
| Best Resolution |
L: |
0.1 microhenry |
| C: |
0.1 picofarad |
| R: |
0.001 Ω |
| D: |
0.001 |
| Digital outputs |
digital output of reading and range available for use with limits comparator |
| Input protection |
the input is protected against connection of capacitors of up to 10 mF charged up to 50 Volts |
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