E4981B Precision Capacitance Meter
- ModelE4981B（为 E4981A 的升级替代型号）
- AttributesLCR Meter and Impedance Measurement Products
- Category KEYSIGHT > LCR Meters & Impedance Measurement Products
- BrandKEYSIGHT
- DescriptionThe Keysight E4981B precision capacitance meter is an upgraded replacement for the E4981A, supporting 120 Hz, 1 kHz and 1 MHz test frequencies with 0.042% basic accuracy. It can measure capacitance, dissipation factor, equivalent parallel/series resistanc
Detailed Introduction Technical Documents
Overview
Keysight E4981B Precision Capacitance Meter supports test frequencies of 120 Hz / 1 kHz / 1 MHz, with a basic accuracy of 0.042%, suitable for high-precision capacitance and dissipation factor measurement.
Key Features
Test Frequency: 120 Hz, 1 kHz, 1 MHz, 1 MHz ±1%, 1 MHz ±2% (Option 001)
Basic Accuracy: C: 0.042% (typical), D: 0.0003 (typical)
Test Signal Voltage: 0.1 V to 1 V (resolution 0.01 V, accuracy ±5%)
Measurable Parameters: Cp-D, Cp-Q, Cp-Rp, Cp-G; Cs-D, Cs-Q, Cs-Rs
Measurement Speed: 5 speed modes (N=1,2,4,6,8)
Compensation: Open-circuit, short-circuit, load, cable, multi-channel (256 channels) correction
Auxiliary Functions: Contact check, SLC Single Level Compensation, low capacitance reject, comparator (9 bin)
Standard Interfaces: GPIB, Gigabit LAN (LXI 1.5), USB Host (Type A), USB Device (Type Mini-B), Handler interface, Scanner interface
Applications
Production testing of multi-layer ceramic capacitors (MLCC), film capacitors and electrolytic capacitors; dielectric characteristic analysis of materials; junction capacitance measurement of semiconductor devices; quality inspection and automated production lines.
Technical Specifications
Parameter | Specification |
Test Frequency | 120 Hz, 1 kHz, 1 MHz (Option 001 adds ±1% / ±2% offset) |
Frequency Accuracy | ±0.02% |
Basic Accuracy | C: 0.042% (typical), D: 0.0003 (typical) |
Measurement Parameters | Cp-D, Cp-Q, Cp-Rp, Cp-G；Cs-D, Cs-Q, Cs-Rs |
Test Signal Voltage | 0.1 V ～ 1 V (Resolution 0.01 V, Accuracy ±5%) |
Output Impedance | 120 Hz / 1 kHz: 0.3 Ω / 1.5 Ω / 20 Ω (depending on range) |
Capacitance Measurement Range | 120 Hz: 10 nF ～ 1 mF |
Display Range | Cs, Cp: ±1 aF ～ 999.9999 EF |
Measurement Speed (N=1) | 120 Hz: approx. 10 ms (Analog) |
Number of Averages | 1 ~ 256 |
Trigger Delay | 0 ~ 1 s (Resolution 0.1 ms) |
Accessories
Standard Accessories: Power cord, Quick Start Guide, Calibration Certificate
Optional Accessories:
Frequency Option 001 (Adds 1 MHz ±1% / ±2%)
Frequency Option 002 (120 Hz / 1 kHz only)
Test Cables: 16048A (1 m), 16048D (2 m)
Interfaces
Standard Interfaces: GPIB, Gigabit LAN (10/100/1000 BaseT, LXI 1.5), USB Host (Type A), USB Device (Type Mini-B), Handler Interface, Scanner Interface
Physical Specifications
Dimensions: 370 mm (Width) × 105 mm (Height) × 405 mm (Depth) (nominal)
Weight: 4.3 kg (nominal)
