AC LCR meter

DCbenchtop

The LCR multi-channel test device is a modular 10-channel solution for dielectric and resistance measurement, designed for integration with impedance analyzers and high-resistance meters. It supports high-speed switching and high-speed I/O control for automated multichannel testing.

Features

• Compatible with impedance analyzers and high-resistance meters
• Optical coupler relays: high switching speed and long life
• Wide bandwidth with low inter-channel error
• Switching time: 1 ms
• High-speed I/O output control

Application case

• Multichannel AC impedance test system

PC software

• LCR multiplex test software for PC
• Software functions: set test conditions (range, frequency, comparator, etc.) for all channels; enable/disable channels; perform looped scan tests; save test conditions locally

Open/Short compensation

• Supports open and short compensation for each channel
• If an LCR's internal setting switching function is used (which requires long switching time), the software performs open/short compensation calculation to preserve high-speed scan time

EXT. I/O signal table

• No. 1 — Signal name: SCAN; I/O: IN; Function: Start/advance scanning; Logic: Edge
• No. 2 — Signal name: (reserved); I/O: IN; Function: -; Logic: -
• No. 3 — Signal name: ISO_5V; I/O: -; Function: Insulation power supply +5V (-5V) output; Logic: Edge
• No. 4 — Signal name: CLOSE; I/O: OUT; Function: Channel closing end; Logic: Pulse
• No. 5 — Signal name: (reserved); I/O: OUT; Function: -; Logic: -
• No. 6 — Signal name: SCAN RESET; I/O: IN; Function: Scanning action reset; Logic: Edge
• No. 7 — Signal name: (reserved); I/O: IN; Function: -; Logic: -
• No. 8 — Signal name: ISO_COM; I/O: -; Function: Insulation power supply common terminal; Logic: -
• No. 9 — Signal name: (reserved); I/O: OUT; Function: -; Logic: -

Technical specifications

• Power supply: industrial frequency; rated supply voltage: AC 240 V (±10%); maximum rated power: 30 VA
• Display: power indicator, error indicator, remote indicator
• Interface: USB, LAN, RS-232C
• Dimensions & weight: 340 (W) × 190 (H) × 180 (D) mm (excluding protrusions), 2.4 kg
• Accessories: power cord, instruction manual
• Options: connection cable L2004; RS-232
• Supported instruments: Keysight, Tonghui, Wayne Kerr, HIOKI, Dexinmag, etc.
• Number of channels: 10 channels
• Loop resistance: 0.5 Ω (input-output terminals, reference value)
• Capacitance: 0.2 pF (between input terminals and OFF channels, with Guard, reference value)
• Contact specification: maximum input voltage 1000 V
• Allowable current capacity: 200 mA (AC peak / DC)
• Switching time: 1.0 ms
• Insulation resistance: 100 TΩ or more (Channel - Channel shielding layer - Between shells, excluding LCUR)