Product outline

LC240 is a low-drift loadcell converter designed for loadcells.
With a U300DC preamplifier with a proven track record in stability adopted for the head amplifier, it realizes low drift and low noise features.
The bridge excitation power supply can be adjusted to 6 different levels besides the large capacity that allows up to 4 loadcells to be driven in parallel. LC240 is capable of loadcell converter that is standard equipped with the calibration function and current output.

Specifications

Excitation voltage 10 V DC ±0.5%, Output current: within 120 mA……Standard specification
(Up to 4 loadcells at 350 Ω can be parallel-connectable.)
2.5, 2.9, 4, 5, 6,6 V DC ±0.6%
(Switching over via DIP switch)
Output current: within 60 mA
Zero adjustment range 0 to approx. 2 mV/V
Coarse adjustment: 16-step rotary switch
Fine adjustment: 20 turn trimmer potentiometer
Gain adjustment range 0.45 mV/V to 3.0 mV/V, 0.225 mV/V to 1.5 mV/V
(Range can be changed by selecting an internal switch)
Coarse adjustment: 16-step rotary switch
Fine adjustment: 20 turn trimmer potentiometer
Accuracy Non-linearity: within 0.01%/FS
Zero drift: within 0.25 μV/°C RTI
Gain drift: within 50 ppm/°C
Noise: within 0.2 μVp-p RTI (1 Hz)
Output signal Voltage output: 0 to ±10 V, Load resistance: 2 kΩ or more, Output resistance: 0.2 Ω or less
Current output: 4 to 20 mA, Load resistance: 500 Ω or less
Low-pass filter Low-pass filter (-6 dB/oct.)……Standard specification
Approx. 1 Hz/-3 dB
Calibration value 1 mV/V ±0.2%.)……Standard specification
Power supply voltage 100 V AC ±10%, 50/60 Hz
Power consumption Approx. 5 VA
Operating conditions Temperature: Working temperature range -10 to +40°C
Humidity: 85% RH or less (non-condensing)
Dimensions 44.6(W)×110(H)×185(D) mm (protruding parts not included)
Weight Approx. 820 g
Attachments AC input cord・・・1
Spare fuse (0.5 A)・・・1
Mini-driver・・・1
Crimping terminal・・・11
Operation manual・・・1


* Nonstandard specifications can support the following: (Please specify when ordering.)
・Current output: 2 -10 mA, Load resistance: 1 kΩ or less
・Filter: 10, 100, 1 kHz , other
・Calibration value: 0.5 mV/V

Option

Nonstandard specifications are prepared for LC240. Please specify them when ordering.

Configurable parameter Standard specification Changeable specification
Current output 4 to 20 mA
Load resistance: 500 Ω or less		 2 to 10 mA
Load resistance: 1 kΩ
Filter 1 Hz 10 Hz, 100 Hz, 1 kHz, other
Calibration value 1 mV/V 0.5 mV/V

Optional accessories

Model
POT03 Potentiometer for external zero adjustment

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