Product News: Electronic Components & Devices

Signal Conditioner has 0-30 mV input range.

Press Release Summary:

Signal Conditioner has 0-30 mV input range.

Mar 12, 2009 - Compatible with variety of strain gage based load cell or pressure transducer outputs, Model 4720 is designed for load cell, strain gage, or single-ended analog amplification and filtering. Measuring 3.78 x 1.06 x 1.65 in., unit has built-in 10 V excitation supply for driving 350 W bridge. DIN rail-mount, self-contained dc powered module has filtered output of 4-20 mA with frequency response of dc to 10 Hz.

Original Press Release

Model 4720 Low Cost 4-20mA Load Cell and Strain Gage Signal Conditioner

Press release date: Feb 24, 2009

Calex Mfg. Co., Inc. of Concord, California announces the availability of the Calex Model 4720. The Model 4720 is a DIN Rail mount, self-contained DC powered module designed for load cell, strain gage, or single ended analog amplification and filtering. It contains a precision instrumentation amplifier, filtered output and a built-in excitation supply. The 4720 provides a cost effective solution for applications such as conveyor weighing systems, hoppers or tank farms.

The 0 to 30mV input range makes it compatible with most strain gage based load cell or pressure transducer outputs. The built-in 10V excitation supply is capable of driving a 350 ohm bridge. The filtered output of the 4720 is 4 to 20mA with a frequency response of DC to 10Hz. Connections are made via easily accessible screw clamp terminal blocks. Zero and Span adjustment potentiometers are located externally as well for easy access. Overall dimensions are 3.78"L x 1.06"W x 1.65"H. The 4720 is backed by Calex's five year warranty.

Pricing for the Model 4720 is $157.50/ea (10). Units are available from stock to 6 weeks. For more information, contact Calex Mfg. Co., Inc. via phone 925-687-4411 / 800-542-3355 or fax 925-687-3333. For a complete data sheet on the Model 4720 go to or email instrumentation@ The Calex corporate address is 2401 Stanwell Drive, Concord, California 94520 USA. Calex has manufacturing facilities in both Concord California and Tijuana Mexico.

CALEX Mfg. Co., Inc. 2401 Stanwell Drive, Concord, CA 94520-4841 800-542-3355 (925) 687-4411 FAX: (925) 687-3333 Email:

Contact: Michael McNally Phone: (605) 332-5283