Programmable Current Source provides constant output current.
Press Release Summary:
Featuring internal regulator and reference circuit to make output current independent of power supply variations, Model 930 accepts unregulated supply voltage from 12-32 V. Output current can be programmed by 1,000 W potentiometer or by voltage input, providing linear adjustment of output current from 0.5-50 mA. Extended range of 5-500 mA is available with use of MK 296 and MK 296HP mounting kits, which are for resistive or voltage programming of unit.
Original Press Release:
Analog Programmable Constant Current Source
Calex Mfg. Co., Inc. of Concord, California announces the availability of the Calex Model 930. The Model 930 is a programmable current source that provides an output current that remains constant with changes in load impedance. The output voltage will vary as necessary to maintain the desired value of constant current through the load.
The Model 930 has an internal regulator and reference circuit to make the output current independent of power supply variations. Supply voltage can be unregulated and can range from +12V to +32V. The output current can be programmed by a 1000 ohm potentiometer or by a voltage input. This will provide a linear adjustment of output current from 0.5 mA to 50 mA. An extended range of 5 mA to 500 mA is available with the use of a Mounting Kit. The Model MK 296 and MK 296HP Mounting Kits are for resistive or voltage programming of the Model 930. The MK296HP is a high current version with a power transistor to increase the range to 0.5A. The Model MK 298 allows adjustment of the "live zero" for 4 to 20 mA systems. The 930 and associated Mounting Kits are backed by Calex's five year warranty.
Pricing for the Model 930 is $153.00/ea (10). Pricing for the associated Mounting Kits ranges form $63.00 to $96.30 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 930 go to www.calex.com/pdf/930.pdf or email instrumentation@calex.com. The Calex corporate address is 2401 Stanwell Drive, Concord, California 94520 USA. Calex has manufacturing facilities in both Concord California and Tijuana Mexico.
