Keithley expands switch/multimeter line
-- Test & Measurement World, 9/1/2008 2:00:00 AM
Keithley Instruments has announced an expansion of its Series 3700 system switch/multimeter and plug-in card family with the addition of two new plug-in cards, the Model 3724 dual 1X30 solid-state FET relay multiplexer card and the Model 3750 multifunction I/O card.
The Model 3724 multiplexer card features scanning speeds of greater than 1000 channels/s, including measurement, and switch-only scan rates of greater than 1200 channels/s. The card also offers 200-V, 0.1-A switch/carry capacity with offset current of less than 10 nA. The solid-state relays can be automatically configured into either a dual 1x30 or a 1x60 multiplexer. The card also features temperature-measurement capability with automatic CJC sensors when used with the optional screw terminal accessory.
The Model 3750 multifunction I/O card features 40 digital I/O channels with high-current driver outputs that can sink up to 300 mA, allowing them to drive relays directly without any interface circuitry. It also features two programmable analog outputs offering both voltage- and current-programmable isolated analog outputs including 0 to 20 mA, 4 to 20 mA, or ±12 VDC. It also comes with four totalizers/counters with 32-bit resolution and is gated with a 1-MHz input rate.
Prices: Model 3724—$1595; Model 3750—$1250. Keithley Instruments, www.keithley.com.
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