product id: 72249
60 two-pole channels or 30 four-pole channels for general purpose switching Automatic CJC for temperature measurements when used with 3720-ST accessory Analog backplane connection relays provide easy bank and card interconnections 300V, 1A switched or 2A carry signal capacity; 60W, 125VA Screw terminal connections provided with removable 3720-ST accessory Relay closures stored in onboard memory Latching electromechanical relays
The Model 3720 offers two independent banks of 1x30 two-pole multiplexers. It is ideal for general purpose switching, including temperature measurements. The two banks can automatically be connected to the Series 3700 mainframe backplane and optional DMM through the analog backplane connection relays. This connection allows the mainframe to reconfigure the card to a single 1×60 two-pole multiplexer or to enable card-to-card expansion for even larger configurations.
Other features of the Model 3720 include its ability to be reconfigured to coordinated four-pole operation for additional measurement flexibility. Furthermore, the Model 3720 supports thermocouple- type temperature measurements when used with the Model 3720-ST (screw terminal) accessory providing automatic cold junction compensation (CJC).
The Model 3720 uses two 78-pin male D-sub connectors for signal connections. For screw terminal or automatic CJC, use the detachable Model 3720-ST accessory.
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