3721

3721 is a multiplexer card that offers two independent banks of 1 x 20 two-pole multiplexers that are ideal for general purpose switching, including temperature measurements. The two banks can automatically be connected to the series 3700A mainframe backplane and optional DMM through the analogue backplane connection relays. This connection allows the mainframe to reconfigure the device as a single 1 x 40 two-pole multiplexer or to enable card-to-card expansion for even larger configurations. The device provides, in addition to the 40-channel, two fused channels are supplied for current measurements. Also, the device includes dedicated inputs that enable 40-channel of four-wire common side ohms measurements. For thermocouple type measurements, automatic cold junction compensation (CJC) is supported when used with the model 3721-ST (screw terminal) accessory. The device uses two 50-pin male D-sub connectors for signal connections.

• Analogue backplane connection relays provide easy bank and card interconnections
• Latching electromechanical relays
• 4-wire common side ohms input supports 40 channels of 4-wire ohms measurements
• 300V, 2A switched or 3A carry signal capacity (60W, 125VA)

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In addition, we have calibration services for this product (Europe Only). Visit our calibration service page to see details of what options are available.