You have entered a value in the highlighted fields below that contain invalid characters. Please revise your selection using valid characters only.


3721 - 

Test Accessory, Multiplexer Card, Keithley 3700 & 3700A Series Mainframes

3721 - Test Accessory, Multiplexer Card, Keithley 3700 & 3700A Series Mainframes

The actual product may differ from image shown

Manufacturer Part No:
Newark Part No.:
Technical Datasheet:
3721   Datasheet
See all Technical Docs

Product Information

Multiplexer Card
Keithley 3700 & 3700A Series Mainframes
Find similar products Choose and modify the attributes above to find similar products.

Product Overview

The 3721 is a Multiplexer Card 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)


Industrial, Signal Processing, Test & Measurement

Associated Products

Compare Selected

Related Searches

US continental orders over $49 and under 50 pounds may qualify for free ground shipping. Click the link for the full Terms and Conditions of the offer.

0 In stock

Not Normally Stocked

Check Stock & Lead Times

More stock available week commencing 10/14/19


Pricing is unavailable. Please contact customer services.

Price for:
Multiple: 1 Minimum: 1
Quantity Price Your Price
1+ $1,190.00

Pricing is unavailable. Please contact customer services.

No longer stocked:: No Longer Manufactured::
Add to Cart Back Order Pre-Order
Restricted Item
Enter Your Part No/Line Note
Total Price:
Total Price: ( )
Total Price: --

Customer Reviews

Customer Q&A Exchange


Like to see information about this product from other customers?

 Read discussions, blogs, documents from our community members.


Select document type(s) you want to see and click “Apply Filters” button
Post a question to one of our experts or start a discussion and get responses from supplier experts and fellow engineers in our community.