Condition: Used

The Agilent 34902A 16-Channel Reed Multiplexer is a plug-in module for the 34970A and 34972A mainframes. Serial number MY41013580 is visible on the label. The PCB and reed relays appear clean and in good condition with the protective clear cover present.

Included in the sale:
• Agilent 34902A 16-Channel Reed Multiplexer module
• Protective clear cover

Please note that we have multiple units in stock, and the images presented are of one of them, therefore the cosmetic condition of the exact item you will receive may slightly differ.

The Agilent (Keysight) 34902A is a 16-Channel Reed Multiplexer module designed for use with the 34970A and 34972A Data Acquisition/Switch Units. It employs reed relays to achieve high scan rates, making it ideal for high-throughput automated test applications, high-speed data logging, and monitoring tasks. Sixteen two-wire inputs switch up to 300 V, and two- and four-wire channels may be mixed on the same module. A built-in thermocouple reference junction is included for direct temperature measurements. User-provided shunt resistors are required for current measurements.

Key Features:
- 16-channel high-speed reed relay multiplexer
- Two- and four-wire (2/4-wire) scanning supported on the same module
- Built-in thermocouple reference junction
- Connects directly to the internal DMM of the 34970A/34972A mainframe
- Compatible with 34970A and 34972A Data Acquisition/Switch Unit mainframes

Module Specifications:
Number of Channels: 16
Relay Type: Reed relay
Scanning Speed: 250 ch/s
Open/Close Speed: 120/s
Input Voltage (dc, ac rms): 300 V
Input Current (dc, ac rms): 50 mA
Maximum Switching Power: 2 W
Offset Voltage: < 6 µV
Initial Closed Channel Resistance: < 1 Ω
Channel-to-Channel / Channel-to-Earth Isolation: > 10 GΩ
Wiring Configuration: 2-wire or 4-wire selectable
Thermocouple Reference Junction: Built-in
Compatible Mainframes: Agilent / Keysight 34970A, 34972A

Agilent 34902A product datasheet — key features and specifications for the 16-channel reed multiplexer module: Download PDF

Agilent 34970A/34972A Data Acquisition/Switch Unit user guide — covers 34902A module wiring, configuration and specifications: Download PDF

Agilent 34970A Data Acquisition/Switch Unit product overview — module specifications including 34902A performance data: Download PDF

Agilent 34970A specifications sheet — full module specifications table including 34902A electrical and switching parameters: Download PDF

Agilent 34970A service guide — includes 34902A relay verification and contact resistance procedures: Download PDF

Shipping & Returns Policy

Shipping Policy

• Processing Time: Orders are typically processed and dispatched within 1 business day.
• Shipping Methods: We offer Expedited Shipping to all destinations using UPS/DHL/Fedex/Royal Mail and other reputable carriers.
• Shipping Times: Mainland UK: 1-2 Business Days / Mainland Europe and USA: 2-3 Business Days / Rest of the World 5-7 Business Days.
• Shipping Costs: These are calculated at checkout based on the shipping method, destination and package dimensions.
• CUSTOMS AND TAXES: It is YOUR responsibility to liaise with customs in your country and ensure your package is cleared and any taxes are paid.
• Shipping Destinations: We ship worldwide.
• Tracking: Once your order is shipped, we will provide you with a tracking number via email.
• Insurance: All shipments are insured. In case of damage, please contact us via email within 48 hours of receiving the product with photographic evidence, please also ensure a report is logged with the delivery driver.

Returns Policy

• Return Period: In the event of an item being received which is not as specified, you can return your purchase within 14 days of delivery.
• Condition of Items: Items must be returned unused and in their original packaging.
• Return Method: All returns must be notified in writing to hello@ttinstruments.com, and the email should include the order number, date and reason for return within 14 days of delivery.
• Restocking Fees: A restocking fee of up-to 20% is applicable for items returned for any reason other than not as specified.
• Refund Method: Refunds are processed to the original method of payment within 5 business days of receiving the return.
• Exchanges: We do not offer exchanges. It will either be a replacement or a refund.
• Return Shipping Costs: Return shipping costs will be borne by the customer unless the item is not as specified, in which case we will arrange a prepaid return label.