Fluke NetDaq 2640A/41A, Networked Data Acquisition Unit

Unit is tested and in good working and cosmetic condition, please see pictures!

Condition: Tested good
Serial number: 6426408

Need calibration for the unit? Please contact us and we'll send you a affordable calibration quote!

General description (Retrieved 2026, Fluke)

Note:  Unit specific features depend on installed options. Please see unit pictures for options!

The Universal Input Module makes configuration a snap
NetDAQ's Universal Input Module lets you easily measure just about any electrical or physical parameter without changing hardware or adding external signal conditioning. Any combination of dc voltage, ac voltage, thermocouples, current, RTD, resistance (2- or 4-wire), or frequency measurement can be connected directly to the input module. Fluke's proprietary signal conditioning capability is built directly into the NetDAQ unit, thus eliminating the need to purchase external conditioning modules.

The 2640A NetDAQ can measure up to 300V at up to 100 rps. The 2645A is the first instrument of its type capable of directly measuring multiple inputs of up to 50V at 1000 readings per second. With Mx+B scaling you can convert a wide range of signals (0-10V or 4-20 mA) into standard engineering units.

Using Fluke's patented technology, thermocouple reference junction compensation occurs automatically, by sensing the temperature of the input module's isothermal block. Excellent isothermal performance is achieved by thick copper layers embedded just beneath connection points, and an enclosure that protects inputs from changing environmental conditions. And strain relief protects sensor wires from accidental disconnection.

For calibration, or use in another application, you can leave your field connections set up at your site and merely plug and unplug the module when you want to move the NetDAQ unit.

Accurate time stamping
NetDAQ's non-volatile, on-board clock time stamps data as measurements are taken ensuring proper recording regardless of network traffic levels. NetDAQ's on-board memory buffers data in the event that network traffic prevents timely delivery of data to the host PC.

Choose the packaging that suits your application
The 2640A and 2545A NetDAQ units are housed in Fluke's standard, field-tough metal case designed to resist effects of high EMI and RFI environments. Both models have a simple front panel interface with just eight buttons for local monitoring of all input measurements, and checking and setting communication parameters.

If you need your NetDAQ close at hand but out of the way, either unit can be permanently mounted on a wall, or in a rack or cabinet with optional mounting accessories. 

Easy calibration
NetDAQ units are extremely stable, but when you do need to calibrate one, we've made it very easy. The optional service manual gives you simple, step by step calibration instructions. (An RS-232 interface is provided on the NetDAQ units for calibration.)

Powerful application software makes real time decisions easier.
The NetDAQ Logger for Windows software makes configuring and reconfiguring your system a snap. This intuitive software plots your data graphically, so you can get right down to making decisions. With its advanced trending capabilities, you can look at real time data in context of historical data, compare multiple channels, or zoom in on a particular time span. You can also print plots directly from NetDAQ Logger.

For further analysis or to generate reports, cut and paste either plots or data into word processor or spreadsheet programs. LabVIEW drivers for NetDAQ are also available from this site. NetDAQ's Universal Input Module lets you easily measure just about any electrical or physical parameter without changing hardware or adding external signal conditioning.

Any combination of dc voltage, ac voltage, thermocouples, current, RTD, resistance (2- or 4-wire), or frequency measurement can be connected directly to the input module.

Please contact us for the unit's datasheet!

Terms & Conditions

The sale includes equipment ONLY. 
No other parts or accessories are included unless otherwise mentioned in the sales listing. 

Goods are sold “as is, where is” basis, EXW Raisio, Finland (Incoterms 2020), if not mentioned otherwise. 

Payment & Pricing

Prices are net prices, VAT 0%. 
Full advance payment unless separately agreed otherwise. 

In case you are:

• A private purchaser / consumer inside EU, please note that VAT (tax) will be added to the total price. Tax rate (%) is determined by the destination country, same as given in the delivery address. 

• A business buyer inside EU (except Finnish companies), please provide us your valid VAT ID and the price stays the same (no VAT added) 

• Outside EU VAT is not applied 

Shipping & Handling

Delivery terms: Ex Works Raisio, Finland (Incoterms 2020) 
Buyer is responsible for taxes, duties and other possible import charges. 

International shipping service 
Parcels: Fedex and DHL  
Pallets: TNT and DHL  

All items are packaged with care to ensure full protection during shipping. 

*All courier shipments are insured based on the unit’s value and not weight* 

Most items are shipped within 2 business days of cleared payment. 
Orders placed after 10 a.m. UTC+2  on Friday will ship the following Monday. 

Warranty & Returns

A 5 Star Positive Rating is important to us! 

Contact us within 14 days after receiving the purchased unit to request a refund if you notice any failure (If the item includes warranty). Please explain the failure in details with pictures included and pack the unit to the same box it was delivered to you. We will order a return ticket for the failing unit. We will issue the full refund of the unit price after receiving the unit back to us. Please note that as a buyer you are responsible for the return shipping & handling charges.  

If the product is damaged due to the Buyer's mis-handling or return shipping process, we will not refund, and we will notify eBay for return policy abuse.  

AS-IS items are sold without warranty  
Buyer pays shipping charges for returned items.  

Contact Us

Contact us if you have any questions regarding items or shipping. 
Please visit our, EQT-Solutions’ web page to find additional assets.  

Business hours and details: We will reply your message as quickly as we can. 
However, please refer to our business hours in Finland: 8:30 - 16:00.