NetDAQ Networked Data Acquisition Unit

NetDAQ Networked Data Acquisition Unit
NetDAQ Networked Data Acquisition Unit
NetDAQ Networked Data Acquisition Unit
NetDAQ Networked Data Acquisition Unit

NetDAQ Data Acquisition Units give you a powerful combination of hardware and software that's ideal for small-to-medium scale process monitoring and test systems. They answer the escalating need for measurement, recording, and analysis tools that enable you to improve quality, maximize process efficiency and meet regulatory requirements. Building blocks of 20 channels can be expanded into integrated systems of up to 400 channels. Choose between two models for speed up to 1000 rps and accuracy up to 0.01%. All NetDAQs utilize Fluke's patented Universal Input Module which accepts any combination of analog input types for each of its 20 channels - without the need for external signal conditioning. Simply pre-wire the Universal Input Module to directly measure temperature, dc volts, ac volts, resistance, 4-20 mA, and frequency. (For more information refer to the Universal Input Module in this section.)

Distributed NetDAQ systems plug right into your existing networks to send data directly to a PC. This saves the cost of setting a new network and allows multiple users to simultaneously view data in real time. A NetDAQ unit can also be used as a portable dedicated system connected to a notebook computer for maintenance, product validation, research, and troubleshooting applications.

Features at a glance:

  • Data acquisition, up to 1,000 readings per second
  • 20 analog input channels expandable up to 400 channels
  • Extensive optional plotting and trending capabilities
  • Optional wall, cabinet, or rack mounting
  • May be connected to Ethernet networks
  • Replaces chart recorders

System configuration
Set up your NetDAQ system the way you want it. You can set up your NetDAQ system in several different ways. Configure an isolated system, daisy-chaining as many as 20 NetDAQ units to your PC with a high-speed communication line. This is a quick, simple way to send real time data directly to a PC.

Or, add NetDAQ units directly to your company's network. Sharing the network cabling and hardware that's already installed saves you time and expense. And, if you wish, all the users on your network have an easy way to access the data you're collecting.

A third configuration option is to add an isolated NetDAQ system to your company's network. This method isolates your data acquisition application from your company's network while still providing the advantages of multi-user viewing. High-speed applications won't be slowed down by network operations, and critical applications are completely protected from network failure.

High-speed communication makes it easier to get results. No matter how you set up your data collection system, high-speed networked communication offers you a number of benefits. It gives you the ability to implement distributed applications with NetDAQ units in multiple locations. In these applications, multiple PC users can monitor data, in real time, as it is collected. Support for up to 3,000 readings per second (rps) from multiple instruments keeps throughput high. And you're ensured of highly reliable results, even over long distances. 

Choose the level of performance you need
NetDAQ systems are modular and expandable up to 400 channels. With the 20-channel units as building blocks, you can buy the number of channels you need for your application. Later, add units if you need them.

Because every application is different, we offer a selection of accuracies and measurement rates to match your application needs. The 2640A offers 0.01% V dc - 0.3ºC TC accuracy and 18 bit resolution, scanning 6 - 100 channels per second. The 2645A can scan at 48 to 1000 channels per second with 16 bit resolution and 0.01% V dc - 0.6ºC TC accuracy.

All models offer a totalizer input channel which counts up to 4,294,967,295 "on/off" events. This channel is continuously sampled and is recorded with each scan of the other input channels.

Each analog and calculated channel has two user-defined alarm limits which can be independently configured as high, low, or off, and assigned to one of the eight digital I/O lines which can initiate action based on alarm conditions. Or these digital I/O lines can be used independently as inputs for contact closures, switches, or TTL levels.

Application Software
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.
 

System Requirements:

  • 486 (or better) PC
  • Windows (32-bit)
  • 4 MB RAM
  • 5 MB Free disk space

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.
Fluke's proprietary signal conditioning capability is built directly into the NetDAQ unit, thus eliminating the need to purchase external conditioning modules. 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. 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. 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.)

2640 NetDAQ
DC Volts
Range: 90 mV to 25%/300V
Resolution: 0.3 µV to 1 mV
Accuracy(3-Sigma): 0.01 %*
AC Volts
Range: 300 mV to 25%/300V
Resolution: 10 µV to 10 mV
Accuracy(3-Sigma): 0.3%*
Resistance
Range: 300Ω to 10 MΩ
Resolution: 300 mΩ to 3MΩ
Accuracy(3-Sigma): ± 0.015%
Frequency
Range: 15 Hz to 1 MHz
Resolution: 0.01 Hz to 100 Hz
Accuracy(3-Sigma): ± 0.05%
RTD (Pt 100)
Range: -200 to 600ºC
Resolution: 0.003ºC
Accuracy: (3-Sigma)± 0.06ºC*
J Thermocouples
Range: -100 to 760ºC
Resolution: 0.02ºC**
Accuracy: (3-Sigma)± 0.35ºC*
K Thermocouples
Range: -100 to 1372ºC
Resolution: 0.02ºC**
Accuracy: (3-Sigma)± 0.4ºC*
T Thermocouples
Range: -100 to 400ºC
Resolution: 0.02ºC**
Accuracy: 0.3ºC *
Other Thermocouple types R, S, B, C, E, N

*Total instrument accuracy for 90 days following calibration and ambient temperature range of 18 to 28 Degrees C. Includes A/D errors, linearization conformity, initial calibration error, isothermality errors, reference junction conformity and power line voltage effects within the range from 107V ac to 264V ac.
**Resolution is 0.02°C or 0.04°F over the useful range of base metal thermocouples (J, K, T, E, N) and 1°C or 2°F resolution for types R, S, B, and C with slow scan.

2645 NetDAQ
DC Volts
Range: 90 mV to 50V
Resolution: 3 µV to 10 mV
Accuracy: 0.01 %*
AC Volts
Range: 30V to 50mV
Resolution: 10 µV to 1 mV
Accuracy: 0.3%*
Resistance
Range: 300Ω to 3 MΩ
Resolution: 10 mΩ to 100Ω
Accuracy: 0.02 %*
Frequency
Range: 15 Hz to 1 MHz
Resolution: 0.01 Hz to 100 Hz
Accuracy: 0.05%
RTD (Pt 100)
Range: -200 to 600ºC
Resolution: 0.03ºC
Accuracy: 0.16ºC*
J Thermocouples
Range: -100 to 760ºC
Resolution: 0.2ºC**
Accuracy: 0.7ºC*
K Thermocouples
Range: -100 to 1372ºC
Resolution: 0.2ºC**
Accuracy: 0.8ºC*
T Thermocouples
Range: -100 to 400ºC
Resolution: 0.2ºC**
Accuracy: 0.7ºC*
Other Thermocouple types
  R, S, B, C, E, N

*Total instrument accuracy for 90 days following calibration and ambient temperature range of 18 to 28 Degrees C. Includes A/D errors, linearization conformity, initial calibration error, isothermality errors, reference junction conformity and power line voltage effects within the range from 107V ac to 264V ac.
**Resolution is 0.2°C or 0.4°F over the useful range of base metal thermocouples (J, K, T, E, N) and 1°C or 2°F resolution for types R, S, B, and C with slow scan.

General Specifications
Channel Capacity
Analog inputs: 20
Computed channels: 10
Digital I/O & Alarm Outputs: 8 total
Totalizer: 1
Computed Channels 10 computed channels can be created by processing analog input channels and other computed channels with the following methods: Addition, subtraction, multiplication, division, log, natural log, exponent, square root, absolute value, integer function, average (average of a group of channels), difference (difference between any two channels), difference (between a channel and a group of averaged channels)
Scan Speed
2640A: Slow:
  6 channels/second nominal
  Medium:
  41 (50 Hz), 48 (60 Hz) channels/second nominal
  Fast:
  100 channels/second nominal
2645A: Slow:
  45 (50 Hz), 54 (60 Hz) channels/second nominal
  Medium:
  200 channels/second nominal;
  Fast:
  1000 channels/second nominal
Analog to Digital Converter
2640A: Multi-slope type, linear to 18 bits.
2645A: Multi-slope type, linear to 16 bits
Common Mode Rejection (slow rate)
2640A: AC:
  >=120 dB (50/60 Hz, +/-0.1% max 1 kΩ source imbalance);
  DC:
  >=120 dB.
2645A: AC:
  >=100 dB (50/60 Hz, +/-0.1% max 1 kΩ source imbalance);
  DC:
  >=100 dB.
Normal Mode Rejection (slow rate) 50 dB @ 50/60 Hz, +/-0.1%
Common Mode and Normal Mode Voltage Maximum
2640A: 300 V dc or V ac rms (channels 1,11); 25% V dc or V ac rms (all other channels).
2645A: 50 V dc or 30 V ac rms (all channels)
Power 107 to 264 V ac, 50 or 60 Hz (<15W), or 9 to 16 V dc (<6W)
Temperature, Humidity (non-condensing) -20ºC to 60ºC. Storage: -40ºC to 75ºC, 5% to 95% RH
Electromagnetic Interference (EMI) Passes FCC EMI Class B Equipment, Vfg. 243, European Norms EN50081-1 and EN50082-1, (CE.)
Weight 3.7 kg (8.2 lbs.)
Model Name Description
2645A

NetDAQ Data Acquisition Unit

2640A

NetDAQ Data Acquisition Unit

Accessories common to all models:

Accessory Description
C44

Transit Case

Y2641

19 Rackmount kit, single/dual

2620A-100

Extra I/O Connector Set: includes Universal Input Module, Digital I/O and Alarm Output Connectors

2600A-904

Trend Link for Fluke (V3.1.1) (WIN XP only)

2640A-911

NetDAQ Logger for Windows (WIN XP only)

2640A-912

NetDAQ Logger with Trending (WIN XP only)

264XA-903

Developer's Toolbox (16 bit)

2680A-APSW

Fluke DAQ 5.0 Application Software

2620A-101

2620A-101 Current Shunt Resistors

942615

NetDAQ Service Manual