Windmill Software

Data acquisition and control

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751: Multifunction Data Acquisition USB Unit

751 Multi-function USB Data Acquisition with Windmill Software: 16 analogue inputs, 32 digital i/o, 8 counters

For 16 differential analogue inputs, 16 digital inputs/outputs and 8 counters. You can connect eight 751s to one PC. With the addition of suitable Microlink 59x conditioning units, you can also monitor thermocouples, strain gauges, pressure transducers and current. Includes Windmill data acquisition software for logging, charting, output control and direct data transfer to Excel.

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Microlink 840: Versatile Data Logging over Ethernet and Internet

Microlink 840: Versatile data logging

The culmination of 30-years of experience designing data acquisition and control systems has resulted in this extremely versatile, compact unit which lets you monitor analogue transducers, digital sensors, utility meters, machines and digital status. It can also raise alarms and control digital outputs.

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750: Low Cost Measurement & Control

750 USB Data Acquistion with Windmill Software: analogue input, digital i/o, counters, free technical support

16 analogue inputs, 16 digital inputs/outputs, 8 counters and Windmill logging and control software. Connect up to 8 units to a PC. Data saved in text files, or passed directly to Excel.

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pH Data Logging over Ethernet and Internet

851-pH: pH Data Logger with Digital I/O and Counting

This package logs data from 12 pH probes. It comprises Windmill software, a pH data logger and pH signal conditioning. The pH probes connect to BNC sockets. You can read data over an Ethernet network.

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Thermocouple Monitoring

Thermocouple measurement over USB, Windmill 7 software & free technical support

Monitor 16 thermocouples and voltages, digital I/O and counting. Connect 8 units to 1 PC and monitor 128 thermocouples.

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Strain Gauge Monitoring

Strain Measurement:  USB Data Acquisition Unit, Strain Gauge Connection Box, Windmill Software, free technical support

Monitor 16 strain gauges, balanced bridges like pressure transducers or voltage signals. Connect 8 units to 1 PC and monitor 128 strain gauges. Readings in microstrain. Zero reference level can be set in Windmill software. Plus digital input & output and counting.

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Microlink 594: Strain Gauge Connection Box

DAQ Catalogue | Data Acquisition Hardware: USB |  Microlink 594: Strain Gauge Connection Box

Microlink 594 Strain Gauge Connection Box

Microlink 594 Strain Gauge Connection Box

Price: 265.00 (Excluding VAT at 20%)


Sixteen bridge inputs which you need when monitoring strain gauge bridges and balanced bridges such as pressure transducers. Also provides screw terminations to allow signals into the USB units to be permanently wired. Used with the 751, 752 or 851 data acquisition units.

Strain gauges need an external excitation voltage to supply sufficient current to keep all the bridge circuits energised. Four sets of 16 screw terminals give + and - excitation and + and - signals for each of 16 bridges. Two 1 kOhm termination resistors are mounted in half bridge configuration whilst high quality 350 and 120 Ohm resistors can be provided for the completion of quarter bridges. The auxiliary channel of a 751, 752 or 851 unit, is used to monitor the excitation voltage. The analogue-to-digital converter on the 751, 752 or 851 unit is suitable for direct measurement of voltage imbalance, provided you choose a high resolution.

When a bridge input is selected the software automatically monitors excitation voltage and performs the bridge calculation to produce a reading in microstrain. You can set a zero reference level and monitor changes relative to that level.

With the 594 unit you can configure individual channels to accept any one of the following inputs.

voltage input
quarter bridgesingle strain gauge
half bridgetensile + compressive strain gauge
half bridgenormal + transverse strain gauge
full bridgetwo tensile + two compressive gauges
full bridgetwo normal + two transverse gauges
full bridgetensile normal + compressive normal + tensile transverse + compressive transverse gauge

More information about measuring strain, and tips on implementing a computerised strain measurement system, is on our Data Acquisition Intelligence site.

DAQ Catalogue | Data Acquisition Hardware: USB |  Microlink 594: Strain Gauge Connection Box