Windmill Software

Data acquisition and control

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Special Offers

Measuring pH

751-pH: pH Measurement via PC's USB port

Sale: Was 1095 now just 795!

Monitor 12 pH probes. With digital I/O & counting. Expand to measure temperature, pressure, flow, level etc.

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795.00

751: Multifunction Data Acquisition USB Unit

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

Sale: Was 595 now just 295!

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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295.00

Strain Gauge Monitoring

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

Sale: Was 775 now just 475!

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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475.00

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Best Sellers

Thermocouple Monitoring

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

Sale: Was 730 now just 360!

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

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360.00

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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295.00

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: all for 150. Connect up to 8 units to a PC. Data saved in text files, or passed directly to Excel.

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150.00

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Microlink 752: Resistance Measurement, Digital I/O, Analogue Control and Counting

DAQ Catalogue | Data Acquisition Hardware: USB |  Microlink 752: Resistance Measurement, Digital I/O, Analogue Control and Counting

752 USB Resistance Measurement  + Windmill Software: analogue inputs, digital i/o, counters, free technical support

752 USB Resistance Measurement + Windmill Software: analogue inputs, digital i/o, counters, free technical support


Price: 795.00 (Excluding VAT at 20%)

Quantity:

This package comprises Windmill software, the 752 measurement and control unit which plugs into the PC's USB port, and free, lifetime, technical support. The 752 unit provides differential inputs to monitor resistance and voltage signals. The units also provide digital input and output, counting, and voltage or current output control. The system supports 2 wire, 3 wire, 4 wire and 4 wire compensated resistance measurement. With extra hardware you can also monitor thermocouples and strain gauge bridges.
Price: 795 GB pounds.

Features

  • Monitor resistance and voltage signals
  • Switch digital outputs
  • Monitor digital inputs
  • Count events
  • With extra hardware monitor thermocouples and strain gauge bridges
  • Control voltage or current outputs
  • Supports 2 wire, 3 wire, 4 wire and 4 wire compensated resistance measurement
  • Includes the powerful yet easy-to-use Windmill software for Windows: no programming required
  • Connect up to 8 USB units to one PC
  • Choice of analogue input ranges, selected with Windmill software individually for each channel
  • Alternatively, choose automatic ranging and let the software match the input signal as closely as possible
  • Integrating analogue-to-digital converter reduces electrical noise
  • Use Windmill to select the resolution of the A-D converter from 12- to 18-bits
  • Automatic recalibration
  • Comprehensive User Manual
  • Free technical support for life

Resistance and Voltage Measurement

Resistance measurements are made by passing a constant, known, current through the unknown resistance, and monitoring the voltage drop across the resistance. The 752 unit has a constant current source of 1 milliamp.

When the resistance to be measured is small, the resistance in the leads to the sensors can significantly affect accuracy. However, different wiring configurations allow the lead resistance to be measured and compensated for. The Microlink 752 gives excellent results for all configurations, including 2 wire, 3 wire, 4 wire and 4 wire compensated. The most accurate results are obtained using a 4 wire arrangement. More connections are required for these arrangements than for straightforward voltage measurement. This means that you can monitor 16 voltages or 8 resistances, or a combination of the two such as 8 voltages and 4 resistances.


Digital Inputs and Outputs

The Microlink 752 provides 24 digital I/O lines, arranged in three groups of 8. Use Windmill to choose whether each group is an input or an output. You can read or set the state of each line individually. Alternatively, you can switch several channels at the same time.


Counters

The USB unit has eight 16-bit totalling counters. Each counter starts at zero and counts pulses to a maximum of 65535. You can reset a counter at any time from Windmill software. You can use the counters in two modes: accumulating count and resetting count. In accumulating count the counter keeps counting until you reset it. In resetting count the counter shows the number of pulses since the last reading.

The counters are found on 8 of the digital input and output lines. You can use any of these you don't need for counting as normal digital inputs: the counts are always maintained even if you don't plan to use them.


Thermocouples and Strain Gauges

By adding a Microlink 593 unit, which provides cold junction measurement, you can also monitor thermocouples. For strain gauges you need a Microlink 594 connection box and excitation supply.


Software

Chart Recorder Software
Windmill Charting software

Windmill software is included in the package. This modular suite offers data logging, charting, alarm indication, output control and sends data to other applications like Excel. You can also add process mimic generators, sequence control and many other modules. Should you wish to program the hardware yourself, you can use the IML Tools to do so.



USB Unit Specifications

 Dimensions (mm)             180 x 120 x 40
Maximum length of cable 5 m
Maximum distance from PC can be increased by
use of USB hubs
ANALOGUE INPUTS
Current source 1 milliampere
Maximum resistance inputs 8
Maximum voltage inputs 16
Maximum safe input voltage:
Power supply on ±48 V
Power supply off ±33 V
Transient ±300 V
Analogue to Digital Converter:
Maximum linearity error ±0.02%
Resolution Integration Time Samples/Second
12 bits 2.5 msec 80
13 bits 5 msec 64
14 bits 10 msec 48
15 bits 20 msec 32
16 bits 40 msec 16
18 bits 160 msec 6
ANALOGUE OUTPUTS
Voltage output 0-10.240 V
Max # voltage outputs 2
Current output 0-20.480 mA
Max # current outputs 2
Resolution 12 bits
DIGITAL INPUTS/OUTPUTS
Maximum number inputs 24
Maximum number outputs 24
(selected through Windmill in ports of 8 lines)
Power-up state all inputs
Compatibility TTL and 5 V CMOS, can be made
contact closure compatible
Range 0 to 5 V
Output capability 15 LSTLL loads
Maximum I/O speed 160 channels per second
COUNTERS
Maximum number counters 8
Resolution 16 bits
Compatibility TTL, 5 V CMOS, can be made
contact closure compatible
Input voltage range 0 to 5 V
Maximum count speed 160 counts per second

DAQ Catalogue | Data Acquisition Hardware: USB |  Microlink 752: Resistance Measurement, Digital I/O, Analogue Control and Counting

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