Biodata - Model Microlink 840 -Versatile Data Logging
The culmination of 40-years of experience designing data acquisition and control systems has resulted in this extremely versatile unit. The Microlink 840 lets you perform a multitude of data acquisition and control tasks, all in one small box. You can use it anywhere on an Ethernet network or over the internet.
The Microlink 840 has 8 hardware inputs, each of which can:
- Monitor Digital Sensors, including
- flow meters
- Monitor Utility Meters, including
- Electricity meters
- Gas meters
- Water meters
- Monitor machines, for instance
- Record percentage on/off times
- Count items produced
- Monitor digital status, for instance
- Count switch closures
- Monitor analogue transducers, including
- pressure
- temperature
- force
- voltage
- 4-20 mA current
You can also use the Microlink 840 to:
- Control digital outputs
- Raise alarms
- Alarm on analogue level, on-off state or count
- Set two alarms on a combination of channels
- Switch a digital output on alarm, sounding a buzzer or turning on a light for example
- Notify alarms to a remote PC over Ethernet or Internet
- Insert a delay before an alarm is triggered, helping prevent false alarms
Log data from gas, electricity and water meters and send the consumption readings to a central PC running Windows. The Microlink 840 lets you monitor demand in real-time and identify patterns of use.
- Data files can be read by Excel, Energy Lens, and other software
- Continuous monitoring, logging and display using Windows software.
- See consumption in real-time
- Record total usage and usage over your chosen set intervals, for example each hour`s or day`s demand
- Alarm indication on all readings - set thresholds above or below which alarms are triggered and logged
- Each Microlink 840 can monitor 8 meters
- Maximum count of over 16 million
- All data is time-stamped
- Choose custom engineering units through software, scaling readings into the required units: kilowatt-hours or cubic meters for example
- Log the counts from the volt-free contacts of your utility meters
- Works with any meter emitting contact closure pulses
The Microlink 840 offers many counting options:
- Accumulating counter, eg for utility meter monitoring
- Frequency counter which measures counts per second, eg for determining the rate of power consumption
- Period counter which measures the time for a number of cycles to occur, eg for calculating the speed of a conveyor belt
- Pulse width counter, eg for measuring the duration of an event
- Elapsed time counter, eg for recording the length of time that a machine is on
- 16-bit or 32-bit counting: 16-bit allows counting up to 65000; 32-bit allows counting to over 16 million.
- Set a scale and offset factor to the count from software. For example if the pulses came from a flow meter which produced one pulse for every 50 millilitres, a scale factor of 0.05 would give a reading in litres.
Data can be saved in text files, xml files, Energy Lens files and to a MySQL database over Ethernet or Internet. You can also automatically e-mail data and reports, and send data to other applications like Word or Excel.
For each channel you can store...
- Maximum value over the logging interval
- Minimum value over the logging interval
- Average value over the logging interval
- Final value of the logging interval
- Custom calculations on saved data