Data is stored on a removable memory card (included), enabling remote data logging without the need for direct connection to a PC. After logging, the memory card can be simply inserted in a card reader to view and analyse the data on a PC; no special software is required.

Each data record can be date and time-stamped when it is stored. A new file is generated for each day’s data. The default file format is .CSV; other file extensions may be specified.

Data is stored as ASCII text with each record on a new line with comma separated fields. The available fields are: record prefix text, time & date, channel 1 reading, channel 1 units text, channel 2 reading, channel 2 units text, switch state.

Analogue values can be linearly scaled to convert to the units of the parameter being measured. Readings are sampled at 75 Hz and averaged over 1 sec.

In addition to the two analogue channels, the status of a switch input and data received on the logger’s RS232 input can be recorded. A comprehensive range of conditions for logging may be specified, which can be conditional on the analogue inputs, switch status or RS232 data.

RS232 data can be output and loggers daisy chained to increase the number of channels.

Customised versions and quantity discounts are available; please contact our sales team for a quote.

Logging Measured Values in Actual Units, Rather Than mA
The SpaceLogger A10 may be set to output a data string with measured values in any required units. The user may specify the units to appear in the logged data record with command UNITS1="degrees," for example.

It is necessary to set up the scaling factors to achieve readings in the required units over the measurement range from the measured current in mA.

Typical Applications

• Scientific research
• Education
• Industrial automation
• Plant and machinery monitoring
• Quality control
• Security monitoring
• Environmental monitoring

Features

• 2GB Memory Card (included)
• Two 4 to 20 mA inputs, 10 bit resolution—allows logging from numerous sensors
• Data sampled and time-stamped, then stored in daily files
• Simple to configure for wide range of applications via setup file written to SD card
• Option to record status of a switch and RS232 data
• Conditional logging
• Alarm output signal
• Can be daily chained to increase the number of channels
• Can be used to convert 4-20 mA to RS232 (with or without a memory card installed)
• SD card for high-capacity data storage in easily removable and transferable format
• Compact, economical and robust design
• Low power consumption
• File format. CSV enables stored data to be read & analysed with standard PC software

Features

SD Card Data Capacity
A typical string of data for each sample logged by the SpaceLogger A10 would be as follows:
Prefix, Date, Time, Channel 1, Units for Channel 1, Channel 2, Units for Channel 2, Switch State<CR><LF>

Where:

Therefore, max number of characters in one sample is 90, i.e. 90 bytes (including the comma delimiters).

If logging a sample once per second, for one month this would be approximately 250 MB of data in total.

The following table gives the approximate capacity of the SD card, depending on the logging interval selected and the actual size of the data sample recorded:

Examples of SpaceLogger A10 Applications

Please read the Technical Note—A10 Application Examples for worked examples on using the SpaceLogger A10 in the following applications:

• Recording the level of water in a tank using an ultrasonic ranger
• Recording GPS data and two analogue channels
• Analogue to RS232 converter
• Push button-triggered reading
• Logging the supply voltage
• Extending the number of analogue channels

Specification

The manufacturer reserves the right to amend the specification and therefore the information in this document may be subject to change.

Documentation

User Manual & Data Sheet

• User Manual
• Data Sheet
• Technical Note