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A10 Analogue Logger

£174.96 exVAT

£209.95 incVAT

The SpaceLogger A10 Analogue is a versatile 2 channel 4 to 20 mA data logger.

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 daisy 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

Product Description

Overview

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

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:

Prefix: text set by user – may be up to 10 characters long
Date: format is DD/MM/YYYY (10 characters)
Time: format is hh:mm:ss (8 characters)
Channel 1: recorded value could be up to 16 characters max, including decimal point
Units 1: text set by user – may be up to 10 characters long
Channel 2: recorded value could be up to 16 characters max, including decimal point
Units 2: text set by user – may be up to 10 characters long
Switch Sate: logged as 0 or 1 (1 character)
<CR><LF>: end of line is 2 characters

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:

SpaceLogger A10

Data capacity by sample size and logging rate

Memory Card Size 90bytes
@ 1 per sec
90bytes
@ 1 per 5 sec
45bytes
@ 1 per sec
45bytes
@ 1 per 5 sec
2 GB 8 months >3 years 16 months >6 years

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

Physical Enclosure dimensions Width: 67 mm
Depth: 67 mm
Height: 28 mm (excluding optional rubber feet)
Weight 75g
Enclosure material GP ABS (UL94-HB) plastic and acrylic
Connections Type Screwless terminals capable of accepting wire 0.32 to 0.65mm diameter (AWG 28 to 22)
Analogue Input Number of Channels 2
Range 4 to 20 mA (0 to 23 mA maximum)
Sampling Readings are sampled at 75 Hz and averaged over 1 sec
Maximum logging rate 1 Hz
Input impedance 177 ohms
Accuracy ±1% or 0.1 mA at 20 °C over range 4 to 20 mA
Drift with temperature 100 ppm / °C over range -40 °C to +40 °C
Analogue to digital converter 10-bit resolution
Switch Input Digital channel Input for logging control switch
Max input voltage Must not exceed 3V
Current out 7μA max
RS232 Input Number of channels 1
Transmission standard RS232 compatible, 8 bits and no parity
Transmission speed 9600 Baud (default) or selectable from 115200, 57600, 38400, 19200, 4800, 2400, 1200, 300 or 110 Baud
Data sample Records only the data between specified start (STX) and end (ETX) characters
RS232 Output Transmission standard RS232 compatible, 8 bits and no parity
Transmission speed 9600 Baud (default) or selectable from 115200, 57600, 38400, 19200, 4800, 2400, 1200, 300 or 110 Baud
Output rate Normal Mode: 1 data record per 1 to 60 seconds – selectable
Single sample Mode: single data record output in response to event defined by command TRIGGER
Slave Mode: rate determined by input of RS232 data sample defined by STX and ETX
Alarm Output Min output voltage VOH=1.7V Typ @ 1mA output current
Data Storage Data storage card Removable SD, MMC or MMC mobile card
Data capacity 2 GByte (max)
File system FAT16 or FAT32 with 8.3 file names
Sector size 512 Bytes
Data logging interval Normal Mode: 1 data record per 1 to 60 seconds – selectable
Single sample Mode: single data record logged in response to event defined by command TRIGGER with time delay defined by command DELAY
Slave Mode: rate determined by input of RS232 data sample defined by STX and ETX
Audible / Visual
Indicators
LED indicators Green: Ready to record data
Red: Power on, Writing data to SD card
Audio bleeper Two tone signal on correct card insertion
Single tone when data purge button depressed
Four bleeps per minute when time and date not set
Real Time Clock Accuracy ±40 ppm at 25°C
Backup battery CR2032
Power Power requirement 7 to 30 V DC
Current at 12 VDC 10 mA typical
Supply input protection Polarity reversal protected and internal resettable 140 mA fuse
Connection options (both included) 1.3 mm centre pin DC connector, or Screwless terminals (0.32 to 0.64 mm diameter, AWG 28 to 22 conductors)
Environmental Temperature range Operating: -25°C to +70°C [or dependent on card conditions]
Storage: -40°C to +70°C
Enclosure protection IP203
EMC EMC Directive 89/336/EEC – CE marked
(Emissions: EN61326:1997 inc A1/A2/A3:2003, EN60945:1997
Immunity: EN61326:1997)
FCC/CFR 47: Part 15:2004

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

User Manual & Data Sheet
Download PDF SpaceLogger A10 – User Manual
Download PDF SpaceLogger A10 – Data Sheet
Download PDF A10 Application Examples – Technical Note
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