EL-OEM-3 Voltage Data Logger
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Product Overview
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OEM Packaged Voltage Data Logger
This component style data logger measures and stores up to 64,000 voltage readings over a 0 to 2.4V d.c. measurement range. It can be incorporated into new and existing products without the need to specifically develop a hardware and software platform.
The user can easily set up the logging rate and start time, and download the stored data by connecting the data logger to a PC’s USB port and running the purpose designed software under Windows 2000, XP Vista and 7. The data can then be graphed, printed and exported to other applications. The USB protocol information can be purchased, to integrate the data logger into custom software.
| Specifications | Minimum | Typical | Maximum | Unit |
| Measurement range | 0 | 24 | V (d.c.) | |
| Internal resolution | 2.4 | mV | ||
| Accuracy (overall error) | ±1 | % | ||
| Logging rate | every 1 s | every 12 hr | - | |
| Supply voltage | 2.75 | 3.6 | V | |
| Operating current* | 0.01 | 3 | °mA | |
| Operating temperature range | -40 (-40) | +85 (+85) | °C (°F) |
* Minimum current consumption is during the sleep phase, Maximum is when a reading is being recorded. When the module is connected to a USB host, up to 15mA may be drawn.
Application Notes and Pin Functions
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*See the alarm section |
Power Supply Optins
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The logger is suitable for voltages between 2.75V and 3.6V. This can either be from a battery or using an external voltage regulator. If the voltage drops below 2.75V, the logger will reset to a stopped condition (i.e. in the event of a depleted battery). |
Alarm/Indicator Output
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Maximum output current 10mA. ALM1 shows logging status when the hardware isn’t in an alarm condition. ALM2 shows logging status when the hardware is in an alarm condition. |
Voltage Inputs
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D.C. voltages of less than 2.4V can be measured using VIN directly. Voltages greater than 2.4V require rescaling, as per the table below:
Vsig can be connected to the positive supply rail and used to record the supply voltage. |
Dimensions
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All dimensions in mm (inches) 
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Alarm Ouput Modes
EL-OEM-3 features a two alarm outputs - ALM 1 and ALM 2.
By default hold is disabled. In this mode the ALM 1 will no longer continue to pulse after the logged reading has returned to normal from an alarm condition.
Hold can be turned on via the control software. In this mode ALM 1, that indicates an alarm condition, will continue to pulse even after the logged reading has returned to normal. This feature ensures that the user is notified that an alarm level has been exceeded, without the need to download the data from the logger.
EL-WIN-USB (CONTROL SOFTWARE)
Lascar’s EasyLog USB control software is supplied free of charge with each data logger. Easy to install and use, the control software runs under Windows 2000, XP, Vista & 7. The software is used to set-up the data logger as well as download, graph and export data to Excel.
The software allows the following parameters to be configured:
- Logger name
- Logging rate (1s, 10s, 1m, 5m, 30m, 1hr, 6hr, 12hr)
- High and low alarms
- Data rollover (allows extended logging by overwriting the oldest data when the memory is full)
- Start date and start time
Request Pricing & Information
If you need information right away or prefer to speak with a person, call us and one of our Experienced Applications Engineers will be happy to talk with you. You can reach us at 1-800-956-4437 during our normal business hours Monday - Friday from 8am to 6pm (EDT).
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