Voltage Logger

10 Channels 12-bits Voltage Logger

The Diagonal Systems Voltage logger offers 10 single ended channels with high resolution and high accuracy data logging. The device can be used as a stand alone device that logs the voltages into a micro SD Card or can be connected to a computer with our software.

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Applications

Energy storage systems.
Weather station recording.
Temperature sensors.
Hydrographic recording.
Soil moisture level recording.
Gas pressure recording.
Variations in light intensity.
Tank level monitoring.
Vehicle Testing.
Scientific investigations.
Debugging and validating analogue electronics.

Specifications

General specifications

Start / Stop logging push button.
Push-push micro SD Card socket.
Pluggable terminal block connectors (included with the device):
- 2 x 5 ways used for voltage inputs.
- 1 x 2 ways used for ground.
Real time data plotting with its Windows software.
Small form factor: 95 x 77 x 30 mm (3.75 x 3.00 x 1.18 in).
3 LEDs for indicating faults and activity:
- Device status.
- SD Card activity.
- USB communications.
High performance 32 bits automotive microcontroller.
Real Time Clock Calendar.
Replaceable CR1220 battery for the internal Real Time Clock Calendar.

Inputs

10 single ended inputs.
Voltage input range: 0 to 3.3V.
12 bits, 805 µV resolution.
Accuracy: ±1.61 mV.
Maximum full scale error: ±0.5% (under 23±5℃, 45%～75%RH).
Configurable noise filter levels.
No pull-ups or pull-downs resistors on the inputs.

Data logging

Easy external access to the SD Card.
Supports up to 32GB micro SD cards (FAT32).
Maximum file size 4GB.
File size: approx. 1.4MB per 10,000 samples.
Data logged into "CSV" file (comma-separated values) easily importable to any spreadsheet program.
Configuration:
- Logging interval: Minimum: 20 ms. Maximum: 1 hour.
- Time for creating a new file (Hourly, Daily, Weekly, Monthly).
- Number of floating zeros from the voltage values.

Software

Plots to a graph the reading voltages.
Save the plot to a "PNG" format image file.
Start and stop reading voltages from the device.
Configuration:
- Time interval for updating the graphs.
- Number of samples shown.
- Sample time. Minimum sample interval: 2 ms.
- Refreshing the graphs time interval.