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ML-x17 DATA LOGGER MANUAL
Manufacturers of low power instruments
page 91
4.30.1.3
SD card test
Use this feature to test the SD card. There will be data written on the card, and afterwards erased.
Below a screenshot is given:
The information from this test is very important. Not only the
health of the SD card is tested, but also if there are some
exception logged. Exceptions, where the watchdog was
called to end a certain situation must NOT exist frequently.
So, the size of the watchdog-file tells a lot about the
operation of the system.
4.30.1.4
Battery test
This test is for evaluating the battery condition of Lithium Batteries only.
The internal resistance is measured, by measuring the voltage of the cell, while increasing current
consumption. A battery with an internal resistance of >1500 m ohms must be replaced.
Since the condition of rechargeable batteries
changes with the state of charge, it is no use to
test the batteries with this tool. Also, the internal
resistance is in another region, so use this feature
with lithium (LSH-20 form Saft) only!
4.30.1.5
Comport redirect
This feature allows the user to communicate with the sensor directly. It offers a transparent connection,
from the USB terminal screen, to the sensor. Baud rate settings can be selected, to match the connected
sensor. During the session, the sensor power switch of the data logger is enabled, to supply the sensor.
So, a very convenient way of testing, troubleshooting, configuring your sensor is possible.
Also comport redirect can be used for upgrading firmware of your sensor, through the data logger. The
software package of the sensor can be used, after comport redirect is enabled.
The following ports are possible:
And the following baud rates /
frame settings are supported:
SD card test
Data log file size = 4578 KB
Email file size = 0 Bytes
FTP file size = 0 Bytes
TCP file size = 0 Bytes
Watchdog file size = 162
KB
Free disk space = 1896 MB
File write/read OK
Press any key! >
Battery test
Battery voltage = 3.585
V
Battery current = 57 mA
Increasing power consumption...
Battery voltage = 3.517 V
Battery current = 157 mA
Battery resistance = 680 mOhm
Was the Battery test OK?
Choose yes/no >
Comport
redirect
[0] Exit
[1] Serial
port
[2] Accessory port
[M]
Modem
>
Port mode
[0]
Exit
[1] RS232 8N1
[2] RS485
8N1
[3] SDI12
[4] RS232 7E1
[5] RS232
8E1
[6] RS232 8O1
[7] RS485 8E1
[8] RS485
8O1
[9] RS485 8N2
>