29
To remove the button cell battery gently push the cell out of its
housing from the side using a small screwdriver.
Push the new cell with your fingers from the right side into the
housing.
Set the data logger clock according to Section
6.8.6
How to replace the internal lead-acid battery (MRL-7B)
!
Attention
Unplug the internal 2A-fuse before replacing the battery!
Remove the cover of the MRL-7B as described in Section
unplug the spring clip X1. Then, remove the cover that locks the
battery in its position by loosening the two Phillips-screws.
Unplug the 2A-fuse!
Take out the battery, remove the wires and mount the new battery
following the instructions in reverse.
6.8.7
How to update the software
The software of the MRL-7 consists of two parts: the firmware that controls the data logger’s hardware
and the setup-software that manages data acquisition, signal analysis, network communication and
much more. A new firmware is released for new data logger features or new hardware components.
On the other hand, a setup-software might be provided for different applications, e.g. a setup with a
high sampling and data transmission rate, or a setup with different communication settings.
Updating the firmware
1.
Connect the MRL-7 to your PC with the USB to RS232 converter cable and make sure the data
logger is powered.
2.
Go to the menu
Extra
and select
Start Programmer
.
3.
Select the firmware file (extension
.hex
) provided by SOMMER Messtechnik. Make sure the file is
stored on your PC and not on a USB or network drive.
4.
Choose the COM-port the data logger is connected to and a Baud-rate of 57'600.
