Update The Firmware - HACH LANGE DR 900 Bedienungsanleitung

Set the display and sound
Use the display options to change the display contrast, the battery auto-
shutoff options or the backlight option. Use the sound options for an
audible sound when a key is pushed or a reading is complete.
1. Push SETTINGS>Setup>Display & Sound>Display Options.
2. Select an option.
Option Description
Contrast Adjust the display contrast. The lightest setting is 0 and the
darkest setting is 9. Default: 5
Auto-Shutoff To maximize battery life, set a time period after which the
instrument will automatically set the power to off if no key is
pushed (5, 10, 15, 20, 30 minutes, 1 hour, 2 hours or
Disable). Default: 10 minutes
Backlight The display backlight is set to on when BACKLIGHT is
pushed. Set a time period after which the backlight will
automatically power off if no key is pushed (10, 20,
30 seconds, 1, 2, 5, 10 minutes or Disable). Default: 1 minute
3. Push SETTINGS>Setup>Display & Sound>Sounds.
4. Select an option.
Option Description
Keystroke The instrument will make an audible sound whenever a
key is pushed. Default: off
Reading The instrument will make an audible sound whenever a
Complete reading is complete. Default: on
USB main menu
When the instrument is connected with a USB cable to a computer, the
USB Main Menu opens. Update the software, export or import programs
or export the data log and event log from the USB Main Menu.
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Update the firmware

Find the firmware upgrade file on the product website or contact the
instrument supplier. Save the file from the website to the computer.
1. Set the instrument to on and connect the USB cable to the
instrument and to the computer.
The USB Main Menu prompts.
2. Select Update DR900.
The instrument shows as a USB drive on the computer. Open the
folder.
3. Copy the file DR900.bin to the open folder.
4. Push Ok.
5. When the update is done, push Ok.
6. Select Disconnect USB, push Ok and disconnect the USB cable.
7. Push Ok.
8. Restart the instrument.
Manage programs
With the Manage Programs function, user programs can be exported
and/or imported and new factory programs can be imported.
1. Set the instrument to on and connect the USB cable to the
instrument and to the computer.
The USB Main Menu prompts.
2. Select Manage Programs and select an option:
Option Description
Export User Export all user programs to the computer for storage
Programs or to move the user programs to another DR 900.
Import User Replace all user programs with the user programs
Programs from another DR 900 via computer.
Import Factory Import new factory programs from the manufacturer
Programs website.
The instrument shows as a USB drive on the computer. Open the
folder.