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Hach DR 1900 - Instrument Information; Set the Password; Set the Display and Sound

Hach DR 1900
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Option Description
LEFT arrow Show the absorbance of each reading.
DOWN arrow Toggle between Concentration, Absorbance and %Transmittance.
Instrument information
The instrument information menu shows specific information such as the instrument name, serial
number, software version, database version, memory used and program availability. Push
SETTINGS>Setup>Instrument Information.
Set the password
The password settings options are used to prevent access to restricted menus.
Note: If the specified password is forgotten and Security Options is set to on, the operator is locked out of the
restricted menus. Contact technical support if the password is forgotten.
1. Push SETTINGS>Setup>Password Settings.
2. Select an option.
Option Description
Password Settings Select On or Off to set the password protection to on or off.
Set Password Enter a password.
Protected Items Shows the list of protected items: setup, edit operator ID, edit K factor, edit user
programs, edit my workflow and delete datalog.
Set the display and sound
Use the display options to change the display contrast, the battery auto-shutoff options, the backlight
option or the display style. Use the sound options for an audible sound when a key is pushed, a
reading is complete or before the instrument sets the power to off automatically.
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: 4
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 Never
Off). Auto-shutoff is not active when the instrument is connected to AC power. Default:
30 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 Never off). Default: 1 minute
Display Style Select a high or a smooth contrast to suit lighting conditions. Default: High Contrast
Intelligent Menu When set to on, the instrument keeps the memory of a path to a specific menu which was
accessed the time before. Default: On
3. Push SETTINGS>Setup>Display & Sound>Sounds.
4. Select an option.
Option Description
Key Press The instrument will make an audible sound whenever a key is pushed. Default: off
Reading Complete The instrument will make an audible sound whenever a reading is complete. Default: on
16 English

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