Edit A User Program; Delete A User Or A Favorite Program; Instrument Information; Set The Password - Hach DR 900 Manual Del Usuario

8. Enter the absorbance value:
Option Description
Edit ABS Use the navigation keys to enter the absorbance
Manual value manually.
Edit ABS Auto
1. Put the blank into the cell holder and push
Zero.
2. Put the prepared sample into the cell holder
and push Read.
3. Push Done.
Note: A beep means that the absorbance is a duplicate of a previously entered
standard or that it falls between two previous standards. Enter a different value
and continue.
9. Push Done.
10. Select Add Cal Point.
11. Enter additional calibration points as described in steps 7–9.
12. Select Save User Program.

7.3.1 Edit a user program

To edit a stored user program:
1. Select HOME>Favorites/User Programs.
2. Select the applicable program and push Options.
3. Push Edit.
4. Obey the screen prompts to edit the procedure.

7.3.2 Delete a user or a favorite program

Delete a stored user or favorite program if the program is not used
anymore.
1. Select HOME>Options>Favorites/User Programs.
2. Highlight the applicable program and push Options>Delete and
obey the screen prompts.
14 English

7.4 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>Instrument
Information.

7.5 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 Select On or Off to set the password protection
Settings to on or off.
Protected Shows the list of protected items: edit operator
Items ID, edit sample ID, edit user programs, date &
time, upgrade firmware, upgrade methods,
language and edit favorites list.

7.6 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