Hach-Lange DR 3900 User Manual - Manual (Page 31)

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Standard programs
5.2.3 Sample ID and operator ID with the optional RFID Sample ID Kit (not available on
all models)
The optional RFID Sample ID Kit consists of:
• A LOC 100 RFID Locator
• An operator RFID tag
• Five location RFID tags and
• Three sample bottle RFID labels each, in black, red, green,
blue and yellow
The operator and location RFID tags can be written to and read in
by the RFID module in the DR 3900 as often as required.
More information can be found in the user manual for the
LOC 100 RFID Locator.
5.2.4 Security settings
The "Security" menu contains a variety of security settings to
control access to various functions.
All functions can be allocated to three different security levels:
• not secured: every operator can make changes in this area.
• one key: every operator assigned this security level can
make changes to non-secured functions and functions with
one key.
• two keys: every operator assigned this security level can
make changes in all functions
1. Press Security in the "Instrument Setup" menu.
2. In order to open the Security List, assign a password as
security administrator. Press Security Password.
3. Use the alphanumeric keypad to enter a new security
password (up to 10 characters) and press OK to confirm.