Hach-Lange 2100Q and 2100Qis User Manual - Manual (Page 15)

Power management
Use power management to change the backlight option and the battery
saving auto-shutoff option.
Note: Power management is not active when the meter is connected to AC power.
1. Push the SETTINGS key and select Power Management.
2. Select which display option to change.
Option Description
Backlight The display is illuminated. To maximize battery life, select a
time period after which the backlight will automatically power
off if no key is pushed: 10 s, 20 s, 30 s,1 min, 2 min, 5 min
Note: The Backlight keys (
Product overview ) will turn the
backlight on and off.
Auto-Shutoff To maximize battery life, set a time period after which the
meter will automatically power off if no key is pushed: 1 min,
2 min, 5 min, 10 min, 30 min, 1 h
Set the sound options
The meter can make an audible sound when a key is pushed, when a
reading is complete or when the calibration reminder is due.
1. Push SETTINGS and select Sounds.
2. Select which events will produce an audible sound. Multiple items
can be selected.
Option Description
Key Press The meter will make an audible sound whenever a key
is pushed.
Reading complete The meter will make an audible sound whenever a
reading is completed.
Reminders The meter will make an audible sound when a
calibration is due.
Security options
The Security Options menu is used to protect the meter setup.
The Setup Date and Time, Delete Data Log, Restoring Factory Defaults
and Restore Factory Cal screens are not accessible without a password.
Store the password in a safe and accessible place. If the specified
password is forgotten and Security Options is turned on, the operator is
locked out of the restricted menus. Contact technical support if the
password is lost.
Turn security options on
The security options and the set password options are used together to
prevent access to restricted menus.
1. Push the SETTINGS key and select Security Options.
2. Select Edit Password and use the UP and DOWN keys to set a
password.
3. Select Security On to enable the password setting. The requirement
for the password entry is controlled by setting Security Options on or
off.
Note: Set the Security to Off to disable the password setting.
4. Push the ON/OFF key to turn off and on the meter to activate the
password settings.
View meter information
The instrument information menu shows specific information such as the
meter name, model number, software version, serial number and
available Operator and Sample IDs. 10 Operator IDs and 100 Sample
IDs are available.
1. Push the SETTINGS key and select Meter Information.
Calibration
The portable turbidimeter is calibrated with Formazin Primary Standards
at the factory. The meter should be calibrated upon receipt for best
results. The manufacturer recommends calibration with a primary
standard such as StablCal
® Stabilized Standards or with formazin
standards every three months.
English 13