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5.4 Security Access
When entering the correct access code for the Calibration/Hold security level, the Calibration
a
nd Hold menus are accessible. This allows operators or technicians to perform routine mainte-
nance. This security level does not allow access to the Program or Display menus. When
entering the correct access code for All
security level, the user has access to all
menu functions, including Programming,
Calibration, Hold and Display.
To use T56 menus using a security code,
access the Security screen by pressing
ENTER/MENU from the main screen. If a secu-
rity code is currently programmed, the follow
security screen will appear. Enter the code.
1. If a security code has been
programmed, selecting the Calibrate, Hold, Program or Display top menu items causes
the security access screen to appear
2. Enter the three-digit security code for the appropriate security level.
3. If the entry is correct, the appropriate menu screen appears. If the entry is incorrect, the
Invalid Code screen appears. The Enter Security Code screen reappears after 2 seconds.
5.5 Using Hold
To prevent improper operation of systems
or pumps that are controlled directly by the
current output, place the analyzer in hold
before removing the sensor for calibration
and maintenance. During hold, all outputs
remain at the last value. Once in hold, all
current outputs remain on Hold indefi-
nitely. Be sure to remove the analyzer from
hold once calibration is complete
To hold the outputs and alarm relays,
access the Hold screen by pressing
ENTER/MENU from the main screen.
5.6 Resetting Factory Default Settings
This section describes how to restore factory calibration and default values. The process also
clears all fault messages and returns the
display to the first Quick Start screen. The
T56 offers three options for resetting
factory defaults.
a. reset all settings to factory defaults
b. reset sensor calibration data only
c. reset analog output settings only
Instruction Manual Clarity II T56
PN-51-T56 May 2012
20 Programming Basics