Yokogawa 2-Wire Dual Channel Transmitter/Analyzer FLXA21 - Manual (Page 68)

<4. COMMISSIONING OF pH/ORP>
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IM 12A01A02-01E 5th Edition : Oct. 31, 2013-00
If you select “Load factory settings,” the instrument will be set to the default settings at factory
shipment.
When this item is selected, a screen prompting whether to restart is displayed. If this is no
problem, press “Yes.” Then the “Loading …” message appears and blinks and loading is started.
When the factory settings have been loaded, the instrument will be restarted.
When “Save user settings” is selected, the current settings can be saved as the defaults.
When this item is selected, the user settings will start to be saved immediately. After saving the
parameters, press or to change the display because this save doesn’t have restart
function.
If “Load user settings” is selected, the settings saved as user settings can be set as the defaults.
When this item is selected, a screen prompting whether to restart is displayed. If this is no
problem, press “Yes.” Then the “Loading …” message appears and blinks and loading is started.
When the user settings have been loaded, the instrument will be restarted.
4.6.2 Tag
A tag provides a symbolic reference to an instrument and is generally defined to be unique
throughout the control system at one plant site. A tag can contain up to 12 alphanumeric
characters. The default value is FLXA21-PH. When two sensor modules are installed, each
module can have their own tag numbers.
The tag is displayed at the top of the main and home displays.
4.6.3 Passwords
Calibration and commissioning operations can be separately protected by each password. To
protect execute operations, enter a password in Execute’s input field. To protect commissioning
operations, enter a password in Commissioning’s input field. By default, both input fields are
empty. When a password input field is empty, operation is not password-protected. A password
can contain up to 8 characters.
When you set a password, always take a note of it.
When a password is set, input of the password is necessary to enter the password-protected
operation. After inputting the password, the display will change to an operator ID input display.
When an operator ID is input, its operation is recorded into a logbook. The input of an operator ID
is not necessary to enter the operation. An operator ID can contain up to 4 characters.
4.6.4 Date/Time
The Logbooks and trend graphs use the clock/calendar as a reference. The current date and
time is set here. The time display format can be selected from among three types.
4.6.5 Communication
In “Communication,” select the communication setting from among None, HART, and PH201G.
The burn down current value is 3.6 mA.
NOTE
To make the change of “Communication” valid, turn off the power supply once, and reboot.
In the case of “None,” there is not the problem even if you do not change it as “HART” of default
value.