Menu Tree; Diagnostic Messages; Security; Using Hold - Emerson Rosemount Analytical HART 5081-A-HT Instruction Manual

Two-wire chlorine, dissolved oxygen, and ozone transmitter
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MODEL 5081-A

5.3 MENU TREE

The Model 5081-A transmitter has three menus: CALIBRATE, PROGRAM, and DIAGNOSE. Under the Calibrate and
Program menus are several submenus. Under each submenu are a number of prompts. The DIAGNOSE menu shows
the reader diagnostic variables that are useful in troubleshooting. Figure 5-4, on the following page, shows the complete
menu tree.

5.4 DIAGNOSTIC MESSAGES

Whenever a warning or fault limit has been exceeded, the transmitter displays diagnostic fault messages. The display
alternates between the main display and the diagnostic message. See Section 15.0 for the meaning of fault and warning
messages.

5.5 SECURITy

5.5.1 Purpose. Use the security code to prevent program settings and calibrations from accidentally being changed.
To program a security code, refer to Section 7.5.
PROGRAM
Id
000
EXIT
ENTER

5.6 USING HOLD

During calibration, the sensor may be exposed to solutions having concentration outside the normal range of the process.
To prevent false alarms and undesired operation of chemical dosing pumps, place the transmitter in hold during calibra-
tion. Activating hold keeps the transmitter output at the last value or sends the output to a previously determined value.
See Section 7.3, Output Ranging, for details.
After calibration, reinstall the sensor in the process stream. Wait until readings have stabilized before deactivating Hold.
To activate or deactivate Hold:
1. Press HOLD on the remote controller.
2. The HoLd prompt appears in the display. Press é or ê to toggle Hold between On and OFF.
3. Press ENTER to save.
1. If settings are protected with a security code, pressing PROG or CAL on the remote
controller causes the Id screen to appear.
2.
Use the arrow keys to enter the security code. Press ENTER.
3. If the security code is correct, the first submenu appears. If the code is incorrect, the
process display reappears.
4. To retrieve a forgotton code number, enter 555 at the Id prompt. The present security
code will appear.
SECTION 5.0
DISPLAy AND OPERATION
25

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