Emerson Micro Motion 9739 MVD Configuration And Use Manual page 222

Using the transmitter display
a. With the cursor flashing on the first digit, activate Scroll until the correct digit is displayed,
then activate Select.
b. Repeat this process for the second, third, and fourth digits.
Tip
If you do not know the correct value for Off-Line Password, wait 30 seconds. The password screen
will time out automatically and you will be returned to the previous screen.
4. If Scroll flashes on the display, activate the Scroll optical switch, then the Select optical switch, and
then the Scroll optical switch again.
The display will prompt you through this sequence. The Scroll-Select-Scroll sequence is designed to
protect the display from accidental activation of the off-line menu. It is not designed as a security
measure.
5. To exit a display menu and return to a higher-level menu:
• Activate Scroll until the EXIT option is displayed, then activate Select.
• If the EXIT option is not available, activate Scroll and Select simultaneously and hold until
the screen returns to the previous display.
6. To exit the display menu system, you can use either of the following methods:
• Exit each menu separately, working your way back to the top of the menu system.
• Wait until the display times out and returns to displaying process variable data.
C.2.1 Optical switches
The transmitter has two optical switches: Scroll and Select. To activate an optical switch, block the light by
holding your thumb or finger in front of the opening.
If you are in a hazardous environment, do not remove the transmitter housing cover.
Removing the transmitter housing cover in a hazardous environment can cause an
explosion or other damage. You can operate the optical switches through the lens.
The optical switch indicator lights up when the transmitter senses that an optical switch has been
activated. See Table C-1 .
Table C-1 Optical switch indicator and optical switch states
Optical switch indicator
Solid red
Flashing red
C.2.2 Enter a floating-point value
The display allows you to enter a maximum of 8 characters, including the sign. The decimal point is not
counted as a character. Exponential notation is used to enter values that require more than 8 characters.
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State of optical switches
Either the Scroll or the Select optical switch is activated.
Both optical switches are activated.
Micro Motion 9739 MVD Transmitters