Emerson Process Management 2400S manual Display password

Using the Transmitter User Interface

3.5.4Display password

Some of the display menu functions, such as accessing the off-line menu, can be protected by a display password. For information about enabling and setting the display password, refer to Section 8.9.

If a password is required, the word CODE? appears at the top of the password screen. Enter the digits of the password one at a time by using Scroll to choose a number and Select to move to the next digit.

If you encounter the display password screen but do not know the password, wait 60 seconds without activating any of the display optical switches. The password screen will time out automatically and you will be returned to the previous screen.

3.5.5Entering floating-point values with the display

Certain configuration values, such as meter factors or output ranges, are entered as floating-point values. When you first enter the configuration screen, the value is displayed in decimal notation (as shown in Figure 3-4)and the active digit is flashing.

Figure 3-4Numeric values in decimal notation

SX.XXXX

Sign

For positive numbers, leave this space blank. For negative numbers, enter a minus sign (–).

Digits

Enter a number (maximum length: eight digits, or seven digits and a minus sign). Maximum precision is four.

To change the value:

1.Select to move one digit to the left. From the leftmost digit, a space is provided for a sign. The sign space wraps back to the rightmost digit.

2.Scroll to change the value of the active digit: 1 becomes 2, 2 becomes 3, ..., 9 becomes 0, 0 becomes 1. For the rightmost digit, an E option is included to switch to exponential notation.

To change the sign of a value:

1.Select to move to the space that is immediately left of the leftmost digit.

2.Use Scroll to specify – (for a negative value) or [blank] (for a positive value).

In decimal notation, you can change the position of the decimal point up to a maximum precision of four (four digits to the right of the decimal point). To do this:

1.Select until the decimal point is flashing.

2.Scroll. This removes the decimal point and moves the cursor one digit to the left.

3.Select to move one digit to the left. As you move from one digit to the next, a decimal point will flash between each digit pair.

4.When the decimal point is in the desired position, Scroll. This inserts the decimal point and moves the cursor one digit to the left.

14 Micro Motion® Model 2400S Transmitters for DeviceNet™