Specifications

3. Operation MI 611-211 – October 2005
13
Passcode Access
Two levels of passcode protection are available. The Minor level permits access to Calibration and
Output Hold. The Major level permits changing parameters in Configuration as well as access to
Calibration and Output Hold. Both are 4-digit passcodes. The passcodes may or may not be the
same. They are set as part of configuring the instrument.
Upon entering the Configuration, Calibration, or Hold mode by pressing the appropriate key, the
display will read PASSCODE 0000. Upon entering the proper passcode and then pressing the
ENTER key, the display will change to the next item in the appropriate structure. The initial
factory default value for both Minor and Major passcodes is 0800.
Viewing and Changing Data
In the Configuration, Calibration, Hold, and Status modes, you will need to move through a
structure of parameters (using the arrow keys and ENTER key) to view and/or change the value or
status of a particular parameter. Structure diagrams, located in Appendix A, will aid you in doing
this.
Note that the Up and Down arrow keys will scroll through a menu in either direction. Also, that
the arrow keys may be used to increment one position at a time, or to move continuously through
a menu or string of values by holding the key in the depressed position.
The following example will show you how to use the keys in moving through the structure. The
example used is that of configuring temperature features. For the example, assume Fahrenheit
temperature units, an automatic temperature mode, a default value of 77°F, and a 3-wire, 1000
ohm RTD. In following the procedure, refer to Figure 9.
1. Use the Right arrow key to move from CONFIG TEMP to TEMP UNITS and then to
UNITS CELSIUS.
2. Use the Down arrow key to move to UNITS FAHREN and press the ENTER key. This
will enter your Fahrenheit selection and move the display to TEMP MODE. Every
temperature entry in the transmitter will now be in Fahrenheit units.
3. Use the Right arrow key to move to
MODE AUTO. Press the ENTER key. This will
enter your Auto selection and move the display to DEFAULT 000.0. The tenths digit
will be flashing.
4. Because you do not need to change the tenths digit, use the Left arrow key to move to
the units digit. Use the Up arrow key to change this digit to 7.
5. Use the Left arrow key to move to the tens digit and the Up arrow key to change this
digit to 7. You have now achieved your goal of setting the value to 77.0, so press the
ENTER key. This will enter your value of 77 and move the display to TEMP TYPE.
6. Use the Right arrow key to move to
TYPE RTD and press the ENTER key. This will
enter your selection of RTD and move the display to
RTD 2 WIRE.
7. Use the Down arrow key to move to
RTD 3 WIRE and press the ENTER key. This
will enter your selection of 3 Wire and move the display to 3 WIRE 100 OHM.
8. Use the Down arrow key to move to 1000 OHM and press the ENTER key. This will
enter your selection of 1000 ohm and move the display back to CONFIG TEMP. This
completes the example.