Panametrics DewPro MMY30, Руководство пользователя, Страница: 27 / 43

DewPro
®
MMY30 User’s Manual 19
Chapter 4. Optional Display/User Interface (Option G or H)
4.3 Matrix Programming
Navigating through the matrix is accomplished by using the “V” and “H” buttons to move to another row or column,
as shown in the example below. At any location where a value may be changed by the user, the desired value is
programmed using the “+” and “–” buttons. During this procedure, the digit to be changed flashes.
Example:
To set the dew point value to –10°C for 20 mA (V1 H1 on matrix), proceed as follows:
1.
Press the V key until the display shows V1.
2.
Press the
H
key until the display shows H1.
3.
Use the + or – key to change the numeric value to –10.
4.
Proceed to any other part of the matrix.
4.4 Special Functions of the Push Buttons
1.
Reset to Normal Display: Pressing the V and H buttons simultaneously returns the user to VH 00 (normal display).
2.
Display Only: Note that five matrix locations are for display only and may not be changed by the user (refer to
Table 2 on page 18 or to Appendix A ). The “display only” fields are as follows:
•
VH 00 = normal display (in dewpoint °C)
•
VH 90 = during a system alarm, displays the error code for the fault encountered
•
VH 91 = during normal operation, the previous error code is displayed for reference
•
VH 92 = displays the factory issued identification number
•
VH 93 = displays the factory issued reference number designating the device type and software version
3.
Default Values: A default value is assigned to each programmable matrix field. The values are present after a
reset to factory programmed data has been executed (see VH 95).
4.
Changing Values: When unlocked (VH89=50), values in certain matrix locations can be changed using the
+ and – buttons. During this process, the changeable digit flashes.