Panametrics DigitalFlow GC868, Руководство по программированию, Страница: 12 / 134

Chapter 1. Programming Site Data
1-1 DigitalFlow™ GC868 Programming Manual (2-Channel)
1.1 Introduction
The 2-Channel Model GC868 flowmeter cannot provide accurate flow rate
measurements for either channel until the instrument has been properly installed,
the channel has been activated, and the basic system and pipe parameters have
been programmed into the meter. See the
Startup Guide
for detailed instructions on
performing these tasks. After completing the installation, proceed with this chapter
to program the Model GC868’s advanced features.
Four submenus within the User Program provide access to the various
programmable features of the Model GC868. Step-by-step programming
instructions for each submenu are presented in this chapter. Refer to the
appropriate section for a discussion of the following User Program submenus:
• CH1/CH2 - use this submenu to activate a channel and to enter the basic setup
parameters for that channel.
• GLOBL - use this submenu to enter global meter parameters (i.e., clock, system,
input/output, communications and security), which apply to both channels.
• SAVE - use this submenu to store both channel and global data in the meter’s
memory, as a site file.
• RECLL - use this submenu to recall and activate a stored site file.
Note:
It is not required that both channels of a 2-Channel Model GC868 be
installed. The second channel connector may simply be left vacant for future
expansion.
As an aid in following the programming instructions, a complete menu map of the
User Program
is included in Appendix A,
Menu Maps
.
Note: In the menu map drawings, plain text represents prompt area messages
and boxed text represents option bar choices. Fx represents a function key to
select an option bar choice.
1.2 Using the
Keypad
The Model GC868 keypad contains 39 keys, which are labeled with their primary
(unshifted) functions. In addition, pressing the red [SHIFT] key will access the
secondary functions assigned to most of the keys.
The complete keypad is illustrated in Figure 1-1 below and a detailed description of
both the unshifted and shifted functions for each of the 39 keys is listed in Table 1-1
on page 1-2.
Note: Only the [SHIFT] key and the eight [Fx] keys have no shifted function.