Panametrics DigitalFlow GC868, Руководство для стартапов

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DigitalFlow™ GC868 Startup Guide (1 and 2-Channel) 2-4
Chapter 2. Initial Setup
a. If you have entered the local Atmospheric Pressure (PSIg, BARg or kPag), use the
numeric keys to enter the atmospheric pressure value. Press
[ENT].
6. At the
Stopwatch Totalizer
prompt, press [F1] to totalize all liquid flow
continuously, or [F2] to measure totals manually with the Stopwatch Timer.
(With MNUAL ( [F2]) , the console key on the keypad is used to start and stop the
totalizer. See the
Programming Manual
for details.)
The remainder of the SYSTM submenu is identical for the 1-Channel and 2-Channel
versions of the Model GC868. Proceed to the
1- and 2-Channel Meters
section to
complete the programming of this submenu.
2.5.2 A 2-Channel Meter
For the 2-Channel Model GC868, the information entered in the SYSTM submenu
pertains only to the currently selected channel.
1. At the
User Program
screen shown, press the [F2] function key to program the
SYSTM submenu.
2. Enter a Channel Label of up to 9 characters. Press [ENT] .
3. Enter a
Channel Message
of up to 21 characters. Press [ENT] .
Note: For the 2-Channel Model GC868, the System Units, Pressure Units and
Stopwatch Totalizer
prompts, which are not required to make the unit
operational, are located in the GLOBL submenu. See the Programming
Manual for details.
The remainder of the SYSTM submenu is identical for the 1-Channel and 2-Channel
versions of the Model GC868. Proceed to the 1- and
2-Channel Meters
section below to complete the programming of this submenu.
2.5.3 1- and 2-Channel
Meters
1. At the
Equation
prompt, press [F1] to display the measurement data in
standard
volumetric units, or press [F2] to display the measurement data in
actual
volumetric units. The Model GC868 will use the appropriate gas equation to
calculate the flow rate, corresponding to the measured data, in the volumetric
units indicated.
a.
If you selected Standard , press
[F1]
to have the meter treat the gas as an ideal
gas
or press
[F2]
to have the meter treat the gas as a
supercompressed gas
.
2. Use the [F1]-[F4] and
[
→
]
keys to select the desired
Volumetric Units
for the flow
rate display.
The abbreviations and definitions of all the available volumetric and totalizer units
are shown in Table 2-2 on page 2-5. The choices shown on the option bar are
determined by the selection made at the previous SYSTEM UNITS screen
Table 2-1: Available Pressure Units
English Metric
PSIa = Pounds per square inch
absolute
BARa = bar absolute
PSIg = Pounds per square inch
gauge
BARg = bar gauge
kPaa = kiloPascals absolute
kPag - kiloPascals gauge