Fluid Components International GF03 - Manual (Page 37)

Doc. No. 06EN003352 Rev. B 3 3 Model GF03 Flow Meter
FLUID COMPONENTS INTERNATIONAL LLC http://www.fluidcomponents.com
IF NOT EOF(1) THEN
' LOC(1) gives the number of characters waiting.
GFInput$ = GFInput$ + INPUT$ (LOC(1), #1)
' Gather at least one full display of information
IF INSTR(GFInput$, "CH1:") THEN
DO UNTIL INSTR(more GFInput$, "CH:")
moreGFInput$ = moreGFInput$ + INPUT$(LOC(1), #1)
LOOP
GFInput$ = GFInput$ + moreGFInput$
' Parse and print the flow rate and temperature
n% = INSTR(GFInput$, "CH:")
FlowRate! = VAL(MID$(GFInput$, n% +5))
n% = INSTR(GFInput$, "CH2:")
Temperature! = Val(MID$(GFInput$, n% + 5))
PRINT FlowRate!, Temperature!
END IF
END IF
LOOP
CLOSE ' End communications.
END
error.trap:
RESUME NEXT
The flowmeter is calibrated at the factory in a test stand that duplicates or models the
customer application. The calibration process produces the information needed to relate
RTD signal to an actual mass flow rate. That calibration information is entered into the
flowmeter. Information about the customer's process such as pipe inside diameter and the
process standard density is also entered. Situations exist where a pipe or duct may have two
or more distinct process flow streams or the flowmeter needs to be used in more than one
installation. The flowmeter can accommodate three sets of calibration information, therefore
it can be used to monitor multiple flow streams or used in multiple installations. Each set of
calibration information is called a Group. The factory has determined from the application
data supplied at the time of order whether the flowmeter would benefit from using multiple
Groups . If multiple Groups are not used in the flowmeter the following section can be
skipped. If multiple Groups are used, all the information necessary has been entered into the
flowmeter. However, the method and conditions that determine the current Group can be
altered.
w To determine if the flowmeter is set to use the Multiple Groups:
From the Main menu press 1. The flowmeter will enter the normal mode of operation. If the
mode on the last line of the window (see Figure 9) is Auto, or Link then the flowmeter
contains multiple calibration groups.
If the mode is normal or Norm is displayed in the normal operation window, the flowmeter
may still contain multiple calibration groups.
Multiple Groups
Figure 25 - Series Serial Communication Code Example Cont’d