Fluid Components Intl ST51A, Installation, Operation & Maintenance Instruction Manual

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OPERATION ST51A/ST75A/ST75AV Mass Flow Meters
30 Fluid Components International LLC
Changing Flow Units, Example
Table 7 below lists the steps for making a flow units change with these example parameters: SCFM Flow Units and 3-inch Schedule 40
round pipe size set-up:
Table 7 – Flow Unit Example
Command Display Description
ENTER Menu: > Starting from Normal Operation Mode.
Z E for English, M for Metric After entering Flow Unit Set-up menu (Z), select
English or Metric units.
E 0=SFPS, 1=SCFM, 2=SCFH, 3=LB/H,
4=GPM
After selecting English units (E), select specific
type units. For this example: SCFM (1) which is a
volumetric unit.
1 R Round duct or S rectangular
After selecting Standard Cubic Feet, select round
or rectangular duct.
R Dia.: 4.0260000
Change? (Y/N)>
After selecting Round duct (R), change displayed
Diameter parameter?
Y Enter value: #
After responding “Y” to diameter change, enter
diameter value.
3.068 Area: 7.3926572 CMinflow: 0.0000000
Change? (Y/N)>
After entering value for diameter, the computed
area is displayed. Change displayed CMinflow
parameter?
N Maximum flow: 462.04
Enter to continue
After responding “N” to CMinflow parameter
change, the max. flow is displayed. Press ENTER
to continue.
ENTER CMaxflow: 462.04
Change? (Y/N)
Change displayed CMaxflow parameter?
Y Enter value: # After responding “Y” to CMaxflow change, enter
CMaxflow value. (Note: Instrument checks if
resulting max. flow is too large.)
462.04 CMintemp (F): -40.00000
Change? (Y/N)>
After entering value for CMaxflow, change
CMintemp (F) parameter?
N CMaxtemp (F): 250.00000
Change? (Y/N)>
After responding “N” to CMintemp change,
change CMaxtemp (F) value?
N Percent of Range is: OFF
Change to ON?>
After responding “N” to CMaxtemp change,
change Percent of Range On/Off status?
N 100.0 SCFM
After responding “N” to Percent of Range On/Off
status change, instrument returns to Normal
Operation Mode.
V Menu: Configure Outputs (4-20 mA and Source/Sink Outputs)
Use the V menu to configure the analog and source/sink outputs. The flowchart in Figure 26 below gives an overview of the V menu programming.
Note: Press [ENTER] as required to loop through all numbered choices. You cannot exit a number loop (Select 1, Select 2,
etc.) without making a valid number choice.