Fluid Components International LLC
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12
Doc. No. 06EN003367 Rev. E
ST50 Mass Flow Meter
RS232 / FC88
Menu Control and Organization
All user entries begin at the input mode prompt “>” except when the instrument is in the Main Function Mode. Most entries require at
least two key strokes; a capital letter and the [ENTER] key, or one or more numbers and the [ENTER] key. If the unit is in the Main
Function Mode just press the desired function letter to make an entry.
Backspaces are made using the backspace [BKSP] key. Some entries are case sensitive between numbers and letters. Be sure the
SHIFT key is pressed to indicate the correct case. A square after the prompt caret indicates the FC88 is in lower case. A slightly raised
rectangle in the same spot indicates the FC88 is in the upper case.
It is recommended that the FC88 be plugged into the instrument before power is applied. If the FC88 is plugged in while the instrument
power is on and the FC88 does not respond, press [ENTER]. If there is still no response press [N] or cycle the power.
Note:
The Zero and Span may be changed from the original calibration, provided the new values are within the original
calibrated range; i.e., if the original calibration was 1 to 100 SCFM (4-20 mA), the new zero (4 mA) must be equal to or
greater than 1 SCFM, the new span (20 mA) must be equal to or less than 100 SCFM.
Some entries require a Factory pass code. If this occurs contact FCI Field Service to continue programming the instrument. The
instrument will prompt the user when this is necessary. Do not change any parameters that require this code unless there is an absolute
understanding of the instrument's operation. The user cannot exit some routines unless all entries are completed or the power is cycled.
Note:
Always press
“T”
before unplugging the FC88. If a frozen meter display is observed, reconnect the FC88 and wait 5
seconds for the meter to initialize. Disconnect the FC88 and confirm your meter display is varying.
The top level of the menu is shown in Table 5 in Appendix B. Enter the command letter mnemonic as listed in the tables below and in
Appendix B to run a command. Exit a command at any time by entering “Q” [ENTER] in the menus D, K, V, W, or Z.
Units
Select
E=English
M=Metric
Select
0= SFPS
5 = SMPS
or
1 = SCFM
6 = NCMH
or
2 = SCFH
7 = NCMM
or
3 = LBS/H
8 = KG/H
o r
4 = GPM
9 = LPM
10 = SCMH
11 = NMPS
12 = SCMM
For Volumetric or Mass Flow
Select
R = Round pipe or duct
or
S = Square duct
Set
Diameter or Wide
x
High (in inches or mm)
Set
CMaxflow = Maximum flow rate (span)
Set
CMinflow = Minimum flow rate (zero)
Table 2. Z Menu – Units and Scaling Setup
Note
: Changing units requires rescaling the unit (set new zero and span).
Table 3. V Menu – Output Configuration Setup
Table 1. Diagnostics and Factory Settings
C Calibration Information
Display only: A/D, Delta-R, Ref-R data values
D Diagnostics
Display only: List of unit parameters.
K Factory Calibration Settings
Display only: Cal. parameters; i.e., linearization
and temperature compensation coefficients.
R Factory Reset
Replaces user data with factory calibration data.
