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

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ST51A/ST75A/ST75AV Mass Flow Meters OPERATION
Fluid Components International LLC 27
3 OPERATION
Overview
The ST51A/75A Series flow meters are configured at the factory for the customer-specified display and output settings. See the calibration
information shipped with the instrument to review this information. Follow the steps in this section to change the display and outputs if desired.
Note: ST51A/ST75A units with a “Standard Calibration” (0 or A in Block 6 of the part number) are delivered in flow units of
Standard Feet per Second (SFPS). Follow the steps in this section to customize the display and outputs if needed.
Instrument Configuration and Setup Using the Service Port (RS-232)
If configuration or setup changes are needed, the ST51A/ST75A/ST75AV is provided with a serial interface for displaying or changing its
configuration using FCI’s handheld FC88 Calibrator or a computer running a terminal program (for a serial console setup). See Serial Interface
Connector J9 page 25 for serial port connection details.
Note:
The serial port is intended for temporary use only.
Caution: Only factory-trained personnel are to configure or make setup changes to this instrument.
Caution:
To avoid spurious reset, remove power to the flow meter first before attaching the FC88. Reapply power to the flow
meter after making the FC88 connection.
To make a serial console connection to the flow meter use your preferred terminal program (e.g., Tera Term Pro or equivalent) to configure the
PC’s serial port using the parameters summarized in Table 5 below. For PC USB port: Use Windows’ Device Manager to see the virtual COM
port number that Windows assigned to the USB-to-serial adapter. Specify this virtual COM port number in the terminal program configuration.
Table 5 – Serial (COM) Port Configuration
COM Port Number: Number of COM port connected to instrument (see text above)
Baud Rate: 9600
Number of Bits: 8
Stop Bits: 1
Parity: None
Flow Control: None
Terminal Emulation: VT100
Plug the FC88 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.
Most entries require at least two keystrokes: a capital letter or number and the [ENTER] key. User entries begin at the input mode prompt “>”,
except when the instrument is in the Main Function Mode (just press/enter the desired function letter followed by [ENTER] to make an entry).
Backspaces are made using the [BKSP] key. Letters are case sensitive. For PC serial console: Use upper case letters only (for this
application the Caps Lock key is helpful). For FC88: Use the [SHIFT] key to alternate between letters and numbers. A square after the
prompt caret indicates the FC88 is in letter mode. A slightly elevated rectangle indicates the FC88 is in number mode.