Instruction manual
Instruction Manual Smart-Trak
®
50 Series
IM-50 Rev. A.2 10
5. Output Signals: The 50 Series has RS-232 communications as the standard
configuration, with optional RS-485, 0-5 VDC or 4-20 mA. The output signals
specified at time of order will be indicated on the data label.
6. The instrument has specific power supply requirements. See the table later in
this chapter for a complete listing of power requirements.
Installing the Instrument—Plumbing
Smart-Trak
®
50 Series
instruments are supplied with
compression, VCO
®
, VCR
®
, Festo
®
-type push-in or female
NPT process connections. To ensure a successful installation,
inlet and outlet tubing should be clean prior to plumbing the
instrument into the system. The shipping caps covering the
inlet/outlet fittings should not be removed until immediately
before installation.
Follow the installation instructions that are applicable to your instrument’s process
connection. Ensure that the tubing is free from burrs or sharp rims that may result from
cutting.
CAUTION! Before use, all plumbing should be checked carefully for leaks, especially at
the connecting fittings. All instruments are leak-tested prior to shipping. It is not a
requirement to leak test your instrument. Do not use liquid leak detectors such as Snoop
®
to
search for leaks inside or outside the Smart-Trak
®
50 Series. Instead, monitor pressure
decay.
Compression Fittings
1. Position the instrument with the flow direction arrow pointing in the direction of
flow.
2. Verify the position of the front and back ferrule. Insert the tubing into the fitting.
Be sure that the tubing rests firmly on the shoulder of the fitting and that the nut is
finger-tight. Scribe the nut at the six o’clock position.
3. While holding the fitting body steady with a backup wrench, tighten the nut 1-1/4
turns, watching the scribe mark make one complete revolution and continue to the
nine o’clock position. For 1/8-inch fittings, tighten only 3/4 turns from finger-
tight. DO NOT OVER-TIGHTEN!
4. If you use flexible tubing (Example: Polyflow) use an “Insert” (see
www.swagelok.com)
5. Check the system’s entire flow path thoroughly for leaks. Do not use liquid leak
detectors on or near the unit. Exposing the instrument to leak detector fluid may
cause damage.