Instruction manual

Instruction Manual Smart-Trak
®
50 Series
IM-50 Rev. A.2 11
VCO Fittings
1. Position the instrument with the flow direction arrow pointing in the direction of
flow.
2. Tighten the nut finger-tight, and then 1/8 turn tighter with a wrench. Do not over-
tighten!
3. 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.
VCR Fittings
1. Position the instrument with the flow direction arrow pointing the direction of
flow.
2. Install new gaskets that are compatible with the gas to be used.
3. Tighten the nut finger-tight, and then 1/8 turn tighter with a wrench. Do not over-
tighten!
4. 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.
1/4 Inch Female NPT
1. Position the instrument with the flow direction arrow pointing the direction of
flow.
2. Apply high quality Teflon tape to the male NPT fitting. Alternatively, use a high
quality paste pipe thread sealant suitable for the application and gas, and apply
this compound to the inlet and outlet fittings. Avoid getting the tape or the thread
sealant onto the first two threads to keep it out of your process gas.
3. Tighten each fitting by hand. Then, tighten no more than one (1) turn. Do not
over-tighten.
4. 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.