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Ensure that all components have been received, including:
•
MPXI-F sensor (head and stem)
•
Float (or floats, if two floats purchased)
•
Optional Slide Mount
•
Stem Weight; Weight-Locking Pin and Set Screw for SS, Dowel Pin for PVDF
•
Assembly drawing
Assemble sensor mounting, float(s), weight and pins at installation location, if possible.
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If not already attached, slide mounting option onto stem. Loosen compression cap so it will slide easily
on stem. For probes with PVDF stems, be sure to account for thermal expansion clearance (see page
10) when placing slide mount on stem.
•
For SS sensors with float stops, refer to the assembly drawing included with the sensor for float stop
installation locations. PVDF float stops are installed at the factory.
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Note: If the floats do not fit through the tank/vessel mounting hole, mount them on the stem from
inside the vessel being monitored. Then secure the sensor to the vessel.
•
Slide floats onto stem. If using two floats, slide the lighter float on first. Tops of floats will be indicated
by sticker, taper, or etching on float. (See Figure 2.2) After ensuring top of float is toward MPXI-F sensor
head, remove sticker(s).
•
For PVDF stem:
- Insert weight(s) on end of stem
- Lock into place with dowel pin
•
For SS stem:
- Insert weight(s) on end of stem
- Insert weight-locking pin into end plug hole
- Lock into place with set screw, using 1/8” allen wrench
Install MPXI-F sensor on tank
•
When lifting and installing the sensor be sure to minimize the bending angle between the rigid stem at
the top and bottom of the sensor and the flexible stem in-between. Sharp bends at those points could
damage the sensor. The 10” bend radius of the PVDF probe’s shipping box can be used as a guide for
the smallest allowable bend for the PVDF stem (see MPXI-F/K Shipping Box Contents on page 4).
•
If your sensor’s stem and float(s) fit through the mounting hole, insert the weight and the floats into
the mount opening.
•
Carefully unroll and feed the MPXI-F sensor stem into the tank, being careful to not let the float(s) drop
uncontrolled on the stem. Slide the mount up to the top of the stem.
•
For PVDF stem:
- When the weight is on the bottom of the tank, secure the mounting option to the vessel
- Take any slack out of the flexible stem, raising bottom of stem to previously calculated clearance
height (see page 12).
- Tighten the compression fitting to hold stem in place.
•
For SS stem:
- When the weight is on the bottom of the tank, secure the mounting option to the vessel.
- Take any slack out of the flexible stem.
- Tighten the compression fitting to hold stem in place.
• Physical Installation Instructions
