12
OFDMANUAL 0816
Re-tighten the Socket Cap Screws.
Tighten the Hex Nuts on the top of the Locking Collar one half turn. These nuts should
never be over tightened. Their major function is to apply light pressure on the chevron packing to
ensure a seal between the seal housing body and the insertion shaft.
10.
11.
If you have an OFD™ with a Flanged Seal Housing, you may now attach it to the valve on the pipeline.
Slowly open Full-opening Ball Valve and check for leaks.
Loosen Socket Head Screw on the Locking Collar.
Push the OFD™ in until the Second Mark is at the top edge of the Locking Collar. FIG. 3-9.
FIG. 3-9
12.
13.
14.
15.
I N S TA L L AT I O N C O N T I N U E D
Second Mark
REMOVING THE OFD™ SENSOR
To remove the OFD™ sensor, first disconnect all
electrical connections to the OFD™ enclosure.
Make sure that the line pressure is below 100 psi.
Then, slowly and with caution loosen the Socket
Cap Screws on the Lock Down Collar.
NOTE: Once the Socket Cap Screws have been
loosened, the OFD™ shaft may push out from the
line. If pressure in the line is above 100 psi, it may
do so with enough force to cause bodily injury or
damage to the instrument.
Slide the OFD™ sensor upward until it stops and
the probe rests inside the seal housing. FIG. 3-10.
Next, close the Full-opening Ball Valve tightly. The
OFD™ sensor may now be unbolted from the sys-
tem.
1.
2.
3.
4.
FIG. 3-10
Socket Cap Screws
