Table of Contents
Advertisement
Reference Manual
00809-0100-3385
5.
CAUTION
Make sure lubricant does not contact any part of the sensor tip particularly the glass bulb.
6.
7.
8.
9.
10.
11.
NOTICE
A stainless steel ferrule is available if the TEFLON ferrule does not adequately grip. When using the metallic
ferrule, be careful and avoid over tightening. This can damage the sensor tube.
CAUTION
If the male connector leaks during insertion or retraction, replace the O-ring in the male connector
body (A).
Note:
Maintenance
Cover the 1" MNPT pipe threads of the male connector body (A) with Teflon tape (not
provided) to protect them from galling during reinstallation.
Pass the wires from the new sensor through the process end male connector (A). Make
sure that the beveled edge of the ferrule faces the process end of the sensor. Snug the hex
nut (B) to keep it n place. Do not tighten down fully on the hex nut at this time.
Pass the wires from the new sensor through the hex nut (D), the split ferrule (from the old
sensor), male connector body (C), O-ring, and through the junction box from the "neck"
opening and out through the space between the printed circuit board and the side of the
junction box. Butt the ferrules beveled edge and the sensor tube against the junction male
connector (C). Screw the hex nut (D) by hand until the tube is "locked" into the male
connector body. Make sure that the male connector body (C) is sufficiently tightened. The
sensor will "click" into place by pulling the sensor tube away from the junction box, but
will not move from side to side or pull clear of the male connector. If the sensor tube is
correctly attached to the junction box, wrench tighten hex nut (D) on male connector
body (C). (See Figure 4-3.) Do not put the sensor tube in a vise or use a pipe wrench to
tighten the hardware as these will damage the sensor. If sensor tube is not correctly
attached to the junction box, loosen hex nut (D) and repeat.
Connect the sensor wires to the terminals on the printed circuit board in the junction box
in the manner recommended on the junction box cover, or see Figure 2-3. Reattach the
BNC connector to the preamp. Screw on the cover of the junction box.
Insert the sensor in the process fitting. Stop it against the closed ball valve. Slide the
processend male connector down the sensor tube to mate with the process fitting. Tighten
the male connector into the process fitting.
Pull back hard on the sensor assembly, as if trying to remove the sensor, to be certain that
the sensor cannot come free from the valve assembly and male connector. The built-in
retraction stop collar at the end of the sensor will butt against the shoulder of the male
connector.
Open ball valve and position the sensor at the desired insertion depth and orientation.
Using a crescent or open end wrench, tighten the hex nut (B) to secure the sensor in place.
If the sensor is to be stored, the rubber boot should be filled with 7 pH buffer solution and
replaced on sensor tip until ready to use.
Maintenance
February 2019
17
Advertisement
Table of Contents
