Honeywell SmartLine SLG 700 User Manual

Page 52 SLG 700 SmartLine Level Transmitter User’s Manual Revision 8
SLG720
The inner rod is comprised of 1.0m rod segments and one rod end. Depending on the
length of the probe there may be 0 to 6 1.0m rod segments. As with the rod probe, the rod
segments are attached to each other by way of a stud and lock washer, see Figure 3-13:
SLG720 Coaxial probe assembly (single outer tube depicted). In the coaxial probe
construction, a spacer is placed at each joint, retained by the lock washer.
If the coaxial probe is 2.0 m or shorter it will come with a single outer tube. If the probe
length is longer than 2.0 m, the outer tube will be supplied in segments. There are three
types of outer tube segments:
 Starter segment: which has an internal thread to attach to the process connector.
 Extension segment: which has external threads on both ends.
 End segment: which has an external thread on one end.
Probes over 2.0 m in length will always have one “starter” and one “end” segment, along
with 0 to 2 extension segments in between. The tubes are connected to each other by way
of a threaded tube coupler. It is recommended to build the coaxial probe 2 m at a time.
That is, attach two 1.0 m rod segments together and slip an outer tube over the rod.
Repeat until the probe is fully assembled.
Refer to Figure 3-13: SLG720 Coaxial probe assembly (single outer tube depicted) for
the SLG720.
Probe Length ≤ 1.0m:
Step
Action
1
Fully thread the nut onto the central conductor of the process connector. Place a
lock washer between the locknut and the rod segment and torque the nut against
the rod segment and lock washer to secure the connection.
Note: Tighten rod connection point to the following torque:
 SLG720 6.0Nm (4.4ft-lbs).
2
Slip the coaxial outer tube over the rod and spacer and tighten to the process
connector.
Note: Tighten connection point to the following torque:
 SLG720 30Nm (22ft-lbs).
It is recommended that a process compatible thread locking compound
(i.e. Loctite 242) be used on the outer conductor threaded joints.
3
Insert an end spacer into the end of tube. Align the holes in the end spacer with
the holes in the outer tube and insert the 2 locking pins. Refer to Detail B of
Figure 3-13: SLG720 Coaxial probe assembly (single outer tube depicted).

Honeywell SmartLine SLG 700 Specifications

General

Brand	Honeywell
Model	SmartLine SLG 700
Category	Transmitter
Language	English