811-1005-E01 Datasheet, PDF (9/28 Pages) Magnetrol International, Inc. – Kotron® Model 811 RF Point Level Sensor

3. Apply thread sealant to the mounting nut. Screw the
mounting nut into the mounting connection until tight.
1 23 4
Probe
OPEN
(White)
4. Remove the Mylar housing insulator located over the
clamp. DO NOT DISCARD.
5. Loosen both socket head screws from the clamp. Pull the
clamp and Teflon retaining bushing off of the probe.
Clamp
Teflon
Retaining
Bushing
Probe Connection Screw
Mylar Housing Insulator
(slips over clamp)
Socket Head
Clamp Screws (2)
Upper Probe
Mounting Gland
Lower Probe
Mounting Gland
6. While holding on to the probe cable, loosen the upper
packing gland nut. DO NOT ALLOW THE PROBE
CABLE TO FALL INTO THE VESSEL.
7. Pull the excess cable up through the packing gland nut
until the cable is taut. Tighten the packing gland nut.
8. Cut the cable 1.35" (34 mm) above the packing gland nut
and strip off 1.25" (32 mm) of insulation.
Flexible
Probe
Probe
Termination
Optional Weight
Tank Bracket
Connection
Probe Locking
Set Screw
Optional
Mounting
Bracket
(Used w/
Insulated
Probes)
Figure 10
9. Slide the Teflon retaining bushing onto the cable and seat
it into the packing gland nut. Slide the clamp onto the
cable and seat it against the Teflon retaining bushing.
10. Tighten both socket head screws, on the clamp, to approx-
imately 35 in/lbs of torque. Slip the Mylar insulator over
the clamp.
Integral Mount with Flexible Probe
Caution: Check probe terminal connection carefully to be certain
lug will not short to packing gland or interfere with assem-
bly of amplifier housing to probe.
MYLAR
INSULATOR
UPPER
MOUNTING
NUT HALF
PROBE
WIRE SCREW
CLAMP
SET SCREW
CLAMP RETAINING
BUSHING
LOWER
MOUNTING
NUT HALF
SEAL
FLARE
PROBE
CABLE
3/8 16 UNC 2B
ECTFE Flexible Probe
1.6 Installing a Remote Mount Unit
NOTE: All remote mount units use triaxial cable that is shipped in a
length specified at the time of order. This cable must always
make all 3 connections at the main amplifier. At the probe
head, the cable will always make at least 2 connections.
(PROBE and GROUND). The final connection (GUARD) is only
used with the guarded probe. Cut the guard wire back to the
cable and dress with tape when NOT in use.
1.6.1 Remote Mount with Guarded Probe
1.6.1.1 Electronic Housing
Remote electronic housings are normally shipped from the
factory assembled with a mounting bracket. To install the
electronic housing, proceed as follows. Refer to Figure 11.
1. Install bracket in a location which will isolate unit from
temperatures below -40°F (-40° C) and over +160° F
(+71° C) or vibration/mechanical damage. Unit can be
mounted up to 150 feet (45 m) from probe assembly.
Location should also offer easy access for wiring,
calibration and maintenance.
50-608 Kotron Model 811 RF Point Level Sensor
6