Intek 111D - Manual (Page 6)

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MAN114 REV C.wpd
SECTION 2
!
INSTALLATION
.
IMPORTANT: All transducers have a directional arrow on the tag
and/or etched into a metal part. Before installing a sensor, please note
proper flow direction. This is critical to sensor operation.
.
IMPORTANT: If you have more than one
Rheotherm unit, make sure
the complete serial number of the transducer matches the complete serial
number of the electronics. The transducer and electronics are a matched
set. Components with different serial numbers should not be
interchanged. The transducers have no user serviceable parts, so do not
try to disassemble, as permanent damage may result.
.
IMPORTANT: If you are installing
Rheotherm instruments in outdoor
environment, it is highly recommended that a “roof,” “shelter” or
protective cover to be provided to shield the transducer and electronics
from direct impact of environment conditions. Sudden and large changes
in temperature can affect instrument performance. Heat from the outside
can build up the temperature inside electronics enclosures, and can exceed
the temperature ratings for the electronics within.
2.1 TRANSDUCER
The transducer style supplied with your meter is listed in the model code number in SECTION 6.
Proper installation of the sensor is necessary for achieving accuracy and repeatability. Installation
suggestions for each type of standard transducer are given here. For custom transducer installations,
refer to CUSTOM INFORMATION — SECTION 6.
Be sure wetted surfaces are clean before installing. If cleaning is needed, use non-residue solvent and
wipe dry. If the sensor has a connector box, keep moisture out. Make sure the lid is tightly sealed and,
if supplied, the gasket is in place. Seal conduit lines at the connector box if conduit lines can become
wet.
1. Tube (nonintrusive) — 1 '
16
and
c transducers, unless they have optional ¼" O.D. ends,
particularly require special care in handling and installing to avoid damage to sensor tube
stubs.
.
CAUTION: Tube transducers are made with thin-walled tubing —
use care when installing.
All tube transducers (other than 1 '
16
&
c inch) should have straight line input and output
sections, typically 20 pipe diameters on the inlet and 6 to 10 diameters on the outlet.
Installation locations for tube style transducers should be selected to ensure a continuous and
uniform fluid flow within the sensing tube. Vertical or angled installations should be in
locations where the fluid is flowing up through the sensor. Connection in the line is via
compression fittings, hose with clamp, threaded fittings or flanges, whichever is appropriate.
Care must be taken not to transmit a twisting force through the transducer's midsection. The