Anderson LD Series Manual de instrucciones - Página 5

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Section 2 - Installation

2.1 MOUNTING

2.1 MOUNTING
2.1 MOUNTING
2.1 MOUNTING
2.1 MOUNTING
The transmitter is designed to be mounted on the process vessel. Connection is secured via
2" Tri Clamp - gasket to be customer supplied. A typical application is as follows:

FIGURE 2-1 TYPICAL APPLICATION VIEW

FIGURE 2-1 TYPICAL APPLICATION VIEW
FIGURE 2-1 TYPICAL APPLICATION VIEW
FIGURE 2-1 TYPICAL APPLICATION VIEW
FIGURE 2-1 TYPICAL APPLICATION VIEW
ELE CTRICAL WIRING
ELECTRO NIC SENSOR

2.2 ELECTRICAL WIRING

2.2 ELECTRICAL WIRING
2.2 ELECTRICAL WIRING
2.2 ELECTRICAL WIRING
2.2 ELECTRICAL WIRING
2.2.1 Signal Cable
Anderson recommends the use of 18-24 AWG, 4 conductor cable. In addition, it should be
foil shielded with a continuous drain wire (If Factory supplied, Belden #9534 or equivalent).
Although only two conductors and the drain wire are utilized, cable as specified above will
retain its roundness when inserted into the seal-tight grommet. This will prevent moisture
from entering the conduit housing of the transmitter. The drain (ground) wire should be
attached to ground at only the receiver end. Be sure that this wire is cut back far enough so
as not to make connection with any stainless steel inside the conduit head of the sensor.
Installation as described will prevent induced ground loop currents from flowing through the
drain wire causing errors in the mA signal.
WARNING: To prevent signal interference, do not run signal cable closer than 12" to
AC wiring, or if you must, cross it at a 90° angle.
NOTE: If using customer supplied cable, be sure it is .109" - .209" O.D.. The use of
larger diameter cable will make entry of the cable into the conduit housing
difficult, while the use of smaller diameter cable may allow moisture to enter the
transmitter.
2.2.2 Transmitter Power and Wiring
The model LD Level Transmitter requires 12-40 VDC for proper operation. If below 24 VDC,
a regulated supply is recommended. The total loop resistive load (signal wire, signal
receiver, optional display, but not including transmitter) must not exceed the value given in
Figure 2-3 corresponding to the voltage of the DC power supply used. Allow 23.3 ohms per
1000 feet for each conductor of 24 AWG sized wire (the smaller the AWG gauge, the larger
the wire cross section).
PID LOOP CONTROLLER
CONTROL PANEL
INSIDE VIEW
FILLER BOWL
P
5
AGE
4-20mA OUTPUT
TO CONTROL VA LVE
(or I/P)