SMAR ld301, Инструкция по эксплуатации и техническому обслуживанию

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Installation
1.3
Fig. 1.2 – Drawing Mounting of LD301 on the Panel
Observe operating safety rules during wiring, draining or blow-down.
Some examples of installation, illustrating the position of the transmitter in relation to the taps, are
shown in Figure 1.3. The location of pressure taps and the relative position of the transmitter are
indicated in Table 1.1.
Process
Fluid
Location
of Taps
Location of LD301 in
Relation to the Taps
Gas Top or Side Above the Taps
Liquid Side Below the Taps or at the Piping Centerline
Steam Side Below the Taps using Sealing (Condensate) Pots
Table 1.1 - Location of Pressure Taps
NOTE:
Except for dry gases, all impulse lines should slope at the ratio 1:10, in order to avoid trapping
bubbles in the case of liquids, or condensate for steam or wet gases.
ELECTRONIC HOUSING ROTATION
The electronic housing can be rotated in order to better position the digital display. To rotate it, use the
Housing Rotation Set Screw, see Figure 1.4
WARNING: EXPLOSION PROOF INSTALLATIONS
The electronic housing and the sensor assembly in potentially explosive atmospheres must have a
minimum of 6 threads fully engaged. The provided joint allows 1 turn extra. Try to adjust the display
window position by rotating the housing clockwise. If the thread reaches the end before the desired
position, then rotate the housing counterclockwise, but not by more than one turn of the thread end.
Transmitters have a stopper that restricts housing rotation to one turn. See Section 5, Figure 5.1.
The digital display itself can also be rotated. See Section 5, Figure 5.4.
NOTE
The process flange of the level transmitters can be rotated ± 45º. To do this just loosens the two screws
(Fig. 1.1) and rotate the flange. Do not take the screws out. There is a label (Fig. 1.1) on the
transmitter with these instructions
PANEL MOUNTING
(See section 5 - spare parts list
for mounting backets available)