LD301 – Operation and Maintenance Instruction Manual
1.8
Figure 1.2 – Drawing of LD301 Mounted on the Panel or Wall
Observe operating safety rules during wiring, draining or blow-down.
WARNING
Normal safety precautions must be taken to avoid the possibility of an accident occurring when
operating in conditions of high pressure and/or temperature.
Electrical shock can result in death or serious injury.
Avoid contact with the leads and terminals.
Process leaks could result in death or serious injury.
Do not attempt to loosen or remove flange bolts while the transmitter is in service.
Replacement equipment or spare parts not approved by Smar could reduce the pressure
retaining capabilities of the transmitter and may render the instrument dangerous.
Use only bolts supplied or sold by Smar as spare parts.
Some examples of installation, illustrating the transmitter position in relation to the taps, are shown in
Figure 1.3. The pressure taps location and the relative positions of the transmitter are indicated in Table
1.1.
Process Fluid Location of 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
For liquids, condensates, wet vapors and gases the impulse lines must be bent on the ratio 1:10 to
prevent bubbles from accumulating;
The transmitter and its impulse lines must be tightly fixed;
If necessary, install the condensate and mud pots;
Use manifold valves to facilitate maintenance and adjustments.
WALL OR PANEL MOUNTING
(See Section 5 – spare parts list
for mounting brackets available)
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