SMAR LD291, Operation And Maintenance Instruction Manual

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Installation
1.7
The figure 1.2 shows how to use the tool to fix the process transmitter tap.
Figure 1.2 – Fixing of the Transmitter in the Tap
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 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 LD291 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.