14 OI/266/HART-EN Rev. D
| 2600T Series Pressure transmitters
266 Models - HART
It is important to mount the transmitter and to lay the process
piping so that gas bubbles, when measuring liquids, or
condensate when measuring gases, will flow back to the
process and not enter the transmitter measuring chamber.
Optional Vent/drain valves (code V1/V2/V3) on the transmitter
are located on the sensor flanges.
The transmitter has to be positioned so that these drain/vent
valves will be located higher than the taps on liquid service in
order to allow the venting of entrapped gas or below the taps
on gas service in order to allow the air to vent off or
condensate to drain off.
For safety reasons, take care of the drain/vent valves position
so that when the process fluid is removed during the drain/
vent operation it is directed down and away from technicians.
It is recommended to mount the transmitter to prevent this
possible source of damage for unskilled operators.
Figure 6: Drain/vent valves configuration (respectively V1, V2, V3)
Bracket mounting (optional)
Different mounting brackets are available please refer to the relevant installation drawing below
89 (3.48)
142 (5.59)
(*)
179 (7.02)
91 (3.58)
116 (4.57)
29 (1.14)
18 (0.71)
18 (0.71)
210 (8.28)
11
(0.43)
113 (4.45)
72 (2.83)
66 (2.60) with plug
78 (3.07) with d/v valve
58 (2.28) 55 (2.17)
Figure 7a: Differential Pressure Style transmitter with barrel housing installed on a horizontal pipe with optional bracket (B2)
Important
In case of a High Static differential pressure transmitter, please
notice that the Vent/Drain valves can be configured only on the pro-
cess axis (V1).
Содержание 266 HART Series
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