ABB 266 HART - P-Style Transmitter Mounting and Bracket Details

2600T Series Pressure transmitters | OI/266/HART-EN Rev. D 19
Mounting a P style pressure transmitter (266G, 266A, 266H, 266N)
The pressure transmitter can be mounted directly on the manifold.
A mounting bracket for wall or pipe mounting (2” pipe) is also available as an accessory.
Ideally, the pressure transmitter should be mounted in a vertical position to prevent subsequent zero shifts.
Important
If the transmitter is installed inclined with respect to the vertical, the filling liquid exerts hydrostatic pressure on the measuring diaphragm, resulting in a zero
shift. In such an event, the zero point can be corrected via the zero push-button or via the “set PV to zero” command. Please refer to the [configuration
section] for further details. For transmitters without diaphragm seals the Vent / Drain considerations below should be taken into consideration.
Figure 16: Model 266H or 266N Hi overload resistant P-Style transmitter with barrel housing installed on a 2”pipe with optional bracket
(B1 carbon steel or B2 Stainless Steel 316L)
91 (3.58)
1/2 - 14 NPT
117 (4.60)
32 (1.26) width across
flats of exagon
113 (4.45) 29 (1.14)
18 (0.71) 18 (0.71)
145 (5.71)
Ø65 (2.56)
140 (5.54)
49 (1.93)
39 (1.54)
54 (2.13)
16 (0.63)
18 (0.71)
B5 Flat type bracket details
1 - U-bolt
2 - U-bolt fixing bolt and washer
3 - Transmitter fixing bolts
4 - B5 bracket
1
3
4
2
Figure 15: Flat type mounting bracket kit (B5)