Rosemount 2088 - A.3.8 Physical Specifications; A.3.9 Process Connections; A.3.10 Process Wetted Parts; A.3.11 Non-Wetted Parts

31
Reference Manual
00809-0100-4108, Rev CA
Hardware Installation
March 2017
Hardware Installation
3.3.2 Environmental considerations
Best practice is to mount the transmitter in an environment that has minimal ambient
temperature change. The transmitter electronics temperature operating limits are –40 to
185 °F (–40 to 85 °C). Refer to Appendix A: Specifications and reference data that lists the
sensing element operating limits. Mount the transmitter so that it is not susceptible to
vibration and mechanical shock and does not have external contact with corrosive
materials.
3.3.3 Mechanical considerations
Steam service
For steam service or for applications with process temperatures greater than the limits of
the transmitter, do not blow down impulse piping through the transmitter. Flush lines with
the blocking valves closed and refill lines with water before resuming measurement. Refer
to Figure 3-4 on page 35 through Figure 3-6 on page 36 for correct mounting orientation.
3.4 Installation procedures
3.4.1 Mount the transmitter
The following are approximate weights of each transmitter:
 Rosemount 2088 2.44 lb (1,11 kg)
 Rosemount 2090F 2.74 lb (1.24 kg)
 Rosemount 2090P 2.96 lb (1.34 kg).
In many cases its compact size and light weight makes it possible to mount directly to the
respective apparatus without using an additional mounting bracket. When this is not
desirable, mount directly to a wall, panel, or two-inch pipe using the optional mounting
bracket (see Figure 3-1 on page 32).
For dimensional drawing information refer to Appendix A: Specifications and reference data
on page 73.
Note
Most transmitters are calibrated in the upright position. Mounting the transmitter in any
other position will shift the zero point to the equivalent amount of liquid head pressure
caused by the varied mounting position. To reset zero point, refer to “Sensor trim overview”
on page 56.
Electronics housing clearance
Mount the transmitter so the terminal side is accessible. Clearance of 0.75-in. (19 mm) is
required for cover removal. Use a conduit plug in the unused conduit opening. Three inches
of clearance is required for cover removal if a meter is installed.
Environmental seal for housing
Thread sealing (PTFE) tape or paste on male threads of conduit is required to provide a
water/dust tight conduit seal and meets requirements of NEMA
®
Type 4X, IP66, and IP68.
Consult factory if other Ingress Protection ratings are required.