Emerson 4500 Manuel D’Utilisation

Page de 70
Reference Manual
00809-0100-4027, Rev AA
December 2005
Rosemount 4500
2-4
INSTALLATION 
PROCEDURES
For dimensional drawing information refer to Appendix A: Reference Data.
Electronics Housing
Provide 0.75 inches (19 mm) of clearance for units without an LCD display. 
Three inches of clearance is required for cover removal if a meter is installed.
Cover Installation
Always ensure a proper seal by installing the electronics housing cover so the 
o-ring is engaged. Use Rosemount O-rings.
Mount the Transmitter
The Rosemount 4500 is designed to be mounted directly to a process pipe or 
vessel using a standard sanitary fitting. The transmitter is available with either 
a 1.5 or 2-inch Tri-Clamp
®
 connection or a fractional line fitting.
When installing the transmitter to the sanitary fitting it is important to use the 
proper sanitary clamp and gasket (user-supplied). Check the clamp and 
gasket specifications before installing. Refer to Table 2-2 for a list of standard 
sanitary clamps, their respective maximum pressure ranges, and the 
recommended torque to be applied when mounting.
Figure 2-3. Rosemount 4500 
Mounting Configuration Using a 
Sanitary Fitting
Table 2-1.  Connection Size
Table 2-2.  Standard Sanitary 
Clamp Models
1.5 or 2-in.
Tri-Clamp
Connection
User 
Supplied 
Gasket and 
Clamp
B
A
DETAIL OF SANITARY 
CONNECTION
4500_04_AA.EP
S, 
4500_24_AA.EP
S
Description
Connection Size in (mm)
A
B
1
1
/
2
 inch Tri-Clamp
1.50 (38)
1.99 (50)
1.71 (43)
2 inch Tri-Clamp
2.00 (51)
2.52 (64)
2.22 (56)
Fractional Line Fitting
1.50 (38)
1.99 (50)
1.50 (38)
Clamp Model
psi @ 70 °F
(kPa @ 21 °C)
psi @ 250 °F
(kPa @ 121 °C)
Recommended Torque
13 MHHM 1.5-inch
450 (3 103)
250 (1 724)
25 in-lb (2.8 N•m)
13 MHHM 2-inch
500 (3 448)
250 (1 724)
25 in-lb (2.8 N•m)
13 MHHS 1.5-inch
600 (4 138)
300 (2 069)
25 in-lb (2.8 N•m)
13 MHHS 2-inch
550 (3 793)
275 (1 896)
25 in-lb (2.8 N•m)
13 MHP 1.5-inch
1500 (10 345)
1200 (8 276)
20 ft-lb (27 N•m)
13 MHP 2-inch
1000 (6 896)
800 (5 517)
20 ft-lb (27 N•m)