Rosemount 3095FB - Maintenance Menu; Sensor Trim Procedure (Full Calibration)

Reference Manual
00809-0100-4738, Rev DA
May 2006
4-16
Rosemount 3095FB
Transmitter Comm…
Units…
Damping…
Device Info…
Sensor Limits…
Data Formats…
LCD Display…
These seven links have the same functions and configurations as those found
under the Setup menu. The only difference is the changes made happen
immediately to the transmitter, as apposed to working in disconnect mode
with the Setup menu. For complete information and on configuring these
screens, reference the instructions found under the Setup menu section in
this same chapter.
Maintenance Menu Sensor Trim…
The sensor trim screens are used during bench and field calibration of the
3095FB transmitter.
In addition to the User Interface Software, the following equipment is required
for a sensor trim:
• 3095FB transmitter
• Dead-weight tester
• Power supply and load resistor
• Vacuum pump or a barometer that is at least 3 times as accurate as the
3095FB AP sensor. The barometer is preferred. (Only required for
transmitters equipped with an AP sensor).
• Ice bath and hot oil bath for trimming the RTD probe.
Table 4-5 identifies the sensor range limits for the 3095FB transmitter.
Table 4-5. Sensor Range Limits
Sensor Trim Procedure (Full Calibration)
1. Isolate the transmitter from the process by closing the block valves
and opening the equalize valve on the manifold.
Sensor LRL URL
DP Range 2 -250 in.H20 (-622,7 mbar) 250 in.H20 (622,7 mbar)
DP Range 3 -1000 in.H20 (-2,49 bar) 1000 in.H20 (2,49 bar)
AP Range 3 0.5 psia (1,245 mbar) 800 psia (55,2 bar)
AP Range 4 0.5 psia (1,245 mbar) 3626 psia (250 bar)
GP Range C 0 psig (0 bar) 800 psig (55,2 bar)
GP Range D 0 psig (0 bar) 3626 psig (250 bar)
PT -40 °F (-40 °C) 1200 °F (649 °C)