Rosemount 3051SFC_A User Manual

62
Reference Manual
00809-0100-4809, Rev DA
Section 3: Commissioning
September 2015
Commissioning
3.2 Transmitter commissioning
See the appropriate transmitter manual for wiring and configuration instructions.
3.3 Commissioning the Annubar sensor
3.3.1 Direct mount transmitter
Prepare transmitter for service
Prior to commissioning the flowmeter, a zero trim procedure (or “dry zero”) should be
performed to eliminate any positional effects to the transmitter. Refer to Figure 3-1 and Figure
3-2 for valve designations.
1. Open first the equalizer valve(s) MEL and MEH or ME.
2. Close valves MH and ML.
3. Read the transmitter output. It should read within the range 3.98 mA to 4.02 mA. If the
output is outside of this range, perform a zero trim procedure as described in
transmitter manual (see Table 3-1 for transmitter manual document numbers).
“Calibrate out” line pressure effects
For applications with static pressures of 100 psi (6.9 bar) and higher, the DP sensor should be
zeroed for line pressure effects. The “zero” calibration procedure is affected by static pressure
and ambient temperature, but these effects can be minimized by zeroing the DP sensor at
normal operating conditions.
The effect of static pressure is calibrated out by exposing the transmitter to the line pressure
and performing a “zero” or wet calibration, as described below.
Although the line pressure effects are relatively small, they significantly affect the accuracy of
the Annubar sensor when used with low flows.
Table 3-1. Transmitter Manual Document Numbers
Transmitter
HART
®
document
number
FOUNDATION fieldbus
™
document number
PROFIBUS
®
document number
Rosemount
®
3051S
MultiVariable
™
Mass and
Energy Flow Transmitter
00809-0100-4803 N/A N/A
Rosemount 3051S Pressure
Trans mitter
00809-0100-4801 00809-0200-4801 N/A
Rosemount 3095
MultiVariable Mass Flow
Trans mitter
00809-0100-4716 00809-0100-4716 N/A
Rosemount 3051 Pressure
Trans mitter
00809-0100-4001 00809-0100-4774 00809-0100-4797
Rosemount 2051 Pressure
Trans mitter
00809-0100-4101 00809-0200-4101 N/A

Rosemount 3051SFC_A Specifications

General

Brand	Rosemount
Model	3051SFC_A
Category	Measuring Instruments
Language	English