
Quick Installation Guide
00825-0100-4774, Rev DA
April 2010
Rosemount 3051
12
STEP 6: TRIM THE TRANSMITTER
NOTE
Transmitters are shipped fully calibrated per request or by the factory default of full scale
(span = upper range limit).
Zero Trim
A zero trim is a single-point adjustment used for compensating mounting position and line
pressure effects. When performing a zero trim, ensure that the equalizing valve is open and
all wet legs are filled to the correct level.
The transmitter will only allow 3-5% URL Zero error to be trimmed. For greater zero errors,
compensate for the offset by using the XD_Scaling, Out_Scaling and Indirect L_Type which
are part of the AI Block.
Using the host system
Perform a Zero Trim method if the host system supports methods associated with the
TRANSDUCER 1400 block. Otherwise, if the host system does not support methods see
the 3051 reference manual (document number 00809-0100-4774).
Approved Manufacturing Locations
Emerson Process Management - Rosemount Inc. — Chanhassen, Minnesota, USA
Emerson Process Management GmbH & Co. OHG — Wessling, Germany
Emerson Process Management Asia Pacific Private Limited — Singapore
Beijing Rosemount Far East Instrument Col., Limited — Beijing, China
Emerson Process Management — Daman, India
European Directive Information
The EC declaration of conformity can be found on page 17. The most recent revision can be
found at www.emersonprocess.com.
Ordinary Location Certification for Factory Mutual
As standard, the transmitter has been examined and tested to determine that the design
meets basic electrical, mechanical, and fire protection requirements by FM, a nationally
recognized testing laboratory (NRTL) as accredited by the Federal Occupational Safety and
Health Administration (OSHA).
Hazardous Locations Certifications
North American Certifications
FM Approvals
E5 Explosion-Proof for Class I, Division 1, Groups B, C, and D. Dust-Ignition-Proof for
Class II, Division 1, Groups E, F, and G. Dust-Ignition-Proof for Class III, Division 1.
T5 (Ta = 85 °C), Factory Sealed, Enclosure Type 4X
I5 Intrinsically Safe for use in Class I, Division 1, Groups A, B, C, and D; Class II, Division
1, Groups E, F, and G; Class III, Division 1 when connected per Rosemount drawing
03031-1019; Non-incendive for Class I, Division 2, Groups A, B, C, and D.
Temperature Code: T4 (Ta = 60 °C)
Enclosure Type 4X
For input parameters see control drawing 03031-1019.
4774RevDA.fm Page 12 Thursday, April 22, 2010 10:26 AM