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Quick Start Guide
Step 6: Trim the transmitter
Transmitters are shipped fully calibrated per request or by the factory default of
full scale.
Use the ROCLINK or TechView components of OpenEnterprise Field Tools to
communicate with and perform maintenance on the Rosemount 4088
MultiVariable Transmitter.
Zero trim
A zero trim is a single-point adjustment used for compensating mounting
position and line pressure effects on static and differential pressure sensors.
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 allow up to 95% of URL zero error to be trimmed through a
lower SP trim procedure.
If zero offset is less than 5% of URL, follow the user interface software instructions
below.
Performing a zero trim using OpenEnterprise Field Tools
See the product-specific ROCLINK manual (ROCLINK Configuration Software User
Manual [for ROC800-Series], part D301250X012, or the ROCLINK Configuration
Software User Manual [for FloBoss 107], part D301249X012) or the TechView
User's Guide (part D301430X012) for information.
16
November 2014
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