Emerson Rosemount 3051HT Quick Start Manual page 15

July 2023
Bluetooth
You can find the Unique Identifier (UID) and key on the disposable
paper tag attached to:
• the device
• the terminal block cover
• and on the display unit
Figure 2-8: Bluetooth security information
2.5 Trim the transmitter
Devices are calibrated by the factory. Once installed, it is
recommended to perform a zero trim on gauge transmitter to
eliminate error due to mounting position or static pressure effects.
A zero trim can be performed using either a Field Communicator or
configuration buttons.
Note
When performing a zero trim, ensure no process pressure is applied
to device and all wet legs are filled to the correct level.
CAUTION
It is not recommended to zero an absolute transmitter, Rosemount
3051HTA Transmitter.
Procedure
Choose your trim procedure:
a) Analog zero trim – Sets the analog output to 4 mA.
•
•
Quick Start Guide
UID and key
®
Also referred to as a "rerange" it sets the Lower Range
Value (LRV) equal to the measured pressure.
The display and digital HART
Quick Start Guide
output remains unchanged.
®
15