Honeywell ST 800 - 3.4.4 Mounting Transmitters with Small Pressure Spans

Revision 10 ST 800 SmartLine Pressure Transmitters User’s Manual Page 11
3.4.4 Mounting Transmitters with Small Absolute or Differential Pressure
Spans
To minimize positional effects on calibration (zero shift), take the appropriate mounting
precautions for the respective Transmitter model. For a model STA822 or STA82L, ensure
that the Transmitter is vertical when mounting it. You do this by leveling the Transmitter
side-to-side and front-to-back. Figure 8 shows how to level a Transmitter using a spirit
level.
Figure 8 – Using a Spirit Balance to Level a Transmitter