Honeywell ST 800 - Figure 6 - Inline Model Mounted to an Optional Bracket; Figure 7 - Rotating the Electronics Housing

Page 10 ST 800 SmartLine Pressure Transmitters User’s Manual Revision 10
Figure 6 – Inline Model Mounted to an Optional Bracket
3. Loosen the set screw on the outside neck of the Transmitter one (1) full turn.
4. Rotate the Electronics housing a maximum of 180
o
left or right from the center to the position
you require, and tighten the set screw 8.9 to 9.7 pound-inches (1.40 to 1.68 Newton meters),
using a 4mm metric socket head wrench. See the following example and Figure 7.
EXAMPLE: Rotating the Electronics Housing
Figure 7 – Rotating the Electronics Housing
The mounting position of absolute pressure models STA822, STA82L, or a draft range
model STD810 is critical as the Transmitter spans become smaller.
A maximum zero shift of 2.5 mmHg for an Absolute Transmitter or 1.5 inches of water
(inH
2
O) for a Draft Range Transmitter can result from a mounting position that is rotated
90
o
from the vertical. A typical zero-shift of 0.12 mmHg or 0.20 inH
2
O can occur for a five
(5)-degree rotation from the vertical.