Mechanical installation
Page 6 Installation guide 854 ATG
Mechanical installation
Note:
The entire installation procedure shall be in accordance with national, local and company
regulations.
Preparation for transportation of the gauge
Caution
Do not transport the instrument with the motor unlocked. Refer to figure 1 for motor locking.
Drum should be transported in original protective box. Drum and displacer shall only be installed by
a qualified commissioning engineer.
Process connection
The 854 ATG can be ordered with race face or flat face flange. Select gasket that is suitable for
flange type, maximum pressure and product to be stored. Mount instrument flange horizontally.
Warning
Verify that tank or drum compartment is depressurized before opening
the tank or drum compartment cover of 854 ATG.
The 854 ATG can be adapted to various process connection flanges via adapters/calibration
chambers as specified in Appendix B. Verify that maximum working pressure of adapter/calibration
chamber complies with pressure in your tank.
Note:
When using 854 ATG on pressurized tank, it is recommended to install a suitable valve
between tank and 854 ATG to isolate the instrument from the process when required.
The valve shall have an opening large enough to feed through the displacer.