Process Level Technology, Ltd.
MAG-GAGE
®
OPS-001 Revision 6
Page
14
of
30
December 17, 2018
Magnetic Level Gages
Installation, Operation and Maintenance Instructions
Section 2.5.0. - Removal from Service
2.5.1. INTRODUCTION
To remove the gage from service, the next steps should be followed to prevent danger to personnel and damage
to the gage when the vessel is pressurized.
2.5.2.
PROCEDURES
1.
Close the bottom process connection valve first to prevent further process influx to the gage.
2.
Completely close the top process connection valve to isolate the gage from the process conditions.
3.
Attach proper vapor collection equipment to the gage vent connection if required.
4.
Open the vent valve slowly to relieve gage pressure and allow ambient air influx.
5.
Attach the proper liquid collection equipment to the drain connection is required.
6.
Open the drain valve slowly to remove remaining gage liquid.
7.
CAUTION
: Never use the vent or drain on a gage as a pressure relief mechanism for the process system.
Doing so may permanently damage parts of the gage as well as inducing a safety hazard.
8.
DO NOT
remove float from chamber before ambient temperature is obtained. Once ambient
temperature is obtained, wait an
ADDITIONAL
TWO HOURS
before removing float from chamber
for safety purposes.
