Vertical Meter Installation
When installing the meter in a vertical position, make sure that no trap forms in the downstream tap such that gas is trapped
in a liquid or liquid is trapped in a gas
When measuring dry, non-condensing gases, where there is absolutely no risk for liquid being present, extend the piping
from the downstream pressure tap of the cone meter horizontally and then angle it upward to connect to the manifold block
Mount the manifold block horizontally Slope the tubing from the upstream tap of the cone meter 1 in /ft to the same level as
the downstream tap piping to connect to the manifold (see
IF THERE IS ANY LIQUID PRESENT IN THE GAS, DO NOT USE THE PIPING ARRANGEMENT SHOWN IN
. THE "U”
CONFIGURATION COULD TRAP LIQUID IN THE CONE, CHANGING THE DOWNSTREAM PRESSURE.
Transmitter Calibration
Calibrate transmitters (differential pressure and/or multi-variable) according to the manufacturer’s recommendations,
appropriate national or company standards and contractually agreed methodology Consider the process conditions in which
the Gemini Cone meter and transmitter are installed and operated
Front View
Side View
3-Valve Manifold
DP Transmitter
or
Direct Read Gage
HI
LO
Fl
ow
3-Valve Manifold
HI
LO
Fl
ow
DP Transmitter
or
Direct Read Gage
Figure 7: Typical vertical installation for gases
Meter Installation for Gas Service
Page 16
June 2018
DPM-UM-00206-EN-03
