Installation Yamatake Corporation
4-10 ST3000 Smart Transmitter Series 900 Electronic Differential Pressure/Pressure Transmitter
Table 4-3 Process Connections
Transmitter type Process Connection
Differential Pressure Process heads with 1/4 inch NPT internal thread
connection.
Flange adapters and manifolds with 1/2 inch
internal thread connections are optional.
Gauge Pressure Process head with 1/2 inch NPT internal thread
connection.
Process heads with 1/4 inch NPT internal thread
connection. (STG90)
Flange adapters and manifolds with 1/2 inch
internal thread connections are optional
(STG90)
Absolute Pressure Process heads with 1/2 inch NPT internal thread
connection (STA923, 940)
Flange Mounted Liquid
Level
1.5. 2 or 3 inches flange with flush or 2, 3 or 4
inches extended diaphragm on high pressure
side*.
Reference side has standard differential pressure
process head.
Remote Diaphragm Seals See Model Selection Guide for description of
available Flanged, Button-diaphragm (G1·1/2),
and Wafer type process connections.