Design; Application - Siemens SITRANS P Série Mode D'emploi

1

Design

The transmitter has a flush-mounted piezo-resistive sensor with stainless steel dia-
phragm.
The transmitter is equipped with an electronic circuit fitted together with the sensor
in a stainless steel housing. the cable also contains a strength cord and vent pipe.
The diaphragm is protected against external influences by a protective cap.
The sensor, electronic circuit and cable are sealed in a common housing of small
dimensions.
The transmitter is temperature-compensated for a wide temperature range.
2

Application

The 7MF1570 transmitter is used for hydrostatic measurement of liquid levels, e.g.
in water supply, ship installations, in the oil and gas industry etc. The transmitter mea-
sures the hydrostatic pressure (p = ρ * g * h, with ρ - density of the liquid,
g - acceleration due to gravity, h - height of the liquid column).
Figure 1
The chemical stability of sensor, housing, o-ring and connection cable with the ma-
terial should be monitored.
SITRANS P, MPS Series
A5E00136035-04
Transmitter 7MF1570, measuring the liquid level in open vessels
Operating Instructions
19