Siemens P technical specifications Series for gage and absolute pressure, Overview

© Siemens AG 2008

SITRANS P measuring instruments for pressure

Transmitters for gage, absolute and differential pressure

Z series for gage and absolute pressure

■Overview

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SITRANS P pressure transmitters, Z series for pressure and absolute pressure (7MF1564-...)

SITRANS P pressure transmitters, Z series (7MF1564-...), mea- sure the gage and absolute pressure as well as the level of liq- uids and gases.

■Benefits

•High measuring accuracy

•Sturdy stainless steel housing

•For aggressive and non-aggressive media

•For measuring the pressure of liquids, gases and vapor

•Temperature-compensated measuring cell

Measuring range ≥1 bar (≥14.5 psi)

Main components:

•Stainless steel housing with ceramic measuring cell and elec- tronics module. The temperature-compensated ceramic mea- suring cell has a thin-film strain gage which is mounted on a ceramic diaphragm. The ceramic diaphragm can also be used for aggressive media.

•Process connection made of stainless steel in diverse designs (see Selection and Ordering data)

•Electrical connection made using a plug to DIN 43650 with the cable inlet M16 x 1.5, ½-14 NPT or round plug connector M12.

The pressure transmitters with a nominal range ≥ 1 bar g

(≥ 14.5 psi g) are optionally available with or without explosion protection.

■Function

The pressure transmitter measures the gage and absolute pres- sure as well as the level of liquids and gases.

Mode of operation

U

const.

p U I I0, UB

SITRANS P pressure transmitters, Z series (7MF1564-...), functional dia- gram

•Compact design

■Application

The pressure transmitter of the Z series for gage pressure and absolute pressure (7MF1564-...) is used above all in the follow- ing industrial areas:

•Chemical industry

•Pharmaceutical industry

•Food industry

•Mechanical engineering

•Shipbuilding

•Water supply

■Design

The design of the pressure transmitter is dependent on the mea- suring range.

Measuring range <1 bar (<14.5 psi) Main components:

•Stainless steel housing with piezo-resistive silicon measuring cell (with stainless steel diaphragm, temperature-compen- sated) and electronics module

•Process connection made of stainless steel in diverse designs (see Selection and Ordering data)

•Electrical connection made using a plug to DIN 43650 with the cable inlet M16 x 1.5, ½-14 NPT or round plug connector M12.

The pressure transmitters with a nominal range < 1 bar g

(< 14.5 psi g) are optionally available with or without explosion protection.

The mode of operation of the pressure transmitter is dependent on the measuring range.

Measuring range <1 bar (<14.5 psi)

The silicon measuring cell of the pressure transmitter has a piezo-resistive bridge to which the operating pressure is trans- mitted through silicone oil and a stainless steel diaphragm.

The measuring cell output voltage is fed to an amplifier and con- verted into an output current 4 ... 20 mA. The output current is linearly proportional to the input pressure

Measuring range ≥1 bar (≥14.5 psi)

The thin-film measuring cell has a thin-film resistance bridge to which the operating pressure p is transmitted through a ceramic diaphragm.

The voltage output from the measuring cell is converted by an amplifier into an output current 4 ... 20 mA or an output voltage of 0 ... 10 V DC.

The output current and voltage are linearly proportional to the in- put pressure

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Siemens FI 01 · 2009