Siemens SITRANS P320 Pressure Transmitter Gauge pressure HART (4...20 mA) Measuring cell filling: Silicone oil Maximum measuring span: 16 bar (232 psi) Female thread 1/2-14 NPT Diaphragm: Stainless steel 316L/1.4404, measuring cell: Stainless steel 316L/1.4404; Sensor Differential pressure: process flange: Stainless steel 316/1.4408 Die-cast aluminum housing Dual chamber device no Ex 2 x 1/2-14 NPT With display (lid with glass window) General approval without Ex approval: World (CE, UKCA, RCM, CSA, EAC, FM, KCC) NSF61 (Drinking water) Mounting bracket, electrogalvanised steel.

Area of Application:

Depending on the variant, the pressure transmitter measures corrosive, non-corrosive and hazardous gases, vapors and liquids.

You can use the pressure transmitter for the following measuring tasks:
• Gauge pressure
• Absolute pressure
• Differential pressure

With the appropriate configuration and the necessary add-on parts (e.g. limiters and remote seals), you can also use the pressure transmitter for the following measuring tasks:
• Level
• Volume flow
• Mass flow
• Volume
• Customized characteristic curve

The output signal for all measuring tasks is a direct current of 4 to 20 mA or a process-based, digital signal (e.g. with PROFIBUS PA).

You can install the "intrinsically-safe" or "flameproof enclosure" version of the pressure transmitter in hazardous areas. The devices have a test certification and comply with the corresponding directives.

Gauge Pressure:

This version measures aggressive, non-aggressive and hazardous gases, vapors and liquids.

There are two series: a "differential pressure" series and a "gauge pressure" series. The "differential pressure" series is distinguished by a high overload capability.

Differential Pressure and Flow:

This version measures corrosive, non-corrosive and hazardous gases, vapors and liquids. You can use this version for the following measurement types:

•  Differential pressure, e.g. effective differential pressure


• Gauge pressure, suitable for small positive or negative pressure value


• Together with a primary element

Level:

This version with mounting flange measures the level of non-corrosive, corrosive and hazardous liquids in open and closed containers.

The nominal size of the mounting flange is DN 40 to DN 125 or 1 1/2" to 5".

The negative connection of the measuring cell is kept open when measuring the level of open containers. This measurement is referred to as "measurement against atmosphere". The negative connection is normally connected with the container when measuring the level of closed containers. This means the static pressure is present at both ends.

Wetted parts are made of various materials, depending on corrosion resistance requirements.

Absolute Pressure:

This version measures the absolute pressure of aggressive, non-aggressive and hazardous gases, vapors and liquids.

There are two series: a "differential pressure" series and a "gauge pressure" series. The "differential pressure" series is distinguished by a high overload capability.