Siemens SITRANS P320

Siemens SITRANS P320 Specification

Theory
Pressure Measurement, Piezoresistive sensor

Working Temperature
-40C to +85C (ambient)

Control System
HART 7 communication, optional PROFIBUS PA

Inlet/Outlet
12 or 14 NPT, G 12 threaded connection

Features
Remote display, push-button operation, diagnostics, 5-digit display, NAMUR NE43 support

Mounting Type
2 pipe or wall mounting

Noise Level
<40 dB(A) nominal (electronics only)

Discharge Pressure
Up to 420 bar (6,000 psi)

Voltage
10.8-45 V DC (max. 56 V DC)

Material
Stainless steel 316L, Aluminum housing

Structure
Compact transmitter

Power
<1.2 W typ.

Standard
SIL2/3, ATEX, IECEx, FM, CSA certified

Pressure
Gauge, absolute and differential pressure up to 6,000 psi

Usage
Industrial process pressure and differential pressure measurement

Application
Oil & gas, Chemicals, Energy, Water and Wastewater, General industry

Seals Type
O-ring (EPDM standard), others on request

Electrical Connection
M20x1.5, 12" NPT, or 12" G conduit entry

Long Term Stability
0.2% of URL over 5 years

Response Time
105 ms

Zero/Span Adjustment
Via push button or HART

Weight
1.8 kg typical

Output Signal
4-20 mA, with superimposed HART digital signal

Display
LCD, 5-digit, backlit

Power Supply
2-wire system

Explosion Protection
Ex ia, Ex d options available

Ingress Protection
IP67/NEMA 4X enclosure

Turn Down Ratio
Up to 100:1

Sensor Accuracy
0.065% of calibrated span

Siemens SITRANS P320 Trade Information

Minimum Order Quantity
1 Unit

Delivery Time
1 Week

About Siemens SITRANS P320

The Siemens SITRANS P320 is a digital pressure transmitter designed for gauge and differential pressure measurement, featuring high accuracy, extensive diagnostics (NAMUR NE107), and "Remote Safety Handling" for SIL commissioning from a control room. It is suitable for harsh industrial conditions with a robust design, suitable for liquids, gases, and vapors.

Remote Safety Handling: The first transmitter to offer remote SIL verification, reducing maintenance costs and eliminating on-site, manual safety checks.
Robust Design: Suitable for harsh environments, constructed with materials like stainless steel, Hastelloy, or tantalum to withstand extreme chemical and mechanical loads.
High Flexibility: Wide temperature range (-40 C to +100 C) and a broad, adjustable measuring span from 0.01 bar to 700 bar (0.15 psi to 10153 psi).
Easy Operation: User-friendly interface with 4 local input buttons or via HART protocol using an integrated Quick Start wizard.
Applications: Ideal for measuring pressure, absolute pressure, and differential pressure in chemical, oil, gas, and power plants.
Compliance: Meets various industry certifications such as CE, RCM, EAC, FM, CSA, and KCC.

Advanced Pressure Measurement for Industry

With its compact transmitter design and piezoresistive sensor technology, the SITRANS P320 offers precise and reliable pressure measurement for process control. Its rapid 105 ms response time and turn-down ratio up to 100:1 enhance versatility for complex applications, while the robust stainless steel and aluminum housing provides durability in harsh environments. The backlit display simplifies data reading even under low-light conditions.

Flexible Integration and User-Friendly Operation

The SITRANS P320 supports multiple electrical connections and mounting types, making it easy to integrate into existing systems. Zero and span adjustments can be done either via push buttons or remotely using HART communication, allowing fast calibration. Its diagnostics, NAMUR NE43 support, and remote display capability ensure efficient monitoring and maintenance, minimizing downtime.

FAQ's of Siemens SITRANS P320:

Q: How is the SITRANS P320 pressure transmitter installed and configured?

A: The SITRANS P320 can be mounted on a 2-pipe or wall bracket. Electrical connections are available in M20x1.5, 1/2" NPT, or 1/2" G threaded conduit entries. Zero and span adjustments can be performed with onboard push buttons or via the HART interface, enabling quick commissioning directly at the installation site or from a control room.

Q: What are the main benefits of the P320 for industrial applications?

A: The SITRANS P320 offers high accuracy (0.065% of span), long-term stability, fast response time (105 ms), and extensive certifications for safety (SIL2/3, ATEX, IECEx, FM, CSA). Its rugged construction, advanced diagnostics, and compatibility with global standards provide reliable operation and reduce maintenance costs across oil & gas, chemicals, water, and energy sectors.

Q: When should the display backlight and remote display options be used?

A: The backlit LCD display is useful for reading process values in dimly lit or enclosed environments. The remote display option is ideal when the transmitter is mounted in hard-to-reach or hazardous locations, allowing operators to view readings and perform diagnostics safely from a convenient location.

Q: Where can the SITRANS P320 be applied within a facility?

A: The P320 is suitable for monitoring and controlling process pressure in pipelines, tanks, reactors, and other industrial equipment. Its robust IP67/NEMA 4X rating and explosion-proof options make it suitable for both indoor and outdoor use, including hazardous or wet environments.

Q: What is the procedure for performing zero and span adjustments?

A: Zero and span settings can be adjusted either onsite using the device's push buttons beneath the display or remotely using a HART communicator. This process ensures the transmitter accurately reflects the actual process pressure, contributing to precise measurement and system safety.

Q: How does the SITRANS P320 ensure measurement reliability over time?

A: With a long-term stability specification of 0.2% of URL over 5 years and durable stainless steel construction, the SITRANS P320 delivers consistent, accurate readings even in challenging conditions, reducing recalibration needs and ensuring dependable operation throughout its service life.