Siemens SITRANS P320 Compact Operating Instructions
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Siemens SITRANS P320 Compact Operating Instructions

Siemens SITRANS P320 Compact Operating Instructions

Pressure transmitter
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SITRANS P
Pressure transmitter
SITRANS P320/P420
Compact Operating Instructions
7MF03.0 (SITRANS P320 with 4 ... 20 mA/HART)
7MF03.1 (SITRANS P320 with PROFIBUS PA)
7MF03.2 (SITRANS P320 with FOUNDATION Fieldbus)
7MF04.0 (SITRANS P420 with 4 ... 20 mA/HART)
7MF04.1 (SITRANS P420 with PROFIBUS PA)
7MF04.2 (SITRANS P420 with FOUNDATION Fieldbus)
09/2021
A5E38874562-AD
Getting started
Introduction
Safety notes
Installing/mounting
Connecting
Commissioning
Service and maintenance
Technical data
Product documentation and
support
Sealing plug / thread
adapter
1
2
3
4
5
6
7
8
A
B

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Summary of Contents for Siemens SITRANS P320

  • Page 1 Product documentation and support Sealing plug / thread adapter 7MF03.0 (SITRANS P320 with 4 ... 20 mA/HART) 7MF03.1 (SITRANS P320 with PROFIBUS PA) 7MF03.2 (SITRANS P320 with FOUNDATION Fieldbus) 7MF04.0 (SITRANS P420 with 4 ... 20 mA/HART) 7MF04.1 (SITRANS P420 with PROFIBUS PA) 7MF04.2 (SITRANS P420 with FOUNDATION Fieldbus)
  • Page 2 Note the following: WARNING Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems.

  • Page 3: Table Of Contents

    Securing the device with mounting bracket ................ 29 Installation (level) ......................31 4.4.1 Mounting on the container ....................32 Removing .......................... 35 Connecting ............................37 Basic safety instructions ..................... 37 Connecting the device ....................... 40 5.2.1 Opening the device......................40 SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 4 Operating conditions ......................72 Vibration resistance ......................77 Construction........................78 Torques ..........................82 Display, keys and auxiliary power ..................83 Certificates and approvals....................83 Product documentation and support ....................91 Product documentation ..................... 91 SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 5 Sealing plug / thread adapter ......................93 Intended use of accessory part ................... 93 Safety instructions for accessory part ................. 93 Technical specifications of accessory part ................94 Dimensional drawings for accessory part................95 Index ..............................97 SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 6 Table of contents SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 7: Getting Started

    4. If you want to change the factory settings, configure the device using the local or the remote operation. – Read the operating instructions for information on this. 5. Lock the device. – Read the operating instructions for information on this. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 8 Getting started SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 9: Introduction

    The instructions are aimed at persons who install and commission the device. To realize optimum performance from the device, read the complete operating instructions. Scope of validity of this document Variant SITRANS P320 SITRANS P420 Gauge pressure 7MF030. 7MF040.

  • Page 10: Document History

    6 kV) • New variant of the device with PROFIBUS PA. 09/2018 • Section Sealing plug / thread adapter (Page 93) added. • Technical specifications updated 06/2018 First edition SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 11: Product Compatibility

    FC475 V3.9 or higher Nameplate layout Nameplate with general information The nameplate with the article number and other important information, such as design details and technical data, is located on the cover over the buttons. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 12 Note operating instructions, certificates and ap‐ Serial number provals ⑥ ⑫ Protection class Order supplement (order code) Nameplate with approval information The nameplate with approval information is located on the front of the enclosure. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 13 Wetted materials: Diaphragm duplex, 1.4462 ④ ⑩ Serial number QR code for mobile website with device-specific informa‐ tion ⑤ ⑪ Operating temperature Assembly and manufacturing location ⑥ Vacuum service: no, oxygen ≤ 60 °C; ≤ 50 bar SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 14: Checking The Consignment

    Use of product versions that are no longer supported, and failure to apply latest updates may increase customer’s exposure to cyber threats. To stay informed about product updates, subscribe to the Siemens Industrial Security RSS Feed under https://www.siemens.com/industrialsecurity.

  • Page 15: Transportation And Storage

    The content reflects the technical status at the time of publishing. Siemens reserves the right to make technical changes in the course of further development.
  • Page 16 Introduction 2.10 Notes on warranty SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 17: Safety Notes

    These include, for example: • National Electrical Code (NEC - NFPA 70) (USA) • Canadian Electrical Code (CEC) (Canada) Further provisions for hazardous area applications are for example: • IEC 60079-14 (international) • EN 60079-14 (EU) SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 18: Conformity With European Directives

    Risk to personnel, system and environment can result from modifications to the device, particularly in hazardous areas. • Only carry out modifications that are described in the instructions for the device. Failure to observe this requirement cancels the manufacturer's warranty and the product approvals. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 19: Requirements For Special Applications

    Note Operation under special ambient conditions We highly recommend that you contact your Siemens representative or our application department before you operate the device under special ambient conditions as can be encountered in nuclear power plants or when the device is used for research and development purposes.
  • Page 20 "Not Ex d Not SIL". • Do not swap device parts unless the manufacturer specifically ensures compatibility of these parts. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 21 Zone 0, pressure transmitter explosion protection depends on the tightness of the diaphragm. • Ensure that the material used for the diaphragm is suitable for the process medium. Refer to the information in the section "Technical data (Page 63)". SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 22 Safety notes 3.3 Use in hazardous areas SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 23: Installing/Mounting

    Ensure that maximum permissible operating pressure of the device is not exceeded. Refer to the information on the nameplate and/or in Technical data (Page 63). SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 24 Using safety extra-low voltage for devices of the protection type "db", "ec", "tb" or "tc" Risk of explosion in hazardous areas. • Disconnect the non-intrinsically safe circuit safely from ground, e.g. using an SELV circuit. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 25 • Prevent severe external stresses and loads from acting on the device. Note Material compatibility Siemens can provide you with support concerning selection of sensor components wetted by process media. However, you are responsible for the selection of components. Siemens accepts no liability for faults or failures resulting from incompatible materials.

  • Page 26: Installation Location Requirements

    • Install the device so that no or almost no vibrations occur in the direction of the diaphragms. • To avoid measuring values that fluctuate strongly, use the damping function. For information on vibration resistance, refer to the marine approval certificate. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 27: Proper Mounting

    • For remote seal mounting, observe the notes in the section "Mounting with remote seal" of the operating instructions. Mounting location Verify that the mounting location meets the following conditions: • Accessible • Close to the measuring point SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 28 Use an appropriate tool (e.g. open-ended wrench with width across flats 36). Otherwise, the measuring cell may be damaged. 3. Turn only on the key area above the process connection. Caution: If you turn the pressure transmitter on the housing, the measuring cell may be damaged. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 29: Securing The Device With Mounting Bracket

    Mounting with differential pressure lines Differential pressure lines can break if they are not mounted correctly. • Install the device so that the pressure transmitter and the differential pressure lines are not subject to different vibrations. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 30 When securing the mounting bracket, observe the torques in the section Torques (Page 82). Example 1: Pipe mounting of pressure transmitter (gauge pressure series) Example 2: Pipe mounting of pressure transmitter (differential pressure series) The following positions are possible: SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 31: Installation (Level)

    Ensure that the seal is centrally positioned and that it does not restrict the movement of the flange's seal diaphragm in any way. Otherwise, the seal of the process connection is not guaranteed to be tight. 2. Screw on the pressure transmitter's flange. 3. Observe the installation position. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 32: Mounting On The Container

    A line is not required when taking measurements in an open container because the low pressure side is connected to the atmosphere. Ensure that no dirt enters the open connection ports. To this end, use a threaded plug with vent valve 7MF4997-1CP, for example. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 33 The process connection on the low pressure side is a female thread -18 NPT or an oval flange. Lay the line for the low pressure using a seamless steel tube 12 mm x 1.5 mm. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 34 (mostly with the condensate of the measured medium) and install a condensate pot. Lock the device using the 2-way valve manifold 7MF9017-..A. To compensate the liquid column on the low pressure side, reset the zero point. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 35: Removing

    • If the device contains hazardous media, it must be emptied prior to disassembly. Make sure that no environmentally hazardous media are released. • Secure the remaining connections so that no damage can result if the process is started unintentionally. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 36 Installing/mounting 4.5 Removing SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 37: Connecting

    Observe national regulations and the requirements stated in the relevant approvals. WARNING Unprotected cable ends Risk of explosion through unprotected cable ends in hazardous areas. • Protect unused cable ends in accordance with IEC/EN 60079-14. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 38 2. Connect the device according to the selected type of protection. 3. When operating with non-intrinsically safe power supplies, make the intrinsically safe types of protection permanently unrecognizable as in the nameplate example. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 39 You can use this device in industrial environments, households and small businesses. For metal housings there is an increased electromagnetic compatibility compared to high- frequency radiation. This protection can be increased by grounding the housing, see Technical data (Page 63). SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 40: Connecting The Device

    Cover of the electrical cable compartment. Figure 5-2 Rear view of pressure transmitter ① 1. Use a 3 mm Allen key to loosen the safety catch ② 2. Unscrew the cover of the electrical cable compartment SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 41: Connecting The Device

    Process connection ③ ⑧ Cable gland Protective conductor connection/ equipotential bonding terminal ④ ⑨ Connecting terminals Ground terminal ⑤ ⑩ Test connector for DC measuring device (available Fieldbus for HART) Figure 5-3 Example SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 42: Closing The Device

    2. Secure each cover with the cover catch by removing the screw. For the aluminum enclosure, observe the torque (Page 82). ① 3. Close the cover over the buttons 4. Tighten the screw for the cover over the buttons. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 43: Switching On The Supply Voltage

    2. Switch on the supply voltage. – Product name and firmware version appear briefly on the display. – The measured values are shown on the local display or via remote operation (e.g. SIMATIC PDM). SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 44 Connecting 5.3 Switching on the supply voltage SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 45: Commissioning

    – Prevent renewed commissioning. WARNING Loss of explosion protection Risk of explosion in hazardous areas if the device is open or not properly closed. • Close the device as described in Technical data (Page 63). SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 46: Commissioning The Device

    • Basic safety notes: Installing/mounting (Page 23) • Basic safety notes: Connecting (Page 37) • Basic safety notes: Commissioning (Page 45) Read the entire device manual to achieve the optimum performance of the device. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 47: Application Examples

    – Read the operating instructions for information on this. Application examples 6.3.1 Gauge pressure, absolute pressure from differential pressure series, and absolute pressure from gauge pressure series 6.3.1.1 Commissioning in gaseous environments Requirement All valves are closed. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 48 3. Ensure that the lower range value corresponds to the desired value. Otherwise, correct the value. ④ 4. Close the shut-off valve for the test connection ⑥ 5. Open the shut-off valve at the pressure tapping point. ③ 6. Open the shut-off valve for the process SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 49: Commissioning With Steam Or Liquid

    3. Ensure that the lower range value corresponds to the desired value. Otherwise, correct the value. ④ 4. Close the shut-off valve for the test connection ⑥ 5. Open the shut-off valve at the pressure tapping point. ③ 6. Open the shut-off valve for the process SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 50: Differential Pressure And Flow Rate

    2. Open the stabilizing valve ③ ④ 3. Open the differential pressure valve ( 4. Check and, if necessary, correct the zero point when the lower range value is 0 bar (4 mA). SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 51 Commissioning 6.3 Application examples ② 5. Close the stabilizing valve ③ ④ 6. Open the other differential pressure valve ( SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 52: Commissioning For Liquids

    If toxic process media are measured with this device, toxic liquids can escape when the device is vented. • Before venting, make sure there is no liquid in the device or take the necessary safety precautions. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 53 6. Close the vent valve (sealing plug with vent valve). 7. Partially open the vent valve (sealing plug with vent valve) on the negative side of the pressure transmitter until liquid escapes without bubbles. ③ 8. Close the differential pressure valve SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 54: Commissioning With Vapor

    You can briefly open the drain valves to clean the line. Hot vapor can escape in the process. ⑦ • Only open the drain valves briefly, and close them again before vapor escapes. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 55 ① 9. Close the vent valve with blanking plug on the negative side 10.Close the differential pressure valve. ③ 11.Open the differential pressure valve by half a revolution. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 56 13.Close the stabilizing valve ③ ④ 14.Fully open the differential pressure valves Cleaning process cable ⑦ 1. To clean the line, briefly open the drain valves ⑦ 2. Close the drain valve before vapor escapes. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 57: Service And Maintenance

    • Make sure that only authorized personnel may cancel the button locking of devices for safety-related applications. NOTICE Penetration of moisture into the device Damage to device. • Make sure when carrying out cleaning and maintenance work that no moisture penetrates the inside of the device. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 58: Cleaning

    WARNING Impermissible repair of explosion protected devices Risk of explosion in hazardous areas • Repair must be carried out by Siemens authorized personnel only. CAUTION Hot surfaces Risk of burns during maintenance work on parts having surface temperatures exceeding 70 °C (158 °F).

  • Page 59: Defining The Maintenance Interval

    • As long as the device is under pressure, do not loosen process connections and do not remove any parts that are pressurized. • Before opening or removing the device ensure that process media cannot be released. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 60: Checking The Seals

    Incorrect measured values will be displayed. Changing the seals in a process flange of a differential pressure measuring cell can alter the lower range value. • Changing seals in devices with differential pressure measuring cells may only be carried out by personnel authorized by Siemens. Note Using the wrong seals Using the wrong seals with flush-mounted process connections can cause measuring errors and/ or damage the diaphragm.

  • Page 61: Disposal

    Service and maintenance 7.5 Disposal See also Decontamination declaration (http://www.siemens.com/sc/declarationofdecontamination) Return document (http://www.siemens.com/processinstrumentation/returngoodsnote) Disposal Devices described in this manual should be recycled. They may not be dis‐ posed of in the municipal waste disposal services according to the Directive 2012/19/EC on waste electronic and electrical equipment (WEEE).
  • Page 62 Service and maintenance 7.5 Disposal SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 63: Technical Data

    80 MPa 80 MPa 102 ... 10153 psi 11603 psi 11603 psi Gauge pressure measuring limits Low measuring limit 30 mbar a/3 kPa a/0.44 psi a • Measuring cell with silicone oil filling SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 64: Gauge Pressure With Front-Flush Diaphragm

    Gauge pressure measuring limits with front-flush dia‐ phragm Lower measuring limit • Measuring cell with silicone oil filling 100 mbar a/10 kPa a/1.45 psi a 100 mbar a/10 kPa a/1.45 psi a • Measuring cell with inert oil SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 65: Gauge Pressure From The Differential Pressure Series

    Therefore, ensure that the configured turndown is no higher than 5:1. Gauge pressure measuring limits from differential pres‐ sure series Lower measuring limit • Measuring cell with silicone oil filling 30 mbar a/3 kPa a/0.44 psi a SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 66: Absolute Pressure From The Gauge Pressure Series

    Therefore, ensure that the configured turndown is no higher than 5:1. Absolute pressure measuring limits from gauge pressure series Lower measuring limit 0 mbar a/kPa a/psi a • Measuring cell with silicone oil filling SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 67: Absolute Pressure With Front-Flush Diaphragm

    Absolute pressure measuring limits with front-flush dia‐ phragm Lower measuring limit 0 mbar a/kPa a/psi a • Measuring cell with silicone oil filling Upper measuring limit 100% of max. range Lower range value Between the measuring limits (continuously adjustable) SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 68: Absolute Pressure From The Differential Pressure Series

    435 psi)) Upper measuring limit 100% of max. range (for oxygen measurement: max. 100 bar/10 MPa/ 1450 psi and 60 °C ambient temperature/medium temperature) Lower range value Between the measuring limits (continuously adjustable) SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 69: Differential Pressure And Flow

    24 MPa 4.35 … 435 psi 2320 psi 3480 psi 8 … 160 bar 160 bar 240 bar 0.8 ... 16 MPa 16 MPa 24 MPa 116 … 2320 psi 2320 psi 3480 psi SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 70 -100% of maximum measuring range or 100 mbar a /10 kPa a / • Measuring cell < ϑ ≤ 100 °C (-14 °F < ϑ ≤ +212 °F) 14.5 psi a. with FDA-com‐ pliant oil SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 71: Level

    -100% of maximum measuring range or 100 mbar a /10 kPa a /1.45 psi a pliant oil Upper measuring limit 100% of max. range Lower range value Between the measuring limits (continuously adjustable) SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 72: Operating Conditions

    6 kV Enclosure with mounted HAN device IP65 plug Electromagnetic compatibili‐ Interference emission and In accordance with EN 61326 and interference immunity NAMUR NE 21 Process medium conditions • Process temperature SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 73 -20 … +80 °C (-4 … +176 °F) -50 … +85 °C (-58 … +185 °F) • Storage temperature (for FDA-compliant oil: -20 ... + 85 °C (-4 ... +185 °F)) Climate class in accordance 4K26 with IEC 60721-3-4 SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 74 Measuring cell with inert -40 … +85 °C (-40 … +185 °F) Measuring cell with FDA- -10 … +85 °C (14 … 185 °F) compliant oil Display -20 … +80 °C (-4 … +185 °F) SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 75 Specified by the flange • Installation instruction Ambient conditions • Ambient temperature Note Observe the allocation of the max. permissible operating temperature to the max. permissible operating pressure of the relevant flange connection. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 76 Plus side: See mounting flange cone oil filling • Minus side: -40 … +100 °C (-40 … +212 °F) Only approved for non-Ex devices and devices with intrinsic safety "Ex i" according to ATEX and IECEx. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 77: Vibration Resistance

    5 ... 7 Hz at 20 mm IEC 60068-2-6 9 ... 100 Hz at 20 m/s² 10 octave/min 1 cycle/axis Continuous shocks (half-sine) 300 m/s² IEC 60068-2-27 11 ms 6 shocks/axis 2) With mounting bracket SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 78: Construction

    Construction for gauge pressure and absolute pressure (from the gauge pressure series) Weight Approx. 1.8 kg (3.9 lb) with aluminum enclosure Approx. 3.8 kg (8.3 lb) with stainless steel enclosure Material • Wetted parts materials SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 79 1.4409/CF-3M • Standard: Powder coating with polyurethane D20 option: 2 coats: Coat 1: epoxy-based; coat 2: Polyurethane • Stainless steel nameplate (1.4404/316L) Mounting bracket Steel, galvanized, stainless steel 1.4301/304, stainless steel 1.4404/316L SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 80 Electrical connection Screw terminals Cable inlet using the following screwed joints: • M20 x 1.5 • ½-14 NPT • Han 7D/Han 8D connector • M12 connector Han 8D is identical to Han 8U. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 81 Pressure cap screws Stainless steel ISO 3506-1 A4-70 Measuring cell filling Silicone oil Silicon oil or a different design • Mounting flange fill fluid Process connection Flange as per EN and ASME • Plus side SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 82: Torques

    • Tightening torque for aluminum enclosure 3.5 Nm (2.5 ft lb) • Tightening torque for stainless steel enclosure Screws for safety catch 0.88 Nm (0.65 ft lb) • Tightening torque for aluminum enclosure SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 83: Display, Keys And Auxiliary Power

    700 V DC according to IEC 60079-11. For further information, see the associated certificate for explosion protection. Certificates and approvals Explosion protection in accordance with HART PROFIBUS PA/FOUNDATION Fieldbus ATEX Certificate BVS 18 ATEX E049X • Intrinsic safety "i" SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 84 To a circuit with the operating values: To a circuit with the operating values: = 10.5 … 45 V DC, 4 ... 20 mA = 9 … 24 V DC • Dust explosion protection for Zone 20 SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 85 -40 … +70 °C (-40 … +158 °F) temperature class T6 Connection "ec" To a circuit with the operating values: To a circuit with the operating values: = 10.5 to 45 V, 4 ... 20 mA = 9 … 24 V DC SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 86 Technical data 8.7 Certificates and approvals Explosion protection in accord‐ HART PROFIBUS PA/FOUNDATION Fieldbus ance with FM (USA) FM19US0155X The permissible operating values are specified in the certificate (http://www.siemens.com/ processinstrumentation/certificates). SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 87 CL I, ZN 2, AEx ec IIC T6/T4 Gc CL II, DIV 2, Gr. E, F, G; CL III (NI); T4 CL II, DIV 2, Gr. E, F, G; CL III (NI); T4 SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 88 Class I, DIV 1 Gr. A-D (Explosion proof (XP)) Class I, DIV 1 Gr. A-D (Intrinsically Safe (IS)) Class II, DIV 2, Gr. E-G; Class III Class I, DIV 2, Gr. A-D (NI) SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 89 The permissible operating values and markings can be found in the certificate (http://www.siemens.com/processinstrumentation/ GYJ19.1058X certificates). Explosion protection in accordance with INMETRO (Bra‐ sil) BRA-18-GE-0035X Explosion protection in accordance with EAC (Russia) TC RU C-DE.AA87.B.01202 Explosion protection in accordance with IECEx IECEx BVS 18.0038X SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 90 Technical data 8.7 Certificates and approvals SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 91: Product Documentation And Support

    – "Download as html5, only PC": Open or save the manual in the HTML5 view on your PC You can also find manuals with the Mobile app at Industry Online Support (https:// support.industry.siemens.com/cs/ww/de/sc/2067). Download the app to your mobile device and scan the device QR code. Product documentation by serial number Using the PIA Life Cycle Portal, you can access the serial number-specific product information including technical specifications, spare parts, calibration data, or factory certificates.

  • Page 92: Technical Support

    Additional information on our technical support can be found at Technical Support (http:// www.siemens.com/automation/csi/service). Service & support on the Internet In addition to our technical support, Siemens offers comprehensive online services at Service & Support (http://www.siemens.com/automation/serviceandsupport). Contact If you have further questions about the device, contact your local Siemens representative at Personal Contact (http://www.automation.siemens.com/partner).

  • Page 93: Sealing Plug / Thread Adapter

    Aggressive media in the environment can damage the sealing ring. Type of protection and device protection may no longer be guaranteed. • Make sure that the sealing material is suitable for the area of use. SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 94: Technical Specifications Of Accessory Part

    For thread size M25 x 1.5 95 Nm • For thread size ½-14 NPT Width A/F for thread size M20 x 1.5 Width A/F for thread size M25 x 1.5 Key size for thread size ½-14 NPT SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 95: Dimensional Drawings For Accessory Part

    Sealing plug / thread adapter B.4 Dimensional drawings for accessory part Dimensional drawings for accessory part Sealing plug Ex d, M25 x 1.5, dimensions in mm Sealing plug Ex d, M20 x 1.5, dimensions in mm SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 96 Sealing ring: Use for dust protection "Ex t" type of protection. Thread adapter Ex d, M25 x 1.5 on M20 x 1.5 and M25 x 1.5 on ½-14 NPT, dimensions in mm Sealing plug Ex d ½ -14 NPT SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

  • Page 97: Index

    Laws and directives, 17 Qualified personnel, 19 Hotline, (Refer to Support request) Scope of delivery, 14 Sealing plug Technical specifications, 94 Serial number, 13 Insulation, 29 Service, 92 internal overvoltage protection up to 6 kV, 83 SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...
  • Page 98 Stabilizing valve, 50, 51, 53, 55 Support, 92 Support request, 92 Technical support, 92 partner, 92 personal contact, 92 Test certificates, 17 Threaded adapter Technical specifications, 94 Torque, 94 Torques, 82 Vent valve, 53, 55 Warranty, 15 SITRANS P320/P420 Compact Operating Instructions, 09/2021, A5E38874562-AD...

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