Siemens SITRANS P420 Smart Pressure Transmitters with HART (Accuracy 0.04% Span)
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Two wire, loop powered gauge or differential pressure smart transmitter, 4-20 mA and HART communications, FM, CSA, ATEX, NSF approvals, SIL 2/3 certified. Good for corrosive and non-corrosive gas, vapor, and liquid media temperatures -40° to 212° F (-40° to 100° C)
Siemens SITRANS P420 is a SIL-rated smart pressure transmitter designed for applications where safety is critical: in industries such as chemical, oil and gas, and power generation. It can be used in industrial areas with extreme chemical and mechanical loads.
With its advanced diagnostic functions and process value storage memory, the SITRANS P420 is "Ready for Digitalization". The P420 not only has increased accuracy, but also includes a trend logging capability for up to 1500 values, and a parameter change log, so you can trace any changes to transmitter configuration.
The SITRANS P420 can be ordered with a large HMI display that shows the device’s status at a glance. A display cover with a window lets you see the HMI without opening the transmitter case. Setup is convenient and quick through standard four-button programming, NAMUR NE107 diagnostics support and a quick start wizard.
SITRANS P420 transmitters are designed to replace older Siemens SITRANS P DS-III series transmitter models.
- Adjustable span 0.12 (3.2"wc) to 10153 PSIG (gauge pressure models), 0.04"wc to 435 PSID (differential pressure models)
- 4-20 mA output with HART communications standard
- Rangeability and turndown of up to 100:1
- Response times 105 mS for pressure, 135 mS for differential pressure
- Accuracy to 0.04% span; Long-term stability to 0.125% span per year for 5 years
- Four pushbuttons under nameplate cover for operational changes on the device; Integrated Quick Start wizard and parameter assignment using HART protocol and SIMATIC PDM; P420 includes parameter change log
- Display includes process variable in your choice of engineering units, plus %, mA, and 12-character free text message; Symbols on display show NAMUR device failure or out-of-specification, maintenance alerts, function test, output signal failure, and event counters
- Display can rotate 360° for optimal viewing
- Diagnostic functions in accordance with NAMUR NE107; Includes two trend logs with a maximum of 1500 values
- NEMA 4X/IP66/IP68 diecast aluminum or precision-cast stainless steel electronics enclosure with removable circular cover at front and back and access to pushbuttons under nameplate cover
- Screw cover with window available for viewing the display without opening the cover
- Full compliance to SIL2 and SIL3 requirements per IEC 61508
- Threaded, flanged, or flush-mount diaphragm process connections
- FM, CSA, ATEX, SIL, NSF approvals available
Model Selection Guide
Use this table to find the right model for your application. Call a Lesman sales specialist at 800-953-7626 for assistance building your complete model number.
Make one choice from each table section. A complete catalog number will look like this: 7MF04 _ _- _ _ _ _ _ - _ _ _ _.
| Description | Availability | Catalog
Number | |||
|---|---|---|---|---|---|
| Siemens SITRANS P420 SIL-Rated Smart Pressure Transmitter (Accuracy to ±0.04%) | |||||
| Measurement | Gauge Pressure Transmitter | ↓ | 7MF0400- | ||
| Gauge Pressure Transmitter with Flush Diaphragm | ↓ | 7MF0400- | |||
| Differential Pressure and Flow Transmitter (MAWP 2320) | ↓ | 7MF0440- | |||
| Measuring Cell Fill Fluid | Silicone Oil | ● | ● | ● | 1 _ _ _ _- |
| Inert Liquid | ● | ● | ● | 3 _ _ _ _- | |
| Neobee Oil | ● | ● | ● | 4 _ _ _ _- | |
| Measuring Span (Max) Gauge Pressure | 3.6 PSI (250 mbar) | ● | _ F _ _ _- | ||
| 14.5 PSI (1000 mbar) | ● | ● | _ J _ _ _- | ||
| 58 PSI (4000 mbar) | ● | ● | _ N _ _ _- | ||
| 232 PSI (16 bar) | ● | ● | _ Q _ _ _- | ||
| 914 PSI (63 bar) | ● | ● | _ T _ _ _- | ||
| 2321 PSI (160 bar) | ● | _ V _ _ _- | |||
| 5802 PSI (400 bar) | ● | _ W _ _ _- | |||
| Measuring Span (Max) Differential Pressure | 8.037 In H2O (20 mbar) | ● | _ B _ _ _- | ||
| 24.11 In H2O (60 mbar) | ● | _ D _ _ _- | |||
| 100.5 In H2O (250 mbar) | ● | _ G _ _ _- | |||
| 241.1 In H2O (600 mbar) | ● | _ H _ _ _- | |||
| 643 In H2O (1600 mbar) | ● | _ M _ _ _- | |||
| 2009 In H2O (5000 mbar) | ● | _ P _ _ _- | |||
| 435 PSID (30 bar) | ● | _ R _ _ _- | |||
| Process Connection | 1/2"-14 NPT Female Thread | ● | _ _ E _ _- | ||
| 1/2"-14 NPT Male Thread | ● | _ _ F _ _- | |||
| Oval Flange, 7/16"-20 UNF Mounting Thread | ● | _ _ G _ _- | |||
| Oval Flange, 7/16"-20 UNF Mounting Thread | ● | _ _ L _ _- | |||
| Oval Flange, 7/16"-20 UNF Mounting Thread with Lateral Vent | ● | _ _ N _ _- | |||
| Flush-Mounted Diaphragm | ● | _ _ K _ _- | |||
| Wetted Parts | 316L SS Process Connection and Seal Diaphragm | ● | ● | ● | _ _ _ 0 _- |
| 316L SS Process Connection, C276 Alloy Seal Diaphragm | ● | ● | ● | _ _ _ 1 _- | |
| Housing Material | Diecast Aluminum | ● | ● | ● | _ _ _ _ 1- |
| Stainless Steel Precision Casting | ● | ● | ● | _ _ _ _ 2- | |
| Enclosure | Dual Chamber Device | ● | ● | ● | 5 _ _ _ |
| Protection | None (for General Service Applications) | ● | ● | ● | _ A _ _ |
| Flameproof Enclosure | ● | ● | ● | _ C _ _ | |
| Flameproof Enclosure, Intrinsic Safety | ● | ● | ● | _ D _ _ | |
| Intrinsic Safety, Flameproof, Dust Protection by Zones 20/21/22 | ● | ● | ● | _ T _ _ | |
| Cable Entries | 2 x 1/2"-14 NPT Thread for Cable Gland | ● | ● | ● | _ _ M _ |
| Local Operation/ Display | No Display, Solid Closed Cover | ● | ● | ● | _ _ _ 0 |
| With Display, Solid Closed Cover | ● | ● | ● | _ _ _ 1 | |
| With Display, Solid Glass-Window Cover | ● | ● | ● | _ _ _ 2 | |
| HART | Yes |
|---|---|
| SIL-Rated | Yes |
| Measuring Range | 0.15 to 10153 PSIG, 0145 to 435 PSID |
| Wetted Materials | Stainless Steel |
To build your complete part number, make a selection from each table section below. Your completed model and its price will appear in the Results section. If you don't see the options you need, call us.
Results
| Please complete your model selections. |
