3051CD Hart Pressure Transmitter
Introduction:
The Rosemount 3051CD is a high-performance differential pressure transmitter designed for precise measurement and long-term reliability in industrial applications. With advanced HART® digital communication, exceptional accuracy (±0.04% of span), and robust diagnostics, it supports critical operations in flow, level, and pressure monitoring. Its Coplanar™ platform simplifies installation, while optional Bluetooth® and WirelessHART® capabilities enhance remote configurability and operational efficiency.
Technical Parameters:
| Feature / Model |
3051CD (Differential) |
3051CG (Gauge) |
3051CA (Absolute) |
3051S (SuperModule) |
| Measurement Type |
Differential Pressure |
Gauge Pressure |
Absolute Pressure |
All types (DP, GP, AP) |
| Reference Accuracy |
±0.04% of span |
±0.04% of span |
±0.04% of span |
±0.025% of span |
| Stability (10 years) |
±0.2% of URL |
±0.2% of URL |
±0.2% of URL |
±0.125% of URL |
| Rangeability (Turndown) |
Up to 150:1 |
Up to 150:1 |
Up to 150:1 |
Up to 200:1 |
| Output Protocols |
4–20 mA HART, Wireless |
4–20 mA HART |
4–20 mA HART |
HART, FOUNDATION Fieldbus, Wireless |
| Coplanar™ Platform |
✅ |
✅ |
✅ |
✅ |
| Bluetooth® Option |
✅ |
✅ |
✅ |
✅ |
| Diagnostics |
Loop Integrity, Plugged Line |
Same |
Same |
Advanced + Power Advisory |
| Display Option |
Graphical LCD (M6) |
Same |
Same |
Enhanced LCD |
| SIL Certification |
SIL 2/3 |
SIL 2/3 |
SIL 2/3 |
SIL 2/3 |
| Best Use Cases |
Flow, Level, Filter Monitoring |
Tank Pressure, Pump Control |
Vacuum Systems, Reactors |
High-accuracy critical apps |
Selection Tips
- Choose 3051CD for low differential pressure applications like filter monitoring or flow across orifice plates.
- Use 3051CG when measuring gauge pressure in tanks or pipelines.
- Opt for 3051CA for absolute pressure in vacuum or sealed systems.
- Select 3051S when ultra-high accuracy, diagnostics, or scalability are critical.
| 5 |
Coplanar electroplated carbon steel SST electroplated carbon steel |
-- |
-- |
-- |
| 2 |
Coplanar SST SST SST |
-- |
-- |
-- |
| 3(2) |
Coplanar Hastelloy C Hastelloy C Hastelloy C |
-- |
-- |
-- |
| 4 |
Coplanar Monel Monel Monel |
-- |
-- |
-- |
| 8(2) |
Coplanar electroplated carbon steel, Hastelloy C, electroplated carbon steel |
-- |
-- |
-- |
| 7(2) |
Coplanar SST Hastelloy C SST |
-- |
-- |
-- |
| 0 |
Alternative flange - see options H2H3H4H7F1F2G1G2FAFBFCFD or S5 |
|
|
|
| code |
Isolation Diaphragm |
CD |
CG |
CA |
| 5 |
316L SST |
-- |
-- |
-- |
| 2 |
Hastelloy C-276 |
-- |
-- |
-- |
| 3(2) |
Monel |
-- |
-- |
-- |
| 4 |
Tantalum (only applicable to 3051CD and CG models, range 2-5. Not applicable to 3051CA model) |
-- |
-- |
-- |
| 5 |
Gilded Monel |
-- |
-- |
-- |
| 6 |
|
|
|
|
| code |
0-type ring |
CD |
CG |
CA |
| A |
Glass-filled tetrafluoroethylene (TFE) |
-- |
-- |
-- |
| B |
Graphite-filled tetrafluoroethylene (TFE) |
-- |
-- |
-- |
| code |
Fill liquid |
CD |
CG |
CA |
| 1 |
silicone oil |
-- |
-- |
-- |
| 2 |
Inert liquid (halogenated hydrocarbon) |
-- |
-- |
-- |
| code |
Shell material, conduit inlet size |
CD |
CG |
CA |
| A |
Aluminum, coated with polyurethane coating 1/2-14NPT |
-- |
-- |
-- |
| B |
Aluminum, coated with polyurethane M2x1.5 (CM20) |
-- |
-- |
-- |
| C |
Aluminum, coated with polyurethane PG13.5 |
-- |
-- |
-- |
| D |
Aluminum, coated with polyurethane G 1/2 |
-- |
-- |
-- |
| J |
SST 1/2-14NPT |
-- |
-- |
-- |
| K |
SST M2x1.5 (CM20) |
-- |
-- |
-- |
| L |
SST PG13.5 |
-- |
-- |
-- |
Rosemount 3051CD HART Pressure Transmitter – FAQ
1. What does the model “3051CD” signify?
The “C” denotes the Coplanar™ design, while “D” indicates Differential Pressure measurement capability.
2. How accurate is the 3051CD?
It offers exceptional accuracy of ±0.04% of span, with long-term stability of ±0.2% URL over 10 years.
3. Which communication protocols are available?
Standard output is 4–20 mA with HART®. Optional WirelessHART® and Bluetooth® configurations are also available for enhanced flexibility.
4. Can it be used for flow and level applications?
Absolutely. Paired with primary flow elements or installed on pressurized tanks, it provides dependable flow and level monitoring.
5. What pressure ranges are supported?
Multiple range codes are available, from ±3 inH₂O to ±2000 psi, covering low differential to high static pressure needs.
6. What’s the best mounting position for low-pressure applications?
For optimal accuracy in draft ranges, mount the unit with isolators parallel to the ground.
7. What kind of diagnostics are included?
Built-in Loop Integrity and Plugged Impulse Line Detection help identify installation issues and maintain uptime.
8. Is the 3051CD certified for safety systems?
Yes, it is SIL 2/3 certified, meeting the requirements for Safety Instrumented Systems (SIS).
9. What is the weight of the transmitter?
Approximately 5.7 lbs (2.6 kg), excluding optional mounting assemblies or accessories.
10. What materials are used for wetted components?
Options include 316L Stainless Steel, Alloy C-276, Tantalum, and others to ensure compatibility with demanding process fluids.
Your message must be between 20-3,000 characters!
