3051CA Absolute Pressure Transmitter for Gas, Steam, and Liquid Measurement
The Rosemount 3051CA Absolute Pressure Transmitter provides accurate and reliable measurement of gas, steam, and liquid applications. Its coplanar design allows flexible installation, while advanced sensor technology ensures long-term stability and dependable performance in demanding environments.
| Parameter |
3051CA |
3051CG |
3051TA |
3051TG |
3051CD |
3051TD |
| Pressure Type |
Absolute |
Gauge |
Absolute |
Gauge |
Differential |
Differential |
| Design |
Coplanar |
Coplanar |
Traditional (in-line) |
Traditional (in-line) |
Coplanar |
Traditional (in-line) |
| Typical Applications |
Gas, steam, liquid absolute pressure |
General process pressure, liquid level (with DP) |
Vacuum systems, steam, gas, and absolute measurement |
Pipeline and vessel pressure monitoring |
Flow, level, differential pressure |
Flow and level in traditional piping |
| Key Features |
High accuracy, long-term stability, flexible coplanar integration |
Compact coplanar design, easy manifold integration |
Rugged in-line design, wide process connections |
Simple installation, robust housing |
Multi-variable capability, coplanar flexibility |
Rugged design, high static pressure capability |
Product Specifications:
| Model |
Pressure Type |
Range Example (Typical) |
Accuracy |
Output Options |
Key Features |
| 3051CD |
Differential |
–250 to +250 inH₂O |
±0.04% of span |
4–20 mA HART, Fieldbus, Wireless |
Ideal for flow and level, Coplanar™ design, diagnostics for impulse lines |
| 3051CG |
Gauge |
0 to 300 psi |
±0.04% of span |
4–20 mA HART, Fieldbus, Wireless |
Measures pressure relative to the atmosphere; robust for general process use |
| 3051CA |
Absolute |
0 to 150 psia |
±0.04% of span |
4–20 mA HART, Fieldbus, Wireless |
Used in vacuum or sealed systems; stable under varying atmospheric conditions |
3051C vs. 3051S – When to Choose What
| Feature |
3051C Series |
3051S Series |
| Accuracy |
±0.04% of span |
Up to ±0.025% of span |
| Rangedown |
Up to 150:1 |
Up to 200:1 |
| Cost |
More economical |
Higher investment |
| Use Case |
Standard industrial applications |
High-precision or critical applications |
| Diagnostics |
Loop Integrity, Plugged Line Detection |
Advanced diagnostics, remote display |
Product Selection Table:
| model |
Type of transmitter (choose one) |
CD |
CG |
CA |
| 3051CD 3051CG 3051CA |
Differential pressure transmitter, Gauge pressure transmitter, Absolute pressure transmitter |
--
--
--
|
--
--
--
|
--
--
--
|
| code |
Pressure range (URL) (choose one)
3051CD type 3051CG type 3051CA type |
CD |
CG |
CA |
| 0 |
Not provided 0-0.167to0-5psia
(0-8.6to0-260mmHga) |
-- |
-- |
-- |
| 1 |
0-0.5to0-25inH20 Not 0- 0.3 to 0- 30 psi
(0-2.07to0-206.8kPa) (0-2.07to0-206.8kPa) |
-- |
-- |
-- |
| 2 |
0-2.5to0-250inH200-2.5to0-250inH200-1.5to0-150psia
(0-0.62to0-62.2kPa)(0-0.62to0-62.2kPa)(0-10.34to0-1034.2kPa) |
-- |
-- |
-- |
| 3 |
0-10to0-1000inH200-10to0-1000inH200-8to0-800psia
(0-2.48to0-248kPa)(0-2.48to0-248kPa)(0-55.16to0-5515.8kPa) |
-- |
-- |
-- |
| 4 |
0-3to0-300 psi 0-3to0-300 psi 0-40to0-4000 psi
(0-20.7to0-2070kPa)(0-20.7to0-2070kPa)(0-275.8to0-27580kPa) |
-- |
-- |
-- |
| 5 |
0-20 to 0-2000 psi 0-200 to 0-2000 psi
(0-138 to 0-13800kPa) (0-138 to 0-13800kPa) |
-- |
-- |
-- |
| code |
output |
CD |
CG |
CA |
A
M(1) |
4- 20mA, with digital signal based on HART protocol
Low power consumption, 1-5VDC with digital signal based on HART protocol (0.8-3.2Vdc, using option code C2) Not provided |
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-- |
--
--
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--
--
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Applications:
❓ Frequently Asked Questions (FAQ)
Q1: What is the Rosemount 3051CA Absolute Pressure Transmitter used for?
A1: It is designed to measure absolute pressure in gases, steam, and liquids, ensuring accurate and stable readings in demanding industrial applications.
Q2: How is the 3051CA different from the 3051CG?
A2: The 3051CA measures absolute pressure, while the 3051CG measures gauge pressure. Both share the coplanar design, but they serve different measurement needs.
Q3: What does “coplanar design” mean?
A3: The coplanar design allows the transmitter to be easily integrated with manifolds and accessories, providing flexibility for flow, level, and pressure applications.
Q4: What industries typically use the 3051CA?
A4: It is widely used in oil & gas, power generation, chemical processing, and water treatment, where precise absolute pressure measurement is critical.
Q5: What are the key benefits of the 3051CA?
A5:
- High accuracy and long-term stability
- Flexible installation with coplanar platform
- Reliable performance in harsh environments
Q6: Can the 3051CA be used for vacuum measurement?
A6: Yes. Since it measures absolute pressure, it is suitable for vacuum and low-pressure applications where gauge transmitters are not accurate.
Q7: What communication protocols are available?
A7: The 3051CA supports 4–20 mA HART®, and depending on configuration, can also be ordered with FOUNDATION Fieldbus or Profibus PA.
Typical Models of 3051CG Transmitters:
| Model Code |
Range Code |
Diaphragm Material |
Vent/Drain Material |
Mounting Bracket |
Display Option |
Special Option |
| 3051CG1A02A1AB1H2L4M5 |
1 |
316L SST |
SST |
Coplanar SST |
LCD (M5) |
— |
| 3051CG2A02A1AB1H2L4M5 |
2 |
316L SST |
SST |
Coplanar SST |
LCD (M5) |
— |
| 3051CG3A02A1AB1H2L4M5 |
3 |
316L SST |
SST |
Coplanar SST |
LCD (M5) |
— |
| 3051CG4A02A1AB1H2L4M5 |
4 |
316L SST |
SST |
Coplanar SST |
LCD (M5) |
— |
| 3051CG5A02A1AB1H2L4M5 |
5 |
316L SST |
SST |
Coplanar SST |
LCD (M5) |
— |
| 3051CG1A02A1AB3H2L4M5 |
1 |
316L SST |
SST |
Coplanar SST |
LCD (M5) |
Process Flange B3 |
| 3051CG1A02A1AB1H2L4M5K5 |
1 |
316L SST |
SST |
Coplanar SST |
LCD (M5) |
K5 (Tagging) |
| 3051CG1A02A1AB1H2L4M5E5 |
1 |
316L SST |
SST |
Coplanar SST |
LCD (M5) |
E5 (Calibration) |
| 3051CG1A02A1AB1H2L4M5I5 |
1 |
316L SST |
SST |
Coplanar SST |
LCD (M5) |
I5 (Certs/Docs) |
| 3051CG1A22A1AB4M5 |
1 |
316L SST |
SST |
Coplanar SST |
LCD (M5) |
Output A22 |
| 3051CG1A22A1AB4M5DF |
1 |
316L SST |
SST |
Coplanar SST |
LCD (M5) |
DF (Factory Config) |
| 3051CG1A22A1AB4M5K5 |
1 |
316L SST |
SST |
Coplanar SST |
LCD (M5) |
K5 (Tagging) |
| 3051CG1A22A1AB4M5E5 |
1 |
316L SST |
SST |
Coplanar SST |
LCD (M5) |
E5 (Calibration) |
| 3051CG1A22A1AB4M5I5 |
1 |
316L SST |
SST |
Coplanar SST |
LCD (M5) |
I5 (Certs/Docs) |
Good Service:
We offer high-quality, fast delivery, and competitive prices for Transmitters.
> Please send your RFQ to get the latest price.
> We will ship the items within 3-5 working days after receiving the payment.
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