Explosion Proof 3051C Pressure Transmitter With Display
The Rosemount 3051C Pressure Transmitter is a high-performance, industry-standard device designed for measuring differential, gauge, and absolute pressures. It’s part of Emerson’s 3051 series and is known for its Coplanar™ platform, which allows seamless integration with manifolds and flow or level solutions.
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Measuring principle
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3051C Coplanar Pressure Transmitter
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Characteristic
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advanced signal processing capabilities
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Supply voltage
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4...20 mA HART
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Reference Accuracy
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±0.5%
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Long-term stability
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0.05 % of URL/ year
0.08 % of URL/ 5 years
0.1 % of URL/ 10 years
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Process temperature
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-40°C...210°C
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Output
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4...20 mA HART PROFIBUS PA FOUNDATION Fieldbus
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Main wetted parts
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Ceraphire ceramic
Alloy C
316L
Monel
PVDF
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Process connection
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Thread:
G1/2...G2, R1/2, MNPT1/2...MNPT2
Flange:
DN25...DN80,
ASME 1"...4",
JIS 10K
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Process connection hygienic
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Tri-Clamp
DIN11851
Varivent N
SMS
DRD
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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 |
--
--
--
|
--
--
--
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--
--
--
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| 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 – Rosemount 3051C
1. What types of pressure does the 3051C measure?
It supports Differential (3051CD), Gauge (3051CG), and Absolute (3051CA) pressure measurements.
2. What is the accuracy of the 3051C?
It offers a reference accuracy of ±0.04% of span, with long-term stability of ±0.2% of URL over 10 years.
3. Can I commission the transmitter before installation?
Yes, the 3051C can be commissioned either before or after installation, using a handheld communicator or configuration software.
4. What is the weight of the 3051C?
The standard unit weighs approximately 5.7 lbs (2.6 kg) without mounting brackets.
5. How does the 3051C handle diagnostics?
It includes Loop Integrity and Plugged Impulse Line diagnostics to detect issues like corrosion, unstable power, or blocked lines.
6. What output protocols are available?
Options include 4–20 mA HART®, FOUNDATION™ Fieldbus, Profibus PA, WirelessHART®, and low-power HART.
7. Can the 3051C be used in hazardous environments?
Yes, it is SIL 2/3 certified and supports intrinsically safe and explosion-proof installations, provided proper wiring practices are followed.
8. What’s the difference between 3051CA and 3051T?
The 3051CA measures absolute pressure using a piezoresistive silicon sensor, while the 3051T handles both gauge and absolute with extended pressure ranges.
9. What are the common troubleshooting steps if the output is unstable or missing?
Check:
Power supply and load resistance
Electrical connections and grounding
Impulse lines for blockage or leaks
Configuration settings and damping time
10. Can I configure it wirelessly?
Yes! With the Bluetooth® option, you can configure and troubleshoot the device safely without opening the housing.
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.
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