Language
English عربى русский 中文简体
XG3051DP Differential pressure transmitter Manufacturers
Home / Product / Pressure instruments / pressure transmitter / XG3051DP Differential pressure transmitter
  • XG3051DP Differential pressure transmitter
  • XG3051DP Differential pressure transmitter

XG3051DP Differential pressure transmitter

Product Introduction:
XG3051DP belongs to the domestically produced 3051 series capacitive intelligent differential pressure transmitter, which adopts the principle of capacitive sensing to convert the pressure difference of the measured medium into 4-20mA+HART standard signal. It can be used to measure process parameters such as differential pressure, liquid level, flow rate, closed container liquid level, pipeline pressure difference, etc. It is widely used in DCS and PLC control systems.  
                   
Application industry:
1. Petrochemical industry: reaction kettle liquid level, pipeline flow rate, filter pressure difference, tank liquid level, widely used in explosion-proof conditions.
2. Power industry: monitoring of boiler and turbine systems in power plants, steam and water flow rate, furnace negative pressure, container liquid level, and filter pressure difference.
3. Water treatment/environmental protection: sewage and water purification processes, tank level, pipeline flow rate, filter pressure difference.
4. Metallurgical industry: Measurement of fluid pressure difference, medium liquid level, and process pipeline flow in smelting processes.
5. Paper industry: pulp liquid level, filter pressure difference, process flow measurement.       

Contact Us
PREV：XG3051LT Differential pressure liquid level transmitterNEXT：XG3051DP Differential pressure remote transmitter
Core Advantage Specification Application Feature FAQ Instructions

Physical Specifications

Item Description
Material
Measuring Capsule Stainless Steel 316L
Diaphragm Stainless Steel 316L, Hastelloy C
Process Flange Stainless Steel 304
Nuts and Bolts Stainless Steel (A4)
Fill Fluid Silicone Oil
Seal / Gasket NBR (Nitrile Butadiene Rubber), FKM (Fluoro Rubber), PTFE (Polytetrafluoroethylene)
Transmitter Housing Aluminum Alloy, surface spray-coated with Epoxy Resin
Housing Gasket NBR (Nitrile Butadiene Rubber)
Nameplate Stainless Steel 304
Weight 3.3 kg (excluding LCD, mounting bracket, process connection)
Housing Protection Class IP67

EMC Annex Table (Electromagnetic Compatibility Annex）
No. Test Item Basic Standard Test Condition Performance Level
1 Radiated Disturbance (Enclosure) GB/T 9254-2008 Table 5 30MHz ~ 1000MHz Pass
2 Conducted Disturbance (DC Power Port) GB/T 9254-2008 Table 1 0.15MHz ~ 30MHz Pass
3 Electrostatic Discharge (ESD) Immunity GB/T 17626.2-2006 4kV (Contact) B
8kV (Air)
4 Radiated RF Electromagnetic Field Immunity GB/T 17626.3-2006 10V/m (80MHz ~ 1GHz) A
5 Power Frequency Magnetic Field Immunity GB/T 17626.8-2006 30A/m A
6 Electrical Fast Transient / Burst Immunity GB/T 17626.4-2008 2kV (5/50ns,5kHz) B
7 Surge Immunity GB/T 17626.5-2008 1kV (Line to Line) B
2kV (Line to Earth) (1.2 us/50us)
8 Conducted Disturbance Immunity, Induced by RF Fields GB/T 17626.6-2008 3V (150kHz ~ 80MHz) A

Notes:
(1) Performance Level A: During the test, performance remains normal within the limits of technical specifications.
(2) Performance Level B: During the test, function or performance may be temporarily degraded or lost, but it can recover automatically. The actual operating status, stored data, and its parameters remain unchanged.

Horizontal Piping Connection (Front View) Horizontal Piping Connection (Side View)
100041 100032
Vertical Mounting (Connector Facing Down) Vertical Mounting (Connector Facing Up)
100023 100014

Performance Specifications

Reference accuracy for adjusting the range
(Including zero-based linearity, hysteresis, and repeatability)±0.075%
If TD＞10 (TD = Maximum Span / Adjusted Span), the accuracy is:±(0.0075 × TD)%
The accuracy for square-root output is 1.5 times the above linear reference accuracy.

Ambient Temperature Effect

Span Code Total Effect from -20℃ ~ 65℃
A ±(0.45 × TD + 0.25)% × Span
B ±(0.30 × TD + 0.20)% × Span
C/D/E ±(0.20 × TD + 0.10)% × Span
Span Code Total Effect for -40℃ ~ -20℃ and 65℃ ~ 85℃
A ±(0.45 × TD + 0.25)% × Span
B ±(0.30 × TD + 0.20)% × Span
C/D/E ±(0.20 × TD + 0.10)% × Span
Out-of-Range Effect ±0.075% × Span

Static Pressure Effect

Span Code Effect Quantity
A ±(0.15%URL + 0.10%Span) / 4MPa
B ±(0.10%URL + 0.075%Span) / 16MPa
C/D/E ±(0.05%URL + 0.05%Span) / 16MPa

Overpressure Effect

Span Code Effect Quantity
A ±0.2% × Span / 4MPa
B ±0.2% × Span / 16MPa
C/D/E ±0.1% × Span / 16MPa

Long-term Stability

Span Code Effect Quantity
A ±0.5% × Span/year
B ±0.2% × Span/year
C/D/E ±0.1% × Span/year

Power Supply Effect: ±0.001% /10V (12- 42 V DC), negligible.

Functional Specification

Range and Limits
Span Code Item kPa mbar
A Span 0.1 ~ 1 1 ~ 10
Range −1 ~ 1 −10 ~ 10
B Span 0.2 ~ 6 2 ~ 60
Range −6 ~ 6 −60 ~ 60
C Span 0.4 ~ 40 4 ~ 400
Range −40 ~ 40 −400 ~ 400
D Span 2.5 ~ 250 25 ~ 2500
Range −250 ~ 250 −2500 ~ 2500
E Span 20 ~ 2000 0.2 ~ 20 bar
Range −500 ~ 2000 −5 ~ 20 bar
Parameter Specification
Range Limits Adjustable freely within the upper and lower limits of the range. It is recommended to select the span code with the lowest possible turndown ratio to optimize performance.
Zero Setting Zero and span can be adjusted to any value within the measuring range, provided that: Calibrated Span ≥ Minimum Span
Mounting Position Effect Changes of mounting position parallel to the diaphragm cause no zero drift. If position changes by more than 90° relative to the diaphragm surface, a zero offset within <0.4 kPa occurs (correctable by zero adjustment). No span effect.
Output 2-wire, 4~20 mA DC, optional HART digital communication.
Linear or square-root output selectable.
Output signal limits: Imin = 3.9 mA, Imax = 20.5 mA
Alarm Current Low-alarm mode (min): 3.7 mA
High-alarm mode (max): 21 mA
No-alarm mode (hold): hold the valid current before fault
Default: high-alarm mode
Response Time Damping constant of amplifier unit: 0.1 s; sensor time constant: 0.1~2 s (span & turndown dependent).
Additional adjustable time constant: 0.1~60 s.
Non-linear output effect (e.g., square-root) depends on the function and can be calculated.
Warm-up Time < 15 s
Ambient Temperature −40 ~ 85 ℃
−20 ~ 65 ℃ (with LCD and fluororubber O-ring)
Storage / Transport Temperature −50 ~ 85 ℃; −40 ~ 85 ℃ (with LCD display)
Working Pressure Rated working pressure: 16 MPa / 25 MPa / 40 MPa (three ratings)
Static Pressure Limit From 3.5 kPa absolute pressure up to rated pressure. The proof pressure can be 1.5 times the rated pressure, applied to both sides of the transmitter simultaneously.
Unidirectional Overload Limit Unidirectional overload up to rated pressure
Electromagnetic Compatibility (EMC) See Appendix Table of Electromagnetic Compatibility on next page

Installation

Power Supply and Load Conditions
Power Supply Voltage 24 V, R ≤ (Us − 12 V) / Imax kΩ
(where Imax = 23 mA)
Maximum Power Supply Voltage 42 VDC
Minimum Power Supply Voltage 12 VDC; 15 VDC (with backlit LCD)
Digital Communication Load Range 250 ~ 600 Ω

Electrical Connection
M20×1.5 cable gland; terminal block suitable for conductors of 0.5 ~ 2.5 mm².

Process Connection
The two end faces of the process connection flange are tapped with NPT 1/4 and M10 internal threads.

Q1: What parameters can XG3051DP measure?
A: This is a differential pressure transmitter that measures differential pressure at its core. Through differential pressure conversion, it can measure pipeline flow, closed container liquid level, pressure difference before and after filters, and furnace negative pressure. It is not possible to directly measure absolute pressure. When measuring flow, the HART square root function can be activated to output flow signals.

Q2: What is the reason for inaccurate transmitter output signal and large zero drift?
A: There are leaks, blockages, and fluid accumulation in the positive and negative pressure pipes; ② Range migration setting error; ③ Sudden changes in environmental temperature; ④ The membrane is subjected to overpressure impact. Prioritize checking the impulse piping and recalibrate the zero and range using a HART controller.

Q3: What are the precautions for XG3051DP two-wire wiring?
A: Adopting a DC24V two-wire system, without distinguishing between positive and negative signal lines, the maximum circuit load does not exceed 500 Ω; HART communication requires a circuit connected in series with a 250 Ω resistor; Strictly follow explosion-proof specifications for wiring in explosion-proof situations, and ensure reliable grounding of the casing.

Q4: What operating conditions require replacement of non 316L membranes?
A: The tested medium is a highly corrosive medium (strong acid, strong alkali, high chloride ion content), 316L will corrode, and it is necessary to select Hastelloy C, Monel or Tantalum film sheets; Food and pharmaceutical hygiene conditions require customized hygienic membrane structures.

Electrical Connections

Figure 5: Electrical Connection Diagram
100025

Note: The quick interface function is equivalent to the signal terminal.

Related Product

Xinguo Group Co., Ltd.
ABOUT US Xinguo Group Co., Ltd.
Xinguo Group Co., Ltd. is a high-tech enterprise with subsidiaries including Anhui Xinguo Instrument Co., Ltd., Anhui Xinguo Alloy Co., Ltd., Anhui Xinguo Cable Co., Ltd. and Anhui Xinguo Precious Metals Co., Ltd. Founded in 1997, the Group is located in Tianchang City, Anhui Province — a National Civilized City. It has a registered capital of 118 million RMB, covers a land area of over 150 mu and a building area of 60,000 square meters. The company currently has more than 300 employees, among whom over 50 are professional and technical personnel including senior engineers, engineers and assistant engineers.
The Group is a China Custom XG3051DP Differential pressure transmitter Manufacturers and XG3051DP Differential pressure transmitter Supplier, mainly engages in the R&D, production and sales of temperature instruments, pressure instruments, level instruments, flow instruments and digital display instruments. Its product portfolio also encompasses power cables, control cables, compensation cables, computer cables, signal cables, MI heating cables, mineral insulated cables, electric heat tracing tapes, cable trays and accessories, high and low voltage distribution equipment, complete automation control systems, instrument valves, pipeline valves and fittings, glass instruments and laboratory equipment. We also supply platinum-rhodium wires, precision alloys and complete mechanical equipment, while providing supporting processing, manufacturing, sales and technical services. Additionally, we deal in professional instrument materials, alloy materials and precious metals. Our products are widely applied in power, petroleum, chemical, metallurgy, building materials, machinery, food, aerospace, new energy and other industrial sectors, as well as scientific research and education fields.
Anhui Xinguo Alloy Co., Ltd. is dedicated to manufacturing a full range of precision alloy materials and serves as a council member of the Instrument Materials Branch of China Instrument & Control Society. Its flagship products cover thermocouple alloy wires (K, N, E, J, T types), thermocouple compensation alloy wires (KX, EX, NX, JX, TX, KCA, KCB, NC, SC), high-resistance heating alloys, precision resistance alloys, heating resistance alloys, pure nickel wires, manganese-copper alloys and Monel alloys. These products are extensively used in aviation, petroleum, chemical engineering, machinery manufacturing, power and energy industries.
VIEW MORE
  • 0year

    Founded in

  • 0+mu

    Cover an area of

  • 0+

    Experienced employees

  • 0㎡

    Building area

Certificates
NEWS Provide You With The
Latest Enterprise and Industry News
VIEW MORE