Language
English عربى русский 中文简体
XG3051T Differential pressure/absolute pressure transmitter Manufacturers
Home / Product / Pressure instruments / Pressure transmitter / XG3051T Differential pressure/absolute pressure transmitter
  • XG3051T Differential pressure/absolute pressure transmitter
  • XG3051T Differential pressure/absolute pressure transmitter

XG3051T Differential pressure/absolute pressure transmitter

Product Introduction：
XG3051T is a 3051T series intelligent direct connected pressure transmitter, available in two types: gauge pressure and absolute pressure; Adopting capacitive sensing, 316L diaphragm, 4-20mA+HART output, 24VDC power supply, accuracy 0.075-0.15% FS, optional LCD, supporting local/manual calibration, explosion-proof shell, IP65 protection, wide range coverage, impact resistance, good long-term stability, directly installed in process pipelines, no need for pressure accessories.

Main applications:
Measure the pressure of gases, liquids, and vapors; Used in petrochemical, chemical, power, metallurgy, water treatment, and oil and gas pipeline networks; the absolute pressure type is suitable for vacuum, negative pressure, distillation, and distillation conditions; the gauge pressure is used for monitoring the pressure of ordinary pipelines and tank areas and is connected to DCS/PLC control systems.

Contact Us
PREV：XG3051T Differential pressure/absolute pressure remote transmitterNEXT：No next article
FAQ Performance Specifications Functional Specifications Installation Process Connection Instructions Physical Specifications
Q1: How to distinguish between XG3051T gauge pressure and absolute pressure models, and can they be used interchangeably?
A: The gauge pressure is based on the local atmospheric pressure, and the absolute pressure is based on absolute vacuum. The hardware bellows are different and cannot be directly interchanged; the absolute pressure type is preferred for vacuum working conditions, while the gauge pressure type is preferred for ordinary pipeline pressure.

Q2: The output signal is 4-20mA. Does it support the HART protocol?
A: XG3051T comes standard with 4-20mA+HART, which can be manually adjusted for parameters, or a local LCD head can be selected to view pressure values locally.

Q3: Can the medium directly contact the transmitter diaphragm, and what material is it in contact with?
A: The direct connection structure medium directly contacts the diaphragm, and the standard diaphragm is 316L stainless steel; Strong corrosive media require prior confirmation of operating conditions and selection of special membrane materials.

Q4: What are the common reasons for transmitter output failure and numerical jump?
A: First, check if the 24V power supply is normal and if there are any loose connections in the wiring; Secondly, investigate the impact and blockage of process media; Reset and calibrate with the HART controller again, and check the range setting for any abnormalities.

Q5: What on-site environments and explosion-proof levels is XG3051T suitable for?
A: Protection level IP65, supports explosion-proof selection; Suitable for petrochemical, chemical, water treatment, power, and other on-site applications; Avoid high temperatures exceeding the range and strong vibration environments, and the medium temperature should not exceed the product specification range.

Reference accuracy for adjusting range
(Including zero‑based linearity, hysteresis and repeatability)±0.075%If TD＞10 (TD = Maximum Range / Adjusted Range), then:±(0.0075 × TD)%

Ambient Temperature Effect

Range Code Total Effect at -20℃ ~ 65℃
B/L ±(0.30×TD+0.20)%×Span
Others ±(0.20×TD+0.10)%×Span
Range Code Total Effect at -40℃ ~ -20℃ and 65℃ ~ 85℃
B/L ±(0.30×TD+0.20)%×Span
Others ±(0.20×TD+0.10)%×Span

Over‑range Effect
±0.075% x Span

Long‑term Stability

Range Code Effect (Drift)
B/L ±0.2%×Span / 1 year
Others ±0.1%×Span / 1 year


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

Range and Measurement Range (XG3051T-Gauge Pressure)

Range Code Type kPa bar
B Range 0.6~6 6~60 mbar
Span -6~6 -60~60 mbar
C Range 2~40 0.02~0.4
Span -40~40 -0.4~0.4
D Range 2.5~250 0.025~2.5
Span -100~250 -1~2.5
F Range 30~3000 0.3~30
Span -100~3000 -1~30
G Range 0.1~10 MPa 1~100
Span -0.1~10 MPa -1~100
H Range 0.21~21 MPa 2.1~210
Span -0.1~21 MPa -1~210
I Range 0.4~40 MPa 4~400
Span -0.1~40 MPa -1~400
J Range 0.6~60 MPa 6~600
Span -0.1~60 MPa -1~600


Range and Measurement Range (XG3051T- Absolute Pressure）

Range Code Type kPa bar
L Range 2~40 0.02~0.4
Span 0~40 0~0.4
M Range 2.5~250 0.025~2.5
Span 0~250 0~2.5
O Range 30~3000 0.3~30
Span 0~3000 0~30
Item Description
Range Limits Can be adjusted arbitrarily within the upper and lower limits of the range. It is recommended to select the range code with the lowest possible turndown ratio to optimize performance characteristics.
Zero Setting Zero and span can be adjusted to any value within the measuring range specified in the table, provided that: Calibrated Span ≥ Minimum Span.
Mounting‑Position Effect Mounting‑position change parallel to the diaphragm surface will not cause zero drift. For mounting‑position deviation over 90° relative to the diaphragm surface: Range C exhibits zero drift ＜0.25 kPa; other ranges exhibit zero drift ＜0.15 kPa. All zero drift can be corrected by zero‑point 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 (minimum): 3.7 mA
High alarm (maximum): 21 mA
No‑alarm mode (hold): Hold valid current value before fault
Factory default alarm: High‑alarm mode
Response Time Amplifier damping constant: 0.1 s; Sensor time constant: 0.1‑1.6 s (depends on range and turndown ratio). Additional adjustable time constant: 0.1‑60 s.
Warm‑up Time ＜15 s
Ambient Temperature −40 ~ 85 °C
−20 ~ 65 °C (with LCD and FKM sealing ring)
Storage / Transport Temperature −50 ~ 85 °C
−40 ~ 85 °C (with LCD)
Pressure Limits From vacuum up to maximum range.


Overload Limit:

Range 6 kPa 40 kPa 250 kPa 3 MPa
Code (B) (C/L) (D/M) (F/O)
Overload Limit 0.2 MPa 1 MPa 4 MPa 16 MPa
Range 10 MPa 21 MPa 40 MPa 60 MPa
Code (H) (I) (I) (K)
Overload Limit 20 MPa 50 MPa 50 MPa 70 MPa


Electromagnetic Compatibility (EMC)
See next page, EMC Appendix'

Power Supply and Load Conditions
Power supply voltage is 24V,R ≤ (Us-12V)/Imax k
where Imax=23 mA
Maximum power supply voltage:42VDC
Digital communication load range: 230~600Ω

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

Process Connection
Standard process connection: NPT 1/2 internal thread. Adapters available for NPT 1/2, G1/2, M20×1.5 external thread, and KF16 vacuum port.

Process Connection Description (Code 1)

Standard Format (Code 1)
100064-Mjut 100054-1-6F2j
Derivative Interface Form
100045-Q4KA 100035-1-16L4 100026-Pa9e 100017-x8c5 100008-qbyJ

Model and Specification Code Table

Selection of 3051T Pressure Transmitter
1 G Gauge Pressure
A Absolute Pressure
2 Accuracy Output
U Basic error ±0.04% 4‑20mA with HART communication
B Basic error ±0.075% 4‑20mA with HART communication
A Basic error ±0.05% 4‑20mA with HART communication
C Basic error ±0.01% 4‑20mA with HART communication
N 4‑20mA analog output
3 Gauge Pressure
B 0‑0.6kPa ~ 6kPa / (0‑60 ~ 600 mmH₂O) / (0‑6 ~ 60mbar)
C 0‑2kPa ~ 40kPa / (0‑200 ~ 4000 mmH₂O) / (0‑20 ~ 400mbar)
D 0‑2.5kPa ~ 250kPa / (0‑0.25 ~ 25 mH₂O) / (0‑25 ~ 2500mbar)
F 0‑30kPa ~ 3MPa / (0‑3 ~ 300 mH₂O) / (0‑0.3 ~ 30bar)
G 0–0.1 MPa ~ 10 MPa (0–1 ~ 100 bar)
H 0–0.21 MPa ~ 21 MPa (0–2.1 ~ 210 bar)
I 0–0.4 MPa ~ 40 MPa (0–4 ~ 400 bar)
J 0–0.6 MPa ~ 60 MPa (0–6 ~ 600 bar)
L 0–2 kPa ~ 40 kPa (0–200 ~ 4000 mmH₂O / 0–20 ~ 400 mbar). Absolute pressure only
M 0–2.5 kPa ~ 250 kPa (0–25 ~ 2500 mbar). Absolute pressure only
N 0–30 kPa ~ 3 MPa (0–0.3 ~ 30 bar). Absolute pressure only
4 Diaphragm Material / Filling Fluid
A 316L stainlesssteel/siliconee oil
B 316L stainless steel / fluorinated oil
C Hastelloy C / silicone oil
D Hastelloy C / fluorinated oil
5 Process Connection
1 1/2" NPT internal thread
2 1/2" NPT external thread (with 1/4" NPT inside)
3 M20×1.5 external thread
4 G1/2 external thread
5 Vacuum connection DIN 28403 KF16 / ISO 2861
6 1/4" NPT external thread
6 Special Function
N None
P Lightning protection
O Oil‑free treatment (for oxygen measurement: fluorinated oil filling, FKM seal ring, <6 MPa, <60 °C)
7 Mounting Bracket
N None
1 Stainless steel
2 Galvanized carbon steel
8 Display
N No display
2 LCD with backlight (−20 °C)
3 OLED display (−40 °C)
9 Explosion‑proof Treatment
N Standard version
A Intrinsic safety type, NEPSI
D Flameproof type, NEPSI (excluding flameproof cable gland)
10 Additional Options
D Flameproof cable entry device
E Increased‑safety cable entry device
V Low‑voltage version
S Full stainless steel housing

Note:
Note 1: Range codes corresponding to the XG3051T interface; range codes corresponding to the XG3051T absolute‑pressure version.
Note 2: The vacuum connection DIN 28403 KF16 / ISO 2861 applies only to ranges within 2.5 bar.

 

Item Description
Materials Diaphragm: 316L stainless steel, Hastelloy C
Process connection: 316L stainless steel
Filling fluid: Silicone oil
Transmitter housing: Aluminum alloy with epoxy resin coating
Housing seal ring: Nitrile rubber (NBR)
Nameplate: 304 stainless steel
Weight 1.6 kg (without LCD, mounting bracket, and process connection)
Enclosure Protection Rating IP67


Electromagnetic Compatibility Schedule

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

Note:
(1) Performance Level A: Normal performance is maintained within the limits of technical specifications during testing.
(2) Performance Level B: Temporary degradation or loss of function/performance may occur during testing, with self‑recovery. Actual operating conditions, memory, and data remain unchanged.

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 XG3051T Differential pressure/absolute pressure transmitter Manufacturers and XG3051T Differential pressure/absolute 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