Explosion Proof Smart High Accuracy 4-20mA/Hart Pressure Transmitter with LCD Display
Price: |
Negotiable/Piece |
Trade Terms: |
FOB,EXW |
Min Order: |
1/Piece |
Pay Type: |
L/C,T/T,Western Union,Paypal |
Prod Model: |
WNK51 |
Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
Range Down: |
100:1 |
Output Signal: |
4~20m, Hart, Profibus-PA |
Housing Material: |
Aluminum Alloy |
Stability: |
0.15% of Url for 5 Years |
Temperature Drift: |
0.03% of Url/10oc |
Protection Class: |
IP66/67 |
Measuring Medium: |
Gas, Steam, Liquid |
Accuracy Grade: |
0.075% |
Pressure Range: |
-100kpa~700bar |
Product Description
Features-WNK51 Smart High Accuracy Gauge/Absolute Pressure Transmitter - High reference accuracy up to 0.075%.
- Long-term drift ≤±0.25%URL for 1 year.
- Hart, PROFIBUS-PA or FF protocol for option.
- Intrinsically safe and flameproof explosion proof
- Range down ratio 100: 1
- Smart type for easy calibration

Technical Data-WNK51 Smart High Accuracy Gauge/Absolute Pressure Transmitter Applicable media | Liquid, gas and steam |
Pressure range | -100KPa~70MPa |
Accuracy | 0.075%, higher on request |
Stability | ±0.15% of URL for 5 years |
Temperature drift | ±0.03% of URL/10ºC |
Output signals | 4~20mA, Hart, PROFIBUS-PA for option |
Housing material | Aluminum14 |
Process connection | M20×1.5; G1/2; 1/2NPT; 1/4 NPT; Customization |
Protection class | IP66/67 |
Ex-proof | Exia II CT4, Exia III CT6, Exd IICT6 |
Power Supply | 10.5-55V DC 10.5-30V DC (recommend 24V DC) |
Ambient temperature | -40 to 85ºC, -40 to 80ºCfor LCD header |
Storage temperature | -45 to 85ºC, -40 to 80ºC for LCD header; |
Measurement | With display: 95*126*52 (mm) |
Without display: 95*115*52 (mm) |
Net Weight | 1.7kg (without bracket or process connection) |
Ordering information-WNK51 Smart High Accuracy Gauge/Absolute Pressure Transmitter Model | Product Details |
WNK51 | Smart high precision pressure transmitter |
Code | Approval |
A | For non-hazardous areas |
1 | ExiaIICT6 |
2 | ExiaIICT4 |
3 | ExdIIBT6 |
For other approvals or more information, please contact with us |
Code | Output Code |
A | 4…20mA |
H | 4…20mA, HART |
P | PROFIBUS-PA |
F | FF |
Code | Display |
A | No display |
L | LCD |
Code | Housing; Cable entry; Protection |
A | Aluminum14, M20×1.5, IP66/67 |
B | Aluminum 14, G1/2, IP66/67 |
C | Aluminum14, 1/2NPT, IP66/67 |
Code | Sensor range, for gauge pressure | Code | Sensor range, for absolute pressure |
1C | 100mbar (10kPa/1mH2O) | 2C | 100mbar (10kPa/1mH2O) |
1E | 250mbar (25kPa/2.5mH2O) | 2E | 250mbar (25kPa/2.5mH2O) |
1F | 400mbar (40kPa/4mH2O) | 2F | 400mbar (40kPa/4mH2O) |
1H | 1bar (100kPa/10mH2O) | 2H | 1bar (100kPa/10mH2O) |
1K | 2bar (200kPa/20mH2O) | 2K | 2bar (200kPa/20mH2O) |
1M | 4bar (400kPa/40mH2O) | 2M | 4bar (400kPa/40mH2O) |
1P | 10bar (1MPa/100mH2O) | 2P | 10bar (1MPa/100mH2O) |
1S | 40bar (4MPa/400mH2O) | 2S | 40bar (4MPa/400mH2O) |
1U | 100bar (10MPa/1000mH2O) | 2U | 100bar (10MPa/1000mH2O) |
1W | 400bar (40MPa/4000mH2O) | 2W | 400bar (40MPa/4000mH2O) |
1X | 700bar (70MPa/7000mH2O) | 2X | 700bar (70MPa/7000mH2O) |
Code | Calibration, Unit |
1 | Sensor range, mbar/bar |
2 | Sensor range, kPa/MPa |
3 | Sensor range, mmH2O/mH2O |
4 | Sensor range, psi |
Code | Diaphragm material |
1 | 316L |
2 | Alloy C-276 |
X | Other special requirement |
For other special kind of diaphragm, please contact with us. |
Code | Process connection; Screw |
GA | Male thread G1/2, inner hole 3mm, 316 |
GB | Male thread G1/2, inner hole 11.4mm, 316 |
GC | Female thread G1/2, inner hole 3mm, 316 |
GD | Female thread G1/2, inner hole 11.4mm, 316 |
NA | Male thread 1/2NPT, inner hole 3mm, 316 |
NB | Male thread 1/2NPT, inner hole 11.4mm, 316 |
NC | Female thread 1/2NPT, inner hole 3mm, 316 |
ND | Female thread 1/2NPT, inner hole 11.4mm, 316 |
MA | Male thread M20×1.5, inner hole 3mm, 316 |
MB | Male thread M20×1.5, inner hole 11.4mm, 316 |
JX | Other special requirement |
For other special connection screw thread, please contact with us. |
Code | Process connection material |
3 | 316 |
H | Alloy C |
Code | Overvoltage protection |
A | No |
M | Overvoltage protection |
Code | Mounting bracket |
A | No |
U | Mounting bracket for pipe |
Typical model#: WNK51 AHL A1P21 MA3 AU |
Installation diagram (unit: mm)-WNK51 Smart High Precison pressure transmitter 
Product application


Delivery3~10 days after order confirmedWhy Choose us?
1. We are professional manufacturer with own R&D and sales team, with more than 13 years producing experience in transmitters & sensors.
2. We have strict quality control system, each set product we do temperature compensation and aging test before shipment, so the quality is guaranteed. FAQQ: Are you manufacturer or trading company? A: We are professional pressure/level/temperature measurement manufacturer with more than 13 years of experience. Our factory address is: 4/F, Bldg #6, No. 168, Xiangzhang Road, High-tech District, 230088, Hefei, Anhui province, China. Q: What's your quality control system? A: We are an ISO 9001-2015 certified manufacturer, we have strict quality control system. Besides clibartiaon, each set product we also do temperature compensation and aging test before shipment, so the quality is guaranteed. Q: What is the warranty of your products? A: 12 month from shipment date, for non-man-made damages. Q: Can we use our logo on the products? Do you provide customized products? Yes. We can use your logo, we can provide customized products per requirement. OEM/ODM is welcomeQ: What is yor MOQ? A: We have no MOQ limits, small quantity order is acceptable. Q: What's the transport? A: Express such as DHL, FedEx, TNT, UPS for freight prepaid, also can use your own couier account to do the freight collect. For more goods we can arrange by air or by Sea. Contact
Founded in 2004, ANHUI WNK ELECTRONIC ENGINEERING Co., Ltd is a hi-tech company specializing in different kinds of technologically-advanced and good quality sensor, transmitter and automation instrument. We devote to developing, manufacturing and selling of automation control system, providing our customers comprehensive fieldbus technical solutions and factory informatization construction.
Our main products include iEOS industrial cloud data base developing plate form; Industrial Internet of Things; WNK-WMS industrial wireless measurement system; Onsite measurement instruments like temperature, pressure, flow, level sensor and transmitter etc, widely applied in Petrochemical, Chemical, Power, Steel and Cement.
WNK is the third company in China developed PROFIBUS transmitters. WNK series PROFIBUS transmitter is the fourth in China certificated by international PROFIBUS organization, and Chinese first that completely having proprietary intellectual property rights. WNK PROFIBUS-PA temperature transmitters filled Chinese blank technology in the field.
With strict, scientific management system, WNK has been certificated to conform to standard GB/T 19001-2008 / ISO 9001: 2008 by China CLASSIFICATION SOCIETY CERTIFICATION COMPANY. WNK commits to developing of new products and technical innovation. With continuously effort in advanced technology of automation control system, WNK has been undertaking some innovation projects of MST (Ministry of Science and Technology), and has been honored as promising enterprise of "Giant of Technology "in Hefei Hi-tech Industry Development Zone.
As Chinese first and unique qualified production enterprise of 0.075% measurement in Anhui, WNK brand was awarded Anhui Famous Brand.
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