Our Company
Huadian Automation has been committed to the research and development of industrial process automation sensors and instruments since its establishment. The main products include flow meters, water quality analysis instruments,recorders, pressure transmitters, signal isolators and other field instruments.Huadian Automation is already working extensively in the oil and gas, water and wastewater, chemical and petrochemical industries in more than 120 countries and will take further efforts to get closer to customers and respond to their needs quickly and efficiently.
By 2022, Huadian Automation will have a large number of R&D personnel and engineers, and the total number of group employees will exceed 500. With the diversified market needs
In order to serve global customers, Huadian Automation has established and/or is preparing to establish offices in Singapore, Vietnam, Russia, Germany, Philippines, Malaysia, India and other places.
Huadian Automation continuously strives to establish close partnerships with companies around the world, integrating itself into the local innovation system while providing global technology innovation make a contribution.
With a customer-centric approach,Huadian Automation will continue to focus on process automation sensors and instruments and play an indispensable role in supporting the world's industries to become more intelligent and efficient. indispensable role.

Products Description
HDP500 series pressure transmitter pressure sensitive core adopts high performance silicon piezoresistive pressure filling core. The internal ASIC converts the sensor millivolt signal into standard voltage, current or frequency signal, which can be directly connected with computer interface card, control instrument, intelligent instrument or PLC. Current output mode can be used for distance transmission. It has small volume, light weight, all stainless steel sealing structure and can work in corrosive environment. The product is easy to install and has high anti-vibration and anti-impact performance. It is widely used in process control, aviation, aerospace, automobile, medical equipment, HVAC and other fields.

Parameters:
· Laser label printing
· High Precision ,Isolation circuit board
· Microamplifier, output of voltage, current and RS485 signals
· Strong anti-interference and long-term stability
· Diversification of shape and structure
· Guarantee period: 12 months
Technical Parameters:
Model | HDP500 |
Power supply | 24VDC |
Output single | 4~20mA,1~5V,0~10V,RS485 |
Measuring range | -0.1...0...60Mpa |
Compensation temperature | -10~70ºC |
Medium temperature | -40~80ºC |
Environment temperature | -40~85ºC |
Measuring media | Gaseous,Liquid,Water |
Pressure type | Gauge pressure,Absolute pressure |
Accuracy | 0.1%F.S,0.25%F.S,0.5%F.S(standard) |
Zero tempe drift | ±0.03%F.S/ºC |
Sensitivity temperature drift | ±0.03%F.S/ºC |
Overload | 200%F.S |
Long-term stability | ≤0.2%F.S/year |
Inherent frequency | 5kHz~650kHz |
Protection grade | IP65 |

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Q: Are you trading company or manufacturer ?
A: We are a manufacturer, committed to producing high accuracy, long-term stability, cost-efficient pressure/ level/ temperature measuring instruments.
Q: What's your quality control system?
A: All of our products are completed with temperature compensation and 48 hours aging test before shipment. And all of our products will be fully pre-inspection by QC departments before shipping to you . We have the certification of ISO,CE we could send the certification test of our company to you.
Q: What is the warranty of your products?
A: 2 years for level transmitter and pressure transmitter series others are 5 years from shipment date, for non-man-made damages.
Q: What is your shipping method?
A: Small orders are delivered with DHL, FedEx, TNT, UPS , EMS. Large orders are recommended to ship by sea.
Q: Do you provide samples ?
A: Yes,we have materials in stock to help you to get the samples as soon as we can.
Q: How long will you give me the reply?
A: We can support you 24Hours online service via email, skype, what'sapp, facebook etc within 1 hour.