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Smart Input type liquid level pressure transmitter PCB board

FOB Price: Get Latest Price
Min.Order Quantity: 1 Piece/Pieces
Supply Ability: 10000 Piece/Pieces per Quarter
Port: Beijing
Payment Terms: T/T
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Quick Details

Place of Origin:
Beijing China (Mainland)
Brand Name:
Model Number:
Input-type liquid level transmitter
0-20mA plus HART protocol
Measure type:
Power supply:
Data backup:
On-board rewritable:
Basic Accuracy:
1 year

Packaging & Delivery

Packaging Detail: Carton and dedicated package
Delivery Detail: 45 days for OEM service; 1 Week when on stock


Support diffused silicone sensor, piezoresistance sensor, sapphire sensor, sputtered film sensor, stain piece sensor etc.

1. Brief introduction

Huakong HK-H991M board is designed in conformity with HART protocol. With HART communication, customers could manage and adjust the HART instrument and meantime monitor the process variables.


Applying Huakong HK-H100A Thick Film Integrated Circuit, it’s compatible with many piezoresistance sensors, such as diffused silicone sensor, piezoresistance sensor, thin film sensor, sapphire sensor, strain sensor etc.


HK-H991M is super pocket size, which can be used for 2.5mm diameter input type liquid level meter or direct pressure transmitter.  


2. Technology Specifications

2.1 Specifications

  • Basic accuracy of the output current: ±0.075%F.S
  • Power Supply: 12~36V DC
  • Output Signal: 4~20mA plus HART protocol (2-wire)
  • Operation Temperature: -40°C ~ +85°C
  • Relative Humidity: 95% (without condensation)
  • Sensor Excitation: constant current: maximum 1mA, adjustable
  • Dimension: 21.5mm*29.5mm*5.1mm

2.2 Performance

  • Metallic shield with glue sealing, high EMI-RFI immunity
  • High reliability, intrinsically safe design
  • Data protection mechanism, EEPROM data backup and recovering
  • Reprogramming available, achieving software update & upgrade
  • Applying advanced software temperature compensation manner
  • Embedded programmable Gain Amplifier (PGA), linearized processing of pressure collecting signal
  • Optimized communication wave, thus better communication effect


3. Type connection


5.  Software

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Beijing Huakong Technology Co., Ltd. was founded 1996, as a state-owned high-tech enterprise in Beijing. We are specialized in developing, manufacturing and marketing industrial automation products and systems. Huakong always regards our product quality and service as our company's life, emphasizing on strict management and continuous technical improvement. An ISO9001 certified quality control system has covered the whole process from the development, manufacture, marketing to service. View detail

Basic Information

Product/Service (We Sell): Hart Handheld Communicator,Hart Circuit Board for Flowmeters,Hart Circuit Board for Pressure Transmitters,Hart Circuit Board for Temperature Transmitters,Hart Modems  
Number of Employees: 51 - 100 People  

Trade & Market

Main Markets: South America
Southern Europe
North America
Eastern Europe
Western Europe
Southeast Asia
Eastern Asia
Domestic Market
Total Annual Sales Volume: US$2.5 Million - US$5 Million  
Export Percentage: 1% - 10%  

Factory Information

Factory Size (Sq.meters): 1,000-3,000 square meters  
Factory Location: No. 18, Anning Zhuang, East Road, Beijing. China  
Number of Production Lines: 3  
Number of R&D Staff: Less than 5 People  
Number of QC Staff: 5 - 10 People  
Management Certification: Certificate of Quality Management System Certification  
Contract Manufacturing: OEM Service Offered   Design Service Offered   Buyer Label Offered  

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China (Mainland) | Manufacturer, Trading Company | Contact Details
Experience: Established 1996 , 10 years OEM

Communicate with Supplier:

Mr. Ke Li
Mr. Ke Li:
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