Yaoan (Shenzhen) Electronic Technology Development Co., Ltd.
                                                                                                           
Verified Supplier
19 Years
Since 2007
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YA-D400 Fixed Gas Alarm Detector with 24V Power, 0-100% LEL Range, and IP67 Protection

Price Negotiable
Price: Negotiable
MOQ: 1
Delivery Time: 2-7 working days
Brand: YAOAN
Product Description
YA-D400 Fixed Gas Alarm Detector
The YA-D400 series high-precision fixed gas detectors provide reliable monitoring for industrial environments where toxic or combustible gases may be present. These wall-mounted detectors offer continuous protection with advanced detection capabilities.
Applications
Widely used in chemical plants, petroleum facilities, metallurgy operations, liquefied gas stations, painting operations, and gas transmission systems where toxic or combustible gases may be generated, stored, or used.
Key Features
  • Real-time gas concentration display with clear backlit screen
  • Fault, low, and high alarm indicators with red backlight activation
  • Infrared remote control operation for convenient adjustment
  • Three distinct sound and light outputs for different alarm types
  • Zero, calibration, and test functions for maintenance
  • DC4-20mA standard signal output
  • Multiple communication options: RS485, two buses, LoRa
  • High-performance ARM microprocessor for reliable operation
  • Three relay outputs (250V 5A) for automatic control of fans and solenoid valves
  • Storage for 40 high and low alarm records
  • mg/m³ and μmol/mol conversion capability for toxic gases
Technical Specifications
Parameter Specification
Power Supply 24V DC
Power Consumption Combustible: ≤4W; Oxygen/Toxic: ≤3W
Detection Range Combustible: 0-100% LEL; Oxygen/Toxic: 0-1000 μmol/mol
Precision ±5% FS (sensor dependent)
Minimum Reading Combustible: 1% LEL; Toxic: 0.1 μmol/mol
Response Time Toxic: ≤60 seconds; Combustible: ≤30 seconds
Sensor Life 36 months (sensor dependent)
Sensor Type Combustible: catalytic combustion; Toxic: electrochemical
Detection Mode Diffused
Operating Mode Long-term continuous operation
Connection M20×15 explosion-proof hose with male thread
Explosion-proof Rating Ex d IIC T6 Gb/Ex tD A21 IP67 T80℃
Protection Class IP67
Operating Temperature Combustible: -40 to 70℃; Toxic: -20 to 60℃
Humidity Range 15% to 95% RH
Dimensions 205×209×84mm
Weight 2kg
Transmission Distance ≤1200m (RS485, 2-bus, 4-20mA)
YA-D400 Fixed Gas Alarm Detector industrial safety monitoring device
Manufacturer Information
Shandong Yaoan Electronic Technology Development Co., Ltd. has been manufacturing gas detection equipment since 2007. The company holds ATEX, SIL, CE, FCC, ROHS, and ISO9001 certifications, ensuring product quality and reliability for industrial applications.
Frequently Asked Questions
What services do you provide?
OEM/ODM services and online technical guidance for calibration, zero adjustment, settings, and installation.
Are you a manufacturer or trading company?
We are the manufacturer with over 16 years of experience since 2007.
What certifications do you have?
ATEX, SIL, CE, FCC, ROHS, ISO9001 and more.
What is the warranty period?
1 year warranty with technical support.
Do you provide after-sales technical guidance?
Yes, we provide online guidance for calibration, zero adjustment, settings, and installation.
What is the lead time?
Typically 3-7 working days after payment, with expedited options available.
What payment methods are accepted?
Credit card, T/T, Western Union and other standard payment methods.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Yaoan (Shenzhen) Electronic Technology Development Co., Ltd.
Location Room 517, 5th Floor, Building 10B, Zone 3, Shenzhen Bay Science and Technology Ecological Park, Gaoxin South Ring Road, Shenzhen High tech Industrial Park (South District), Nanshan District, Shenzhen
Contact Person Yao

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