The High Precision Oxygen Detection Alarm is designed for accurate monitoring of oxygen levels in various environments. With a clear LCD digital display, this device enables easy reading and immediate alerts to ensure safety.
Precision Monitoring: Reliable oxygen level readings for enhanced safety.
LCD Digital Display: Displays real-time oxygen levels and alerts clearly.
Durable Design: Built to withstand challenging environments.
Power Supply: DC 12V–28V, 500mA (power ripple < 20mV)
Sensor Capacity: DC 48V 1A, AC 250V 1A
Operating Temperature: -10°C to 55°C (no condensation)
Pressure Range: 90–110 kPa
Protection Level: Ex d IIC T6 Gb (explosion-proof)
Dimensions: 145mm x 200mm x 90mm
Connection Type: M20×1.5 fixed installation (3 × φ8)
Weight: 1.5 kg (including enclosure)
Industrial settings
Laboratories
Medical facilities
Confined spaces
Certified for explosion-proof operation, ensuring safe use in hazardous areas.
The High Precision Oxygen Detection Alarm stands out for its reliability and user-friendly design. It’s an essential tool for anyone needing to monitor oxygen levels accurately, providing peace of mind in various settings. With robust construction and precise technology, you can trust this alarm to keep your environment safe.
The device must be stored and operated within -10°C to 55°C with no condensation and at atmospheric pressure between 90-110 kPa. The explosion-proof rating Ex d IIC T6 Gb requires certified installation and electrical connections within the specified voltage and current limits.
- Temperature and Humidity: Avoid condensation by operating in environments within -10°C to 55°C and ensuring no moisture ingress.
- Power Supply: Use a DC power source between 12V and 28V with ripple less than 20mV to prevent damage to the sensor electronics.
- Explosion-Proof Compliance: The device must be installed only in certified hazardous locations according to the Ex d IIC T6 Gb protection level.
- Connection Integrity: Secure the M20×1.5 fixed cable gland properly to maintain the explosion-proof enclosure seal.
- Pressure Limits: Operate only within the atmospheric pressure range of 90 to 110 kPa to ensure accurate oxygen readings.
Mount the device securely in the intended location and connect the power supply within the specified voltage range. Verify the LCD display activates and the device begins normal operation.
Required Equipment: Wrench, Multimeter
- Inspect the Device
Inspect the device enclosure and cable gland for any visible damage before installation. - Mount the Device
Mount the device securely using the M20×1.5 fixed installation and ensure the enclosure is properly sealed. - Connect Power Supply
Connect the DC power supply, verifying polarity and voltage within 12-28V with ripple less than 20mV. - Power On and Verify
Power on the device and confirm that the LCD display shows the current oxygen level with no error messages.
How does the Ex d IIC T6 Gb explosion-proof rating limit the oxygen monitor's use in environments with gas groups other than IIC or with higher temperature classes?
The Ex d IIC T6 Gb rating confines the device to flammable gas atmospheres of group IIC (e.g., hydrogen, acetylene) and restricts maximum surface temperature to 85°C (T6), making it unsuitable for gas groups IIA or IIB or for environments requiring higher temperature classes like T5 or T4. This rating is explicitly stated in the protection level specification.
What are the wiring and installation constraints imposed by the M20×1.5 fixed connection and the specified power supply ripple requirements?
The device requires M20×1.5 cable glands with 3 × φ8 entries, and the DC power supply must have ripple under 20mV to prevent false readings. This limits integration to filtered power supplies and specific cable sizes, as detailed in the connection type and power supply specifications.
What operating conditions must be maintained to avoid condensation and ensure the oxygen monitor's accuracy in humid environments?
The device must be operated at temperatures between -10°C and 55°C with no condensation, and within a pressure range of 90–110 kPa. Condensation can occur if the temperature drops below the dew point, so the monitor should be placed in a dry, climate-controlled location, as stated in the operating temperature and pressure range specifications.
The Atomfair High Precision Oxygen Detection Alarm offers explosion-proof certification (Ex d IIC T6 Gb) and real-time LCD monitoring, but requires a stable DC power supply (12-28V, 500mA, ripple <20mV) and is limited to environments within -10°C to 55°C without condensation.
Positive
- Explosion-proof rating for hazardous areas: Ex d IIC T6 Gb certification ensures safe operation in explosive environments, making it suitable for industrial and confined space applications.
- Real-time LCD display for immediate readings: The LCD digital display provides clear real-time oxygen levels and alerts, enabling quick visual assessment of environmental conditions.
Trade-offs
- Stable DC power supply requirement: The device requires a DC 12V–28V, 500mA supply with power ripple below 20mV, which may necessitate additional power conditioning or a regulated source in many installations.
- Limited operating temperature and humidity range: Operation is restricted to -10°C to 55°C with no condensation, limiting deployment in humid or extreme-temperature environments without additional climate control.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).



