Diffusion Type Gas Monitor DA-50 | DA-50-EO

Advanced Gas Monitoring Solutions: DA-50 vs. DA-50-EO

DA-50 is a versatile gas detector that safeguards industrial spaces by detecting combustible and toxic gas leaks, ensuring advanced accident prevention. It converts digital signals into 4-20mA standard current outputs for seamless integration with external devices such as PLC, DDC, and recorders, facilitating the creation of a comprehensive gas monitoring system. The DA-50 features RS-485 communication signals, gas leakage alarm relay contacts, DC 4-20mA standard outputs for long-range signal transmission (up to 2500m), and RS-485 communication signals for extended reach (up to 1000m).

Key Features:

Digital Process: Equipped with built-in microprocessors, offering advanced intelligent functions for precise and efficient gas detection.
Polycarbonate Housing: Corrosion-resistant and waterproof, ideal for detecting corrosive gases.
Self Diagnosis: Automatically identifies sensor malfunctions and triggers a 2mA error signal.
LCD Display with Backlight: Real-time gas density display with backlight for easy reading in low-light conditions.
User-Programmable Menu: Customize calibration density and detection range for tailored operations.
Multi Signal Output: Versatile output signals including DC 4-20mA, two-step relay contacts, and optional RS-485 for seamless device integration.
4-20mA Transmitter: Stable, long-range signal transmission up to 2.5km.
RS-485: Enables reliable, long-distance signal communication up to 1.2km.
Alarm Output: Features SPST two-step relay contacts (AL1/AL2).

These exceptional features ensure precise, efficient, and reliable gas detection for enhanced safety.

Technical Properties: DA-50

Detection Principle: NDIR (Nondispersive Infrared)
Gas Sampling: Diffusion
Target Gas: Refer to the list
Measurement Range: %LEL, PPM, %vol
Response Time: Within 30 seconds, 90% of Full Scale
Accuracy: ≤±2% of Full Scale
Sensor Calibration: Calibration with a switch
Sensor Parallax: Zero - ≤±1%LEL/6 Months, Span - ≤±1%LEL/6 Months
User Programmable: Calibration density, detection range
Input Power: DC 20V~30V (24V DC Normal) / 100mA (Max.)
Output Power: 4~20mA/Full Scale - 2.5km transmission
Communication: RS-485 - 1.2km transmission
Operating Temperature and Humidity: -20℃50℃, 590% RH (Non-Condensing)
Signal Wire: CVVS & CVVSB 1.5sq x 3 Wire - Shield Type
Alarm Release: Manual or Automatic
Mounting: Wall or Pipe Station
Housing: Poly Carbonate
Alarm Output: 2-step Relay Contact (AL1/AL2)

Technical Properties: DA-50-EO

Detection principle: NDIR (Nondispersive infrared)
Gas sampling: Diffusion
Target gas: Refer to the list
Measurement range: %LEL, PPM, %vol
Response time: Within 30sec, 90%/Full Scale
Accuracy: ≤±2%/Full Scale
Sensor calibration: Calibration with switch
Sensor parallax: Zero - ≤±1%LEL/6 Month, Span - ≤±1%LEL/6 Month
User programmable: Calibration density, detection range
Input power: DC 20V~30V (24V DC Normal) / 100mA (Max.)
Output power: 4~20mA/Full Scale - 2.5km transmission
Communication: RS-485 - 1.2km transmission
Operating temperature and humidity: -20℃50℃, 590% RH (Non-Condensing)
Signal wire: CVVS & CVVSB 1.5sq x 3 Wire - Shield Type
Alarm release: Manual or Automatic
Mounting: Wall or Pipe Station
Housing: Poly Carbonate
Alarm output: 2 step - Relay Contact (AL1/AL2)

These specifications provide a clear overview of the product's capabilities and features.

Differences between DA-50 and DA-50-EO:

DA-50:

Detects flammable and toxic gases leaking from industrial areas.
Integrates with external devices by converting the reliable digital signal into a 4-20 mA standard current output.
Provides relay contact outputs for RS-485 communication and gas leak alarm signals.
Achieves a maximum output signal transmission distance of 2500m.
Features include a polycarbonate housing and a backlit LCD display.

DA-50-EO:

Specially designed for industrial applications, such as gas producers, gas users, gas reservoirs, and gas by-producers.
Similar to the DA-50, it integrates digital signals with external devices by converting them into a 4-20 mA standard current output.
Offers RS-485 communication signaling, enabling a wider output signal transmission distance (maximum 1000m).
Includes features like a polycarbonate housing and a backlit LCD display.

While both devices meet industrial gas monitoring requirements, the DA-50-EO provides RS-485 communication signaling with an extended transmission distance and is intended for specific industrial applications.