The Honeywell 05701-A-0302 is a single-channel gas detection controller that is part of the Honeywell System 57 family of gas detection products. It is designed to monitor a single gas hazard and provide alarm outputs if the gas concentration exceeds preset alarm levels.

Parameters:

• Gas Type: Various gas types available, including carbon monoxide (CO), hydrogen sulfide (H2S), nitrogen dioxide (NO2), oxygen (O2), methane (CH4), and propane (C3H8)
• Detection Range: Dependent on gas type, typically 0-250 ppm for CO, 0-50 ppm for H2S, 0-10 ppm for NO2, 0-25% vol. for O2, 0-100% LEL for CH4 and C3H8
• Alarm Levels: Two configurable alarm levels (Alarm A and Alarm B)
• Output Relays: Two DPDT output relays with 5A @ 250Vac or 5A @ 30Vdc switching capacity
• Communication: 4-20mA analog output for gas concentration
• Power Supply: 24 VDC or 120 VAC
• Power Consumption: Approximately 15 W
• Operating Temperature: -40°C to +50°C (-40°F to +122°F)
• Storage Temperature: -40°C to +70°C (-40°F to +158°F)
• Humidity: 5% to 95% RH non-condensing
• Vibration: 0.5 g RMS, 5 to 500 Hz
• Shock: 5 g, 22 ms half-sine pulse
• EMC: Meets IEC 61000-4-2, IEC 61000-4-3, and IEC 61000-4-6 standards
• Safety: Meets UL 61010-1, CSA C22.2 No. 61010-1, FCC part 15, ICES-003 issue 4, and ISO 9001-2008 certifications

Specifications:

• Single-Channel Gas Detection Controller: Monitors a single gas hazard and provides alarm outputs
• Catalytic or Electrochemical Sensor: Utilizes a catalytic or electrochemical sensor for reliable gas detection
• Two-Stage Alarm System: Provides two configurable alarm levels for early warning and critical event notification
• DPDT Output Relays: Offers versatile control capabilities for activating alarms, ventilation systems, or other safety devices
• 4-20mA Analog Output: Enables continuous monitoring and data logging of gas concentrations
• Rugged Construction: Withstands harsh environments and extreme temperatures
• Safety Certifications: Meets industry safety standards for hazardous environments

Dimensions:

• Height: 140 mm (5.51 in)
• Width: 170 mm (6.69 in)
• Depth: 64 mm (2.52 in)

Weight:

• Approximately 1.2 kg (2.65 lb)

• 

  05701-A-0302

Series:

• Honeywell System 57

Features:

• Reliable gas detection: Utilizes proven sensor technology for accurate and dependable gas detection
• Two-stage alarm system: Provides early warning and critical event notification to prevent hazardous situations
• Versatile output relays: Enables control of alarms, ventilation systems, and other safety devices
• Continuous monitoring: Offers 4-20mA analog output for real-time gas concentration monitoring
• Rugged construction: Withstands harsh environments and extreme temperatures
• Safety certifications: Meets industry safety standards for hazardous environments

Function:

The Honeywell 05701-A-0302 single-channel gas detection controller is a crucial component of gas detection systems in various industrial and commercial settings. It effectively monitors a single gas hazard and triggers alarms when gas concentrations exceed preset levels, safeguarding personnel and preventing potential hazards.

The controller’s catalytic or electrochemical sensor ensures reliable gas detection, accurately identifying the presence of the target gas. Its two-stage alarm system provides early warning (Alarm A) and critical event notification (Alarm B), enabling timely intervention and evacuation procedures.

DPDT output relays offer versatility in controlling alarms, ventilation systems, and other safety devices, ensuring prompt response to potential gas hazards. The 4-20mA analog output facilitates continuous monitoring of gas concentrations, allowing for data logging and trend analysis.

The controller’s rugged construction withstands harsh environments and extreme temperatures, making it suitable for various industrial applications. Its compliance