MIDAS-T-004 | Honeywell Analytics NH₃ Infrared Gas Monitor 24VDC

Honeywell · Industrial Automation & Electrical

Description  The Honeywell Analytics MIDAS-T-004 is a single-zone ammonia gas monitor designed for continuous detection of NH₃ concentrations from 9 to 100 ppm. Operating on 24 VDC, it uses single-pass infrared non-dispersive sensing technology to provide accurate measurement and stable performance. The MIDAS-T-004 supports remote sampling up to 100 ft and integrates with control systems via relay outputs, 4–20 mA signal, and Modbus/TCP communication.   Technical Specifications  Condition New/Never Used Surplus Brand Honeywell Analytics Category Gas Detection Part Number MIDAS-T-004 Subcategory Fixed Gas Monitor Supply Voltage 24 VDC (-15% to +10%) @ 208 mA Gas Detected Ammonia (NH₃) Measurement Range 9–100 ppm Sensing Technology Single-pass Infrared Non-Dispersive (NDIR) Repeatability ±5% of measured value Linearity ±2% of measured value Response Time 2–30 seconds (tube length dependent) Warm-Up Time <10 minutes Signal Outputs 3 alarm relays; 4–20 mA @ 250 Ω Communication Protocol Modbus/TCP Operating Temperature 32° to 104°F (0° to 40°C) Operating Humidity 15% to 90% RH non-condensing Enclosure Rating NEMA 1 Dimensions 5.9 in H x 12.6 in W x 6 in D Weight 1.8 lb (0.8 kg)     Information About MIDAS-T-004 The MIDAS-T-004 is a fixed gas detection module engineered for monitoring ammonia in industrial and commercial environments. It features a single-pass NDIR sensor for selective gas detection with ±2% linearity and ±5% repeatability across its measurement range. The unit includes three configurable alarm relays, a system fault relay, and a 4–20 mA analog output for integration with building management or safety systems. Designed for single-point monitoring, it includes a 10 ft sampling and exhaust tube and supports extended sampling distances up to 100 ft. Key Features: Ammonia Detection (NH₃): Monitors concentrations from 9–100 ppm using NDIR technology. Single-Pass Infrared Sensor: Provides stable and selective gas measurement. Multiple Alarm Outputs: Three alarm relays (1A @ 30 VDC / 0.5A @ 125 VAC) plus fault relay. 4–20 mA Output: Enables integration with PLCs and building management systems. Modbus/TCP Communication: Supports network-based monitoring and diagnostics. Digital Display: 4-digit screen for real-time and peak gas level indication. Remote Sampling Capability: 10 ft tube included; supports up to 100 ft sampling distance. Visual Alarm Indication: Provides local visual notification of alarm conditions. The MIDAS-T-004 delivers the reliability and precision required for fixed ammonia gas detection and safety monitoring systems.

Brand: Honeywell · Category: Industrial Automation & Electrical

Key features

• Ammonia Detection (NH₃): Monitors concentrations from 9–100 ppm using NDIR technology.
• Single-Pass Infrared Sensor: Provides stable and selective gas measurement.
• Multiple Alarm Outputs: Three alarm relays (1A @ 30 VDC / 0.5A @ 125 VAC) plus fault relay.
• 4–20 mA Output: Enables integration with PLCs and building management systems.
• Modbus/TCP Communication: Supports network-based monitoring and diagnostics.
• Digital Display: 4-digit screen for real-time and peak gas level indication.
• Remote Sampling Capability: 10 ft tube included; supports up to 100 ft sampling distance.
• Visual Alarm Indication: Provides local visual notification of alarm conditions.

Specifications

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