GDS 100 Single-Point Gas Alarm Control Unit GD-100-PEL-230, Cat 16

The GDS 100 GD-100-PEL-230 is a fixed, single-point gas alarm control unit for monitoring flammable, oxygen, and toxic gas concentrations in commercial, industrial, and process environments. It supports internal or remote sensors and is suitable for boiler plant rooms, swimming pools, water treatment facilities, HVAC control systems, manufacturing plants, and hazardous-area gas monitoring installations.

Key Features

• Monitoring for combustible gas, oxygen, toxic gas, or compatible 4–20 mA sensor inputs
• Wall- or panel-mount installation
• Two alarm stages with low, high, and fault relays
• Digital 3½-digit display
• 4–20 mA analogue input/output and 1–5 V output
• Internal or remote sensor compatibility
• IP65 protection
• Compact housing with low power consumption
• Extensive fault detection circuitry
• Adjustable alarm delays of 10 seconds, 30 seconds, or 10 minutes
• Audible alarm rated at 68 dB at 1 m
• System function test switch and alarm relay inhibit during calibration

Technical Specifications

• Measuring ranges: Combustible gas in LEL, % volume, or ppm; toxic gas in ppm or % volume; oxygen in % volume for depletion or enrichment
• Sensor inputs: Three-wire bridge-type catalytic detector in mV; 4–20 mA electrochemical or infrared sensor
• Sensor cable: Three-core, 1.5 mm² screened cable up to 1.5 km
• Indicators: Green power LED, red low/high alarm LEDs, amber fault LED, flashing alarm LEDs during system test
• Alarm relays: Low, high, and fault alarm relays; SPCO contacts; normally de-energized or energized options
• Relay contacts: 5 A at 230 V AC
• Auxiliary output: 24 V DC at 100 mA maximum for non-inductive auxiliary equipment
• Alarm settings: Fully adjustable digitally from zero to full scale
• Power consumption: 4 W at full alarm
• Operating temperature: -10 to +50 °C
• Storage temperature: -10 to +65 °C
• Protection rating: IP65
• Field terminals: 2.5 mm screw type
• Cable entry: Top, bottom, sides, and rear
• Dimensions: 200 mm L × 120 mm H × 58 mm D
• Weight: 0.8 kg

The GDS 100 gas monitoring controller is designed for reliable fixed gas detection in industrial safety, environmental monitoring, water treatment, and process control applications. The delivered unit includes the GDS 100 single-point gas alarm and a certificate of conformity.