Overview

The Honeywell FGM-6300S is a Fixed Gas Detector, designed for detecting flammable, toxic, and oxygen gas hazards. It features a universal transmitter with a 4-20mA current output and optional RS485 Modbus communication.

Electrical Parameters

• Input Voltage: 16-32 VDC (24VDC nominal)
• Max Power Consumption: Electrochemical Cells: 5.5W; Catalytic or NDIR: 7.5W
• Current Output: 4-20mA (source type), configurable
• Relay Outputs: 3 x 2A@30VDC, selectable NO/NC, energised/non-latch
• Communication: RS485, Modbus RTU, optional Bluetooth (pending)

Construction

• Transmitter Housing Material: Aluminum Alloy or 316 Stainless Steel
• Sensor Housing Material: 316 Stainless Steel
• Weight:
  • Aluminum Alloy: 3.0 kg
  • Stainless Steel: 5.0 kg
• Mounting: Integral mounting plate with 4 mounting holes for M8 bolts
• Cable Entries: 2 x 3/4'' NPT cable entries, 1 x M25 sensor entry

Environmental Protection

• IP Rating:
  • Toxic and Oxygen: IP66/67
  • CAT/NDIR: IP66
• Operating Temperature: -40°C to +70°C
• Operating Humidity:
  • CAT/NDIR: 0-95% RH (Non-condensing)
  • Toxic/Oxygen: 15%-95% RH (Non-condensing)
• Operating Pressure: 90-110 kPa
• Storage Conditions: -20°C to +50°C, 45-75% RH (Non-condensing), clean air

Certification

• ATEX:
  • CAT/NDIR: II 2G Ex db IIC T6 Gb Ta = -40°C to +65°C
  • Toxic/Oxygen: II 2G Ex db ia IIC T6 Gb Ta = -20°C to +55°C
• IECEx:
  • CAT/NDIR: Ex db IIC T6 Gb Ta = -40°C to +65°C
  • Toxic/Oxygen: Ex db ia IIC T6 Gb Ta = -20°C to +55°C
• China:
  • CAT/NDIR: Ex d IIC T6 Gb Ex tD A21 IP66 T85°C
  • Toxic/Oxygen: Ex d ia IIC T6 Gb Ex tD A21 IP66 T85°C

Performance

• Repeatability: <2%
• Response Time: Dependent on sensor
• Surge Immunity: Optional surge protection device, complies with GB/T17626.5-2008/IEC61000-4-5:2005

Environmental Compliance

• EMC: EN50270:2015, IEC61000-4-5
• SIL Assessment: IEC61508 SIL2