FBM241C

Overview

FBM241C: Discrete I/O module for contact sensors and output switching, providing robust field control and monitoring.

Contact Sensor Function

• Range (each channel): Contact open (off) or closed (on).

• Open-Circuit Voltage: 24 VDC ±15%.

• Short-Circuit Current: 2.5 mA (nominal).

• On-State Resistance: 1.0 kΩ (maximum).

• Off-State Resistance: 100 kΩ (minimum).

Output Switch with External Source

• Applied Voltage: 60 VDC (maximum).

• Load Current: 2.0 A (maximum).

• Off-State Leakage Current: 0.1 mA (maximum).

Loop Power Supply Protection

• Input Current Limitation: Limited to 2.5 mA.

• Output Resistor Limitation: 680 Ω (for outputs with internal power).

Environmental Specifications

• Operating Temperature:

• Compact FBM241/C: -20 to +60°C (-4 to +140°F).

• Termination Assembly - PA: -20 to +70°C (-4 to +158°F).

• Storage Temperature:

• Termination Assembly - PA: -40 to +70°C (-40 to +158°F).

• Relative Humidity: 5 to 95% (noncondensing).

• Altitude:

• Operating: -300 to +3,000 m (-1,000 to +10,000 ft).

• Storage: -300 to +12,000 m (-1,000 to +40,000 ft).

• Contamination: Suitable for Class G3 (Harsh) environments as per ISA Standard S71.04.

• Vibration: 0.75 g (5 to 500 Hz).

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