New Schneider Foxboro FBM203 RH914SV PLC Interface Module 8 Input Isolated 1-Day

Same day, 1-Day shipping

30-Day Warranty.

The FBM203/b/c/d Platinum/Nickel/Copper RTD Input Modules contain eight resistance temperature detector (RTD) input channels.

 Each input channel of the FBM203/b/c modules accepts a 2- or 3-wire RTD sensor input, within a 0 to 320 ohm (FBM203), 0 to 640 ohm (FBM203b), or 0 to 30 ohm (FBM203c) resistance range. Each input channel of the FBM203d accepts a 4-wire RTD sensor input, within a 0 to 320 ohm resistance range. Each analog input is galvanically isolated from other channels and ground. The modules perform the signal conversion required to interface the electrical input signals from the field sensors to the optionally redundant fieldbus. The FBM203/b/c/d modules execute an analog input application program, which provides conversion time (on a per module basis) and configurable options for Rate of Change Limits.

Input Channels Eight resistance temperature detector (RTD) input channels. Each channel is isolated and independent.

Input Range (Each Channel) • FBM203/203D: 0 to 320 ohms. 320 ohms equals 64000 counts. Minimum over range value is 327.675 ohms at a count of 65535.

• FBM203B: 0 to 640 ohms. 640 ohms equals 64000 counts. Minimum over range value is 655.35 ohms at a count of 65535.

• FBM203C: 0 to 30 ohms. 30 ohms equals 64000 counts. Minimum over range value is 30.72 ohms at a count of 65535.

Sensor Current • FBM203/203D: 0.19 mA DC nominal

• FBM203B: 0.19 mA DC nominal

• FBM203C: 0.54 mA DC nominal

Lead Resistance • FBM203/FBM203B: 50 ohms maximum each lead. Any imbalance in extension leads will decrease accuracy.

• FBM203C: 10 ohms maximum each lead. Any imbalance in extension leads will decrease accuracy.

• FBM203D: 50 ohms maximum. Any imbalance in extension leads will not affect accuracy.

PSS 41H-2S203, Rev A 7

FBM203/b/c/d Platinum/Nickel/Copper RTD Input Modules Functional Specifications

Input Channels (8) • Analog Accuracy (Includes Linearity):

◦ FBM203/d: ±0.03% of span

◦ FBM203b: ±0.03% of span

◦ FBM203c: ±0.1% of span

• Accuracy Temperature Coefficient: ±50 ppm/ºC

• Input Signal A/D Conversion: Each channel performs its own A/D signal conversion, using an independent sigmadelta conversion technique.

• Integration Period: Software configurable

• Common Mode Rejection: >125 db at 50 or 60 Hz

• Normal Mode Rejection: >95 db at 50 or 60 Hz

Typical Resistance

Temperature Sensors

Platinum (DIN), Platinum (SAMA), Platinum (IEC), or Nickel (SAMA)

• FBM203/203D:

◦ Platinum: 100 ohms nominal at 0°C

◦ Nickel: 235 ohms nominal at 0°C

• FBM203B:

◦ Platinum: 200 ohms nominal at 0°C

◦ Nickel: 470 ohms nominal at 0°C

• FBM203C: ◦ Copper:

10 ohms nominal at 25°C