Yokogawa NFAI143-S50 Analog Input Module

FAQ

Q1: Does the NFAI143 module support HART communication?
A1: Yes, it supports HART protocol for integration with HART-enabled field devices.

Q2: Are the input channels of the NFAI143 isolated?
A2: Yes, all input channels are isolated from the system, with a 1500 V AC withstand voltage.

Q3: Can each channel be configured individually for 2-wire or 4-wire transmitters?
A3: Yes, each channel can be individually configured via a setting pin.

Q4: What is the input resistance when the module is powered off?
A4: The input resistance is 500 kΩ or more when powered off.

Q5: What are the power requirements for the module?
A5: It requires 5 V DC (230 mA) and 24 V DC (540 mA) power supplies.

Q6: What is the maximum allowable input current?
A6: The module can accept input currents up to 24 mA.

Q7: Is overcurrent protection included in the NFAI143?
A7: Yes, the module includes overcurrent protection to safeguard the inputs.

Q8: What is the measurement accuracy of the module?
A8: The accuracy is ±0.1% of full scale, suitable for precision monitoring.