Description
The FieldPoint FP-RTD-122 is an RTD Input Module characterized by its part number, 185197A-01 (777518-122). This module is specifically designed to cater to applications requiring precise temperature measurements. Notably, it is an 8-channel, 16-bit module, though it is important to note that it is not recommended for new designs.
Configuration-wise, the module supports a 3-wire RTD and Resistance setup, ensuring compatibility with a wide range of sensor types. A key feature of this module is its stable current source, offering a 0.25 mA excitation current for sensor excitation. This feature is critical for achieving accurate measurements.
An integrated microcontroller within the module scales measurements to specified temperature units – Celsius (°C), Fahrenheit (°F), or Kelvin (°K) – or to resistance values. This flexibility allows for easy integration into various systems without the need for external scaling tools.
The FP-RTD-122 boasts optical bank isolation, enhancing its reliability and safety by minimizing the risk of electrical interference between channels. Its input characteristics include a Delta-sigma ADC with 50/60 Hz rejection filters, ensuring high precision and minimal noise in measurements.
With input ranges of 100 and 1,000 Ω for RTDs, and 400 Ω and 4000 Ω for resistance measurements, the module can accommodate a broad spectrum of sensors, making it a versatile choice for a multitude of applications. The module comes equipped with 8 channels, facilitating the monitoring of multiple sensors simultaneously.
For ease of monitoring the module’s status, it includes two green POWER and READY LEDs. These indicators provide instant visual feedback on the module’s operational status, simplifying troubleshooting and maintenance processes.
| Specification | Details |
|---|---|
| Part Number | 185197A-01 (777518-122) |
| Category | FieldPoint |
| Model | FP-RTD-122 |
| Description | RTD Input Module, 8-Channel, 16-Bit-Not for New Design |
| Configuration | 3-wire RTD and Resistance |
| Sensor Excitation | Stable current source, 0.25 mA excitation current |
| Microcontroller | Integrated, scales measurements to specified temperature units (°C, °F, or °K) or resistance |
| Isolation | Optical bank isolation |
| Input Characteristics | Delta-sigma ADC, 50/60 Hz rejection filters |
| Input Ranges | 100 and 1,000 Ω for RTDs; 400 Ω and 4000 Ω for resistance measurements |
| Channels | 8 |
| Indicators | Two green POWER and READY LEDs |
Question 1: What is the part number of the FP-RTD-122?
Answer 1: 185197A-01 (777518-122)
Question 2: How many channels does the FP-RTD-122 have?
Answer 2: 8 channels
Question 3: What is the excitation current of the FP-RTD-122?
Answer 3: 0.25 mA
Question 4: Does the FP-RTD-122 support 3-wire RTDs?
Answer 4: Yes, it supports 3-wire RTDs.
Question 5: What type of isolation does the FP-RTD-122 feature?
Answer 5: Optical bank isolation


