Description
The FieldPoint module identified by part number 777518-122 is a specialized RTD Input Module, designated as model FP-RTD-122. This module is designed to accurately read temperatures using Resistance Temperature Detectors (RTDs) by converting the resistive value into a digital signal. It supports an 8-channel configuration, making it versatile for various applications that require multiple temperature readings.
The module features a 16-Bit Delta-sigma ADC (Analog-to-Digital Converter), ensuring precision in temperature readings. It operates with a 3-wire RTD configuration and provides an excitation current of 0.25 mA to the RTDs. This specific design is noted for its ability to reject 50/60 Hz noise, thanks to its built-in rejection filters, thus enhancing the accuracy of temperature measurements in environments with electrical noise.
Compatibility is a key aspect of the FP-RTD-122, as it is designed to work with 100 Ω and 1,000 Ω platinum RTDs, as well as 400 Ω and 4000 Ω resistance values, making it adaptable to a wide range of temperature sensing requirements. Moreover, the module ensures signal integrity and safety through optical bank isolation, which separates the input channels from each other and the system electronically, thereby preventing potential damage from voltage surges.
Despite its advanced features, it is important to note that this module is marked as “Not for New Design”, indicating that it may not be recommended for use in new projects or systems due to potential discontinuation or lack of support in the future. However, it still remains a valuable tool for existing systems that require reliable temperature measurements.
For ease of monitoring, the FP-RTD-122 is equipped with two green POWER and READY LEDs, which provide visual indicators of the module’s operational status. This feature allows for quick and easy verification of the module’s power status and readiness for temperature measurement tasks.
| Specification | Detail |
|---|---|
| Part Number | 777518-122 |
| Category | FieldPoint |
| Model | FP-RTD-122 |
| Description | RTD Input Module, 8-Channel, 16-Bit |
| Design Note | Not for New Design |
| Configuration | 3-wire RTD |
| Excitation Current | 0.25 mA |
| Channel Count | 8 |
| ADC Type | Delta-sigma |
| Rejection Filters | 50/60 Hz |
| Input Compatibility | 100 Ω and 1,000 Ω platinum RTDs, 400 Ω and 4000 Ω resistance |
| Isolation | Optical bank isolation |
| Indicators | Two green POWER and READY LEDs |
Question 1: What is the part number of the FP-RTD-122?
Answer 1: 777518-122
Question 2: How many channels does the FP-RTD-122 support?
Answer 2: 8 channels
Question 3: What type of ADC does the FP-RTD-122 use?
Answer 3: 16-Bit Delta-sigma ADC
Question 4: Is the FP-RTD-122 recommended for new designs?
Answer 4: No, it’s not recommended for new designs.
Question 5: What type of isolation does FP-RTD-122 offer?
Answer 5: Optical bank isolation
