Description
The FieldPoint module with the part number 185078D-01 (777518-122), known as the FP-RTD-122, is an RTD Input Module designed for specific applications. It features 8 channels and utilizes a 16-Bit resolution for precise data acquisition. However, it’s important to note that this model is marked as “Not for New Design,” indicating it may be approaching the end of its product lifecycle or has been superseded by newer models.
This module is configured for a 3-Wire connection, which is commonly used for RTD sensors to compensate for wire resistance, ensuring more accurate temperature measurements. The module can excite the RTD sensors with a 0.25 mA current, suitable for most standard RTD applications.
Regarding compatibility, the FP-RTD-122 is designed to work with 100 Ω and 1,000 Ω platinum RTDs, covering a broad range of industrial RTD sensors. For direct resistance measurements, it can handle ranges of 400 Ω and 4,000 Ω, providing flexibility for various sensing and control tasks.
The module employs a Delta-sigma ADC (Analog to Digital Converter) type, known for its high precision and noise rejection capabilities, essential for accurate temperature measurement and control applications. Additionally, it includes 50/60 Hz rejection filters, further enhancing its ability to deliver reliable data by minimizing the impact of electrical noise that often plagues industrial environments.
For ensuring safety and integrity in measurement, the FP-RTD-122 is equipped with Optical Bank Isolation. This feature isolates the sensor input from the rest of the system, protecting against electrical interference and potential damage.
User feedback and diagnostics are provided through two green LED indicators, labeled POWER and READY. These indicators offer immediate visual confirmation of the module’s operational status, ensuring that users can quickly verify proper function at a glance.
| Specification | Detail |
|---|---|
| Part Number | 185078D-01 (777518-122) |
| Category | FieldPoint |
| Model | FP-RTD-122 |
| Description | RTD Input Module, 8-Channel, 16-Bit-Not for New Design |
| Configuration | 3-Wire |
| Channels | 8 |
| Excitation Current | 0.25 mA |
| Input Ranges for RTDs | 100 Ω and 1,000 Ω platinum |
| Direct Measurement Ranges for Resistance | 400 Ω and 4000 Ω |
| ADC Type | Delta-sigma |
| Rejection Filters | 50/60 Hz |
| Isolation | Optical Bank Isolation |
| LED Indicators | Two green (POWER and READY) |
Question 1: What part number is the FP-RTD-122?
Answer 1: 185078D-01 (777518-122).
Question 2: How many channels does the FP-RTD-122 have?
Answer 2: It has 8 channels.
Question 3: What RTD types does the FP-RTD-122 support?
Answer 3: 100 & 1,000 Ω platinum RTDs.
Question 4: What isolation type does the FP-RTD-122 feature?
Answer 4: Optical Bank Isolation.
Question 5: Does the FP-RTD-122 indicate its operational status?
Answer 5: Yes, with two green LED indicators.
