สถานที่กำเนิด:
สิงคโปร์
ได้รับการรับรอง:
ISO9001
หมายเลขรุ่น:
644
Industrial 644 Temperature Transmitter, 4–20mA Output, Precision Process Control
Details:
The Rosemount 644 Temperature Transmitter delivers reliable and accurate temperature measurement for a wide range of industrial applications. Designed for flexibility, it supports both head‑mount and DIN rail installations, providing seamless integration into existing systems. With a standard 4–20mA output and HART® communication, the 644 Temperature Transmitter ensures precise signal transmission, easy configuration, and advanced diagnostics. Its robust design guarantees long‑term stability and dependable performance, even in demanding process environments. Engineered for precision process control, the Rosemount 644 Temperature Transmitter helps optimize efficiency, safety, and productivity across industries.
| Parameter | Rosemount 248 (Basic) | Rosemount 644 (Mid‑range) | Rosemount 3144P (Advanced) |
|---|---|---|---|
| Output Signal | 4–20 mA (HART optional) | 4–20 mA + HART® | 4–20 mA + HART®, FOUNDATION Fieldbus, Profibus PA |
| Input Types | Single RTD or Thermocouple | Wide range: RTD (2‑, 3‑, 4‑wire), Thermocouple, mV, dual sensor option | Multiple RTDs, Thermocouples, mV, dual sensor with Hot Backup™ |
| Accuracy | ±0.25% of span | Up to ±0.1 °C or ±0.1% of span | ±0.04% of span (highest accuracy) |
| Diagnostics | Basic | Advanced: sensor drift alert, hot backup, thermocouple degradation, min/max tracking | Full advanced diagnostics, predictive maintenance, sensor matching |
| Mounting Options | Head‑mount only | Head‑mount or DIN rail | Field‑mount (explosion‑proof housing) |
| Power Supply | 12–42 VDC | 12–42 VDC | 12–42 VDC |
| Communication | HART (optional) | HART® 5/7 | HART®, FOUNDATION Fieldbus, Profibus PA |
| Certifications | Basic approvals | ATEX, FM, CSA, IECEx, SIL 2/3 (option) | ATEX, FM, CSA, IECEx, SIL 2/3 |
| Best For | Cost‑sensitive, simple monitoring (HVAC, food, light industry) | Mid‑range industrial processes needing flexibility, diagnostics, and modular mounting | Critical process industries (oil & gas, chemical, power, SIS |
Packing:
Certs:
Q1: What is the output signal of the Rosemount 644?
A1: The Rosemount 644 Temperature Transmitter provides a standard 4–20mA output with HART® communication for seamless integration into control systems.
Q2: What types of sensors can it support?
A2: It is compatible with a wide range of inputs, including RTDs (2‑, 3‑, 4‑wire), thermocouples (J, K, T, E, N, R, S, B), and millivolt signals.
Q3: What mounting options are available?
A3: The 644 is available in both head‑mount and DIN rail‑mount versions, offering flexibility for different installation needs.
Q4: How accurate is the Rosemount 644?
A4: It delivers measurement accuracy up to ±0.1 °C or ±0.1% of span, depending on the sensor type and range.
Q5: Can it be used in hazardous environments?
A5: Yes. The 644 is available with global certifications (ATEX, FM, CSA, IECEx) and can be installed in hazardous or safety‑critical areas.
Q6: How is the transmitter configured?
A6: Configuration can be done locally using a handheld Field Communicator or remotely via asset management software such as AMS.
Q7: What industries typically use the Rosemount 644?
A7: It is widely applied in oil & gas, chemical, power generation, water treatment, food & beverage, and general industrial automation.
Q8: What are the advantages compared to entry‑level models?
A8: Compared to basic transmitters (e.g., Rosemount 248), the 644 offers higher accuracy, advanced diagnostics, dual sensor capability, and flexible mounting options.
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