Rosemount 644 Transmitter
Display:LCD Display
Model:644HANAQ4
Model:644RANAC4Q4
Output: HART 4-20 mA
Country Of Origin:Singapore
Product Introduction
Rosemount 644 Transmitter is a high precision industrial temperature sensor. This transmitter can convert the temperature signal into a standard signal output, so that it can be easily connected to the automation system such as PLC or DCS, making the factory control more stable and reliable. It have high measurement accuracy, fast reaction speed, strong anti-interference ability, long service life and other advantages.
Parameters
Measuring range | -200~+1800 °C |
Output signal | 4~20 mA |
Voltage | 12 to 42 V DC |
Accuracy | ±0.1%, ±0.2% |
Stability | 0.1% |
Operating temperature range | -40 ~ +85 ℃ |
Material | Aluminum/stainless steel |
Installation | 1/2" NPT, M20×1.5 |
Communication protocol | HART or FOUNDATION Fieldbus |
Other functions | self-diagnosis, self-testing, etc. |
Product Functions
1. High precision measurement: with high precision measurement range, can reach the accuracy value of ±0.1%.
2. A variety of output signals: can output 4-20 mA signals, HART protocol digital signals and other signals.
3. Safe and reliable: Support overload protection and short circuit protection, and with protection level IP67 protection performance.
4. Fast response: with extremely fast response time, millisecond level response measurement can be achieved.
5. Diversified applications: widely used in petrochemical, chemical, food, medicine and health and other fields.
6. Easy installation: Different kinds of installation can be selected, including insert installation, screw installation and clip installation.
7. Programmable parameters: Support programmable parameters and field correction to meet the requirements of different application scenarios.
The role of Rosemount 644 Transmitter is to convert the temperature values measured by the temperature sensor into a standard electrical output, usually a 4-20mA current output. This electrical signal can be transmitted to a control system or other device for monitoring, controlling and regulating temperature. The 644 temperature transmitter has the characteristics of high precision, good stability and high reliability.
Installation Precautions And Daily Maintenance Measures
1. Pay attention to ensure the vertical and levelness during installation to avoid external impact and vibration.
2. Check whether the input and output interfaces of the temperature transmitter are correctly connected to ensure the accuracy of signal transmission.
3. Regularly check whether the surface of the temperature transmitter is clean, and remove dust and dirt.
4. Pay attention to check the working state of the temperature transmitter, and check and adjust it every once in a while.
5. If the temperature transmitter is not used for a long time, it should be inspected and maintained regularly to avoid dust accumulation and oxidation of the internal components.
6. In the process of use, avoid using the temperature transmitter in high temperature, strong electromagnetic field and outdoor environment, so as to avoid affecting its working effect.
7. In case of abnormal situation, it should stop the machine in time for inspection and processing to ensure the safety and normal operation of the system.
Rosemount 644 transmitter is widely used in petrochemical, chemical, electric power, heat treatment, metallurgy and other industrial fields due to its high precision, high stability and multi-function.
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