Rosemount 248 Temperature Transmitter Bipolar mV, Linear Resistance, Potentiometer, RTD, TC Input, 42.4 V dc

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Rosemount 644 Temperature Transmitter mV, ohm, RTD, Thermocouple Input, 42.4 V dc


Temperature transmitters are known to function as interface between a control device and temperature sensor. These can also be seen as electrical instruments which interface a temperature gauge. Some examples are thermocouple transmitter, thermistor, and RTD. Another way to view a temperature transmitter is that it is a device which ensures the signals produced by temperature sensors are converted into standard instrumentation. This usually represents process variable temperature not just measured but also controlled.

You have come to the best place where everything about temperature transmitters will be explained in clear details for your understanding. The goal is to enable you know how this device can function. Check out some details about a temperature transmitter including how you purchase one from us today.

### How Does A Thermocouple Transmitter Work?

When it comes to how thermocouple transmitters can function, it has been discovered that many people are confused. Such lack of knowledge will only affect your decisions while trying to purchase one. These devices have been built or designed to have the thermocouple or RTD signals converted to output signals. It should be noted that the output signals usually range from 4 - 20mA. Signal from such transmitter is sent over to a controller which tends to determine the next line of action. It is also responsible for generating the right amount of output signals. Controllers can be either DCS or PLC.

Temperature transmitters are known to filter, amplify, and isolate noise. After that, a standardized output is going to be sent over to the controller. These devices have become very popular in recent years. Such is due to some factors like:

- Location and control are indicated
- Costly wire extension isn't required
- Better noise resistance especially over distances that are long
- Output signal is compatible with various devices
- And more

We will be discussing more on temperature transmitter types. There are two types used during process control. These are thermocouple and RTD (Resistance Temperature Detector). Thermocouple are known to produce voltage change and usually have 2 wires. RTD on the other hand, produce resistant change alongside temperature change. An RTD comes with 2,3, or more leads (wires). In most cases, you will find temperature transmitters which work with either RTD or thermocouple.

### Applications of PT100 Transmitters

Having said the above, we will be looking at PT100 transmitter which is one of the examples of a transmitter. When it comes to the process industry, it can be said that these temperature transmitters are common. The first thing to note about them is that they are a form of RTD transmitter. Also, their resistance is around 320F (100 ohms at 0°C). Whenever the temperature is higher, its resistance is going to be dependent on the particular sensor version. 385 version seems to be the most common among others.

Normally, our PT100 transmitter has the following features:

- EAC Approval
- Tested vibration
- LED indication (over range)
- Compatible or ideal for PT100 sensors
- programmable temperature range

These temperature transmitters can be used in applications that are characterized by high vibration. Such could be industries like petrochemical, energy, power, refining and more. One of the reasons why you need to purchase from us is that our PT100 transmitters are known to provide high level of accuracy when used in these industries. Apart from that, the stability and repeatability they provide is excellent.

With our temperature transmitters, you will get access to sensors that are very accurate. They will definitely meet your expectations. Do you still have any question about these transmitters? If that is the case, don't hesitate to contact us today.



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Rosemount Temperature Transmitters

3 Products showing for Rosemount Temperature Transmitters

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