The temperature transmitter is a device which converts various temperature signals into analog signals like 4-20mA, 0-10VDC,  Temperature transmitters are available in all different shapes and sizes, depending on the application and environment they are expected to operate. To name a few, they are DIN rail mounted temperature transmitters, also known as Rail temperature transmitters,  field mounted temprature transmitters, Hockey puck temperature transmitters.       Here at Maxwell, we offer all types of temperature transmitters, the most popular one would be standard version without isolation and some smart temperature transmitters like HART protocol temperature transmitter, RS-485 modbus Temperature transmitters.

The accuracy of a temperature transmitter is THE key aspects to look into, as with many instrumentation transmitter, a temperature transmitter needs to be adjusted or calibrated. So the current output of 4-20mA represents the temperature range of the process variable being measured, for example, a process variable temperature range of zero degree Celsius to 100 degree Celsius will produce a current range of 4 to 20 mA.In every calibration scenario, a sensor is replaced by a device that can simulate the output of the sensor over the entire process variable temperature range.  For a thermocouple, the sensor is replaced by a device that produces a range of millivolts. For an RTD sensors, the sensor is replaced by a device that produces a range of resistances. Devices produces resistances such as decade box,  today ,we’ve got signal reference calibrators to generate various reference signals for RTD and thermocouples which makes the calibration for temperature transmitters ...

Selecting correct temperature transmitters could be quite challenging from time to time, there are a lot of factors needs to be take into consideration, but first and foremost is to make sure that the measurement accuracy and to convert a temperature sensor’s low-level (ohm or mV) signal to a standard 4-20mA current signal that can be readily accepted by a monitoring and control system, such as a DCS or PLC The evolving technology has made the temperature transmitter reliable, affordable,  below are the few things should be taken into consideration when choose the correct temperature transmitter. 1. Back of Panel or Local Installation Perhaps the most important consideration when specifying a temperature transmitter is the environment in which it will be installed. If the distance between the sensor measurement and the control room is relatively short and free of plant electrical "noise", temperature transmitters can be inexpensively installed in the control room, with senso...

HART 7 is more than just a wireless protocol, our HART protocol temperature transmtiter TT-217 is HART 7 product, you can configure it by using our PC software or you can configure it by using standard HART communicator, the HART 7 standard applies to the full range of measurement, control, and automation systems products based on the HART Communication Protocol – whether wired or wireless. The WirelessHART capability is getting the most attention, but HART 7 provides many new capabilities beneficial to industry users in both wired and wireless products. Examples include: 1) Report by Exception—enables devices to push information to the control or asset management system without the system having to poll the device with a standard HART command. If there is a process or device status change, the device will automatically advise you.2) Time-Stamped Data—a valuable tool that adds a time stamp to process data readings sent to the host system which is helpful in evaluating...

Head-mount temperature transmitter is a device installed directly in the connection head of a temperature sensors, temperature sensor typically will be thermocouple or RTDs, the key feature of temperature transmitter is to convert small and raw signal from the sensor into analog signal like 4-20mA, the transmitter has various options such as isolated type,  Hart version,  Modbus RS-485 compatible version, below is an image on how it looks like and the way it is installed inside the connection head In many applications, the master device which receive the temperature signal often located at central control room or far away from the filed where the sensor installed, if the extension cable had been used, the signal will be affected by electrial noise and signal will suffer significant attenuation over long cable runs, therefore , by converting the weak signal into 4-20mA or other digital signal will minimizes the negative effects and saves cost too. as the extension cable is muc...

Below are some of key factor you shall consider while choosing a correct transmitter for your application 1)The input of the transmitter, if you are end user and looking for a cost down version solution, you might want go with the transmitter with a fixed input such as type K thermocouple or PT100, in this case, we as factory can preset the input and range of you, the transmitter will be installed right way after you get it from us, no extra programming is needed, saves time and efforts for you.  If you are stockiest looking to build up some stocks in your disposal, then our universal input transmitter is an ideal choose. Transmitter compatible with both TC and RTd input, and programmable via PC and android device.   2)Output is another key factor to consider, in many cases, 4-20mA output will be the choice for output, but some of customer will need 0-10VDC output too, we can offer both, our TT-210 is 4-20mA output version, and TT-500 is 0-10Vdc output version   3)Some o...