Weilian provides various reliable and solid temperature transmitters, which can convert input signals from temperature measuring equipment (such as RTD temperature sensors and thermocouples) into digital or analog output signals. Make sure you have the right product for your particular application.
Temperature transmitter is a basic component in process industry. These devices convert input signals from various temperature sensors (such as resistance thermometers, thermocouples and potentiometers) into standardized analog or digital output signals.
Depending on the output signal, temperature transmitters may be suitable for direct connection to evaluation instruments with voltage or current inputs, such as programmable logic controllers (PLC) or analog/digital (AD) conversion cards. Using analog outputs, such as 0... 10V and 4... 20 mA, the actual measured value is represented by the output of the specified range in the temperature transmitter. For example, if your temperature transmitter ranges from 0 ° C to 500 ° C and your sensor measures a temperature of 250 ° C, the output of a 4... 20 mA transmitter will be 12 mA. You can view the correlation by using the midpoint of the temperature and mA variables.
Various output signals are related to certain industries and applications. The following is a brief overview:
Analog output of temperature transmitter
0... 10 V output signals are common in electrical engineering, heating, air conditioning, ventilation, and refrigeration because they are easily integrated into evaluation instruments. Weilian provides various temperature transmitters with output voltage signals.
4... 20 mA is the main output signal in process control, machine manufacturing and factory construction; Many industries have adopted this standard for current loop communication. Verene has a broad portfolio of 4... 20 mA temperature transmitters, depending on the sensor type.
Digital output of temperature transmitter
The HART (Highway Addressable Remote Sensor) protocol is a combination of analog and digital communications. The simplest explanation is that it uses the existing 4... 20mA instrument and provides additional digital communication, which makes it the most common digital communication method for temperature transmitters. The Maintained T32 temperature transmitter uses the HART protocol to provide high-precision, current isolation and excellent electromagnetic impact (EMI) protection.
Our temperature measurement experts can help you decide whether to use analog or digital instruments for your application.