Application Notes
Temperature

Isolation / Temperature / Pulse / Strain Gauge / Potentiometer / AC
Pneumatic / Function / Power Supply / Alarm / Power Mesurement
Trend & Log/Communication / Surge Protection / Other Topics

030009 What is a thermocouple?
[ HTML ] [ MS Word MS Word 112k ]
030010 What kind of thermocouples are used?
[ HTML ] [ MS Word MS Word 76k ]
030011 How should we choose a thermocouple?
[ HTML ] [ MS Word MS Word 80k ]
030012 What is cold junction compensation?
[ HTML ] [ MS Word MS Word 104k ]
030013 Why are extension wires used?
[ HTML ] [ MS Word MS Word 88k ]
030014 What is a thermocouple with a thermo-well?
[ HTML ] [ MS Word MS Word 116k ]
030015 How does M-System provide cold junction compensation in its thermocouple transmitter?
[ HTML ] [ MS Word MS Word 96k ]
030016 What is burn-out thermocouple?
[ HTML ] [ MS Word MS Word 80k ]
030017 We need to connect a recorder and a thermocouple transmitter in parallel with the extension wires from a thermocouple. Is there any problem in the connection?
[ HTML ] [ MS Word MS Word 136k ]
030018 How can we obtain a linearized signal from a thermocouple?
[ HTML ] [ MS Word MS Word 96k ]
030019 What precaution should we use when installing extension wire between a thermocouple and a thermocouple transmitter?
[ HTML ] [ MS Word MS Word 80k ]
030020 The distance between a thermocouple in the field and the control panel is as long as 100 meters (300 ft). Is there any way to eliminate the long extension wires?
[ HTML ] [ MS Word MS Word 80k ]
030021 Which thermocouple transmitter do you recommend to accurately measure temperature in such narrow ranges as 0 to 50°C (32 to 122°F)?
[ HTML ] [ MS Word MS Word 80k ]
030022 How can we display the maximum and the minimum temperatures measured with a thermocouple transmitter?
[ HTML ] [ MS Word MS Word 116k ]
030023 How can we generate alarm signals when the difference between two temperatures exceed the limit? We need alarms for the plus and the minus deviation, separately.
[ HTML ] [ MS Word MS Word 120k ]
030024 How can we generate alarm signals when a measured temperature is beyond the set point.
[ HTML ] [ MS Word MS Word 104k ]
030025 What is a process diagram of a typical temperature control system for a furnace?
[ HTML ] [ MS Word MS Word 88k ]
030026 How can we protect a thermocouple from lightning?
[ HTML ] [ MS Word MS Word 108k ]
031030 All M-System Thermocouple Input Temperature Transmitters are "married" to their respective plug-in bases and can not be indiscriminately moved from base to base.
[ HTML ] [ MS Word MS Word 72k ]
031031 Chelan Coutry P.U.D. (Public Utility District)
[ HTML ] [ MS Word MS Word 88k ]
031033 To manage a vinyl house efficiently, I want to monitor the room temperature as well as the temperature difference from the outside temperature. How can I realize the flowing two functions? A: indicating the room temperature. B: providing an alarm signal when the temperature difference exceeds a preset value. the temperature detection sensor is RTD.
[ HTML ] [ MS Word MS Word 112k ]
031034 We have a project to measure the temperature of a deep well about 1000 meters under the ground with Pt100 ohms, resistance temperature detector. Do you have any idea on this?
[ HTML ] [ MS Word MS Word 148k ]
031035 I am measuring motor temperature. An RTD is connected to the motor and I like to transmit the data to a PLC located off site over the Modbus communication. A PLC may be used to control the load to the motor or to shut down the motor as needed to prevent burnout.
[ HTML ] [ MS Word MS Word 128k ]
031036 Output Effect of Thermocouple Transmitter (M2XT)
[ HTML ] [ MS Word MS Word 128k ]
031037 Temperature control (type "J" thermocouple)
[ HTML ] [ MS Word MS Word 128k ]
032066 We are planning to measure temperature of an electric furnace with termocouplein our laboratory. Since we do a lot of experiments, we have to change thermocouple types and temperature ranges from time to time. How we can reduce our stock of transmitters to suit our purpose.
[ HTML ] [ MS Word MS Word 80k ]
032076 To monitor the temperature in incinerator, we are thinking of using a thermocouple sensor to send 4-20mA signals to control room. Meanwhile, we also need an alarm device at field in case the temperature goes out of range. What can you propose for this application?
[ HTML ] [ MS Word MS Word 110k ]
032081 We are looking for a differential RTD transmitter in order to measure a temperature difference between 2 rooms. And displaying it on indicator as voltage scaling, -5 to +5V DC.
We know M-System has a differential RTD transmitter, the DR/DRS but it can accept just 2-wire RTD signals. Does M-System have this kind of transmitter that can accept 3-wire RTD signals?
[ HTML ] [ MS Word MS Word 180k ]
032084 We work for an incineration plant.
Using a heat exchanger, waste heat is reused for an air conditioning energy in the facility. How can we monitor the temperature difference between the hot air in and the cooled air out of a heat exchanger?
[ HTML ] [ MS Word MS Word 232k ]
032120 We have a test equipment on which two T/C sensors are attached. We’d like to convert the T/C signals into 4-20 mAdc and send it to a controller unit. The controller unit receives the 4-20 mA signal and controls the rotating speed of an air blower at the test equipment in order to control temperature.
Now we need to select one of the two T/C sensor signals each case by case. However, the controller unit doesn’t have signal switching function and then accept only one 4-20 mA signal. Does M-System have any suitable unit and solution?
[ HTML ] [ MS Word MS Word 128k ]
032139 We’d like to measure temperature difference between the inlet and outlet of a heat exchanger by using two T/C sensors. We want to load the inlet-outlet temperature differential with PLC’s DC input card. The PLC can provide 24V power excitation. We also want to display the temp. difference with an appropriate scaling at the field. Do you have any suitable device to meet the application?
[ HTML ] [ MS Word MS Word 220k ]
032147 2-Wire temperature sensor is used with a dispense gun’s heater which melts the Hot Melt Adhesive. We like to convert its 100 to 500 ohm special non-linear resistance to 4-20mA DC signal. I only know about a Pt100 ohm input type transmitter. Is there a field configurable transmitter which can accept a special resistance input?
[ HTML ] [ MS Word MS Word 100k ]


Isolation / Temperature / Pulse / Strain Gauge / Potentiometer / AC
Pneumatic / Function / Power Supply / Alarm / Power Mesurement
Trend & Log/Communication / Surge Protection / Other Topics
 
Copyright (C)2003-2017 M-System Co., Ltd. All rights reserved.