Conductivity Cell Constant of Conductivity Sensor
The conductivity cell constant of the conductivity sensor is a multiplier constant. The cell constant is multiplied by the measured current to calculate the electrical … Read more
Measure
Control Valve Cavitation and Flashing
This article describes cavitation and flashing in the control valve. Before understanding the phenomenon of cavitation and flashing, let us first understand the basic difference … Read more
Calibration Errors: Zero, Span, Linearity & Hysteresis
There are four types of calibration errors, namely zero,span,linearity and hysteresis. It is important to identify and correction of instrument calibration errors for accurate measurement … Read more
Light Dependent Resistor LDR- Type, Symbol, Construction, Working
Light dependent resistor LDR or photoresistor changes its resistance when light fall on it, thus it detects the presence of light. In this article, we … Read more
Annunciator Panel- Purpose, Working Principle, Applications
Annunciator Panel has a grouping of annunciator lights that indicates the status of the system or equipment. It is used in process industries, buildings and … Read more
Optical Pyrometer- Definition, Construction, Working
Definition: The optical pyrometer functions on the principle of matching the brightness of an object to the brightness of the filament. It is a non-contact … Read more
Rate Compensated Heat Detectors
Rate compensated heat detectors initiate an alarm when the surrounding air temperature reaches at a predefined level, irrespective of the rate of temperature rise. Heat … Read more
What are Linear Heat Detectors?
Linear heat detectors detect only heat. They do not detect smoke. On the other hand, a fire alarm system consists of detection devices that detect … Read more
4 Most Common Types of Temperature Sensors
The 4 Most Common Types of Temperature Sensors are NTC thermistors, RTDs, Thermocouples, and semiconductor-based sensors. These sensors for temperature are used for monitoring and … Read more
Rate of Rise Heat Detectors
Rate of rise heat detectors is a type of heat detector that responds when its element sense the increased temperature of thermal energy of a … Read more
