Zero Suppression and Zero Elevation Calculations
This article provides information on Zero Suppression and Zero Elevation Calculations used in differential pressure level transmitter. What is Zero Suppression ? In some cases, the level transmitter has to be…
Open and Closed Tank Level Calculations
Open Vessel Level Calculation Open tank : Level Transmitter installed at HP Tapping Point In above example, transmitter installed exactly at HP tapping point i.e. at 0 % Level Calibration…
Closed Tank Remote Seal Capillary type DP Transmitter
AÂ remote seal capillary type dp transmitter which is mounted on a closed tank. distance between both flanges is 1835 mm and density of fluid in tank is 1.15, transmitter is…
Control Valves Leakage Classifications
Control valves are designed to throttle and not necessary to close 100%. A control valve's ability to shut off has to do with many factors as the type of valves…
Control Valve Cavitation and Flashing
Flashing is the first stage of cavitation. However, it is possible for flashing to occur by itself without cavitation occurring. Flashing occurs in liquid flows when some of the liquid…
Thermostat – Types, Working Principle, Advantages, Applications
A thermostat is a handy device that controls the temperature in various household items like refrigerators, air conditioners, and irons.
Laws of Thermocouples
The following empirically derived thermocouple laws, are useful to understand, diagnose and utilise thermocouples. a) Law of homogeneous circuits If two thermocouple junctions are at T1 and T2, then the thermal…
Ambient Temperature Effects on RTD
Ambient Temperature Effects on 3 Wire RTD If it is necessary to perform the temperature measurement, some distance away from where the RTD is installed, ambient temperature can have a detrimental effect on…
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Electronic Meters Questions & Answers
1. Explain what is the difference between an ammeter and a voltmeter? Ammeter is a low resistance indicating instrument while the voltmeter is a high resistance one. 2. Explain why…
