Worldwide Voltage & Frequency Values
The voltage and frequency of alternating current (AC) electricity used in homes varies from country to country throughout the world. Typically either 110-volt AC (110V) or 220-volt AC (220V) are…
Formula of AMP, KW, KVA, HP for AC and DC Voltages
Formula of AMP, KW, KVA, HP for AC and DC Voltages
What is a Coriolis Flow Meter?
Coriolis flow meter works by vibrating one or more tubes carrying flowing fluid, then measuring the frequency and phase to find mass flow rate.
How to Do Loop Checks During Plant Pre-Commissioning
Guide lines to be followed in Field during DCS Field Loop Checks (with P&ID) and step by step procedure to be followed during DCS Loop Checks.
How to Do Logic Checks During Plant Pre-Commissioning
Basic Guidelines to be followed during Logic Checks (Follow Cause & Effect, Control Narrative, P&ID and Latest Alarm & Trip Schedule): 1. Understand the Cause & Effect Matrix, if any…
7 OSI Layers of Communication
ISO/OSI Model The International Standards Organization (ISO) has determined a general architecture of network specifications in their DIS 7498 model (applicable to most any digital network). These network specifications were…
Surge Protection for the Fieldbus System
Definition The effects of a lightning strike, even at a distance of 500 m, endangers electronic/electric equipment. The main purpose of the surge protection barrier is to limit induced transient voltage…
Instrument Panel Cooling Efficiency Enhancement
The article describes a small modification to enhance the cooling efficiency of the instruments panel ,the results will give better performance and longer life of electronic components . Instrument Panel Cooling Many a times we…
Difference between HART and Foundation Fieldbus
HART and Foundation Fieldbus Technologies HART Devices using HART communication technology hit the market in the early 1980's and there are around 10 million HART devices in service throughout the…
Transmitter Calibration Procedure
In today’s environment of shrinking cost margins and increased regulations, maintaining properly calibrated equipment becomes ever important. Even the smallest inaccuracy in process measurements can cause a significant loss in…
