inst @instechi

Joined September 2014

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inst @instechi

6 months ago

Loop Test for Analog Inputs & Outputs | DCS, PLC, HART, Alarms | Instrumentation Interview youtu.be/wbHfQx_vYVk

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inst @instechi

7 months ago

25 Intrinsic Safety Interview Questions You MUST Know | Intrinsic Safety Explained Simply! youtu.be/GeIr2mDF4JA

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inst @instechi

7 months ago

What are the common troubleshooting causes for wrong readings in a pressure transmitter (PT) youtu.be/0MzVjPIe0m8

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inst @instechi

11 months ago

What β (beta) is β = d / D where d = orifice bore (inside diameter), D = pipe internal diameter. #Detail_Engineering

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SIL is a measure of the reliability and performance of a safety instrumented function (SIF) in reducing risk. It is defined by IEC 61508 / IEC 61511 standards and indicates the probability of failure on demand (PFD) #Detail_Engineering

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inst @instechi

12 months ago

What If It Fails Wake Frequency? Shorten thermowell length Use a tapered or stepped thermowell Change mounting type (e.g., from flanged to welded) Use a velocity collar Select higher strength material #Detail_Engineering

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inst @instechi

12 months ago

A Y-strainer is a critical protection device for instrumentation and control components, filtering out debris before it damages sensitive parts like valves, meters, and transmitters. #Detail_Engineering

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inst @instechi

12 months ago

Standard Capillary Lengths Most manufacturers (Yokogawa, Emerson, ABB) offer: 1 m, 1.5 m, 2 m, 3 m, 5 m, 10 m as standard lengths Shorter capillary = better response time For balanced DP measurement, capillaries should be same length and routing #Detail_Engineering

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inst @instechi

12 months ago

Purpose of Capillary Tubes Used in: DP/pressure transmitters with remote diaphragm seals Situations where transmitter cannot be mounted close to the process (e.g., high temp, vibration, hygienic applications) #Detail_Engineering

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inst @instechi

a year ago

SIL (Safety Integrity Level) is a measure of risk reduction provided by a Safety Instrumented Function (SIF) in a Safety Instrumented System (SIS). #Detail_Engineering

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inst @instechi

a year ago

Repeatability refers to the ability of an instrument to produce the same output when the same input is applied under identical conditions over multiple measurements. #Detail_Engineering #Repeatability

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inst @instechi

a year ago

Rangeability = Maximum Range / Minimum Range It indicates how wide the measurement span or control range of an instrument is.#Detail_Engineering

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inst @instechi

a year ago

Wake frequency is used in thermowell design to check if fluid flow will cause vibrations that could damage the thermowell. #Detail_Engineering

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inst @instechi

a year ago

Wake frequency is a key parameter used in thermowell design to evaluate the effect of vortex-induced vibrations on a thermowell inserted in a flowing fluid. #Detail_Engineering

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inst @instechi

a year ago

Wake frequency is a key parameter used in thermowell design to evaluate the effect of vortex-induced vibrations on a thermowell inserted in a flowing fluid #DE

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inst @instechi

a year ago

The SAT validates the system's functionality in its final installed environment, often including interfaces with other plant systems. #Detail_Engineering

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inst @instechi

a year ago

The I/O list is essential for allocating I/O cards, designing wiring, and configuring the control system database by detailing every signal point. #Detail_Engineering

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inst @instechi

a year ago

The fail-safe position (Fail-Open, Fail-Closed, or Fail-Last) is the predetermined state the valve will go to upon a loss of its operating energy source, crucial for process safety. #Detail_Engineering

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inst @instechi

a year ago

Proper nozzle selection and ensuring a clear path for the radar beam, free from internal tank obstructions, are critical to prevent false echoes and ensure a strong, clear signal return from the liquid surface. #Detail_Engineering

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inst @instechi

a year ago

The URL is the maximum pressure value that the transmitter can be calibrated to measure within its specified accuracy, representing its design limit for measurement. #Detail_Engineering