Design Calculators - Instrumentation

Smart Tools for Modern Instrumentation Engineers

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🌍 Among the world’s first free web platforms, this web application provides a comprehensive suite of professional-grade calculators meticulously designed for instrumentation engineers - whether working in industrial design, field operations, or pursuing academic studies. These tools are built to streamline your daily tasks, offering unparalleled efficiency and precision.

4-20 mA Signal Scaling Calculator

Converts raw current signal to engineering units (e.g. 0–100 °C)

RTD / Thermocouple Conversion Tool

Converts resistance (RTD) or millivolt (TC) to temperature and vice versa

Orifice Plate Flow Calculator

Calculates flow rate through an orifice based on DP and fluid parameters

DP Level Measurement Calculator

Determines tank level using differential pressure (open/closed tanks)

Hydrostatic Level Calculator

Converts pressure head into level for liquids

Pressure Drop Calculator (Impulse Tubing)

Computes pressure loss due to long impulse lines

PID Controller Tuning Calculator

Ziegler-Nichols / Cohen-Coon tuning for PI/PID controllers.

Loop Impedance & Voltage Drop Calculator

Calculates total loop resistance and voltage drop in 4–20 mA loops.

Instrument Rangeability & Span Calculator

Helps set up transmitters with suitable span & range.

Thermowell Wake Frequency Calculator

Validates mechanical stability per ASME PTC 19.3 standard.

Signal-to-Noise Ratio (SNR) Calculator

Assesses signal integrity in noisy environments.

Analog-to-Digital Resolution Calculator

Evaluates ADC resolution needed for a given input range.

RTD Wiring Lead Compensation Calculator

Calculates true temperature by compensating lead wire resistance.

Instrument Power Supply Load Calculator

Determines power source sizing based on connected field devices.

Control Valve Cv Calculator

Calculates valve flow coefficient (Cv) for sizing control valves.

Capacitance Level Sensor Calculator

Used for tank level measurement based on dielectric properties.

Differential Pressure to Flow Conversion

Computes volumetric/mass flow using differential pressure devices.

pH Sensor Temperature Compensation

Adjusts pH readings with temperature correction.

Ex i Intrinsically Safe Loop Calculator

Validates voltage/current parameters for intrinsic safety compliance.

Baud Rate / Cycle Time Calculator

Calculates communication timing for field buses like Modbus, Profibus.

Unit Converter

Converts units for Pressure, Temperature, Flow, Conductivity, and more.

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