I&C Pro-Instrument Tools

iOS 26 crash fixed. Compare Siemens T3000 and Emerson Ovation from one configuration, with an automatic warning when they disagree. New: Speed Probe & Teeth.

I&C Pro is a comprehensive calculator toolkit built by a working power plant commissioning engineer, for instrumentation and control (I&C) engineers who work at the plant. No spreadsheets or reference tables — every calculation you need is one tap away.

■ 16 calculators across 7 categories

[Loop & Signal]

• mA → Set Value: Convert 4-20 mA current signal to process value
• Set Value → mA: Convert process value to 4-20 mA signal
• Square Root Converter: Linear ↔ √ mA linearization

[Flow & Pressure]

• DP ⇌ SCALE Converter: Between differential pressure and flow rate
• O₂ Compensation: Compensate gas value by reference O₂
• Gas Unit Converter: ppm, mg/m³, %, mg/L

[Temperature]

• Thermocouple Converter: NIST-based T/C mV↔temperature (K, J, T, E, and more)
• RTD Pt100 Calculator: Resistance↔temperature for Pt-385/Pt-392 (2/3-wire compensation)

[Tank & Silo]

• Tank Level Calculator: Cylindrical tank volume and level, drawn to the entered proportions
• Silo Level Calculator: Cylinder+cone silo capacity, mass and estimated run time

[Instrument Calibration]

• Pressure Visualizer: Interactive absolute / gauge / vacuum / atmospheric relationship, live comparison across 11 pressure units
• Chemical Tank Level Tx Verification: 22 water-treatment chemical presets (HCl, H₂SO₄, NaOH, N₂H₄, NH₄OH and more), temperature correction, transmitter verification and diagnosis
• Level Compensator: Heater and drum level density compensation (new)

[Vibration]

• Vibration Converter: Displacement-Velocity-Acceleration for rotating machinery (Bently Nevada mils/ips ↔ ISO mm/s, RMS/0-p/p-p)
• Disp Probe Gap & Simulation: Displacement probe gap calibration, VMS signal simulator, sensor library, DXD gap setting

[Utility]

• Percentage Calculator: Percentage, increase and decrease

■ Level Compensator — the heart of this release

Saturated water and steam change density sharply with pressure, so a DP level transmitter does not read the true level without density compensation. Level Compensator computes the difference.

• Two DCS algorithms: Siemens T3000 LEVEL block (ID 605) and Emerson Ovation LEVELCOMP
• Four vessels: HP heater, LP heater, flash tank, HRSG steam drum — each with its own schematic
• Built on IAPWS-IF97 steam tables (Regions 1/2/4)
• Enter DP, mA or a sight-glass reading — the signal chain resolves either direction
• Gauge-glass density correction, shown as a reference for how low the glass reads
• DCS zero offset, alarm setpoints, and display end-stop handling
• Per-project configuration profiles

Verified against real plant operating data — from 1 bar to 200 bar, across two DCS vendors, including a full day of 2880 samples.

■ Key features

• Fully offline — works inside plant networks with no connectivity
• Live calculation — results update as you type
• Guidance panel on every calculator — purpose, inputs, formula and field tips
• 10 languages — English, 한국어, Tiếng Việt, Bahasa Indonesia, 中文(简体), العربية, Español, Français, Português, Русский
• Project profiles — save and recall setups on the configuration-heavy calculators
• Grounded in real field work — used on site by the engineer who wrote it

■ Who it is for

• Power plant commissioning engineers
• Instrumentation and control staff at refineries and chemical plants
• Instrument maintenance and calibration technicians
• Nuclear, thermal, combined-cycle and solar generation professionals
• I&C students and instructors

Built by a field engineer, for field engineers.

• Speed Probe & Teeth: compares the rpm that different tooth counts produce from the same pulses — diagnoses redundant probes that share constants and fail together.