Technical tools
Tools for industrial work: instrumentation, control, calibration, fluids, gases, mechanics, electrical and conversions. Calculate, check and take the result to the field.
Six tools are free and need no sign-up: 4–20 mA calculator, residential cable sizing, unit converter, RPM and pulleys, flow × velocity × diameter and PPM ↔ mg/m³. The others are part of the subscription: each has a page with what it does and a worked example.
Calculator
4–20 mA
Current, percentage and engineering values.
One scale, all the values.
PID tuning
Which Kp, Ti and Td should go into the PLC?
Simple and advanced modes, live simulation, step test, IMC/Lambda and Ziegler-Nichols in the device convention.
See the toolSubscriptionDP level range
Which LRV and URV should go into the DP transmitter?
Open tank, dry leg, wet leg and hydrostatic probe, with an interactive tank and report.
See the toolSubscriptionPT100 calculator
How many ohms should I read at this temperature?
PT100, PT500 and PT1000; 2, 3 or 4 wires; IEC 60751 classes.
See the toolSubscriptionThermocouple calculator
How many mV match this temperature?
Eight types from NIST ITS-90, cold junction compensation and colour guide.
See the toolSubscriptionTemperature calibration sheet
How do I record this sensor calibration?
Configurable points, reference/indication pairs and a PDF field sheet.
See the toolSubscriptionPressure calibration sheet
How do I take the pressure points to the field?
Gauge, absolute or differential, with paired readings and PDF.
See the toolSubscriptionpH calibration sheet
How do I document buffers and readings?
Actual buffers, lot, expiry and solution temperature.
See the toolSubscriptionFlow calibration sheet
How do I compare the meter with the reference?
Master meter, volumetric or gravimetric, with supporting data.
See the toolSubscriptionWeighing instrument calibration sheet
How do I organise the weighing instrument tests?
Indication by load, repeatability and eccentricity.
See the toolSubscriptionOther industrial tools
Mechanics, fluids, gases, electrical and conversions for everyday plant work. Instrumentation remains our specialty.
Residential cable sizing
Which cable, breaker and RCD for each circuit of the house?
Whole house or one circuit based on Brazilian NBR 5410: loads, panels, breakers, RCDs, cables and the distribution tree, with a PDF.
Use for freeFreeIndustrial unit converter
What is this pressure in another unit?
Pressure, flow, temperature, power, torque, energy, density and viscosity, with a full table.
Use for freeFreeGas flow normalization
How many Nm³/h flow at these operating conditions?
Operating ↔ normal or standard, gauge or absolute pressure, Z factor and mass flow.
See the toolSubscriptionppm ↔ mg/m³ for gases
How many mg/m³ are these ppm?
Common gases with molar mass, temperature and pressure of the limit’s reference.
Use for freeFreeTank volume
How much product is in the tank at this level?
Vertical, horizontal or rectangular, elliptical, torispherical, hemispherical and conical heads, strapping table.
See the toolSubscriptionFlow × velocity × diameter
What pipe diameter suits this flow?
Velocity, flow or minimum diameter, schedule 40 and 80 pipes and usual velocity ranges.
Use for freeFreePipe pressure drop
How much pressure does the line use up?
Darcy-Weisbach and Colebrook, Reynolds, fittings by K and elevation.
See the toolSubscriptionIndustrial cable sizing
Which cable and breaker does this load need?
From the load and the distance: capacity, voltage drop, short circuit, motor starting and the breaker curve (NBR 5410).
See the toolSubscriptionRPM, pulleys and gear reduction
What speed comes out of this pulley?
Pulley speed and diameter, belt, torque and reducers in series.
Use for freeFreeFan and blower power
What motor does this fan need?
Shaft and motor power, air density from temperature and altitude, affinity laws.
See the toolSubscriptionBearing fault frequencies
At what frequency does the bearing fault show up?
BPFO, BPFI, BSF and FTF from the geometry, in Hz, CPM and orders, with harmonics.
See the toolSubscriptionUse it in the field, offline
Install the app on your home screen and download the tools to the device: then they open without signal. The free ones work for everyone; the subscription ones, until the end of the access confirmed at the last connection.
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