Takar Web demo
Calculations and field tools run fully in the browser. Anything that depends on the device’s sensors and camera is only in the app.
ARSTEMA · Indonesia
Engineering referencefor workin the field.
Operating principles, testing, and fault tracing for commercial laundry, water treatment, utilities, electrical systems, and dishwashing. Written by field practitioners, in Indonesian.
Academy, Lab, and Glossary are open to everyone
Why ARSTEMA exists
Built from problems that actually happen in the field.
ARSTEMA’s material comes from work in commercial laundry, chemical dosing, water treatment, utilities, and dishwashing. Every chapter, simulation, and term is written to be used on a real problem: understand its cause, test it safely, then decide on the fix.
Learn
From units and quantities to motor control and water quality.
Academy chapters are grouped by discipline: fundamentals first, then applied fields. Read each shelf in order, or jump straight to the chapter you need. Almost every chapter ends with exercises and worked solutions. Chapters are currently in Indonesian.
01Mathematics: Analysis and Rigorous Foundations02Units & Mathematics03Physics04Buildings & Facilities05Electrical & Control06Mechanical & Mechatronics07Chemistry08Biology & Microbiology09Materials10Fluids & Thermal11Water & Water Treatment12Utilities13Automotive & Electric Mobility14Safety15Data & Measurement16Systems, Diagrams & Diagnosis17Computational18Laundry19Dishwashing20Commercial Kitchens21Chemical Dispensing22Fieldwork & Handover
- Start with the first chapterQuantities, functions, and how to read relationships
- Star–DeltaThree-phase motor starting: circuit, sequence, calculations
- ChemistryChemical functional classes and cross-brand equivalents
- Curated videos and lecturesLectures and demonstrations, placed with the concept they cover
- See all chaptersSearch by term, discipline, and level
Lab
Test the circuit in the simulator before you wire the panel.
Wire up cables and components on the wiring board, open components layer by layer in 3D Anatomy, then run the simulations that accompany the Academy.
Troubleshoot
Pin down the cause before you replace a part.
The same fault can have several causes. The sequence below is covered in the Academy chapters on symptoms and root causes, then applied to laundry and water-quality cases.
01SymptomRecord what you see, when it appears, and what changed before it.02HypothesesList several possible causes before choosing one.03Discriminating testChoose a check whose result can rule one hypothesis out against the others.04CauseFix the proven cause, then check that the symptom is really gone.
Glossary
Engineering terms you can look up mid-job.
The ARSTEMA glossary is open without an account, and its definitions are currently in Indonesian. Terms covered in the Academy can also be searched straight from the chapter browser.
Tools
Takar: calculations and field tools in one app.
The web demo opens now, no sign-up needed. The Android app is still in testing, and the Play Store listing is being prepared. What the demo leaves out is listed below, so you don’t discover it mid-job.
Trust comes from clarity
Product status, stated as it is.
Both products can be tried on the web. Android distribution and the Google Play listing won’t be called finished until internal testing and the public documents are ready.
Interface images are taken from the running productEach demo’s limits are written down, not left for you to discoverPrivacy policies, data security, and account deletion are open for anyone to read
Read our transparency page Start from your work
Try it yourself before you trust it.
Open a chapter, run its simulation, and judge for yourself whether the material meets the needs of your work. If something is wrong or unclear, tell us on the feedback page.