Engineering Systems Atlas
iOS Universel / Education
Engineering Systems Atlas is the definitive visual reference for working engineers, technicians, students, and inspectors. Browse 477 professional-quality diagrams spanning 8 major engineering disciplines — all offline, all in one app.
WHAT IS INSIDE
477 illustrations organized into 8 engineering categories:
• Electrical Systems — power distribution, panel wiring, conduit layouts, load centers
• Fire Alarm Systems — initiating devices, notification appliances, control panels, wiring
• HVAC Systems — air handling, duct networks, chilled water, refrigerant circuits
• BIM and Construction — floor plans, riser diagrams, coordination views, LOD references
• Enterprise IT — network topology, structured cabling, data center layout, TIA-942
• PLC and Automation — ladder logic, I/O modules, PLC panels, field instrumentation
• SCADA and Controls — RTU diagrams, HMI screens, Modbus/DNP3 architecture, control loops
• RF and Radio Systems — antenna configurations, path diagrams, repeater systems, link diagrams
ENGINEERING CALCULATORS
Each category includes a dedicated field calculator:
• Voltage Drop — NEC K-factor conductor sizing with pass/fail at 3% threshold
• Battery Standby — NFPA 72 battery Ah sizing for fire alarm panels
• HVAC — CFM airflow, cooling load in BTU/h and tons, duct sizing at target FPM
• BIM Space — multi-room gross/net area, GFA, and volume in imperial or metric
• IT Network — PoE budget (802.3af/at/bt) and IPv4 subnet calculator with CIDR
• PLC I/O — module count, chassis sizing, and scan time estimation
• RF Link Budget — FSPL, path loss, link margin with fading environment presets
• SCADA Timing — Modbus RTU frame timing, T3.5 gap, and DNP3 poll cycle load
STANDARDS REFERENCE
Built-in searchable reference covering NFPA 72, NEC, ASHRAE, ISO 19650, IEC 61131-3, IEC 62443, TIA-942, and ITU/FCC standards — filtered by engineering domain.
KEY FEATURES
• Swipeable full-screen gallery — page through every diagram in a category
• Pinch-to-zoom — inspect fine detail on any illustration
• Favorites — star and collect your most-used diagrams
• Works fully offline — no internet connection required
• iPhone and iPad — optimized for all screen sizes and orientations
Whether you are reviewing a design, studying for a certification, or troubleshooting a system in the field, Engineering Systems Illustrated puts 477 reference diagrams and professional engineering tools in your pocket.
