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VFD Diagnostics

Motor Health Analysis

Universal Unit Converter

Quick Ref: Boiling: 212°F / 100°C

Wire Voltage Drop

Drop: -- Volts

4-20mA Signal Converter

Process Level: --%

Gearbox Ratio & Sprocket Speed

Gear Ratio: -- : 1
Final Tool Speed: -- RPM

Belt Length Calculator

Est. Belt Length: --"

Bearing Lube & RPM Logic

Vol: --g | Interval: --hrs

Thermal Expansion

Growth: --"

Hydraulic Force & Hacks

Force: -- lbs

Pump Cavitation Diagnostic

Air Leak Cost Calculator

Waste: $-- / Year

Fluid Velocity & GPM

Velocity: -- ft/sec
Rule: Suction < 5 fps | Discharge < 15 fps

Cylinder Speed vs Flow

Required: -- GPM

Saturated Steam Reference

PSITemp (°F)Latent Heat
0212°970 BTU/lb
50298°912 BTU/lb
100338°881 BTU/lb
150366°857 BTU/lb

NH3 Pressure-Temp (Saturated)

Saturated Temp: --°F

IIAR Ammonia Labeling

Marker ColorService Type
OrangeHigh Pressure (HPL / HPR)
BlueLow Pressure (LRS / LSS)
YellowIntermediate (IP)
RedRelief Line (V)

Ammonia Leak Response

ANSI/ASME A13.1 Pipe Color Code

Color LabelFluid Content
Yellow / BlackFlammables & Oxidizers
Green / WhitePotable / Cooling Water
Blue / WhiteCompressed Air
Red / WhiteFire Quenching Fluids
Orange / BlackToxic or Corrosive Fluids
Purple / WhiteReclaimed / Process Water

NEMA Enclosure Ratings

TypeProtection Level
NEMA 1General Purpose (Indoor, Dust)
NEMA 3ROutdoor (Rain, Sleet, Ice)
NEMA 4XWatertight, Dust-tight, Corrosion Resistant
NEMA 12Industrial (Dust, Dripping non-corrosive)

Wire Ampacity (75°C Copper)

AWGMax AmpsTypical Breaker
1415A15A
1220A20A
1030A30A
850A40-50A
665A60A

SAE Torque & Bolt ID

SizeG5 DryG8 DryTap Drill
1/4-20812#7
3/8-1630455/16"
1/2-137511027/64"
5/8-1115022017/32"

Bearing Fit Tolerances

Shaft DiamPress Fit (min)Slip Fit (max)
< 1"+0.0001"+0.0005"
1" - 2"+0.0002"+0.0008"
2" - 4"+0.0005"+0.0012"
Rule: Shaft should be larger than ID for Press.

Metric Tap & Drill

SizePitchDrill (mm)
M61.005.0mm
M81.256.8mm
M101.508.5mm
M121.7510.3mm

Motor FLA & Frames (460V)

HPFLAFrame
5 HP7.6A184T
25 HP34A284T
50 HP65A326T

PLC Status Light "Rosetta Stone"

Brand / LEDStateMeaning / Action
AB: OK Flashing Red Major recoverable fault (Empty/Cleared memory).
AB: OK Solid Red Hardware failure. Cycle power or replace CPU.
Siemens: ERROR Flashing Red Major error. Check diagnostic buffer (Laptop required).
Siemens: MAINT Solid Amber Maintenance demanded (e.g., Memory card full/Error).
AD: FAULT Solid Red Watchdog timer error or internal parity error.
Note: Green "RUN" always indicates the logic scan is active.

Stainless vs Carbon ID

Test304/316 SSCarbon Steel
MagnetNon-Magnetic*Strong Pull
GrinderShort, Orange SparksLong, White Sparks
AcidNo ReactionImmediate Darkening
*304 can become slightly magnetic when cold-worked.

Pipe Schedule

NPSOD (In)Sch 40Sch 80
1"1.315"0.133"0.179"
2"2.375"0.154"0.218"
4"4.500"0.237"0.337"

Shift Handover Report

PM Checklist Builder

Part Scavenge / Donor Log

LOTO Assistant