Instrumentation & Signals
Field Troubleshooting
When production stops and everyone's watching, you don't need theory—you need a system.
Standing in front of broken equipment at 2 AM isn't the time for textbooks. This 320-page field guide delivers systematic methods that work when the pressure's on. No guessing. No throwing parts at problems. Just logical troubleshooting that works every time.
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What's Covered
Discrete I/O
Six-step troubleshooting path, PNP/NPN problems, card vs field issues
Analog Signals (4-20 mA)
Zero current paths, noisy signals, EMI and ground loops, scaling problems
Temperature Sensors
RTD wiring types, thermocouple type mismatch, IR emissivity, thermowell installation
Pressure, Flow & Level
Impulse lines, transmitter types, diaphragm seals, float switches to radar sensors
Proximity & Photoelectric
Detection distance, material correction factors, mounting mistakes that kill sensors
Cable & Wiring
Half-split method, wiggle tests, shield grounding, continuity procedures
The SITVD Framework
An anti-panic protocol that gets you to root cause whether you're troubleshooting discrete outputs, analog loops, or temperature sensors reading wrong. Eight real case files. Seven decision tree appendices you can photocopy and laminate for field use. Quick reference tables designed for 2 AM problem-solving.
Who This Is For
The Series
Instrumentation & Signals
March 2026
PLCs & Controls
Coming Soon
Communications & Networking
Coming Soon
Stop Guessing
Start troubleshooting systematically.
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