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Lead Contents

Digital Panel Indicators

Digital Panel Meters perform digital processing on or conversion and display of voltages, currents, other analog signals, and pulse signals. They can also compare input values to set values, transfer data, and perform other functions.

Introduction Features
Principles Classifications
Engineering Data Further Information
Explanation of Terms Troubleshooting

Related Contents

Primary Contents

Measuring Other Forms of Signals, Sensor Signals, and Non-linear Signals

To measure anything related to electrical output, such as power, reactive power, power factor, frequency or phase, any signals from sensors, or any non-linear signals, install a power transducer or a signal converter to convert DC voltage into DC current.

Reactive powerK3FL-Q[][]
Power factorK3FL-C[][]
Load cellK3FK-G/GS
Non-linear signalK3FK-X

Summary of Element Symbols

Denotation in
product catalogs
Denotation by JIS
NO contact
Contacts are open when the relay is inactive.
NC contact
Contacts are closed when relay is inactive.
Double-throw contact
Transfer contacts (also called double-throw contacts)
control two circuits, one normally open contact and one
normally closed contact with a common terminal.
AC power source
DC power source
NPN transistor
PNP transistor
Zener diode

Parameter Display

The following symbols are used to represent the characters for parameter names on a Digital Panel Indicator.