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
Summary of Element Symbols
Parameter Display

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.

Power	K3FL-W[][]
Reactive power	K3FL-Q[][]
Power factor	K3FL-C[][]
Frequency	K3FL-F[][]
Phase	K3FL-P[][]
Load cell	K3FK-G/GS
Non-linear signal	K3FK-X

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Summary of Element Symbols

Element	Symbol		Details
Element	Denotation in product catalogs	Denotation by JIS	Details
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.
Diode
Photocoupler
AC power source
DC power source
NPN transistor
PNP transistor
Zener diode