Fluke ST120 - User Manual

September 2020
©2020 Fluke Corporation. All rights reserved.
Specifications are subject to change without notification.
All product names are trademarks of their respective companies.
ST120/ST120+
Socket Tester
Instructions
Introduction
Before you use the Fluke ST120/ST120+ Socket Tester (the Product), see Safety
Information.
Safety Information
A Warning identifies conditions and procedures that are dangerous to the user.
XW Warning
To prevent possible electrical shock, fire, or personal injury:
• Read all safety information before you use the Product.
• Do not alter the Product and use only as specified, or the protection supplied
by the Product can be compromised.
• Do not use the Product if it is altered or damaged.
• Carefully read all instructions.

Fluke ST120 Specifications

General

Category	Test Equipment
Model	ST120
Manufacturer	Fluke
Storage Temperature	-20 °C to +60 °C
Battery Type	2 x AAA
IP Rating	IP40
Type	Voltage Tester
Frequency Range	50 Hz to 60 Hz
Weight	Approximately 100 g
Safety Standards	IEC 61010-1
Voltage Thresholds	12 V, 50 V, 120 V, 230 V, 400 V, 690 V

Summary

Introduction

Safety Information

General Safety Precautions

Lists essential safety warnings and procedures to prevent electrical shock, fire, or injury.

Symbols

Symbol Definitions

Explains the various symbols used on the product and in the instructions.

Product Use

Using the Socket Tester

Step-by-step guide on how to correctly plug in and use the Fluke ST120+ Socket Tester.

GFCI Test

Testing a GFCI Outlet

Procedure for testing the functionality of a Ground Fault Circuit Interrupter (GFCI) outlet.

Beeper Functionality

ST120+ Beeper Operation

Details the switchable beeper feature for voltage indication on the ST120+ model.

Contact Information

Contacting Fluke

Provides contact details and website for Fluke Corporation for support and registration.

Limited Warranty

Warranty Terms

Outlines the limited warranty period and conditions for Fluke products.