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Introduction
Before you use the Fluke ST120/ST120+ Socket Tester (the Product), see
Information.
Safety Information
A Warning identifies conditions and procedures that are dangerous to the user.
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.
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+
Warning
XW
Socket Tester
Instructions
Safety
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Summary of Contents for Fluke ST120
- Page 1 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. Warning To prevent possible electrical shock, fire, or personal injury: •...
- Page 2 • Do not use the Product if it operates incorrectly. • Do not touch voltages >30 V ac rms, 42 V ac peak, or 60 V dc. • Use this Product indoors only. • Examine the case before you use the Product. Look for cracks or missing plastic.
- Page 3 GFCI using its test and reset buttons. The GFCI button test function demonstrates proper operation. • On the ST120+, the beeper only makes a sound if voltage is present and the beeper is turned on. Do not rely on the beeper to indicate the presence of voltage.
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Page 4: Product Use
For best results, unplug all appliances and equipment on the circuit under test. Plug the Product into the socket and note which indicators light. To determine the wiring, see the diagram on the ST120+ shown for reference in Figure 1. -
Page 5: Contact Fluke
Product. Consult an electrician to determine the problem. Beeper (ST120+ only) The ST120+ includes a switchable beeper that emits a tone when voltage is present on the Product and the beeper is switched on. To switch off the beeper, slide the beeper switch to the left position. -
Page 6: Limited Warranty And Limitation Of Liability
LIMITED WARRANTY AND LIMITATION OF LIABILITY This Fluke product will be free from defects in material and workmanship for two years from the date of purchase. This warranty does not cover fuses, disposable batteries, or damage from accident, neglect, misuse, alteration, contamination, or abnormal conditions of operation or handling.