Gardner Bender GUSB-3300 Operating Instructions

IMPORTANT: RECEIVING INSTRUCTIONS
all components for shipping damage. If you find damage, notify the
carrier at once.
1. CAUTION
REFER TO THIS MANUAL BEFORE USING THIS TESTER.
2. SPECIFICATIONS:
Operating Range: 3-6 V AC/DC
Indicators: Visual Only
USB Type: 3.0-3.1 Type A
Cleaning: Remove grease and grime with clean, dry cloth.
3. OPERATION:
To check phone/device wall chargers:
1. Plug the USB tester into the USB port being tested
2. View the indicator on the USB tester and match with the chart shown below and on the USB tester
LED Color
Not Lit
Green
Red
Amber
4. NOTICE:
1. USB tester may not illuminate at less than 3 V AC/DC
2. Amber color is created by illuminating both the red and green LEDs simultaneously. In some conditions the individual
red and green colors may be visible
3. Not a comprehensive diagnostic instrument, but a simple instrument to detect the presence of voltage (V) and correct
polarity
4. Refer all indicated problems to a qualified electrician
One Year Warranty limited solely to repair or replacement; no warranty of merchantability or fitness for a particular
purpose. Product is warrantied to be free of defects in materials and workmanship for the normal life of the product. In
no event shall Gardner Bender be liable for incidental or consequential damage.
800.822.9220 • Milwaukee, WI 53209 • gardnerbender.com
OPERATING INSTRUCTIONS
Visually inspect Shipping damage is NOT covered by warranty. The carrier
is responsible for all repair or replacement costs resulting from
damage in shipment.
Range
0 to 2 V AC/DC
3 to 6 VDC
-3 to -6 VDC
3 to 6 VAC
USB Multimeter
Model GUSB-3300
Indication
Dead port
Port Ok
Reversed Polarity
AC Voltage Present
GAR_TL_073_0118_GUSB-3300