Model: VD7500LB
OPERATING INSTRUCTIONS
Gardner Bender - N85 W12545 Westbrook Crossing Menomonee Falls, WI USA 53051
Technical Support:
1-800-624-4320, press 2
Before Use:
READ ALL OPERATING INSTRUCTIONS BEFORE USE.
Use extreme caution when checking electrical circuits to avoid injury due to electric
shock. Gardner Bender assumes basic knowledge of electricity on the part of the user and is not responsible for any injury or damages due to
improper use of this tester.
OBSERVE AND FOLLOW
all standard industry safety rules and electrical codes. When necessary call a qualified
electrician to troubleshoot and repair the defective electrical circuit.
FEATURES
Non-contact AC voltage detection: 12V-600VAC
Adjustable detection sensitivity
Audible and visual indication
Tests fuse
Tests bulb
Retractable light bulb remover
STRUCTURE
1. Probe: Used to sense AC voltage
2. Sensitivity Knob: Used to adjust the detection sensitivity for AC voltage detection.
Rotate it forward to decrease the sensitivity, rotate
it backward to increase the sensitivity.
3. Bulb Remover: Used to remove bulb from Christmas light set.
4. Bulb Remover Control
Used to stretch out or draw back the bulb remover.
5. Function Switch: Used to select desired function as well as to turn on or off the
instrument. There are three positions for this switch:
ON/FUSE TEST - AC voltage detection and fuse test are enabled.
OFF - The instrument is turned off
BULB TEST - Bulb test is enabled
6. LED
7. Pocket Clip & Battery Cover: To remove the pocket clip & battery cover, press it with
thumb and slide it out.
8. Fuse/Bulb Tester: Used to test bulb or fuse.
OPERATION INSTRUCTION
Checking the Instrument
1.
Move the function switch to the "ON/FUSE TEST" position.
2.
Move the probe close to a known AC power source (such as a live outlet). If the instrument's built-in buzzer sounds and the LED flash red, the
instrument is good and can be used for detection.
Detecting AC Voltage
3.
Move the function switch to the "ON/FUSE TEST" position.
4.
Move the probe close to the wire or socket to be to be detected. When
the instrument detects AC voltage, the built-in buzzer will sound and
the LED will flash red.
Note:
Don't set the instrument's sensitivity too high. A higher sensitivity means a longer detection distance and a higher possibility of being
interfered by ambient interference source. It is recommended to set the sensitivity to the lowest level at the beginning of detection, and
then set it to a suitable level if necessary. This can help minimize the interference. If the sensitivity is set too high, the detector may give
false alarm because of interference resulted from interference source (such as an adjacent wire or device).
If the instrument's sensitivity is high, the built-in buzzer will sound briefly and the LED will light briefly when you just move the function
switch to the "ON/FUSE TEST" position. It is normal.
The instrument may give alarm when you move it close to an object with static electricity or an iron near alternating current.
