User’s Guide
AC VOLTAGE DETECTOR
Model DV30
Safety Precautions
1. Improper use of this meter can cause damage, shock, injury or death. Read this guide before use.
2. Secure any covers or battery doors before use.
3. Inspect the condition of the meter for any damage before use.
4. Remove the batteries from the meter if the meter is to be stored for long periods.
5. For Indoor use
International Safety Symbols
Refer to the user’s guide for information.
Hazardous voltages may be present
Double insulation
Operation
WARNING: Risk of Electrocution. Before use, always test the Detector on a known live circuit to
verify proper operation.
NOTE on RF Interference: RF signals in close proximity to the detector may cause the voltage light and
beeper to latch into a constant tone and light indication. Wait until the RF signal has disappeared before
proceeding with voltage detection.
1. Turn the On/Off-Sensitivity switch (2) clockwise to turn the unit on.
2. Set the Sensitivity adjustment (2) to the high (counterclockwise) position
3. If the detector begins to beep/flash (1), slowly reduce the sensitivity (clockwise) until the beep stops.
4. Move the detector voltage sensor (1) near the
conductor until the tip flashes and beeper sounds.
5. Slowly adjust the sensitivity (2) and reduce the
distance between the sensor and conductor to
pinpoint and identify the conductor.
Battery Replacement
1. Turn power OFF and release the end cap latch from the pocket clip and slide out the battery
compartment (3).
2. Replace the four LR44 batteries and replace the battery compartment.
Specifications
Voltage Sensitivity
Operating Temperature/Humidity
Storage Temperature
Relative Humidity
Operating Altitude
Safety
12V to 600VAC (50 to 500Hz)
14 to 122°F (-10°C to 50°C)
-4 to 140oF (-20 to 60oC)
<80%
7000 ft. (2000 meters) maximum.
This meter is intended for indoor use
4 LR44 batteries
Battery
Dimensions/Weight
IEC 1010
6.3x0.75x1” / 2oz
Category III 600V
Warranty
EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year
from date of shipment (a six month limited warranty applies on sensors and cables). If it should become necessary to return the
instrument for service during or beyond the warranty period, contact the Customer Service Department at (781) 890-7440 ext. 210
for authorization or visit our website at www.extech.com (click on ‘Contact Extech’ and go to ‘Service Department’ to request an
RA number). A Return Authorization (RA) number must be issued before any product is returned to Extech. The sender is
responsible for shipping charges, freight, insurance and proper packaging to prevent damage in transit. This warranty does not
apply to defects resulting from action of the user such as misuse, improper wiring, operation outside of specification, improper
maintenance or repair, or unauthorized modification. Extech specifically disclaims any implied warranties or merchantability or
fitness for a specific purpose and will not be liable for any direct, indirect, incidental or consequential damages. Extech's total
liability is limited to repair or replacement of the product. The warranty set forth above is inclusive and no other warranty, whether
written or oral, is expressed or implied.
Copyright © 2008 Extech Instruments Corporation.
All rights reserved including the right of reproduction in whole or in part in any form.
Website: www.extech.com Email: support@extech.com
V2.1 5/08
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