Extech Instruments DVA30 User manual

User’s Guide
Model DVA30
AC Voltage and Current Detector
Non-Contact Voltage Detection
Non-Contact Current Detection
Identify “hot” conductors and terminals
Trace current carrying conductors behind
walls and in conduit
Sensitivity adjust to “home” in on conductors
Locate hidden wires
Copyright ©2009 Extech Instruments Corporation.
All rights reserved including the right of reproduction in whole or in part in any form.

DVA30-EU V2.1 03/09
2
International Safety Symbols
This symbol, adjacent to another symbol or terminal, indicates that
the user must refer to the manual for further information.
This symbol, adjacent to a terminal, indicates that, under normal
use, hazardous voltages may be present
Safety Precautions
1. Improper use of this meter can cause damage, shock, injury or death.
Read and understand this manual 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.
Tester Description
1. Current Sensor and
LED
2. Current Detector “ON”
LED
3. Current Detector
Sensitivity adjustment
4. Current/Voltage/OFF function selector switch
5. Voltage Sensor and LED
6. Voltage Detector “ON” LED
7. Voltage Detector Sensitivity adjustment
8. Audible beeper
Specifications
Voltage detection 12V to 600VAC
Current sensitivity 200mA (0.2A) AC at 0.2”
Audible indication Beeper (Voltage & Current)
Visible indication Flashing LED (Voltage & Current)
Frequency range 50 to 500Hz
Operating Temperature 14 to 122°F (-10°C to 50°C)
Operating Humidity < 80% RH
Altitude < 2000m
Power supply (4) LR44 batteries or equivalent
Weight 2.1 oz. (60g)
Dimensions 7.6 x 1.2 x 0.9” (192x31x24mm)
IEC 1010 Category III 600V
Indoor use

DVA30-EU V2.1 03/09
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Operation
WARNING: Risk of Electrocution. Before use, always test the Detector on
a known live circuit to verify proper operation
NOTE on RF Interference: In the voltage mode, 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.
VOLTAGE DETECTION
1. Slide the Function switch to the Voltage position.
2. The “VOLTAGE” LED will light. If the LED is dim or does not light, replace the batteries.
3. Set the Sensitivity adjustment to max.
4. If the detector begins to beep/flash,slowly turn the
sensitivity down until the beep/flash stops.
5. Touch the detector voltage sensor to the hot conductor
or insert into the hot side of the electrical outlet.
6. IfAC voltage is present, the detector light will flash and the audible beeper will sound.
7. Adjust the sensitivity as needed to zero-in and identify the live conductor.
CURRENT DETECTION
NOTE: There must be a load on the circuit (current flow) for the current
detection function to work.
1. Slide the Function switch to the Current position.
2. The “CURRENT” LED will light. If the LED is dim or does not light, replace the batteries.
3. Set the Sensitivity adjustment to the max position
4. If detector begins to beep/flash, slowly turn the
sensitivity down until the beep/flash stops.
5. Move the detector current sensor near the current
carrying conductor until the current tip flashes and beeper sounds.
6. Slowly reduce the sensitivity and reduce the distance between the sensor and
conductor to zero-in and identify the conductor.
BATTERY REPLACEMENT
1. Turn power OFF
2. Slide the pocket clip off (as shown) to
access batteries.
3. Replace the four LR44 batteries. The
negative sides of the batteries face in
the same direction, as shown. The
positive sides of the batteries face in
the opposite direction.
_
+

DVA30-EU V2.1 03/09
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Typical Applications
VOLTAGE
CURRENT
Locate breaks in wires Identify hot terminal and polarity
Trace current flow behind walls Detect current flow through
conduit or shielding
Check/Monitor current flow to appliances
Compare current flow on
branch circuits