Extech DV40 Operating Manual

V3.0 6/08

Overvoltage Category IV-600V, Category

III 1000V, Pollution Degree 2.

± 2.0% of reading or ±4ºF/2ºC

whichever is greater

Specifications

IR Thermometer

Operating Instructions

1. .IRT measure button

Range -20 to 445°F (-30 to 230°C)

Resolution 0.1°F/C

Emissivity settings 0.95 fixed

Distance to Target Ratio 1:1

Accuracy

2. LCD display.

3. IRT port

4. Battery compartment

5. NCV detector

6. NCV indicator cone

7. NCV measurement button

-8 to 445°F (-10 to 230°C)

-20 to -8°F (-30 to -10°C) ±8ºF/4ºC

8. Battery compartment release latch.

AC VOLTAGE DETECTION

WARNING: Risk of Electrocution. Before use, always test the Voltage Detector

Voltage Sensitivity 50V to 1000V AC

Bandwidth 50/60Hz

Non-Contact Voltage Detector

on a known live circuit to verify proper operation

Detection distance 1” @ 105V

ensuring that the LED is working correctly. Continue holding the NCV button.

1. PRESS and HOLD the NCV button.

2. The cone tip will light up for approximately 2 seconds and then turn off,

General

3. Place the probe tip near the hot conductor or next to the hot side of the

Support Hotline (781) 890-7440

Tech support: Ext. 200; Email: support@extech.com

Display 9999 count LCD display

Operating Temperature 32 to 122°F (0 to 50°C)

Operating Humidity 10% to 80% RH

Power Supply 3 LR44 or A76 button batteries

Weight 1.25oz. / 35.5g

Storage Temperature 14 to 140°F (-10 to 60°C)

Altitude Operating below 2000 meters

Dimensions/Weight 6.25x1” (159x25mm) / 1.25oz / 35.5g

Safety For indoor use and in accordance with

electrical outlet.

glow.

the probe tip along a length of the cord to assure placing the tip in close proximity

to the live conductor.

4. If AC voltage is present, the detector cone will produce a steady constant

NOTE: The conductors in electrical cord sets are often twisted. For best results, rub

sources of energy will randomly trip the sensor. This is normal operation.

NOTE: The detector is designed with high sensitivity. Static electricity or other

accurate readings position the meter as close as possible to the target..

IR TEMPERATURE MEASUREMENTS

NOTE: The IR thermometer has a distance to target ratio of 1:1. For the most

1. Point the IR sensor toward object to be measured,

2. PRESS and HOLD the IR button.

3. The meter will turn ON, “SCAN” will flash in the display and the measured

285 Bear Hill Rd. Waltham, MA 02451

Specifications subject to change without notice

Extech Instruments Corporation : www.extech.com

Repair/Returns: Ext. 210; Email: repair@extech.com

surface temperature will appear in the display.

4. Release the MEASURE button, “HOLD” will appear and the last measured

Displaying °F or °C

The temperature units selection switch

is located in the battery compartment.

value will remain in the display until the meter turns off (approximately 30

seconds).

User’s Guide DV40 Non-Contact

Voltage Detector and IR Thermometer

on a known live circuit to verify proper operation

probe and away from the probe tip

Instructions in this manual before using this product.

Do not attempt to repair this unit. There are no user serviceable parts.

Do not expose the unit to extreme temperatures or high humidity

Do not use the unit if it is wet or damaged

Safety

WARNING: Risk of Electrocution. Before use, always test the Voltage Detector

CAUTION: Read, understand and follow Safety Rules and Operating

WARNING: Risk of Electrocution. Keep hands and fingers on the body of the

Do not apply more than the rated voltage between the probe tip and ground.

This symbol, adjacent to another symbol or terminal, indicates the user

Do not operate with the case open

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 Double insulation

BATTERY INSTALLATION

(click on ‘Contact Extech’ and go to ‘Service Department’ to

make sure that it still good and that it is properly

inserted.

clip release latch and sliding the cover down.

EXTECH INSTRUMENTS CORPORATION (A FLIR COMPANY) 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

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

1. Access the battery compartment by gently pressing the pocket

2. Insert three LR44 button batteries (observe polarity).

3. Replace and latch the cover

NOTE: If your meter does not work properly, check the battery to

Warranty

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.