User manual

VB300-EN- V1.3 1/12

Support lines: U.S. 877-439-8324, Intl. 603-324-7800

Technical support: Option 3; E-mail: support@extech.com

Repair & Returns: Option 4; E-mail: repair@extech.com

Product specifications subject to change without notice

Visit our website: www.extech.com

Extech Instruments Corporation, 9 Townsend West, Nashua, NH 03063

ISO 9001 Certified since 1995

Battery Replacement

The VB300 does not lose its stored readings when the battery expires or when the battery is replaced. The data

logging process will however be stopped and cannot be re-started until the battery has been replaced and the

logged data has been downloaded to PC.

The battery life is rated for approx. 1000 hours. If in doubt, replace the battery before logging critical data. Use

only 3.6V lithium batteries. Before replacing the battery, remove the datalogger from the PC.

Note: When the VB300 is connected to the USB port, its battery discharges at a higher rate than normal. To

conserve battery life, do not leave the VB300 connected to the USB port for a prolonged period of time.

1. Remove the two Phillips screws identified with the two smaller arrows in the diagram below.

2. Slide the battery compartment cover in the direction of the larger arrow.

3. Replace the battery with one of the same type (3.6V lithium, ½ AA 1.0Ah, Saft LS-14250 or equiv).

4. Close the battery compartment and tighten with the two screws.

WARNING: Handle lithium batteries carefully, observe warnings on battery casing. Dispose of in accordance with

local regulations.

Warranty

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 to 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 for authorization. Visit our website

www.extech.com for contact information. 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.

Calibration and Repair Services

Extech offers repair and calibration services for the products we sell. Extech also provides NIST certification for most products. Call the

Customer Service Department for information on calibration services available for this product. Extech recommends that annual

calibrations be performed to verify meter performance and accuracy.