RT30 V2.0 11/08

6

Maintenance

Battery Replacement

When the Power LED begins to dim, or the transmitter and receiver stop

communicating, the batteries may need to be replaced. Each unit uses two (2)

‘AAA’ batteries (MN2400 or equivalent). The battery doors can be removed

using a Philips screwdriver to loosen the attaching screw.

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 Care

Department for information on calibration services available for this product.

Extech recommends that annual calibrations be performed to verify meter

performance and accuracy.

FCC Part 15 (RT30)

This equipment has been tested and found to comply with the limits for a

Class B digital device, pursuant to part 15 of the FCC Rules. These limits are

designed to provide reasonable protection against harmful interference in a

residential installation. This equipment generates, uses and can radiate radio

frequency energy and, if not installed and used in accordance with the

instructions, may cause harmful interference to radio communications.

However, there is no guarantee that interference will not occur in a particular

installation. If this equipment does cause harmful interference to radio or

television reception, which can be determined by turning the equipment off

and on, the user is encouraged to try to correct the interference by one or

more of the following measures:

—Reorient or relocate the receiving antenna.

—Increase the separation between the equipment and receiver.

—Connect the equipment into an outlet on a circuit different from that to which

the receiver is connected.

—Consult the dealer or an experienced radio/TV technician for help.

Warning: Changes or modifications not expressly approved by the party

responsible for compliance could void the user's authority to operate the

equipment.