Maintenance
Handling Tips
1. Do NOT drop the equipment; components on the circuit board may become dislodged.
2. Store the equipment in the carrying case in a cool dry area.
3. Replace the rubber cap on the connector when not in use to prevent dust and dirt from
getting inside the equipment.
Cleaning Tips
1. Use only 99% or better Isopropyl alcohol when cleaning the connectors. 99% Isopropyl
alcohol is very flammable; additional care must be taken when cleaning the detector.
2. Whenever possible, use specially designed 2.5mm cleaning sticks to clean the
connectors. These don't require alcohol and don't damage the inside of the connectors.
Do not use sticks or swabs of any other type; they may damage the inside of the
connector or may leave behind dust or fibers that will add loss to the fiber reading.
3. The connector ports should be cleaned at the beginning and end of the testing day to
keep connector loss to a minimum.
4. When cleaning the meter case do not use cleaners that contain ammonia.
Battery Replacement
1. The front panel LEDs dim if the 9V battery is too weak to function properly.
2. To replace the 9V battery, slide open the rear battery compartment, replace the
battery, and replace the compartment cover.
Calibration and Repair Services
Extech offers complete repair and calibration services for all of the products we sell.
For periodic calibration, NIST certification or repair of any Extech product, call customer
service for details on services available. Extech recommends that calibration be performed
on an annual basis to insure calibration integrity.
All rights reserved including the right of reproduction in whole or in part in any form.
Tech support: Ext. 200; Repair/Returns: Ext. 210
Email: extech@extech.com; Website: www.extech.com
Copyright © 2002 Extech Instruments Corporation.
Support Hotlines
(781) 890-7440
6
OWL LE&LS V1,3 Oct. 2001