EN-24
Defender 3000 Indicators Service Manual
3 MAINTENANCE
CAUTION: DISCONNECT THE UNIT FROM THE POWER SUPPLY BEFORE CLEANING.
WARNING
: Electric Shock Hazard. Disconnect the equipment from the power
supply before cleaning.
Make sure that no liquid enters the interior of the instrument.
Attention:
Do not use solvents, harsh chemicals, ammonia or abrasive cleaning
agents.
3.1 Preventive Maintenance
Ohaus bases should be carefully handled, stored in a clean, dry area, and cleaned periodically. Follow
these precautionary steps:
– When a base has had chemicals or liquids spilled on it, all exterior surfaces should be cleaned as
soon as possible with warm water on a damp cloth.
– Do not leave a mass on the base when it is not in use.
– Allow time for the base to stabilize after moving it from an area which is at a different temperature
than the area where it is to be operated. Allow one hour for each 5°F (2.7°C) temperature change
before using the scale. After temperature stabilization, allow an additional 20 minutes after turning
the scale on, for the scale/ indicator electronics to stabilize.
3.2 Preventive Maintenance Checklist
The scale should be inspected and checked regularly, as follows:
1. Clean the outside of the scale/ indicator using a damp cloth with warm water.
Cleaning for i-DT61PW Model
The housing may be cleaned with a cloth dampened with a mild detergent if necessary.
Cleaning for i-DT61XWE Model
Use approved cleaning solutions for the stainless-steel Indicator housing and rinse with water.
Dry thoroughly.
CAUTION:
DO NOT USE CHEMICAL CLEANERS OR SOLVENTS OF ANY TYPE.
SOME CLEANERS ARE ABRASIVE AND MAY AFFECT THE
BASE’S FINISH.
2. Check to ensure that the power cord is not broken and has no damaged insulation.
3. If using batteries and the scale malfunctions, first replace the batteries to see if this resolves the
problem.
4. Make a visual inspection for faulty connectors, wiring, and loose hardware.
