OHAUS Explorer Balances, Руководство по обслуживанию

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CHAPTER 3 - MAINTENANCE / REPAIR PROCEDURES
Ohaus Corporation www.ohaus.com 20 Explorer
®
Series Service Manual
3 MAINTENANCE / REPAIR PROCEDURES
3.1
PREVENTIVE MAINTENANCE
Ohaus balances are precision instruments and should be carefully handled, stored in a clean, dry,
dust-free area, and cleaned periodically. Follow these precautionary steps:
x
When a balance 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.
x
Do not leave a mass on the balance when the balance is not in use.
x
Allow time for the balance 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 balance. After temperature stabilization, allow an
additional 60 minutes after turning the balance on, for the balance electronics to stabilize.
Preventive Maintenance Checklist
The balance should be inspected and checked regularly, as follows:
1. Remove the Pan and Sub Pan to inspect and clean the area beneath the Pan.
2. Clean the outside of the balance using a damp cloth with warm water.
3. Check the Power Cord for broken or damaged insulation.
4. Make a visual inspection for faulty connectors, wiring, and loose hardware.
CAUTION
DO NOT USE CHEMICAL CLEANERS OR SOLVENTS OF ANY TYPE.
SOME CLEANERS ARE ABRASIVE AND MAY AFFECT THE BALANCE
’S FINISH.
3.2
OPENING THE BALANCE
Opening the Explorer
®
balance varies slightly according to the specific model, as detailed below.
Use these procedures in order to replace the Load Cell, the Printed Circuit Board or other
components.
Common hand tools are sufficient to disassemble the Explorer
®
balances.
3.2.1 Preparation for Opening Explorer
®
Models
1. Turn the balance off and unplug the power cord before you begin.
2. Disconnect any communication or other option cables.