Guardian
TM
Hotplate-Stirrers
EN-5
The use of a fuse of a different type or with a different value, or
bridging or shunting the fuse is not allowed and can possibly
cause a hazard to your safety and lead to instrument damage!
4.3 Troubleshooting
The following table lists common problems and possible causes and remedies. If
the problem persists, contact OHAUS or your authorized dealer.
Table 4-1 Troubleshooting
Error
Cause of Error
How to Fix
Unit fails to
power on
Missing or blown fuse
Add or replace fuse as necessary.
Unit fails to
heat
Heater over temperature
or
Heater damage
Unplug and replug the power cord
for reset, if the failure consistent,
please contact OHAUS.
Unit fails to
stir
Motor overload
or
Motor damage
Smaller vessel or reduce volume
in vessel and wait for auto reset, if
the failure consistent, please
contact OHAUS.
4.4 Service Information
If the troubleshooting section does not resolve your problem, contact an authorized
OHAUS Service Agent. For Service assistance in the United States, call toll-free 1-
800-526-0659 between 8:00 AM and 5:00 PM Eastern Standard Time. An OHAUS
Product Service Specialist will be available to assist you. Outside the USA, please
visit our website www.ohaus.com to locate the OHAUS office nearest you.
5. TECHNICAL DATA
Equipment Ratings:
Indoor use only
Altitude:
0 to 2000m
Operating temperature:
5°C to 40°C
Storage temperature:
-20°C to 65°C
Operating humidity:
20 to 80% relative humidity, non-condensing
Storage humidity:
20 to 80% relative humidity, non-condensing
Voltage fluctuations:
Mains supply voltage fluctuations up to ±10% of the
nominal voltage.
Overvoltage category
(Installation category):
II
Pollution degree:
2
Summary of Contents for Guardian 2000
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