2 duty of maintenance and care, 3 spare parts to be used, 4 modifications – BUCHI Ultrasonic Package User Manual
Page 11: 5 product safety, 1 general hazards, Danger

BÜCHI Labortechnik AG
Safety | 2
Ultrasonic Controller
11/46
Legal regulations, such as local, state and federal laws applying to the device or
its accessories must be strictly followed.
2.4.2 Duty of maintenance and care
The operator is responsible for the proper condition of the device. This includes
maintenance, service and repair jobs that are performed on schedule by autho
rized personnel only.
2.4.3 Spare parts to be used
Use only genuine BUCHI consumables and spare parts for maintenance to as
sure good system performance, reliability and safety. Any modifications of spare
parts or assemblies are only allowed with the prior written permission of BUCHI.
2.4.4 Modifications
Modifications to the device are only permitted after prior consultation and with
the written approval of BUCHI. Modifications and upgrades shall only be carried
out by an authorized BUCHI technical engineer. BUCHI will decline any claim
resulting from unauthorized modifications.
2.5 Product safety
The Ultrasonic Controller is designed and built in accordance with current state
oftheart technology. Nevertheless, risks to users, property, and the environ
ment can arise when the device is used carelessly or improperly.
BUCHI has identified the following residual dangers emanating from the device:
• The device is operated by insufficiently trained personnel.
• The device is not operated according to its proper use.
• Appropriate warnings in this manual serve to make the user alert to these
residual dangers.
2.5.1 General hazards
The following safety messages show hazards of general kind which may occur
when handling the device. The user shall observe all listed counter measures in
order to achieve and maintain the lowest possible level of hazard.
Additional warning messages can be found whenever actions and situations de
scribed in this manual are related to situational hazards.
DANGER
Risk of inhalation of inert gases.
Death by suffocation or serious poisoning.
1.
Do not inhale inert gases.
2.
Directly withdraw released gases and gaseous substances by sufficient
ventilation.
3.
Only operate the device in ventilated environments.
4.
Before operation, check, if all parts, connections and seals involved in the
gas flow are secure and in good working order.
5.
Exchange worn out or defective parts immediately.