BUCHI KjelSampler K-377 - Manual (Page 17)

2 Safety
17 K-375/376/377 Operation Manual, Version B
2 .5 .5 Built-in safety elements and measures
The KjelMaster K-375 has monitored protective doors which prevent a distillation to start while a
door is open. A running distillation is immediately interrupted when a door is opened. The dosing of
reagents is also immediately stopped.
The sample changers K-376/K-377 have monitored protective shields. Running a sample changer
with opened shield is impossible. For the K-377 only the shield of the tray, that is currently not in use
can be opened.
K-375:
• Protective door: Safety appliance to protect users from burns at the splash protector (distillation
area) which is hot during distillation.
• Protective door sensors: Prevents to start a distillation with the protective doors open and stops
the distillation as soon as a protective door is opened during the process.
• Sample tube sensor: Prevents to start a distillation without a sample tube inserted.
• Service door sensor/switch: Electrical power is disconnected immediately when the service door
is opened, thus preventing electrical shock during maintenance.
K-376:
• Protective shield with sensor/switch: As soon as the shield is opened an alarm sound is triggered
and any movement of the arm is stopped.
K-377:
• Protective shield with sensor/switch: As soon as the shield of the tray in use is opened an alarms
sound is triggered and any movement of the arm is stopped. (The shield of the respective tray
that is not operated can still be opened without any restrictions.)
2 .6 General safety rules
Responsibility of the operator
The head of the laboratory is responsible for training his/her personnel.
The operator shall inform the manufacturer without delay of any safety-related incidents which might
occur during operation of the device or its accessories. Legal regulations, such as local, state and
federal laws applying to the device or its accessories must be strictly followed.
Duty of maintenance and care
The operator is responsible for the proper condition of instrument. This includes maintenance, service
and repair jobs that are performed on schedule by authorized personnel only.
Spare parts to be used
Use only genuine consumables and spare parts for maintenance to assure good system perfor-
mance, reliability and safety. Any modifications of spare parts or assemblies are only allowed with the
prior written permission of the manufacturer.
Modifications
Modifications to the device are only permitted after prior consultation and with the written approval
of the manufacturer. Modifications and upgrades shall only be carried out by an authorized BUCHI
technical engineer. The manufacturer will decline any claim resulting from unauthorized modifications.