BUCHI KjelSampler K-377 - Manual (Page 150)

8 Troubleshooting
150 K-375/376/377 Operation Manual, Version B
8 .3 Eliminating errors of the KjelSampler K-376/K-377
Check the function of the KjelSampler K-376/K-377 (test procedure).
In case you observe any leakage between a sample tube and the sampler arm with the sealing cap,
you may check the sample tube with the provided test gauge (see chapter 7.3.5).
In case the sampler arm does not move to the reference position (for determination of the exact posi-
tion), proceed as follows:
• Close the protective shield.
• Press the toggle switch at the back and hold it until the sampler arm is in the upper end position.
NOTICE
Risk of device damage.
• There is no mechanical end stop for the sampler arm movement. Only keep on pressing the
toggle switch until the sampler arm is slightly above the rack, to be able to move the sampler
arm.
If an error on the K-376/K-377 cannot be eliminated, the KjelMaster K-375 can also be operated
without the sampler. In this case deactivate the KjelSampler in the Settings menu.
Using the toggle switch on the rear side of the KjelSampler it is possible to move the sampler arm
and to perform a long-term test:
Press and hold for more than 2.5 seconds Moves arm up continously.
Press 2 times within 2.5 seconds Move arm to service posistion.
Press 3 times within 2.5 seconds Move arm to zero position.
Press 4 times within 2.5 seconds Move arm to the washing position (for transportation)
Press 5 times within 2.5 seconds Start long-term test.
NOTE
In case the sampler arm of the K-376 or K-377 can not be moved by reason of an electronic failure,
it can be lifted manually using a hand crank. The hand crank can be obtained from any authorized
BUCHI representative.
In case you observe any leakage between a sample tube and the sampler arm with the sealing cap,
you may check the sample tube with the provided gauge.