Procedure While Error 38 - Lid Motor Is Blocked - Hermle Z 446 User Manual

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TROUBLE SHOOTING

To reopen the centrifuge lid, switch off the device and wait until the rotor has come to a standstill.

Take from "Table 4: Acceleration and Deceleration Times" the maximum deceleration time of the

respective rotor. Level 0 corresponds to unbreaked rundown, which occurs at error 14. If the

centrifuge lid is opened before standstill of the rotor, a following error can occur.

Once the rotor has come to a standstill, open the centrifuge lid with the emergency release. Proceed

as described in chapter 4.2.1, p 26. After opening the centrifuge lid, switch on the device again.

Error 14 and the lettering "USEr GuidE" should be eliminated.

If this error occurs again, please contact the service.

4.2.4 Procedure while error 38 – Lid motor is blocked

The lid motor is blocked and for 10 seconds the error massage "error 38" is shown in the display

"time" (A-3). After expiring of this error message please press the key "lid" (7). If the lid lock doesn´t

loose, repeat this procedure two or three more times. If the lid lock still doesn`t loose, the lid must be

opened by using the manual emergency release. Proceed as described in chapter 4.2.1. After

opening the centrifuge lid, switch on again the device. The lid lock adjusts itself in the basic position.

The closing process can be carried out normally again.

Z446_V2.21_eng

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