Leica Expert Troubleshooting for Cryostat and Microtome Devices

6.Troubleshooting, applications tips

6.1 Displayed error messages

The autodiagnosis function of the CM3050 S displays error messages in case of certain mal- functions.

1. Power failure

This error message is displayed after the instru- ment had been disconnected from mains, either due to power failure or because the mains switch had been turned off.

C

T

-

3

0

°

C

O

T

-

3

5

°

C

P

O

W

E

R

F

A

I

L

U

R

E

•To acknowledge the message, press for about 5 seconds.

2. Coarse feed

Coarse feed malfunction has occurred.

C

T

-

3

0

°

C

O

T

-

3

5

°

C

?

?

?

?

This message is also displayed, if the coarse feed plug has not been reconnected properly after reinstallation of the microtome.

3. Temperature indications

C T - # # ° C O T - 3 5 ° C

or

C T - 3 0 ° C O T - # # ° C

If the # symbol is displayed instead of chamber or specimen temperature indication, the corre- sponding temperature sensor is broken or a short circuit has occurred.

4. Service

C T - 3 0 ° C O T - 3 5 ° C

S E R V I C E

This message is displayed after a certain number of operating hours to remind the user to have a preven- tive maintenance done by Leica Technical Service.

This message is displayed only, if the instrument is not regularly ser- viced by Leica Technical Service.

We recommend a maintenance contract once the warranty period has expired!

Contact your local Leica sales office for details!

If one of the error messages listed under 2, 3 and 4 is displayed, please contact Leica Technical Service.

6.1.1 Other error indications

(red ) in control panel 2 is illuminated:

•Emergency stop button accidentally activat- ed.

--> Unlock.

•Footswitch not properly connected.

--> Check connection - connect properly, if applicable.

Leica CM 3050 S – Cryostat 47