Retsch AS 400 - Manual (Page 23)

06.11.2012
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Retsch GmbH 23
General
Cleaning
For thorough, gentle and time-saving cleaning of your analyti-
cal sieves, we recommend the Retsch ultrasonic baths.
Ask for our special publication "Care and cleaning of analytical
sieves" free-of-charge.
Do not clean the AS400 control with running water.
Danger to life from electrical shock
Only use a rag moistened with water.
Never use solvents.
Maintenance
If you use your AS400 control for quality control purposes, it
should then be calibrated regularly in accordance with DIN EN
ISO 9000 ff. In this context, please contact or your dealer or
speak directly to Retsch GmbH.
Otherwise the AS400 control is virtually maintenance-free.
Inspections
The imbalance sensors should be checked at least 1x per month
for proper functioning.
1 2 3 4 5 6 7
 Switch the AS400 on from the main switch.
 At the same time press the SET and START buttons and
hold down for 2 seconds
Symbols 1 and 2 should appear.
 Gently tap the trim 3 on the left next to the keyboard foil un-
til both sensors have triggered, the display shows
 Bar symbol 4 for the 1 st sensor
 Bar symbol 5 for the 2 nd sensor
The successful check is stored and concluded by simultaneously
pressing the SET and STOP buttons.
If this is not stored or one of the sensors has failed, the symbols 6 or
7 appear on the display.
 Symbol 6 means repeat the sensor test
 Symbol 7 means sensor defect = replace the control.
Replacing fuses
B
Two glass fuses SPT 6.3A (5x20mm) are required.
 Unplug the power at the socket
 Pull out fuse holder B
 Exchange the fuse
 Re-insert fuse holder B