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EV400 SERIES – User Manual
Troubleshooting
NO INDICATION LIGHT
Check the power cord; ensure it is plugged in.
Check the fuse; ensure it is not burned.
INADEQUATE TEMPERATURE CONTROL OF THE HEATING BATH
Check the power cord; ensure it is plugged in.
Check if there is too much scale in the heating bath. Clean it if necessary.
The heating bath has relay that if temperature goes over 5ºC of set point, the system gives display and sound
alarm plus stop electrical resistance.
THE MOTOR DOES NOT ROTATE
Check the power cord; ensure it is plugged in.
Check if the synchronous belt driving is damaged.
NOISE IN THE ROTATING PART
There could be accumulation of powder (abrasion of the seal ring). Disassemble the glass tube and remove it.
The synchronous the belt could be heavily worn or works out of its seat. It must be replaced.
The bearing is over-loaded. Replace it.
NO OR NOT ENOUGH VACUUM
Check the seal ring to see if the ring is abraded, if so, replace it.
The sucking state of the vacuum pump is abnormal. Check the vacuum pump and tighten the head.
Check if the glass parts are broken and replace them if so.
The glass parts cannot seal tightly. Put a vacuum grease layer on the glass parts.
ABNORMAL LIFT UP/DOWN
Tighten the steel wire by adjusting two M6 screws under the base.
Check the malfunction of motor.
ATTENTION PLEASE: Please contact the Labtech Service Team if the above suggestions have no effect.
www.labtechsrl.com
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