Jeio tech Lab Companion SK-300 Operating Manual page 39

Trouble related with main power
Trouble
Main power turns on
but switch lights
off
M ai n sw i t ch l i ght s
on but di spl ay does
not show
Whole controlling
of the unit stops
without cutting
main power or any
buttons
Pr ess START/STO P
but t on but does not
w or k
Trouble related with mechanical shaking system
Trouble
Occur trembleing
when acceleration,
deceleration and
uniform velocity
Taking time to
reach the desired
RPM
Make bumping noise
when operting
Differency between
setting RPM and
speed of the
shaking table
Causes
Blackout

Main plug does not insert

correctly
Fuses are cut

Faulty connection of main

switch
Inferior main switch

Inner harness trouble

Poor transformer

Cotroller and

trouble
Might be influenced

strong noise
Setting values

controller trouble
Causes
The shaker is

equilibrated
Driving system troubles

Too many samples installed

on the shaking table.
Interference or loosing RPM

sensor or its
bracket
Interference of

circuit lines
Driving system troubles.

Tension of the drive belt

is loosing
Solution
1. Check there might be blackout.
2. Main plug connects with socket correctly.
3. If fuses are cut, exchange new one.
4. If the problems do not solve, request
the service.
1. Request the service.
display
a 1. Avoid from the unit producing a strong
noise or put away that.
2. If the problems do not solve, request
the service.
of the 1. After pressing SHAKE/SET button to input
RPM setting
button to check operating condition.
2. If the problems do not solve, request
the service.
Solution
not 1. Set the unit to keep its balance,
refer to the chapter 2.
2. If the problems do not solve, request
the service.
1. Decrease the number of samples on the
shaking table.
1. Request the service.
fixing
inner
1. Request the service.
value, press START/STOP
Page 39