Helmer Scientific Platelet Agitator
Service Manual
360391/A
13
4 Troubleshooting
CAUTION
Review all safety instructions prior to troubleshooting.
4.1
General Operation Problems
Problem
Possible Cause
Action
Agitator is inoperable
Power switch is in OFF position.
Switch power switch to ON.
The power cord is disconnected or
loose.
Ensure cord is properly attached.
If the platelet agitator is installed in
a Helmer incubator, the door switch
has not been activated to allow
agitation to resume.
Close the incubator door. Verify i.C
3
AgiTrak screen door status is closed.
Agitation speed will not
change.
Stand-alone agitator
communication switch is not set to
the (X) position
Verify agitator communication switch is set to the (X) position for stand-
alone mode.
Agitation is noisy or rough.
Trolley is not evenly loaded.
Verify product drawers are evenly loaded.
Insufficient clearance around the
trolley obstructing agitation.
Verify agitator has proper clearance, and no objects are preventing
agitation.
One or more wheels are worn.
Inspect the wheels. Replace if necessary.
Motor or gearbox is faulty.
With the gearbox and motor exposed, turn on the power. If operation is
noisy or jerky, replace the gearbox and motor.
Agitator is moving around on
placement surface.
Placement surface is slick.
Relocate agitator to non-slick surface.
Install mounting brackets (included in packaging) and attach to surface.
Agitation speed is set too high.
Reduce agitation speed.
4.2
Alarm Activation Problems
Problem
Possible Cause
Action
Agitation has stopped, but
the motion alarm is not
active. Stand-alone, not in
incubator.
The agitation alarm selector switch
is in wrong position.
Verify agitator communication switch position is (X) for standalone mode.
Alarm delay period has not lapsed
Check alarm delay setting.
The agitator motion alarm switch
is
OFF
.
Turn the agitator motion alarm switch
ON
.
The alarm activates while the
trolley is moving.
(stand-alone)
The motion actuator and motion
sensor are not aligned.
Ensure the actuator on the bottom of the trolley is aligned with the sensor
on the base. Adjust the position if not aligned.
The motion sensor or actuator is
faulty.
Check the connections for the actuator and the sensor. Replace the
actuator or the sensor if faulty.
The Agitator Control Board is faulty.
Replace the Agitator Control Board.
Alarm switch is blinking, but
no audible alarm is active.
Alarm volume is muted.
Rotate alarm volume clockwise to increase alarm volume.
