position stirring units, the HS65. This unit has a fan on the rear of the unit too cool the
stirrer motors. Vapor can be drawn into the unit by this fan. In any case when using
corrosive chemicals, it is best to try to purge the unit using lab air or an inert gass. Plug as
many holes as is possible and run the gas line into the unit. This causes a positive air
pressure inside the unit and helps keep corrosive vapors out of the unit. On the HS65, the
user may want to deactivate the cooling fan when using a purge gas. When using the unit
with corrosive gasses always work under a fume hood.
CAUTION: Do not attempt to clean the heater surface when it is hot. Burns could occur.
PRÉCAUTION D
=
EMPLOI: Ne pas nettoyer la surface de la plaque lorqu
=
elle est chaude
pour éviter toute brûlure accidentelle.
Maintenance
There is no ongoing maintenance program needed with this unit other than the normal care and
cleaning as instructed above and a simple inspection done whenever the unit is to be used. This
simple inspection should include:
1- Checking that the AC line cord is not frayed or burned.
2- Checking that the unit is not dirty to a point where proper performance is impaired. This is
especially important relative to the membrane switch and LCD window.
3- Being certain to store the unit properly when not in use in an area that will not have items
placed on top of the unit. Cover the unit in a way that will keep dirt and other foreign bodies
out.
17
XIV. ADDITIONAL SYMBOLS
The following are additional symbols found on the labels of the instrument.
Symbol Description
V
Voltage
~
Alternating
Current
A
Current
Hz
Frequency
W
Power
F
Fast
Acting
Fuse
T
Time
Delay
Fuse
I Mains
On
