Overall dimensions (L x W x H):
17 x 11 x 4” (43.2 x 27.9 x 10.2cm)
Top plate dimensions (L x W):
12.5 x 11” (31.8 x 27.9cm)
Top plate material:
glass filled nylon
Electrical (50/60 Hz):
120 volts, 1.3 amps, 75 watts
Fuses:
5mm x 20mm, 5 amp quick acting
Speed range:
60 to 1400rpm
Stability:
60 to /-5rpm
250 to 1/-2%
Timer - STHVDG:
1 second to 160 hours
Maximum H2O capacity:
25L
Maximum vessel dia.:
25cm
Controls: STHVAL:
stir knob, 1 to 10 dial markings
STHVDG:
see page 6
Ship weight:
14.6lbs (6.6kg)
s
PeCifiCaTions
4
o
PeraTing
i
nsTruCTions
- H
igH
v
olume
s
Tirrer
- sTHval
High Volume Stirrer - STHVAL is used for general laboratory stirring needs.
1.
Getting ready:
a. The stir knob has a built in on-off switch at its extreme counter-clockwise position.
Turn the stir knob to the off position. Plug the power cord into a properly grounded
outlet.
b. Place a stir bar into each vessel to be stirred.
c. Place the vessel to be stirred, with contents, onto the center of the stirring position
on the top plate. This is important for stirring because the stir bar will be well within
the magnetic field.
2.
Turning unit on:
a. From the off position, turn the stir knob clockwise until a click is heard, then
continue turning until the desired speed is obtained. The microprocessor speed
control slowly brings the sample to set speed to avoid splashing. The maximum
speed is at the extreme clockwise position of the knob.
3.
Setting speed:
a. When stirring has begun, the desired speed may be obtained by carefully turning
the knob clockwise or counter-clockwise until reaching the desired speed. The
micro-processor also monitors and regulates the stirring speed, sensing your
requirements whether stirring an aqueous, viscous or semi-solid solution.
4.
Turning unit off:
a. To stop stirring function, turn the stir knob to the extreme counter-clockwise
position. The stirrer should be kept in the off position when not in use. To
completely cut off power to the unit, disconnect the power cord from the unit or
un-plug from the wall outlet.
OPERATING TIPS
The stirrer increases speed at a steady rate until the set-point is reached. If the stir bar is
too large or the liquid is too viscous, the stirrer may not reach its set-point. The set-point
speed needs to be reduced. Use stir bar supplied with the unit for optimal performance.
All manuals and user guides at all-guides.com
