Specifications - OHAUS STMP4AL Manual De Instrucciones

s
PeCifiCaTions
Overall dimensions (L x W x H):
Top plate dimensions (L x W):
Top plate material:
Electrical (50/60 Hz):
Fuses:
Speed range:
Stability:
Timer - Digital series:
Maximum H2O capacity: 4 position:
5 position:
6 position:
9 position:
Maximum vessel dia.: 4 position:
5 position:
6 position:
9 position:
Controls Non-digital series:
Digital series:
Ship weight:
17 x 11 x 4" (43.2 x 27.9 x 10.2cm)
12.5 x 11" (31.8 x 27.9cm)
glass filled nylon
120 volts, 1.3 amps, 75 watts
5mm x 20mm, 5 amp quick acting
60 to 1400rpm
60 to 250rpm +/-5rpm
250 to 1400rpm +/-2%
1 second to 160 hours
four (4) 1L
five (5) 600mL
six (6) 400mL
nine (9) 250mL
13cm
9.5cm
8cm
7.5cm
stir knob, 1 to 10 dial markings
see page 6
14.75lbs (6.7kg)
o i - n
PeraTing nsTruCTions
Non-digital Multi-Position Stirrers are 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(s) to be stirred, with contents, onto the center of each stirring
position on the top plate. This is important for stirring because the stir bar will
be well with-in 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 sample(s) 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.
- m -P s
on DigiTal ulTi osiTion Tirrers
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