VWR Collection Laboratory Equipment - page 46

44
• Excellent temperature uniformity
• LED digital display for temperature, speed, and time
• Cool touch, chemical resistant housing
• Includes RTD temperature probe kit
VWR
®
Professional Hotplates, Stirrers, and Hotplate-Stirrers are designed for applications
that require exceptional accuracy, stability, and repeatability. Exclusive safety features help
protect operator and sample. Enhanced microprocessor control offers an external RTD
probe option that delivers superior temperature control of the sample. Stirring function, with
continuous duty motor and powerful magnet, maintains set speed even under changing
load or viscosity. Separate LED displays for temperature, speed, and time allow user to
view all settings at once.
Operating Features:
Low profile design:
Takes up minimal space and fits easily into fume hoods. Spill-
resistant design channels fluids away from internal components.
Microprocessor control:
Advanced electronics regulate both heating and stirring and
bring samples to temperature quickly and efficiently. RTD accurately measures and
controls temperature. Precise speed control provides consistent stirring at all speeds.
Powerful continuous duty motor delivers dependable and reliable stirring.
Control panel
: Touch pad controls with easy-to-read, independent LED displays
for temperature, speed, and time allow operator to view all settings at once. Provides
repeatable and accurate results every time and is easily visible from outside fume hoods or
across lab benches. Shows set-point and actual temperatures. Timer will display elapsed
time or when programmed to user defined limit, will shut off unit when time reaches zero.
Display will show last used settings, even after power has been turned off.
Ceramic or aluminum top plate materials:
Ceramic tops feature a chemical resistant,
reflective white top plate surface that is easy to clean. Durable aluminum tops will not crack
or chip, and provide a more even temperature distribution.
Built-in support rod holder:
Rear housing features an off centered, built-in support rod
holder with locking knob that accepts the probe kit supplied with heating models.
RTD probe kit:
Heating models are supplied with a probe kit which includes an 8” (20.3cm)
stainless steel PT1000 RTD temperature probe, 18” stainless steel support rod, hook
connector and a thermometer/temperature probe extension clamp.
Safety Features:
Cool touch housing:
Housing is made of a heat resistant polymer that is not only cool to
the touch, but is also chemical resistant.
Hot top indicator:
For additional safety, hot symbol warning light is illuminated when heat
is turned on and remains on until top plate cools down (for hotplates or hotplate-stirrers).
Stir protection:
If stirrer motor stops or fails, unit will automatically shut down heater (for
hotplate-stirrers).
Speed ramping feature:
Slowly increases motor speed for improved safety and enhanced
coupling. Avoids splashing, improves spin bar control, and provides excellent low end
speed control (for stirrers or hotplate-stirrers).
Maximum temperature limiting:
(Plate over temperature limit) Ensures plate temperature
will never exceed users programmed set temperature limit, allowing for control of samples
with sensitive flash points (for hotplates or hotplate-stirrers).
Audible alarm:
In timed mode, alarm will sound when time reaches zero or when unit
reaches set-point temperature (for hotplates or hotplate-stirrers).
Probe protection:
If probe disengages from sample, unit will automatically shut off heater
(for hotplates or hotplate-stirrers).
VWR
®
Professional Hotplates, Stirrers & Hotplate-Stirrers
VWR
®
HOTPLATES/STIRRERS
Specifications
Top Plate Dimensions
7 x 7” Units
7 x 7” (17.8 x 17.8cm)
10 x 10” Units
10 x 10” (25.4 x 25.4cm)
Temperature Range
Ceramic Top Plate Units
Ambient +5°C to 500°C
Aluminum Top Plate Units
Ambient +5°C to 400°C
Temperature Stability*
± 1%
Speed Range
60 to 1600rpm
Speed Stability
± 2%
Timer
1 second to 160 hours
Maximum Capacity (H
2
O)
7 x 7” Units
2500mL
10 x 10” Units
6000mL
Overall Dimensions
7 x 7” Units
14.8 x 9.9 x 4.3” (37.6 x 25 x 10.9cm)
10 x 10” Units
17.9 x 13 x 4.3” (45.5 x 33 x 10.9cm)
Ship Weight
7 x 7” Units
12lbs (5.4kg)
10 x 10” Units
17.4lbs (7.9kg)
Operating Conditions:
Unit can be run in conditions from 5 to 40°C (41 to 104°F), maximum 80%
relative humidity, non-condensing.
Ordering Information
Units include a 92” (234cm) detachable, 3-wire cord and plug (230V units
are supplied with Euro type plug). Stirrers and hotplate-stirrers are supplied
with a 1.5” (3.8cm) PTFE coated stir bar. Hotplates and hotplate-stirrers are
supplied with a probe kit which includes an 8” (20.3cm) stainless steel RTD
temperature probe, 18” stainless steel support rod, hook connector and a
thermometer/temperature probe extension clamp. All units include a two year
limited warranty on parts and labor.
* Plate Control: Below 100
°
C ± 2°C. Environmental and sample conditions permitting.
* Probe Control: Below 100
°
C ± 1°C. Environmental and sample conditions permitting.
1...,36,37,38,39,40,41,42,43,44,45 47,48,49,50,51,52,53,54,55,56,...116
Powered by FlippingBook