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Hot Plate Stirrer, Digital, Model HS51/HS51A from Torrey Pines Scientific
 Magnetic Stirrers   Further information and overview of our Torrey Pines Scientific magnetic stirrers
 Datasheet PDF datasheet
 Price List PDF price list - Torrey Pines Scientific Laboratory Equipment
The Torrey Pines Scientific HS51 series digital hot plate stirrers is designed specifically for larger samples. Mounted into a cast aluminum frame, the chemically resistant ceramic heater top of the HS51 is ideally suited for precise temperature control of liquid media.

When heating larger sized solids directly on the plate surface, the HS51A is the instrument of choice. Its heater top is made from a cast aluminum alloy, enabling minimum pitting when milled. It is very flat and, thanks to its better heat conductivity, provides a more uniform heating across the surface, compared to ceramic glass.

Both models provide a 305 x 305 mm heater top with a heater power of 1,400 W. A platinum RTD sensor located under the plate surface determines the current temperature and forwards the information to a PID control loop. Up to 5 liters of aqueous solution can be mixed over a speed range of 100 to 1,500 rpm.

A DIN jack on the rear side of the unit accommodates the 254 mm long stainless steel immersion probe which is included with each unit and used to determine solution temperatures. In this regard we strongly recommend the use of a immersion probe for the most accurate temperature control.

The HS51 series magnetic stirrers with heater comes with a large, easy-to-read LCD. The following parameters are displayed: measured plate surface or solution temperature (by means of immersion probe), mixing speed, as well as count-down timer in hours, minutes and seconds. Two memory buttons store the user's favorite settings for instant, one-button recall and use.
Hot plate stirrer type HS51A from Torrey Pines Scientific (similar to illustration)
HS51A Hot Plate Stirrer (similar to illustration)
All models feature a factory set electronic calibration, traceable to NIST, however, the user is able to recalibrate the unit to his own standard. A RS232 I/O port enables data collection or external PC control of the unit.
Enlarged image: display and controls - HS51 hot plate stirrer
Image 1
Enlarged image: ceramic heater top - HS51 hot plate stirrer
Image 2
Image 1:
Display and controls of the Torrey Pines Scientific HS51 hot plate stirrer
(similar to illustration)

Image 2:
Ceramic heater top of the Torrey Pines Scientific HS51 hot plate stirrer
(similar to illustration)

Heater power: 1,400 W
Plate material HS51: ceramic glass
Plate material HS51A: cast aluminum
Temperature range: room temperature - 450 °C
Heater surface: 305 x 305 mm
Temperature accuracy: approx. 1% deviation of setting
Temperature readability: 1 °C
Stirring speed range, unloaded: 100 - 1,500 rpm
Stirring speed settability: nearest 10 rpm
Stirring load: approx. 5 liters (H2O)
Dimensions (WxHxD): 318 x 114 x 457 mm
Weight HS51: 8.4 kg
Weight HS51A: 8.6 kg
Mains supply: 100, 115 and 230 VAC, 50/60 Hz
Immersion probe: included with each unit (HS30-601)
Timer: 99 hours count-down
PID temperature control, plate and probe: yes
Alarm & Auto-Off: yes
RS232 I/O port: yes
Immersion probe port: yes (DIN jack)
Temperature ramp function: no
Warning LED - plate temperature >50 °C: yes

 Description Part No. 
HS51 Hot Plate Stirrer, digital, 305 x 305 mm ceramic glass top HS51-2
HS51A Hot Plate Stirrer, digital, 305 x 305 mm cast aluminum top HS51A-2
Probe, stainless steel, 102 mm, platinum RTD, approx. 1 m cable HS50-600
Probe, stainless steel, 153 mm, platinum RTD, approx. 1 m cable HS30-600
Probe, stainless steel, 255 mm, platinum RTD, approx. 1 m cable (included with each unit) HS30-601
Probe, PTFE, 153 mm, platinum RTD, approx. 1 m cable HS30-602
Probe, glass, 153 mm, platinum RTD, approx. 1 m cable HS30-603
Probe, glass, 229 mm, platinum RTD, approx. 1 m cable HS30-604
Probe Calibration Kit HS30-700
Hot Plate and Probe Calibration Kit HS30-800
 For pricing information, please refer to our current price list.

Further information on the HS61 series high capacity hot plate stirrers from Torrey Pines Scientific HS61 Programmable Hot Plate Stirrer from Torrey Pines Scientific
The HS61 series large capacity hot plate stirrers is fully programmable and available with 305 x 305 mm ceramic glass or cast aluminum heater tops. Its memory holds 10 programs comprising up to 10 steps.

Further Information: HS61 hot plate stirrers

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For further questions, please don't hesitate to contact us.

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