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Science Equip CH1920-001 Magnetic Stirrer Hot Plate Thermostat Instructions

4

Instruction Sheet

Hotplates

Simmerstat

Thermostat

CH1920-001 (Plain Plate)

CH1921-001 (PTFE Coated)

CH1922-001 (Plain Plate)

CH1923-001 (PTFE Coated)

Specifications:

• Plate size: 200x180mm. Material: High

temperature aluminium alloy.

• “Simmerstat” model: Maximum plate surface

temperature 420 C. with small load and with

heat control on 'HI'. Heat infinitely adjustable

from ‘LO’ to ‘HI’ on scale.

• Front Panel Controls: Mains ON/OFF

Switch. (illuminated). Control knob for heat.

• “Thermostat” model: 320 C as the maximum

position on thermostat control knob.

• Cooling: Ventilated Housing and heat baffles

mounted to the underside of hot plate.

Convection cooling inside housing.

• PTFE coated plates are available for each

model. The general appearance is the same

except the top plate colour is a dark char

grey

• Power: 220/240V.AC. 50/60 Hz. 3 Amp

approx. Element 650 watt.

CH1920-001

CH1922-001

Length: 200mm

Width: 180mm

Height: 125mm

Weight: 2.4kg

Note:

Because the Thermostat model is limited for maximum temperature, it is not suitable for boiling

large volumes of water.

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General	Details
Name	Science Equip CH1920-001 Magnetic Stirrer Hot Plate Thermostat Instructions
Make	Science Equip
Language	English
Filetype	PDF (Download)
File size	0.06 MB

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Science Equip Instructions & User Manuals

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Science Equip CH1920-001 Magnetic Stirrer Plate Manual: Questions and Answers

What is the difference between Simmerstat and Thermostat heat control modes?

Simmerstat cycles the element on and off by percentage, while Thermostat cycles on/off to maintain a preset plate temperature capped at 320°C.

Mode	How it works
Simmerstat	Cycles heating element from 10% on/90% off up to 100% on, depending on knob position and load.
Thermostat	Cycles heating on/off to maintain a preset plate surface temperature. Maximum 320°C.

Instructions, p. 3

What do the control knobs on Science Equip hotplate stirrers do?

One knob controls heat from 'LO' to 'HI' (or off to full). On stirrer models, a second knob controls stirring speed from approximately 150 to 1200 RPM. Instructions, p. 2

What should I check before using a Science Equip magnetic stirrer for the first time?

Ensure no packaging materials are jamming the rotating magnet under the plate, then verify smooth, vibration-free magnet rotation across the full speed range.

Check that no residual packaging materials are between the heat baffles jamming the rotating magnet under the plate.
Turn the speed control knob and observe magnet rotation under the hot plate between the heat baffles.
Verify smooth and vibration-free operation from minimum to maximum speed. Instructions, p. 3