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M 21 Hotplate/Stirrer
The M 21 hotplate/stirrer in a cost effective design with built in advanced safety and user features. These hotplate stirrers all have superb performance such as soft-start for the stirring motor, PID control of the liquid and hotplate temperatures for fastest heat up time without overshoot and temperature stability, acid resistant epoxy-finished chassis and grade 304 stainless steel covers, combined with
a stainless steel shroud between hotplate and cover to avoid the entrance of spills into the interior. Features a direct display of the set and safety temperatures on the front panel of the instrument. Available with RS485-interface which enables easy setting and readout of all relevant parameters. Both the heating power and stirring speed are adjustable with easy to use knobs.
Currently only available in 230V
- 1 safety circuit
- Safety temperature
- External PT100 connection
- Contact thermometer connection
- Soft start
- Timer function
- RS485 interface (RS232 possible via adapter)
- Resistant stainless steel cover
- Control software available
Speed range [1 / min] | 60-1600 |
Temperature range [° C] | RT (+5) - 350 |
Heating power [W] | 500 |
Shape of the heating plate | round |
Heating plate type | stainless steel |
Suitable for round bottom flasks | - |
Suitable for oil or sand bath | - |
Dimensions of the heating plate [mm] | Ø 130 |
Digital display type | LED |
Speed display | Yes |
Temperature display | Yes |
Timer display | Yes |
Timer function | Yes |
Ramp function | - |
Stirring amount, max. (H2O) [l] | 10 |
Accuracy of the temperature control [° C] | - |
Accuracy of temperature control [° C] (with external sensor) |
± 1 |
Interfaces for external sensors | PT100, KTA |
Programmable safety temperature | Yes |
interface | RS485 |
Power supply [V] | 230VAC 50Hz, 115VAC 60Hz |
Weight [kg] | 2.6 |
Width (mm] | 145 |
Height [mm] | 110 |
Depth [mm] | 210 |
Degree of protection according to DIN EN 60529 | IP32 |
Motor type | DC |
Motor rotation | CCW |
Operating mode | Endurance run |
Certification | CE |
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