| Heidolph® Magnetic Hot Plate Stirrers
The new Heidolph magnetic hot plate stirrers offer a flat design with a range of plate sizes to
suit your individual requirements. Heidolph Models MR Hei-Standard, MR Hei-Tec and MR Hei-Tec [ ]
and Model MR Hei-End come with the highest safety standards available. There is an extra safety control
circuit and hot plate cutout by two independent temperature sensors, as well as an independent safety
circuit with a separate circuit that switches off the heating if the nominal hot plate temperature
is exceeded by 50°C. With Heidolph magnetic hotplate stirrers, safety comes first!

Heidolph MR Hei-End |
MR Hei-End
Highest safety standards available
- 800 watt heating power (600 W at 115/100 V)
- Hot plate made of Silumin (aluminium alloys) with ceramic coating:
- excellent heat conduction and distribution
- extremely resistant against scratches and chemicals
- Plate diameter: 145 mm
- Extra safety control circuit and hot plate cut-out via two independent temperature sensors
- An independent safety circuit switches off the heating if a prefixed temperature difference (∆T)
above set temperature is reached
- No unintentional temperature setting
- Speed range: 30 – 1,400 rpm
- Superior speed accuracy: ± 1%
- Digital display for speed and temperature (both, nominal and actual)
- Hot plate temperature range: 20 – 300°C
- Medium temperature range: up to 250°C
- Accuracy temperature setting: ± 1K
- Hot plate residual heat indicator in the digital display lights when unit is turned off and the
hot plate temperature is still higher than 50°C
- Illuminated switch for actual heating condition
- Triac ensures long service life
- Electronic current limited to protect the motor
- Enhanced heavy-duty stirring magnet drives stirring bars with ease
- Excellent stirring results with volumes up to 20 liters (H2O)
Interfaces
- RS 232 interface
- Analog 0 – 10 V interface, read-out actual sample temperature
Required Accessories
- Medium temperature sensor (optional) uses two independent PT 1000, double-checking each other
(safety circuit)
- Medium temperature control accuracy with temperature sensor PT 1000 (optional): ± 0.2K

Heidolph MR Hei-Tec |
MR Hei-Tec
For high requirements
- 800 watt heating power (600 W at 115/100 V)
- Digital display for nominal speed and temperature
- Hot plate temperature range: 20 – 300°C
- Medium temperature range: up to 250°C
- Speed range: 100 – 1,400 rpm
- Speed accuracy: ± 2%
- Extra safety control circuit and hot plate cut-out via two independent temperature sensors
- An independent safety circuit with separate circuit switches off the heating if the nominal hot
plate temperature exceeds 50°C
- Illuminated switch for actual heating condition
- (optional EKT Hei-Con)
- Connector for electronic temperature control
- Accuracy temperature setting: ± 1K with
- Medium temperature control accuracy: ± 1K with
- Triac ensures long service life
- Electronic current limited to protect the motor
- Enhanced heavy-duty stirring magnet drives stirring bars with ease
- Excellent stirring results with volumes up to 20 liters (H2O)

Heidolph MR Hei-Tec [ ] |
MR Hei-Tec
- Hot plate made of Silumin (aluminium alloys) with ceramic coating:
- excellent heat conduction and distribution
- extremely resistant against scratches and chemicals
- Plate diameter: 145 mm
MR Hei-Tec [ ]
- Same specifications as MR Hei-Tec
- Comes with square-shaped hot plate
- Hot plate made of enameled Silumin (aluminium alloys)
- Dimensions of hot plate w x d (mm): 132 x 132

Heidolph MR Hei-Standard |
MR Hei-Standard
Standard stirrer for every lab
- 800 watt heating power (600 W at 115/100 V)
- Hot plate temperature range: 20 – 300°C
- Medium temperature range: up to 250°C
- Speed range: 100 – 1,400 rpm
- Speed accuracy: ± 2%
- Hot plate made of Silumin (aluminium alloys) with ceramic coating:
- excellent heat conduction and distribution
- extremely resistant against scratches and chemicals
- Plate diameter: 145 mm
- Extra safety control circuit and hot plate cut-out via two independent temperature sensors
- An independent safety circuit with separate circuit switches off the heating if the nominal hot
plate temperature exceeds 50°C
- (optional EKT Hei-Con)
- Connector for electronic temperature control
- Accuracy temperature setting: ± 1K
- Medium temperature control accuracy: ± 1K
- Triac ensures long service life
- Electronic current limited to protect the motor
- Enhanced heavy-duty stirring magnet drives stirring bars with ease
- Excellent stirring results with volumes up to 20 liters (H2O)
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