Magnetic stirrers Guardian 5000/7000

The OHAUS Guardian 5000™ stirred top plates are designed to provide safe and easy operation for all research, scientific and industrial applications. The design allows for proper mixing and temperature control of the top plate or sample, using an optional temperature probe. The heating models feature single-point calibration for multiple setpoints. Five models are available with three sizes of Guardian 5000™ daily heating and mixing plates, and three models of Guardian 7000™ simultaneous heating and mixing magnetic stirrers with heating plate.

Special features:

• SafetyHeat™ system to protect the laboratory

Industry-leading early detection system using two independent safety controls to continuously monitor electronics and shut down heating before excessive temperatures occur.

 

• Efficient and uniform mixing

Precise mixing from 60 to 1,600 rpm is possible thanks to a powerful motor, a strong magnet and speed control from the software, which ensures safe magnetic coupling in case of high viscosity.

 

• Easy-to-read LCD display

The easy-to-read LCD display includes temperature and speed indications, intuitive icons and a clear hot surface indicator. Designed for quick and easy monitoring of performance throughout the laboratory.

 

• Designed for durability and reliability with an exclusive SmartHousing™ enclosure

The SmartHousing™ enclosure is chemical resistant thanks to an
innovative, easy-to-clean design that drains spills from internal components and an angled control panel.

Guardian 5000 programs:

• Preparation of boiling water
• Preparation of water/oil baths
• Preparation of samples and solutions
• Dissolution of buffers and reagents
• Preparation of media
• Concentration of samples

Guardian 7000 programs:

• Chemicals and substances temperature-sensitive biology
• Heat retention
• Optimization of solution pH
• Sterilization of the solution
• Endothermic reactions
• Denaturation of organic material
• Sample and solution preparation
• Dissolution of buffers and reagents
• Preparation of media
• Boiling
• Bringing to a boil

 
Design features of Guardian 5000 mixers:

• Hot Top Sensor
• Audible alarm
• Safety Heat ™ protection shuts down the heater in case of a malfunction
• Temperature calibration function for 3 setpoints and 3 samples

Design features of Guardian 7000 mixers:

• Hot Top Sensor
• Audible alarm
• SmartHeat ™ temperature limiting function
• Safety Heat ™ protection shuts down the heater in case of a malfunction
• Temperature calibration function for 5 setpoints and 5 samples
• Temperature priority function
• SmartRate ™ functions

We offer a range of additional accessories suitable for magnetic mixers.

Model	e-G51ST07C	e-G51HP07C	e-G51HS07C	e-G51HS10C	e-G51HSRDM
Function	mixing	heating	heating and mixing
Size of top plate  [cm]	17,8 x 17,8			25,4 x 25,4	Ø 13,5
RPM range  [rpm]	60 to 1600	n/a	60 to 1600
Speed stability [%]	+/- 2	n/a	+/- 2
Temperature range [°C]	n/a	Ambient temp. + 5 – 500		Ambient temp. + 5 – 380
Temperature stability*	n/a	+/-3% plate, below 100°C +/-2°C and +/-1% sensor, below 100°C +/-1°C
Temperature calibration	n/a	3 plates and 3 sensors
Control	digital
Display	back-lit LCD display		back-lit LCD display - temp and speed
Volume [L]	15			18	20
Material of top plate	Ceramic				Aluminium
Dimensions [H x D x W] [cm]	12,2 x 30,9 x 22,3			12,2 x 41,5 x 28,6	12.6 x 26,7 x 17,3
Net mass [kg]	2.6			5.2	2.6
Power supply [V]	230
Power [W]	104	1242		1449	952
Work conditions	5°C – 40°C, 80% RH, non-condensing
Catalog no.	30500543	30500533	30500523	30500553	30500563

* Convenient conditions. Changes in the temperature measurement process, vessel, environment and samples will affect the actual performance.