Description
Product Overview
The OHAUS Guardian 5000 Hotplate Stirrer combines a high‑performance heating plate with a magnetic stirrer, delivering temperature control from ambient to 300 °C and stirring speeds from 60 to 1600 rpm. Constructed with chemical‑resistant SmartHousing, the unit channels spills away from internal electronics, ensuring long‑term reliability. The integrated SafetyHeat system features dual independent sensors that continuously monitor the heating element and automatically shut off power if an over‑temperature condition is detected, providing an industry‑leading safety net for busy labs. A bright LCD display shows temperature, speed, and a prominent hot‑top indicator, while intuitive icons simplify operation.
Usage
Designed for research laboratories, academic teaching environments, and industrial quality‑control settings, the Guardian 5000 excels in applications such as solution preparation, reflux, extraction, and kinetic studies. Its compact footprint (12.2 x 8.8 x 4.8 in) and 9.7 lb weight allow placement on benchtops without sacrificing stability. The magnetic coupling accommodates a wide variety of stir bars, making it suitable for glassware ranging from 50 ml beakers to 5 L flasks. 
Why Choose Us
OHAUS is a trusted name in precision laboratory equipment, and the Guardian 5000 reflects decades of engineering expertise. The exclusive SmartHousing design not only resists corrosive chemicals but also simplifies cleaning—spills are directed away from sensitive components, reducing downtime. SafetyHeat provides an extra layer of protection that exceeds typical lab standards, giving users confidence during long‑run experiments. Each unit undergoes rigorous quality testing and comes with a comprehensive warranty, ensuring consistent performance throughout its service life.
Key Features
- SafetyHeat dual‑sensor system automatically shuts off heating before over‑temperature occurs.
- Precise temperature range up to 300 °C with ±0.5 °C accuracy.
- Magnetic stirring speeds from 60 to 1600 rpm with software‑controlled ramp rates.
- Durable, chemical‑resistant SmartHousing that channels spills away from electronics.
- Large, backlit LCD display with intuitive icons and hot‑top indicator.
FAQ
What size stir bars are compatible with the Guardian 5000?
The unit works with standard magnetic stir bars ranging from 5 mm to 25 mm in length, allowing flexibility for different vessel sizes.
Can the temperature be programmed for a ramp?
Yes, the built‑in software lets you set temperature ramps with customizable rates, enabling controlled heating profiles for kinetic experiments.
Is the device suitable for corrosive chemicals?
The SmartHousing is constructed from chemically resistant materials and its spill‑channel design protects internal components, making it safe for use with most acids, bases, and organic solvents.
How does the SafetyHeat system detect an over‑temperature condition?
Two independent sensors continuously monitor the heating element and the plate surface; if either exceeds the preset limit, the system cuts power to prevent damage.
What warranty does OHAUS provide?
All Guardian 5000 units come with a standard two‑year limited warranty covering parts and labor, plus optional extended service plans.
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