Ohaus Hot plate Stirrer Guardian 7000

Featuring OHAUS SMART technology, the Guardian Series hotplate stirrers protect the lab with advanced safety features designed to reduce the chance of accidents.

Designed with superior heating and stirring performance, the Guardian 7000 and 5000 Series Hotplate Stirrers combine durability and affordability to reduce the high costs of doing business in science labs. Modernize your lab with OHAUS SMART technology including *SmartPresence™, *SmartLink™, *SmartRate™, *SmartHeat™, SafetyHeat™, and SmartHousing™. The bright LCD screen displays temperature, speed, and *time, and a green indicator lights when the unit is heating and stirring.

OHAUS Guardian 7000 Hotplate Stirrers are designed with outstanding safety features and superior heating and mixing performance. The SmartHousing is chemical resistant with an innovative, easy-to-clean design that channels spill away from internal components and the angled glass control panel. The bright LCD display includes intuitive icons, temperature, speed, and time settings - all designed to monitor performance from across the lab.

OHAUS Guardian 5000 Hotplates Stirrers are designed for safety and simplicity in all research, academia and industrial applications. The design ensures proper mixing and temperature control of the top plate or your sample when using the optional temperature probe. Heating models include a Single Point Calibration feature for multiple setpoints. Select from five models with three plate sizes for your everyday heating and stirring applications.

SmartPresence and SmartLink Technologies Ensure Supervised Operation

Protect your lab with patented SmartPresence and SmartLink technologies. These exclusive features automatically shut off the heater if no one is detected after a user set “time out” period has passed or the *Bluetooth® link between a paired mobile device is broken.

SafetyHeat System Protects the Lab

An industry-leading early detection system that uses two independent safety controls to continuously monitor the electronics and shut off the heating before an overtemperature condition occurs.

Powerful, Consistent Stirring Performance

Precise stirring from 60 to 1600 rpm is made possible by the design of a powerful motor, strong magnet, and software-controlled ramp rate, ensuring secure magnetic coupling for viscous applications. Customized Performance for Precise Applications SmartHeat allows you to set the maximum temperature of the unit and SmartRate enables fast or slow temperature and speed ramp rates. The programming feature allows storage of 5 multi-step programs.

How can the Guardian 7000 safeguard sensitive applications?

For precise sample control with the Guardian 7000, use the included temperature probe and enable SmartRate to select fast or slow temperature and speed ramp rates. SmartHeat allows lab users to limit the maximum temperature of the hotplate stirrer preventing overheating of sensitive samples -- keeping the user and samples safe.

What are the benefits of using the Guardian Series Hotplate Stirrers with round top plates?

The Guardian round top models are ideal for biochemistry and chemistry labs that carry out complex heating and stirring applications and increase productivity by utilizing multiple positions to perform experiments in parallel. Round top models save valuable bench space and accept a wide range of aluminum block accessories that can accommodate standard vials and test tubes. 

What type of Guardian top plate material best suits the lab, ceramic or aluminum?

Ceramic and aluminum top plates are both suitable for lab use and each material has its benefits. Ceramic top plates are chemical resistant and safer if working with corrosive chemicals that may splash onto the plate surface. They can withstand higher temperatures up to 500 °C and can be wiped clean. The white surface of a ceramic top plate is preferable for quantitative chemical analysis or other work where clear visibility of the sample color is required. The edges of a ceramic top plate may not be as hot as the center. This may not be suitable if uniform heating over the entire plate surface is needed for the application. Aluminum top plates offer a more uniform temperature over the entire heating surface and will not crack or chip, and will withstand accidental handling. To avoid thermal shock, glassware should be used on ceramic top plates, and heating of metallic vessels should be avoided. Ceramic top plate units are also not suitable for sandbaths or any vessel that may reflect heat back onto the surface which may cause thermal shock

Which features are built into the Guardian 5000 Series to make it safe for use in academic settings?

The Guardian 5000 Series are designed for durability, reliability, and safety with its exclusive SmartHousing and SafetyHeat. SmartHousing remains cool to the touch at all temperature settings, is chemical resistant, and is an easy-to-clean design that channels away spills from internal components and the front panel. SafetyHeat system protects the lab with an industry-leading early detection system that uses two independent safety controls to continuously monitor the electronics and shuts off the heating before an overtemperature condition occurs.

Applications

Temperature Sensitive Chemistry and Biology, Heat Fixation, Solution pH Optimization, Solution Sterilization, Endothermic Reactions, Denaturing of Organic Material, Sample and Solution Preparation, Dissolving Buffers and Reagents, Preparing Media, Boiling

Display

Backlit LCD Display for temperature, speed and time, green indicator lights when unit is heating and stirring, two prominent hot top indicator lights, icons for SmartRate™, SmartHeat™, SmartPresence™, SmartLink™, probe in use, Single Point Calibration

Operation

Timer, Stirring from 60 to 1600 rpm, temperature range of ambient +5°C to 500°C (ceramic top) or 380°C (aluminum top),power cord (included),8” (20.3 cm) stainless steel RTD temperature probe, 1.5” (3.8 cm) PTFE coated stir bar, in-use cover

Communication

USB port provides flexibility for programming of repeat applications and enhancing safety with SmartLink™ technology; the long-range user detection function operated with the OHAUS Bluetooth dongle accessory (sold separately)

Construction

Probe connection, SmartHousing™ stays cool to the touch and is chemical-resistant, IP21 Ingress Protection, hardened glass front panel, control knobs, On/Off switch for heater disconnect, built-in support rod holder, easy-to-clean ceramic or aluminum tops

Design Features

Hot top indicator lights, audible alarm, SmartHeat™ temperature limiting function, SafetyHeat™ shuts off the heater in the event of a malfunction, temperature calibration feature for 5 probe & 5 plate setpoints, temperature priority function, SmartRate™ functions

FAQ

What differentiates the Guardian 7000 Hot Plate Stirrer?

SmartLink –provides long-range user detection for improving safety when using the heating function.

SmartPresence – detects when a user is nearby and safely turns off the heating function when no one is detected.

SmartHeat – allows users to control the maximum temperature, preventing overheating of sensitive samples.

SafetyHeat – our industry-leading internal protection system assures safety in heating applications with dual-monitoring of system health.

SmartRate – allows users to safeguard sensitive applications with precise control of temperature and speed ramp rates.

SmartHousing – ensures that every Guardian hotplate stirrer is consistently safe to use at high-temperature settings by remaining cool to the touch. The innovative design is easy to clean and channels spill away from the internal components, as well as being constructed from a chemical-resistant material for long-term use in the lab. 

How can the Guardian 7000 Hot Plate Stirrer safeguard sensitive applications?

For precise sample control with the Guardian 7000, use the included temperature probe and enable SmartRate to select fast or slow temperature and speed ramp rates. SmartHeat allows lab users to limit the maximum temperature of the hotplate stirrer preventing overheating of sensitive samples -- keeping the user and samples safe.

What are the benefits of using the Guardian Series Hotplate Stirrers with round top plates?

The Guardian round top models are ideal for biochemistry and chemistry labs that carry out complex heating and stirring applications and increase productivity by utilizing multiple positions to perform experiments in parallel. Round top models save valuable bench space and accept a wide range of aluminum block accessories that can accommodate standard vials and test tubes.