Ohaus Guardian 5000 Hot Plate Stirrers provide precisely regulated heating and agitation for liquid samples. Ceramic top plates supply even heat distribution from ambient +5°C to 500°C. The software-controlled magnetic drive system accurately controls mixing speeds between 60 and 1600rpm.
Guardian hot plate stirrers feature SafetyHeat™, an early-detection system with two independent sensors that continuously monitor the hot plate. The system analyzes the operation and shuts down the heater before an overtemperature condition occurs. A hot-top indicator on the display alerts workers when the heating surface temperature exceeds 40°C.
Heater accuracy at a selected point can be improved using single-point calibration. Up to 3 calibration points for the plate and 3 points for the probe can be saved.
The bright, easy-to-read LCD display shows large temperature and stirring speed settings for monitoring from across the lab, as well as a prominent hot top indicator. The SmartHousing™ enclosure stays cool to the touch, resists chemicals, is easy to clean, and directs spills away from internal components. Other features include an on/off switch to disconnect the heater and a built-in support rod holder. Guardian 5000 stirrers have capacities of 15L or 18L, and top plates support up to 14.5 kg (32lb). Units operate on 120V, 50/60Hz.
A temperature probe can be purchased separately to control the sample temperature.
OB-70 has a 15L stirring capacity and a 7x7in (178x178mm) ceramic heating platform
OB-72 has an 18L stirring capacity and a 10x10in (254x254mm) ceramic heating platform
Features:
- SafetyHeat™ temperature protection system monitors electronics and prevents overtemperature conditions
- Precise magnetic stirring speed ranges from 60 to 1600rpm
- Includes an on/off switch to disconnect the heater
- Built-in support rod holder
- Large LCD digits display temperature, speed, and hot top indicators
- Single Point Calibration improves heating accuracy at a set point
- Three set points can be stored for the plate or optional probe
- SmartHousing™ technology resists chemicals, is easy to clean, and provides protection of internal components
Included Items:
- Guardian 5000 hot plate stirrer
- Power Cord
- 3.8cm PTFE Spinbar
Accessories:
- Temperature Probes allow precise control of the test specimen temperature
- Spinbars with PTFE covering operate magnetically to stir liquid samples
- Magnetic Stir Bar retriever safely recovers stir bars from the sample
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