Product Description
Economical digital control makes the Guardian 3000 a smart upgrade for labs that want to see exactly what their hotplate stirrer is doing. A backlit LCD shows set and actual temperature and speed with intuitive icons, and a prominent hot top indicator lights whenever the plate is above 40°C. Three top styles let you match the plate to your vessels.
This listing is for OHAUS item number 30983672: Guardian 3000 Hotplate Stirrer e-G31HS07C AM -K1, 7 x 7 in Ceramic Top, 500°C, 80-1600 rpm, 120V. Each unit pairs a durable metal housing and PET front panel with control knobs, an on/off switch for heater disconnect and a built-in support rod holder. Ceramic tops heat from ambient +5°C to 500°C and ceramic-coated stainless steel round tops to 380°C, with stirring from 80 to 1600 rpm and a PTFE-coated stir bar included. An optional temperature probe enables direct control of sample temperature, and the units are TUV safety certified for 120V operation. LIGHT LABS supplies the OHAUS line with knowledgeable support from our Englewood, Colorado team.
Key Features
- Backlit LCD Display – clear readout of temperature and speed with status icons
- Hot Top Indicator – lights when the plate exceeds 40°C, even after power-off
- Optional Temperature Probe – control the sample temperature directly for better accuracy
- 80-1600 rpm Stirring – wide speed range with an included PTFE-coated stir bar
- Three Plate Sizes – 4 x 4 in and 7 x 7 in ceramic or 5.3 in round ceramic-coated stainless steel
Specifications
| Item Number | 30983672 |
| Brand | OHAUS |
| Description | Guardian 3000 Hotplate Stirrer e-G31HS07C AM -K1, 7 x 7 in Ceramic Top, 500°C, 80-1600 rpm, 120V |
| Function | Heating and Stirring |
| Capacity | 15 L |
| Plate Construction | Ceramic |
| Plate Size | 7 in x 7 in (178 mm x 178 mm) |
| Temp. Range | Ambient +5°C – 500°C |
| Control | Digital |
| Power Consumption | 1,050 W |
| Dimensions | 12.5 in x 4.4 in x 8.8 in (318 mm x 112 mm x 223 mm) (LxHxW) |
| Display | Custom Back-lit LCD |
| Working Environment | 5°C – 40°C, 80% RH, Non-condensing (41°F – 104°F, 80% RH, Non-condensing) |
| Speed Range | 80 to 1600 rpm |
| Net Weight | 8.6 lb (3.9 kg) |
| Safety Certification | TUV |
| Temp. Stability | +/-3% Plate, Below 100°C +/-2°C and +/-2% Probe, Below 100°C +/-2°C |
| Temperature Probe | Pt1000 |
| Calibration | 1 Plate/1 Probe Temperature Calibration |
| Power | 100V-120V~ 10A 50/60Hz |
Related Models
- 30680268 – Guardian 3000 Hotplate Stirrer e-G31HS04C AM, 4 x 4 in Ceramic Top, 500°C, 80-1600 rpm, 120V
- 30983673 – Guardian 3000 Hotplate Stirrer e-G31HS04C AM -K1, 4 x 4 in Ceramic Top, 500°C, 80-1600 rpm, 120V
- 30680267 – Guardian 3000 Hotplate Stirrer e-G31HS07C AM, 7 x 7 in Ceramic Top, 500°C, 80-1600 rpm, 120V
- 30680266 – Guardian 3000 Hotplate Stirrer e-G31HSRDS AM, 5.3 in Round Ceramic-Coated Stainless Steel Top, 120V
- 30983671 – Guardian 3000 Hotplate Stirrer e-G31HSRDS AM -K1, 5.3 in Round Ceramic-Coated Steel Top, 380°C, 120V
Applications
- Boiling liquids
- Water and oil bath preparation
- Sample and solution preparation
- Dissolving buffers and reagents
- Preparing media
- Concentrating samples
