Benchmark H3760-H Manual 

And H3760-HS Introduction: Thank you for choosing Benchmark Scientific as your source for laboratory equipment. This manual covers the Benchmark Scientific line of digital Hotplates, Stirrers, and Hotplate/Stirrers (Series H3760). In order to ensure the safe operation of the equipment enclosed, please read this manual in its entirety before use. Specifications Speed: 200-1500 rpm* Temperature: Ambient +5°C – 380°C* Platform Dimensions: 6.5” x 6.5” Electrical: Power Consumption: 115V/60Hz or 230V/60Hz Max: 500W Warranty: 2 Years *Speed and Temperature control may not be available on all models Installation: Prior to installation, please ensure all components are included within the carton and have arrived as expected. Please contact the supplier as soon as possible should there be any discrepancy. Place your new Hotplate/Stirrer on a flat, level service with at least 4 inches (10cm) clearance on all sides. If desired, attach the optional support rod to the rear of the unit by screwing threaded end into designated hole. Attach proper power cord to the rear of unit and plug into a grounded outlet of appropriate voltage. Voltage of outlet must match voltage listed on the label on rear of instrument. Failure to supply appropriate power may damage instrument and void warranty! Control Panel - Hotplate/Stirrer Combination: A) Hot surface indicator light – Safety Warning B) Digital Display C) Temp. selection keys D) Speed control dial E) Start/Stop Operation (Hotplate/Stirrer Combination): - Turn power switch (rear of instrument) to on position (“I”). - Set stir speed by turning the dial. The set stir speed will appear on the top of the display. To operate without stirring, set stir speed to zero. - Set temperature by using the up & down keys beneath the display. The set temperature will appear on the bottom of the display. To operate without heating, set temperature to zero. - Once desired stir speed and temperature are set, press the selection knob to begin stirring and heating. The actual stir speed and temperature will begin to rise to the set parameters. Hot surface indicator lights at 50°C. Caution: Hot surface! Once selection knob has been pressed, the surface of the instrument will begin to heat. Avoid bodily contact or personal injury may occur. Control Panel - Hotplate and Stirrer: A) Hot surface indicator (Hotplate only) B) Digital Display C) Temp. control dial (Speed control in stirrer model) D) Start/Stop Operation (Hot Plate): - Turn power switch (rear of instrument) to on position (“I”). - Set temperature by turning the dial on the right. - Set temperature will appear on bottom of display, with actual surface temp. appearing on top of display. - Once desired temperature is set, press selection knob to begin heating. The actual temperature (top of display) will rise to match the temperature set on the bottom. Hot surface indicator lights at 50°C. Caution: Hot surface! Once selection knob has been pressed, the surface of the instrument will begin to heat. Avoid bodily contact or personal injury may occur. Operation (Stirrer): - Turn power switch (rear of instrument) to on position (“I”). - Set stir speed by turning the dial on the right. - Set stir speed will appear on bottom of display, with actual stir speed appearing on top of display. - Once desired stir speed is set, press selection knob to begin stirring. The actual stir speed (top of display) will rise to the selected stirring speed. Maintenance: - To ensure performance and longevity of the instrument, keep outer body and surface plate clean. Disconnect instrument from power source and use a lint free rag to wipe down all surfaces when cool. Do not immerse in water or spray cleaner directly on the instrument. - The instrument is covered by a 2 year warranty. In the event of failure or defect, disconnect the unit from the

possible. Troubleshooting: Check Trouble Shooting Not heating Or Not stirring Check power Supply Cord Plug firmly into socket Check Fuse Replace Fuse