Torrey Pines stirs the emotions with the HS40

By Wai Lang Chu

- Last updated on GMT

Related tags Temperature Laboratory equipment

Torey Pines Scientific has announced the launch if its new stirring
hot plate, which has been designed for use in the chemical,
pharmaceutical, biochemical, and laboratories where reproducible,
accurate, hands-off sample preparation is carried out.

The latest design by the lab equipment specialists aim to improve on one of the staple tools of the laboratory. Hot plates are traditionally used to heat samples. Although they provide less heat, there is no danger of an open flame and higher temperatures of a Bunsen burner.

Hot plate stirrers operate by generating a rotating electromagnetic field in the stirring heads. The liquid to be stirred has a magnetised stirring bar placed in it. The bar and therefore the liquid, is rotated by the magnetic field produced in the heads.

The EchoTherm Model HS40 allows programming to be done through the front panel membrane switch and full-functioned custom liquid crystal display.

The unit can store 10 programs in memory of as many as 10 steps each where each step is a temperature, temperature ramp rate, stirring speed and time.

Each program can be made to repeat itself automatically from 1 to 98 times or infinitely if wanted. All programs are stored electronically.

Heater plates are 8" (20.3 cm) x 8" (20.3 cm) white, solid ceramic glass for excellent chemical resistance and quick heating. The plate surface can be heated from ambient to 450°C in less than 3 minutes.

Plate surface temperature or solution temperature can be controlled directly using the appropriate PID control loop to 1°C of the target. Accuracy is 1 per cent of the reading using platinum RTD circuitry. The units are supplied with temperature calibration certificates traceable to NIST.

Stirring speed is 100 to 1500 rpm and controlled by optical coupler to 10 rpm. Count down timer with alarm and user settable Auto-Off are standard.

An RS232 I/O port also is standard with the unit. Various sample probes are available as accessories. The Model HS40 is available in 100, 115, and 230 VAC, 50/60 Hz models. All units are UL, CSA, and CE certified.

Related topics Preclinical Research QA/QC

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