Friday, July 1, 2011

Temp compensated liquid dispenser

The Deeter Group has introduced their new Liquid Volume Dispenser. Typical applications include dosing of chemicals, colours, flavourings or control of any liquid being dispensed in a manufacturing process or laboratory.

The new liquid volume dispenser will repeatedly deliver a precise, operator selected, measured volume of liquid at the press of a button. The unit features automatic calibration and is temperature compensated to ensure accurate dosing across the wide temperature range of possible fluids being delivered. A USB data-link and control software suite is provided to allow users to externally control the Liquid Volume Dispenser and collect data for logging and archiving.

The liquid volume required is simple to select and the setting is retained in non-volatile memory for repeat operation. Volumes between 0.10 litres and 100.00 litres can be selected in increments of 0.01 litres. The dispenser will accurately measure volumes over a flow rate range of between 0.6 litres/minute and 5 litres/minute.

Peter Whiteaker
, Managing Director of Deeter Group comments; "We designed our first fluid dispenser over twenty years ago. We now see a growing market in many manufacturing and laboratory applications and our new design offers customers temperature controlled accuracy and the convenience of control or data-logging via an external computer.”

The Deter Liquid Volume Dispenser has two Speedfit® push-fit connectors for fluid in and out. These can accommodate a tube with an outside diameter of 8mm. Wetted surfaces are nylon, PTFE, Buna and acetal, making the Liquid Volume Dispenser suitable for a wide range of fluids.

Operator controls consist of a three-button keypad and a liquid crystal display. The display shows the selected volume and progress during dispensing. A number of additional features are available through the keypad, including pause and restart during dispensing, cancelling dispensing, and manual ‘top-up’ control.

An audible ‘beep’ option is provided to indicate when dispensing has stopped and a further option will produce continuous ‘beeps’ if the flow rate is outside of  the limits for accurate volume measurement. These audio options can be enabled or disabled through a display menu and are also saved to non-volatile memory and are restored to the operator’s preference after power-up.

The Liquid Volume Dispenser is powered by a low-voltage supply, making it safe to use if liquid is spilt and a 12VDC mains socket adapter is supplied with each dispenser. Fluid temperature range is +1 to +65ºC and the unit is housed in a 175x125x78mm enclosure. It offers a flow rate range of 0.6 to 5.0 litres per minute with a dispensing volume accuracy of -3%+0% over the flow rate range. Fluid connections are via 8mm outside diameter tube which may be polyethylene, polyurethane, nylon, brass, copper or stainless steel.

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