The LS-400 is a comprehensive adjustable leak unit suitable for use in calibration laboratories and standards rooms where a wide range of accurate flow rates are required. The unit consists of a rechargeable gas reservoir; the output of which is controlled by a variable pressure regulator; a pressure gauge is included to monitor the gas output to the reference leak and an optional shut off valve can also be fitted to stop gas flow when the leak is not being used. The leak element has a 1/8” BSP thread which can be used to attach a hood or fitting (please enquire) to accommodate the detector’s probe.
The unit includes a rechargeable, stainless steel reservoir of 400cc capacity for a selected gas and high integrity regulator for fine adjustments to pressure and accurate control, over the output flow rate.
Along with a Certificate of Calibration across a full range of flow rates (typically 5-20 grams per year for refrigerant gases) the LS-400 is supplied with a Graph specific to the gas and calibration. The graph provides details of the relationship between the gauge pressure and the output flow rate for a specified gas.