Hydrogen Leak Detector for Plate Heat Exchangers
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HLD Series UNIQUE AND RELIABLE The hydrogen leak detector of the HLD series is the perfect instrument for industrial leak detection. It is small, robust, and extremely sensitive to hydrogen gas. It can be used to detect leaks up to 5x10-7 mbarl/s. As it is insensitive to other gases, testing results are 100% reliable. OPTIMAL TRACER GAS Hydrogen being the least expensive tracer gas available, we use a tracer gas mix which contains 5-10% H2. Due to its low viscosity and its small mass, hydrogen spreads extremely fast in the plate heat exchanger, thus reliably detecting even the smallest leak in a minimum of time. (Food and beverage accreditation E949). Hydrogen leak detector for plate heat exchangers 1 secondary side gas filled 2 Hydrogen-molecule-transfer 3 measuring area 4 circulation pump 5 Sensor 0,8mm 1 2 3 Concentration / Time ok Corrosion starts Plate to change Hydrogen Method Advanced identification by material fatigue:

AUTOMATIC SYSTEM HLD600 Product facts: Sensitivity: 0.5 ppm Hydrogen, equivalent to leak rates up to 5x10-7 mbarl/s actual gas mix: tracer gas, 5-10% hydrogen and 90-95% nitrogen reaction time: < 1 sec. Start up time: 1 minute Calibration: Calibration gas or external reference leak. Front panel: Illuminated 256 x 64 pixel LCD, loudspeaker, earphone socket. Green LED for status, Red LED for alarm Rear panel: D-sub connector with status signals 24 V DC / 0,5A Serial Interface (RS232) Maintenance: None Power supply: 100-240 VAC, 50/60 Hz Dimensions: HLD400 275x155x170mm Weight: HLD400 4,6 kg...