HydroC - CH4 Flow Through Sensor Brochure

HHyyddrrooCC™™// CCHH44 GGeenneerraattiioonn IIII SSppeecc SShheeeett CONTROS Systems & Solutions GmbH Wischhofstrasse 1-3 · 24148 Kiel · Germany phone: +49 (0) 431-260 95 900 · fax: +49 (0) 431-260 95 901 web: www.contros.eu · e-mail: contact@contros.eu Applications In-situ measurement of dissolved CH4 motivated by: Climate Change Studies; Methane Hydrate Studies; Limnology; Profiling/ Moorings; Offshore Risk Management; Pipeline Inspection and Leak detection Detector High-precision optical analysing NDIR system ? Maintenance free Principle Dissolved CH4 molecules diffuse through a silicone membrane into the patented detector chamber, where their number is determined by means of IR absorption spectrometry. Concentration dependent IR light intensities are converted into output signals. Dimension/ Weight 90 d x 376 mm corrosion-free titanium/ 4,7 kg (2,2 kg in water) Operation depth 2000, 4000, 6000 m version available Temperature range 3 … +30°C (Arctic version: -2 … +15°C) Measuring range 100nmol – 50µmol/l (other ranges available) Equilibration time first signal after 5s, T63 < 400 sec (with external pump) Resolution 10 nmol Accuracy ±3% reading (as the total sum of all the errors) Calibration Calibration unit is µmol/l ? signal is derived considering internal sensors for pressure, temperature and humidity ? Recalibration recommended every 12 months Drift correction / Features Dual channel NDIR unit ? Internal Zeroing (zero point calibration) Connector Power supply/ Consumption (@12 VDC) Connector SUBCONN® MCBH8-M Titanium 8-pin ? Others on request Typ. 12 VDC (11 - 24 VDC) (Arctic version: 12 - 24 VDC) ? warm- up phase 8- 30min (depending on water temp)/ Appr. 300 mA + max. 150 mA small external pump (option) + max. 450 mA big external pump (option) Data Interface RS-232C and RS-485 ? Data format ASCII NMEA-0183 Software Windows® Software DETECT™ included (real time data visualization, setting of sensor parameters, download data from internal data logger) ? Adaption to user-software ? Sleep mode function user configurable Options Analogue Output: 0 – 2,5 V (Range / Full-scale can be user-configured) ? Internal or external data logger (µSD card/ CF card) ? external Battery Pack (e.g. 200 Ah Lithium (SAFT LSH 20)) ? Build-in water temperature probe for concentration calculation ? ROV and AUV adaption packages ? Profiling and mooring frames ? HydroC™/CO2 (and/or CH4) Flow Through version for underway (FerryBox) and lab applications ? biofouling protection ? external mounted pump with flow head for faster response time Version 10/2012