美国CHEMTROL. 2014/6/24 10:44:29
美国CHEMTROL 美国 CHEMTROL 250Easy to install Proportional FeedSimple to use Overfeed Safety TimersAll Functions on Front Panel Waterproot CabinetAdjustable Setpoints 3-year Electronics WarrantyAdjustable Alarms Toll-free Technical SupportAcid/Base Selector The CHEMTROLTM 250 ORP/PH Digital controller automatically maintains both sanitizer ORP (oxidation-reduction potential or Redox)and water PH in poolsand spas. All operating functions are clearly labeled and accessible from the front panel, with safety and easy-reset features not found on other controllers. The defaultPH control level is 7.5. Below 7.4, the water is too acidic and causes corrosion and eye irritation. Above 7.6, It is too alkaline and causes eye irritation plus water cloudiness,scaling, stains and reduced sanitizer efficiency. The default ORP control level is 700 mv. Based on WORLD HEALTH ORGANIZATION (WHO) and NATIONAL SPA AND POOL INSTITUTE (NSP)values for prevention of germs and bacteria. SLMPLE TO OPERATE ORP CONTROL Adjustable from 200 to 995 mvPH CONTROL Adjustable from 4.0 to 10.0READOUTS ORP (3 digits) and PH (2 digits) LEDsFEED MODES Manual, automatic, proportionalADJUSTMENTS Setpoint, calibration, limits, feed rateINDICATOR LEDs for feed mode, feed status, alarmsSSAFETY Audio,visual and remote alarmsOut-of-range limits and overfeed safety timersCABINET Polystyrene 9×7×4 in. (22×18×10cm)ELECTRICAL IN 230VAC/OUT 230VACPLUMBING PVC tees for 1/2, 1-1/2"or 2"lineWARRANTY 3 Years on electronic module 1 year on all other PartsSHIPPLNG 12×12×12-in(30×30×30cm) carton 9 Ibs (4kg) without Pumps