二手设备，处正常工作状态    The patented Series 5000 Silica Analyzer is an on-line instrument using the silicomolybdate/heteropoly blue method of analysis for colorimetric measurement of silica at a wavelength of 810 nm. The measurement range is 0.00 to 5000 micrograms/liter (µg/L or parts per billion) as reactive silica (SiO2). Accuracy is ± 1 µg/L or ± 5% of reading, whichever is greater for the 0 to 500 µg/L range and ± 7% of reading for the 500 to 5000 µg/L range. The minimum detection limit is 0.5 µg/L. The analyzer provides a digital display of concentration and is autocalibrating.可做工厂校正，加收￥7500.Specifications:    Range:   0 - 5000 ug/L as SiO2    Accuracy:  0.00 to 500 µg/L; ±1 µg/L or ± 5% of reading, whichever is greater.  500 to 5000 µg/L ± 7% of reading    Response Time:  8.8 minutes for 30 to 50 °C.  15 minutes for 5 to 40 °C    Power Requirement:  115/230 Vac, 50/60 Hz, switch selectable; 52 VA, 32 W maximum      Input/Output:  RS-232 and 20 mA current loop    Dimension:  856 mm (33.72") H x 563 mm (22.2") W x 419 mm (16.5") D    Ambient Operating Conditions:  10 to 45 °C, 5 to 95% noncondensing humidity.  Suitable for general-purpose, clean, indoor environments (not suitable for outdoor use).    Reagent Consumption:  2.9L of each reagent per month with 8.8-minute cycle time.  2.6L of each reagent per seven weeks  Shipping Weight (Lbs.):  70