Yichun pH meter, pH meter 星枫 instruments, industrial pH meter is provided by 星枫 instruments. Jingdezhen acidity, Xing Feng instrument acidity, pH meter factory direct Nanchang Xing Feng Instrument Co., Ltd. (www.xingfengyiqi.com) 2014 年 new upgrade launched DW-1 pen-oxidation-reduction potential (ORP) Total Operating Instructions: * Remove the electrode protective cover, press the POWER button (red), potentiometer LCD should display; * The potentiometer head portion of the electrode immersed in the solution, careful not to touch the bottom of the beaker solution; * slow agitation to the electrode readings stable reading value; * testing is completed, clean the electrodes with water to remove contamination; dry with filter paper, the next sample can be detected; * When not in use, press the POWER button off, and put the electrode protective sleeve. * Automatic shutdown after pH meter electrode, the second boot time basis having the POWER button; Note: * To ensure the accuracy of the measurement, one week after the industrial pH meter, with a cotton ball to wipe or rinse solution platinum foil; * find potential meter LCD display brightness dims when the need to replace batteries; Technical Specifications: * Measuring range: ± 999mV * Resolution: 1mV * Accuracy: ± 10mV (20 ℃) ??* Ambient temperature: 0 ~ 45 ℃ * Power: 2 × 3V button battery Continuous working time:> 150 (h) * Auto shutdown time: 10min * Dimensions: 147 × 28 × 15 (mm) * Weight: 0.05kg PHB-4 Portable pH meter instrument function backlit LCD display 2 1. simultaneous display of pH, temperature or mV (ORP), temperature 3 with manual temperature compensation pH meter factory direct sales, support two-point calibration 4. novel appearance, easy to carry, easy to operate PHB-4 Portable pH Meter Technical Specification Technical Parameters PHB-4 instrument level measurement parameters pH value of 0.1, mV (ORP) measurement range of pH (0.00 ~ 14.00) pH mV (-1400 ~ 1400) mV supply two AA alkaline batteries