PH meter

PH meter First, performance characteristics: PHS - 25 type pH meter is a digital display pH meter, which uses a blue backlight, two-row LCD digital display can simultaneously display pH, temperature, or potential (mV) values. The instrument applies to universities, research institutes, environmental monitoring, industrial and mining enterprises and other departments of the laboratory sample determined aqueous solution pH value and potential (mV) values, coupled with ORP electrode measurable solution ORP (oxidation - reduction potential) value , coupled with ion-selective electrode can measure the value of electrode potential of the electrode. 2, the main technical indicators: 1, instrument Level: 0.12, Measuring Range: pH 0.00 14.00pH; mV 0 ± 1400mV 3, resolution: 0.01pH, 1mV, 0.1 4, temperature compensation range: 0 60 ; 5, the basic error of electronic unit: pH ± 0.05pH; mV ± 1% (FS) 6, apparatus, basic error: ± 0.1pH; 7, electronic unit input current: less than 1 × 10 - 11 A 8, the electronic unit input impedance: not less than 3 × 10 11 Ω 9, the electronic unit repeatability error: pH 0.05pH mV 5mV 10, instrument repeatability error: not more than 0.05pH 11, electronic unit stability: ± 0.05pH ± 1 word / 3h 12, Dimension: 220 × 160 × 65mm (l × b × h) 13, weight: 0.3kg 14, the normal conditions of use: a) Ambient temperature: (5 50) b) Relative humidity: ≤ 85% c) Power Supply: DC6V d) There was no significant vibration; e) In addition to outside the Earth's magnetic field without external magnetic interference.