DWS-51 Universal sodium meter DWS-51 is a sub-file pointer before the show improved form knobs and switches on and non-intelligent design. Coupled with dedicated laboratory ppb level sodium measurement electrode and a reference electrode in a beaker static measurement of performance has greatly improved over conventional sodium table, just pay attention to cleaning the electrode in use, can get a more satisfactory results. Can be widely used for continuous monitoring of sodium ions by thermal power, chemical fertilizer, metallurgy, environmental protection, pharmaceutical, biochemical, food and running water. The main features of double digital display simultaneously μg / L / pNa / mV and temperature. Microprocessor: the use of high-performance CPU chip, high-precision AD conversion technology and SMT technology, to complete the multi-parameter measurement, temperature compensation, high accuracy, good repeatability. High reliability: board structure, touch buttons, no switch knob. Input impedance> 1012Ω. High sensitivity: the static water samples can be detected 0.2ppb (8pNa). Stable for a long time have a very stable reading. Design of water erosion. Network function: RS232 bi-directional communication, can be equipped with a printer or TLab1.0 communications and data processing software. Industrial control watchdog: to ensure that the instrument will not crash. Technical Specifications Display: double digital display simultaneously measuring range: 0.2ug / L ~ 23000mg / L, 0.00 Pa ~ 8.00 Pa, -1999 ~ + 1999 mV, 0 ~ 99.9 ℃ Resolution: 0.1ug / L; 0.1 mV , 0.1 ℃ Repeatability: ± 2.5% of reading accuracy: reading ± 2.5%, ± 0.2 mV, ± 0.3 ℃ continuous and stable time:> 100 seconds detection limit: 0.2ug / L (8pNa) Input impedance:> 1012Ω Warming Range: Auto / Manual 0 ~ 99.9 ℃, the response rate: 32 seconds @ 25 ℃, 50 秒 @ 15 ℃ Communication Interface: RS232 bi-directional communication power supply: AC220V ± 22V, 50Hz ± 1Hz, external power supply operating conditions: ambient temperature 0 ~ 60 ℃, relative humidity ≤90℅ power-down save:> 5 years calibration methods: point calibration, two calibration size, weight: 202x202x68mm, 1.0Kg standard configuration: DWS-51 second table, HT5 power one, 2802 Participation ratio and 2801 each one measuring electrode, T22 temperature electrode an electrode bracket set. Beijing Huarui Bo Yuan Science and Technology Development Company Limited 0 1 0 - 8 0 3 3 6 3 7 3 0 1 0 - 5 8 4 3 1 7 8 1 0 1 0 - 5 9 1 4 5 1 3 1 1 3 4 3 9 369 862 Address: Beijing's Fangshan District, Qin Fu Park Website: http: //www.bjhrby.com