DDS-307 precision conductivity meter DDS-307 is an improved conductivity meter, DDS-307 in the market based on the increase in automatic temperature compensation function, with a higher cost. Can be widely used for continuous monitoring of thermal power, chemical fertilizer, metallurgy, environmental protection, pharmaceutical, biochemical, food and running water, and the solution conductivity values. The main features of double digital: show conductivity and temperature values. Microprocessor: the use of high-performance CPU chip, high-precision AD conversion technology and SMT technology, to complete the multi-parameter measurement, temperature compensation, automatic conversion range, high accuracy, good repeatability. High reliability: board structure, touch buttons, no switches knobs and potentiometers. Automatic conversion measurement frequency: avoid electrode polarization, improve measurement accuracy. Convert 25 ℃: Temperature compensation Automatic Measurement / manual input. 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 can measure high water will not crash: a very constant distribution titanium electrode and sealing measuring cell of 0.01 cm-1. Automatically prompts measuring end. Technical Specifications Display: double digital conductivity and temperature values ??are displayed measuring range: Cell constant × (1 ~ 3000) μS / cm, 0 ~ 99.9 ℃ electrode constant x (1 ~ 20000) μS / cm, 0 ~ 99.9 ℃ 0.01 ~ 20μS / cm; (with 0.01 electrode); 0.1 ~ 200μS / cm; (with 0.1 electrode); 1.0 ~ 20.00mS / cm; (with 1.0 electrode); 10 ~ 200.0mS / cm; (with 10.0 electrode) ; Resolution: 0.001μS / cm, 0.1 ℃ Note: Wide range: Cell constant x (10 ~ 20000) μS / cm (ordering specify). Resolution: 0.001μS / cm, 0.1 ℃ electrode constant: 0.001 ~ 15.0 cm-1 run by software settings Warming Range: Auto / Manual 0 ~ 99.9 ℃ Temperature coefficient: 0 ~ 10% / ℃ (25 ℃ as the benchmark ) Accuracy: ± 1.0% FS, ± 0.3 ℃ Communication Interface: RS232 bi-directional communication interface Power: AC220V ± 22V, 50Hz ± 1Hz, external power supply operating conditions: ambient temperature 0 ~ 60 ℃, relative humidity ≤90℅ power-down save: > 5 years size, weight: 202x202x68mm, 1.0Kg 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 1,451,311,343,936,986 2 Address: Fangshan District Qin Fu Park Website: http: //www.bjhrby.com