Technical indicators

　　I. Display mode: Chinese liquid crystal display, Chinese menu operation.

　　II.Measuring range:

　　Electrode constant x (1～20000)μS/cm, 0～99.9℃;

　　1) 0.01～200μS/cm; (with 0.01 electrode);

　　2) 0.1～2000μS/cm; (with 0.1 electrode);

　　3) 1.0～20.00mS/cm; (with 1.0 electrode);

　　4）10～200.0mS/cm；（with 10.0 electrode）.

　　III. TDS: 0.0～19.99g/L; Salinity : 0.0～80.0 ppt.

　　iv. Resolution : 0.001μS/cm, 0.1℃.

　　V. Electrode constant: 0.001～15.0 cm-1 set by software.

　　vi. Temperature compensation range: automatic / manual 0 ~ 99.9 ℃.

　　VII. Temperature coefficient: 0 ~ 10% / ℃ (25 ℃ as the basis).

　　VIII. Accuracy: ± 0.5% FS, ± 0.3 ℃.

　　IX. Communication interface: RS232 bidirectional communication.

　　X. Power: 4 X 3.6V rechargeable lithium-ion battery.

　　XI, working time (fully charged): 24 hours of continuous use.

　　XII, intelligent random charging seat with charging indication and full power indication.

　　XIII, working conditions: ambient temperature 0 ~ 60 ℃, relative humidity ≤ 90 ℅.

　　XIV, power-down storage: > 5 years.

　　XV. Clock accuracy: ± 1 minute / month.

　　XVI, size, weight: 202x202x68mm, 1.0Kg.

Standard configuration

　　DDS-801B secondary meter, one, random charging stand, one, CP-0.01 conductivity electrode, one, CP-0.01 flow cell, one.

Main features

　　High reliability: single board structure, touch keys, no switch knob and potentiometer. Automatic conversion of measurement frequency: avoid electrode polarization and improve measurement accuracy. Phase-sensitive detector design: eliminate the influence of wires on the measurement. 25℃ conversion: temperature compensation is automatically measured/manually input. Data storage function: 5000 points can be stored. Notepad function: Record 200 pieces of information. Industrial control type watchdog: ensure the meter will not crash.