DDS-307 is an improved conductivity meter, based on the market DDS-307 added temperature automatic compensation function, has a high cost-effective. It can be widely used in continuous monitoring of conductivity values in solutions of thermal power, chemical fertilizer, metallurgy, environmental protection, pharmaceutical, biochemical, food and tap water.

Technical specification

　　1. Display mode: double rows of digital tubes display conductivity and temperature values respectively

　　2.Measuring range:

　　Electrode constant × (1 ~ 3000) μS/cm, 0 ~ 99.9 ℃

　　1）0.01～30μS/cm ; (with 0.01 electrode)

　　2）0.1～300μS/cm ; （with 0.1 electrode）;

　　3）1.0～3000μS/cm ; （with 1.0 electrode）;

　　4）10～30000μS/cm ; （with 10.0 electrode）;

　　Note: Wide range: Electrode constant x (10～20000) μS/cm (order specified).

　　3. Resolution: 0.001 μS/cm, 0.1 ℃

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

　　5. Temperature compensation range: automatic / manual 0 ~ 99.9 ° C

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

　　7. Precision: ± 1.0% FS, ± 0.3 ℃

　　8. Communication interface: RS232 bidirectional communication interface

　　9. Power supply: AC220V ± 22V, 50Hz ± 1Hz, external power supply

　　10.Working conditions: ambient temperature 0 ~ 60 ℃, relative humidity ≤ 90 ℅

　　11. Power-down preservation: >5 years

　　12. Size, weight: 202x202x68mm, 1.0Kg

Standard configuration

　　DDS-307 secondary meter, HT5 power supply, CP-1.0 conductivity electrode, T22 temperature electrode, electrode bracket.

Main features

　　Double rows of digital tubes: display the conductivity value and temperature value respectively. Microcomputerization: Adopting high-performance CPU chip, high-precision AD conversion technology and SMT patch technology to complete multi-parameter measurement, temperature compensation, range automatic conversion, high precision and good repeatability. High reliability: single board structure, touch keys, no switch knob and potentiometer. Automatic conversion of measurement frequency: avoid electrode polarization, improve measurement accuracy. 25°C conversion: temperature compensation automatic measurement/manual input. Waterproof and anti-erosion design. Network function: RS232 bidirectional communication, can be equipped with printer or TLab1.0 communication and data processing software. Industrial controlled watchdog: ensure the meter will not crash Measurable high purity water: titanium electrode with distribution pole constant 0.01 cm-1 and sealed measuring cell. Automatic indication of the end point of the measurement.

TLab 1.0 software displays instrument parameters, measured values and curves

Ordering Guidelines

　　The constants of the electrodes to be distributed must be indicated.