五指山DDS-307A laboratory conductivity meter

DDS-307A laboratory conductivity meter

●Overview

DDS-307A is an improved conductivity meter. On the basis of DDS-307 on the market, it adds an automatic temperature compensation function, which has a high cost performance. It can be widely used for continuous monitoring of conductivity values in solutions such as thermal power, chemical fertilizer, metallurgy, environmental protection, pharmaceutical, biochemical, food, tap water.

●Features

● Double-row digital tube: display conductivity value temperature value respectively

● Microcomputerization: using high-performance CPU chip, high-precision AD conversion SMT patch technology to complete multi-parameter measurement, temperature compensation, automatic range conversion, high accuracy good repeatability

● 25℃ conversion: temperature compensation automatic measurement/manual input. Waterproof anti-erosion design

● Network function: RS232 two-way communication, can be equipped with printer TLab1.0 communication data processing software

● Measurable high-purity water: Equipped with a titanium alloy electrode with a cell constant of 0.01 cm-1 a sealed measuring cell. Automatic reminder of measurement end point

●Technical parameters

Display mode: Double-row digital tube displays conductivity temperature value respectively

Measuring range: (1～3000) μS/cm, 0～99.9℃

Electrode constant: 0.01～30μS/cm; (with K=0.01 electrode)

              0.1～300μS/cm; (with K=0.1 electrode)

              1.0～3000μS/cm; (with K=1.0 electrode)

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

Resolution: 0.001μS/cm, 0.1℃

Cell constant: 0.001～15.0 cm-1 set by software

Temperature compensation range: automatic 0～99.9℃, manual 0～99.9℃

Temperature coefficient: 0～10% / ℃ (based on 25℃)

Accuracy: ±1.0%FS, ±0.3℃

Communication interface: RS232 bidirectional communication interface

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

Working conditions: Ambient temperature 0～60℃, relative humidity≤90℅

Power-off preservation:> 5 years

●Standard configuration

One secondary meter, one platinum black conductivity electrode with constant 1.0, one temperature electrode, electrode holder, power supply

●Ordering guide

The constant of the equipped electrode must be informed; for measuring ultrapure water, a K=0.01 electrode a sealed measuring tank are required