DDS-11D/11C/11A Conductivity Meter

NegotiableUpdate on 05/22

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

In China, the DDS-11X series conductivity meter has been around for decades and has almost become a representative of low-end conductivity. The rough casing, numerous switches and knobs on the panel, and segmented pointer display are typical features of this type of watch. The DDS-11X series conductivity meter we launched adopts a highly integrated single-chip microprocessor, with all functions digitized, high measurement accuracy, stable performance, practical simplicity, and high reliability, completely eliminating the weaknesses of "low price, poor performance, and few functions" of this model. Its low price and good measurement performance will meet the needs of many users. It can be widely used for continuous monitoring of conductivity values in solutions such as thermal power, chemical fertilizers, metallurgy, environmental protection, pharmaceuticals, biochemistry, food, and tap water.

Product Details

TECHNICAL INDEX

1、 Display mode: Double row digital tubes display conductivity and temperature values respectively

2、 Measurement range:

Electrode constant × (1-3000) μ S/cm, 0-99.9 ℃

1) 0.01-30 μ S/cm; (with 0.01 electrode);

2) 0.1-300 μ S/cm; (with 0.1 electrode);

3) 1.0-3000 μ S/cm; (Equipped with 1.0 electrode);

4) 10-30000 μ S/cm; (Equipped with 10.0 electrodes);

Note: Wide range: electrode constant x (10-20000) μ S/cm (specified in order).

3、 Resolution: 0.001 μ S/cm, 0.1 ℃

4、 Adjustable electrode constant:

1) DDS-11D 0.001-15.0 cm-1

2) DDS-11C 0.05-15.0 cm-1

3) DDS-11A 0.5-1.5 cm-1

5、 Temperature compensation range: Manual 0-99.9 ℃ (DDS-11A without temperature compensation)

6、 Temperature coefficient: 0-10%/℃ (based on 25 ℃)

7、 Accuracy: ± 1.5% FS

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 off storage:>5 years

12、 Size and weight: 202x202x68mm, 1.0Kg

Standard configuration

One DDS-11X secondary meter, one HT5 power supply, one CP-1.0 conductive electrode, and one set of electrode brackets.

main features

Double row digital tube: displays conductivity and temperature values separately. Microcomputerization: Using high-performance CPU chips, high-precision AD conversion technology, and SMT surface mount technology, it completes multi parameter measurement, temperature compensation, and automatic range conversion with high accuracy and good repeatability. High reliability: Single board structure, touch sensitive buttons, no switch knob or potentiometer. Automatic conversion of measurement frequency: avoids electrode polarization and improves measurement accuracy. 25 ℃ conversion: Temperature compensation manual input (DDS-11A without temperature compensation). Waterproof and anti-corrosion design. Network function: RS232 bidirectional communication, compatible with printer or TLab1.0 communication and data processing software. Industrial control watchdog: ensures that the instrument does not crash and can measure high-purity water: DDS-11D with titanium alloy electrode and sealed measuring cell with electrode constant of 0.01cm-1. Automatically prompt the measurement endpoint.

TLab1.0 software displays instrument parameters, measured values, and curves

The difference among the three is the range of electrode constants.

DDS-11A does not have temperature compensation.

DDS-11A single row digital display.

Ordering Guide

The constant of the electrode must be informed.