DDG-403BA conductivity meter (dual detection)

DDG-403BA conductivity meter (dual detection)

Overview

The DDG-403BA intelligent conductivity monitoring instrument is an intelligent conductivity measurement and control instrument that uses a microcontroller for measurement and compensation, and adopts a Chinese menu style prompt operation. It has dual point detection, fully automatic temperature compensation, and monitoring control functions. This machine is also equipped with an RS-232C standard serial communication interface output, which can communicate data with intelligent instruments with RS-232C standard serial ports, such as computers, printers, recorders, remote consoles, etc. It is matched with our DY-301B conductivity (resistance) printer, which can print and record measurement data. It is widely used for online conductivity measurement and monitoring in the water production industry, including electronics, chemical, pharmaceutical, electromechanical, nuclear energy, drinking water, etc. This instrument adopts an open hole insertion installation, which has the characteristics of wide compensation range, accurate and stable measurement, and convenient use and installation. It is a new generation of intelligent instrument for conductivity measurement and monitoring.

Main characteristics of the instrument

Using MCU technology for automatic compensation of temperature coefficient of aqueous solutions (including general electrolyte solutions and pure water), with precise data processing;

The instrument has two measurement channels (A and B channels), which can simultaneously monitor two different measurement points, making it particularly suitable for monitoring the inflow, pretreatment, and outflow of water treatment equipment;

The large screen dot matrix backlit LCD display can simultaneously display the conductivity values and desalination rates of two measurement points. Users can choose measurement data with or without temperature compensation screens according to their needs. When temperature compensation is selected, the measurement data will be automatically converted to the value at 25 ℃ by the instrument;

Both channels have (4~20) mA current signal output, which can be set freely within the range of up and down operating conditions;

Equipped with RS-232C standard serial communication function, it can communicate data with intelligent instruments with RS-232C standard serial communication interface, such as computers, printers, recorders, remote consoles, etc. Equipped with our DY-301B conductivity (resistance) rate printer, it can print real-time data from two measurement channels. If the communication software CD from our factory is selected, it can establish a communication connection with the user's computer and perform printing and saving;

● It has two channel conductivity upper limit alarm functions;

The instrument has multiple working parameters such as electrode constants, temperature compensation coefficients, alarm settings, alarm delay, clock settings, printing time intervals, and adjustable 4-20mA range for two channels. Users can modify the parameters according to actual situations, and the instrument also has power-off protection function;

Real time clock and display of year, month, and day;

Main technical indicators

Measurement range:Channel A: 0-2000 μ S/cm; B channel: 0-200.0 μ S/cm;

Instrument level:1.0 level;

Automatic temperature compensation:Compensation range: 0-60 ℃, compensation benchmark: 25 ℃;

Display mode:Select a 56 × 38 (mm) large screen dot matrix backlit LCD display with Chinese menu style prompts for operation;

Electrode configuration:

Channel A: Constant 1.00cm^-1Plastic platinum electrode with a lead length of 5m;

B channel: constant 1.00cm^-1Plastic platinum electrode with a lead length of 5m;

Electrode connection method:4 'pipe type thread;

Output signal:（4~20）mA， Maximum load: 500 Ω; (Active)

Alarm relay contact capacity:6A, 250V AC (no inductance);

Instrument size:

Frame size: 98 × 98 (mm)

Hole size: 91 × 91 (mm)

Instrument depth: 140 (mm)

Product standards:Q/TDCB01；