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Introduction

principle

The acid-base concentration meter is mainly used to monitor the concentration of the regeneration liquid of the ion exchanger in the process of producing high-purity water by the ion exchange method, or to prepare the pickling liquid for boilers and pipelines, and to continuously monitor the concentration of hydrochloric acid in the solution.

AE50 is a AE50D-B electromagnetic sensor adapted to the principle of electromagnetic induction. Its probe is non-contact with the measured medium, which avoids the corrosion, pollution and polarization effects of strong corrosive solutions such as acids and alkalis on the electrodes. No zero drift, no need to adjust the curve on site, and almost no maintenance.

The concentration of the solution is indirectly calculated by measuring the conductivity of the solution. It is known that at a constant temperature, the conductivity of the low-concentration electrolyte corresponds to the concentration of the solution. When the concentration remains unchanged but the solution temperature changes, The conductivity also changes, i.e. the conductivity of the solution is a function of concentration and temperature. If the temperature of the solution can be measured and corrected to the conductivity at the standard temperature according to the aforementioned corresponding relationship, it can be directly converted into the concentration of the solution. It should be emphasized that the conductivity of the solution is the sum of the conductivity of all conductive ions in the water. If there are two or more conductive components in the water, and the data of the above concentration-temperature-conductivity can be measured, this method can also be used. meter measurement. If the proportion of the two conductive components in the water cannot be determined, the instrument cannot be used to measure.

AE50 is an electromagnetic induction type conductivity meter. The AC voltage generated under software control drives the excitation transformer immersed in the solution to be tested, and generates an induced current in the solution to be tested, which in turn generates a large amount of current in the detection transformer. The alternating induced potential is proportional to the conductivity of the measured solution. The induced potential is detected and sampled by Mc∪. At the same time, the temperature sensor also sends the solution temperature signal to the MCU for sampling and performs high-precision (corrected every 0.5°C) temperature compensation calculation according to the characteristic curve of the solution in memory. and nonlinear correction operations. The calculated concentration value is displayed on the spot through the display, and at the same time, it is converted into a standard current signal by the DA conversion circuit and transmitted out.

Features

● Automatic temperature compensation, more precise measurement data

● There is no parasitic coupling between the excitation transformer and the detection transformer, strong anti-interference ability, simple adjustment, accurate indication, and no maintenance workload

● The sensor adopts low leakage magnetic structure and ferromagnetic shielding, no zero drift phenomenon in long-term use

● The non-contact detection method fundamentally eliminates the corrosion, pollution and polarization effects of strong corrosive medium on the conductive electrode.

● The use of variable frequency excitation power supply and resonant circuit and its unique signal sampling method greatly improves the accuracy, sensitivity and stability of the instrument

● Display concentration, output current, temperature, time and status on the same screen. Adjustable uniform background light enables clear observation of operation even in dim outdoor conditions.

● Adjustable and uniform background light, the operation can be clearly observed even in the dark outdoor conditions.

● Photoelectric coupling isolation output, good electromagnetic compatibility.

● Chinese display, Chinese menu

application

Chemical, sewage, water supply, power generation, metallurgy, biology, pharmaceutical, paper and other industrial processes.

technical parameter

Measurement:NaOH:0...5.00%
HCI:0...10.00%
NaCl: 0...5.00%
Na2CO3:0...20.00)%
precision;±2.0%FS (the error can be less than 0.05% after calibration of common points)
temperature compensation range;5...55°C
Temperature Sensor:AD590(298.15uA/25°C
Sensor working pressure:≤0.6Mpa
Sensor operating temperature:5...55°C
Display method:LCD liquid crystal display
output method:DC 4...20mA
Output maximum load resistance:500Ω(DC 24V)
Output constant current performance:Converted internal resistance>40MΩ
powered by:DC24±3V, power consumption 0.2A
Protection class:IP65
Ambient temperature:0...60°C
Relative humidity:<85%

Selection table

AE50S-Electromagnetic acid-base concentration sensor

shape

rod sensor

Ring sensor

PTFE external thread type

Polysulfone corrosion-resistant plastic (flow-through)

Process connection

Male thread type Designated thread

Flange seal clip-on seal disc

Top Mounting Flange DN50

cable length

5 m

10m

Other length remarks

Insertion length

Standard length 120mm with thread (for A-type rod sensor)

Specify the protocol length (for B-type ring sensors)
The above selection table does not contain selection codes. For selection, please contact the sales staff or email to sales@kewill-auto.cn to obtain a complete sample.
AE50A-Online electromagnetic acid-base concentration meter (wall-mounted)
AE50B-Online electromagnetic acid-base concentration meter (pan mounted 138*138)

Measuring range

HCI (0.00~10.00)%

NaOH (0.00~5.00)%

NaCl (0.00~5.00)%

Na2CO3 (0.00~20.00)%

Other please special note

Power supply

AC 220V

DC 24V

output and communication

4...20mA current signal

4...20mA current signal + high and low alarm switch

(special option) VARIO

no special options

RS485 communication

Matching IB10 ABS material instrument protection box

Matching IB10 1.4301 (304) material instrument protection box (indoor)

Matching IB10 1.4435 (316L) material instrument protection box (outdoor)

Matching V10 sunshade
The above selection table does not contain selection codes. For selection, please contact the sales staff or email to sales@kewill-auto.cn to obtain a complete sample.
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