Conductometer-concentration meter two channel with inductive sensors
The conductivity concentration meter is a two-channel analyzer for measuring
specific electric conductivity (SEC), which consists of two primary passive transducers (sensors:
proximity inductive) and a two-channel measuring instrument (MI).
The inductive, proximity sensor, made of a material with a high chemical resistance to
acids and alkalis. A strong design and smooth surface of the sensor, as well as flow-through hole of a big diameter
provides a low probability of contamination and a possibility of the sensor easy cleaning, possibility
to work with contaminated liquids.
A built-in temperature sensor provides temperature compensated measurement of the solutions concentration.
The analyzer is designed for measurement and monitoring of high values of specific electric conductivity
(SEC), salts, alkalis and acids solutions.
Following the well known dependences between the SEC and the analyzed component concentration, analyzers may be
used as salinity meters and concentration meters.
The analyzer is equipped with an archive with a 1-year archiving time.
The analyzer has a user-friendly menu. The analyzer provides a digital display of SEC values and temperature, their conversion into proportional values of
uniform DC output signals, data exchange via digital interface RS-485, alarming when the measured parameters
are out of the specified values.
Application: heat power industry, chemical, petrochemical, pulp and paper, food processing, dairy,
brewing and other industries.
- for concentration meters,
depending on the range
at least 5.0% (shall be discussed before ordering)
Operating temperature range for sensors
- SI 315
Temperature for thermal compensation 1)
in accordance with the order (default 25 ºС)
Type of sensor
- SI 315
max 0,3 MPa
max 0,6 MPa
max 1,6 MPa (105 °С); max 0,7 MPa (150°С)
- SI 315
Distance between the MI and the sensor
max 10 m
- current analog, proportional to the measuring ranges of SEC and temperature,
galvanically isolated from the input signals
(0...5), (0...20), (4...20) mA
- digital interface
RS-485, ModBus protocol RTU
- discrete, programmable, actuation
according to SEC or temperature set points
relay with switching over contacts, ~ 240V, 3A
Number of relays in the panel mounted analyzer version
Number of relays in the wall mounted analyzer with external unit
Number of relays in the wall mounted analyzer without external unit DoM-8.2
1 (relay type - optoelectronic relay normally open, =100V, 150mА
parameters of the switched signal can be changed by agreement with the Customer)
Archive recording interval
programmable from 1 second to 1 day.
MI enclosure material:
- panel mounted
- wall mounted
~(100..240) V, (50..60)Hz
max 15 VA
Protection against dust and water:
- MI enclosure on the front panel (panel mounted version)
- MI enclosure (wall mounted version)
Resistance to mechanical influences in accordance with GOST R 52931 (Rus):
- sensor with 3m cable
max 1,5 kg
max 1 kg
1) The reference temperature (°C) and the temperature coefficient (% per °C) are set programmatically.
At the request of the consumer, the manufacturer specifies a specific measuring range. The user can reconfigure the
conductometer to a different range within this model.
At the request of the consumer, another measurement range can be set in the concentration meters intended for measuring the
concentration in accordance with the normalized relationship between the SEC and the concentration of the analyte in the
At the request of the consumer in the concentration meters, indication can be setted in percent or grams per liter in
accordance with the normalized relationship between the SEC and the concentration of the analyte in the solution.