RU29376U1 - Automatic measuring system for chemical and physical parameters of the aquatic environment - Google Patents

Description

 . SYSTEM MEASURING CHEMICAL AND PHYSICAL PARAMETERS OF THE WATER ENVIRONMENT AUTOMATIC The useful model belongs to the field of studying the hydrochemical and physical parameters of the aquatic environment and can be used as part of specialized complexes or systems installed on environmental ships, as well as used in stationary conditions for environmental monitoring of natural water bodies and for control of treated wastewater. Various systems are known for analyzing the state of the marine environment 1-10, containing transducers of hydrochemical and physical parameters of the aquatic environment and recording equipment. The equipment provides the collection and processing of data from HFP converters and the registration of processing results. There is also known a device for controlling pollution of the aquatic environment, squeezed in the description of the invention 11 and which is, by technical nature, closest to the proposed one. This device contains conductivity, temperature, pH, Redox, ion-selective and oxygen sensors. The prototype device allows to increase the reliability of the control of water pollution by expanding the functionality by classifying the pollution into groups. IPC G01N 27/00

The problem solved by the utility model is the creation of a simple highly reliable system for measuring the chemical-physical parameters of the aquatic environment, providing a quantitative assessment of these parameters, monitoring the change in parameters over time, processing, archiving and documenting measurement information.

The essence of the utility model lies in the fact that the system measuring the chemical-physical parameters of the aqueous medium is automatic, contains at least one transducer of hydrochemical-physical parameters of the aqueous medium, including interconnected contact transducer of electrical conductivity of the aqueous medium, a temperature transducer, a transducer of hydrogen indicator, converter of the value of the redox potential, reference electrode, mass concentration converter oxygen sensor, a depth transducer, an autonomous bipolar voltage source supplying voltage followers, which are part of a hydrogen indicator transducer, a redox potential converter and a reference electrode, and an analog-to-digital converter with an RS-485 interface controller at the output, as well as the associated with a converter of hydrochemical and physical parameters of the aqueous medium, an electronic computer (PC) with a keyboard connected to the input / output of the computer for Turning the keyboard and monitor connected to the output of a computer to connect the monitor

In addition, in the proposed system:

the contact converter of the electrical conductivity of the aqueous medium is configured to automatically switch the transmission coefficient,

the converter of hydrochemical and physical parameters of the aqueous medium is made with the possibility of hermetically installing a protective casing, made with the possibility of filling with liquid.

The system may also contain at least one additional converter of the hydrochemical and physical parameters of the aqueous medium, which is connected via fjD mn S

-3

serial communication channel with the corresponding additional input-output of the computer.

The essence of the utility model is illustrated by drawings, which depict:

in FIG. 1 - functional diagram of the system;

in FIG. 2 is a side view of the transducer hydrochemical and physical parameters of the aquatic environment;

in FIG. 3 is a front view of a transducer of hydrochemical and physical parameters of an aqueous medium;

in FIG. 4 - an example of the implementation of the contact Converter of the electrical conductivity of the aquatic environment;

in FIG. 5 is an example implementation of a primary temperature measuring transducer;

in FIG. 6 is a functional diagram of a temperature converter;

in FIG. 7 is a functional diagram of a converter of a hydrogen indicator, a converter of a value of a redox potential and a reference electrode;

in FIG. 8 is a functional diagram of a converter of mass concentration of dissolved oxygen;

in FIG. 9 is a functional diagram of a depth transducer.

In FIG. 1-9 are indicated:

1 - converter of hydrochemical and physical parameters of the aquatic environment (PHHFP), 1p - additional converter PHHFP,

2-pin converter of specific electrical conductivity (UEP) of the aquatic environment,

3-threshold block (PB),

4- temperature converter (T),

5- converter of a hydrogen indicator (pH), in c

z ///// - 4 - 8- converter of mass concentration of dissolved oxygen (Oz), 9- converter of depth (N), 10- autonomous bipolar source of supply voltage, 11- analog-to-digital converter with RS-485 interface controller on e , 12-communication line, 13-electronic computer (PC), 14-keyboard, 15-monitor, 16-cylindrical housing ПГХФП, 17- protective cover, 8В- plug, 19- hermetic connector, 20- primary measuring transducer (PIP ) contact converter UEP of the aquatic environment, 21- PIP of the temperature converter, 22- PIP of the converter vodor one indicator, 23- PIP converter of the value of the redox potential, 24- PIP converter of the mass concentration of dissolved oxygen, 25- sensitive element of the reference electrode, 26- PIP of the depth sensor, 27, 28 - current electrodes, 29, 30 - potential electrodes, 31 - dielectric compound, 32- controlled alternator, 33- alternating current amplifier,

36 - copper wire

37.38 - thin-walled cylinders,

39 - case PIP temperature converter,

40 - inclined holes, 41,42 - welds,

43,44 - PIP contacts of the temperature converter, 45 - bridge amplifier of the temperature converter, 46, ..., 48 - voltage followers,

49- current-voltage converter,

50-bridge depth converter amplifier.

51- automatic control system for alternating current generators 32. The system for measuring the chemical-physical parameters of the aqueous medium automatic contains one or more PHCP 1, In (Fig. 1).

Each PHCP 1, In includes a contact converter 2 of the UEP of an aqueous medium, a converter 4 of temperature, a converter 5 of a hydrogen indicator, a converter 6 of the value of the redox potential, a comparison electrode 7, a converter 8 of the mass concentration of dissolved oxygen, a converter 9 of depth, an autonomous bipolar voltage source 10 power supply feeding voltage repeaters 46,47,48, which are part of respectively the transducer 5 of the hydrogen indicator, the transducer 6 of the oxidizing value the renewal potential and the reference electrode 7 (see Fig. 7). Each CCPP 1, In contains an analog-to-digital converter 11 with an RS485 interface controller at the output, as well as a PCC connected with the CCPP of the aquatic environment of the computer 13 with a keyboard 14 connected to the input / output of the computer 13 for connecting the keyboard, and a monitor 15 connected to the output of the computer 13 to connect a monitor,

PIP of the contact converter 2 of the UEP of the aqueous medium, the converter 4 of the temperature, the converter 5 of the hydrogen indicator, the converter 6 of the value of the redox potential, the converter 8 of the mass concentration of dissolved oxygen and the converter 9 depth, as well as the electrode 7 compared to 7Z ///// "

-5-6niya, common for the converter 5 of the hydrogen index and the converter 6, the values of the redox potential are installed in the front of the sealed cylindrical body 16 PHHFP made of a material resistant to aggressive environments, such as stainless steel.

The contact Converter 2 UEP consists of a four-electrode PIP 20 and a measuring circuit (see Fig. 4). PIP 20 has the shape of a streamlined body of revolution, located coaxially to the housing 16 of PHCP 1 (see figure 2) and contains a pair of current electrodes 27 and 28, one of which (27) has a circular shape and is located in the nose of the PIP 20, and the other ( 28) is formed by the PIP body 20, and a pair of ring potential electrodes 29 and 30 located between the current electrodes 27 and 28 coaxial to these electrodes and isolated from each other and from the current electrodes by a dielectric compound 31.

The measuring circuit of the UEP contact converter 2 contains a controlled alternating current generator 32 with a frequency from units of kilohertz to tens of kilohertz with an automatic control system 51 and serially connected alternating current amplifier 33, precision plug 34 and scale amplifier 35.

The controlled alternating current generator 32 is connected to the current electrodes 27 and 28 through a current sensor implemented, for example, in the form of a resistor or current transformer. The automatic control system 51 is connected by its high-resistance input to potential electrodes 29 and 30 and produces a control signal, under the action of which the alternating voltage will change at the output of the generator 32 so that the alternating voltage at the potential electrodes 29 and 30 has a constant value. Similar schemes are well known.

The signal from the output of the current sensor included in the power supply circuit of the current electrodes 27 and 28 is fed to the input of an AC amplifier 33, amplified by an alternating current, then detected by a precision rectifier 34 and amplified by a masng-gab amplifier 35, the gain of which is stepwise controlled from threshold unit 3, the input of which is connected to the output of a large-scale amplifier 35, or

the signal from the computer 13. Amplifier circuits with controlled gain and circuit threshold devices (blocks) are well known.

The temperature Converter 4 includes in its composition PIP 21 connected to one of the known schemes of the bridge amplifier 45 (Fig. 6).

The PIP 21 of the temperature transducer (see Fig. 5) is made of a thin insulated copper wire 36 located between two pole thin-walled cylinders 37 and 38, one of which (37) is formed by a protrusion in the housing of the PIP 21, and the other (38) is hermetically sealed, predominantly laser welded, with the first hollow thin-walled cylinder 37 and the body 39 of the PIP 21, in which inclined holes 40 are made for fluid flow inside the first hollow thin-walled cylinder 37. The tightness of the connection of thin-walled cylinders 37 and 38 is ensured by welding and seams 41 and 42. The connection of the PIP 21c amplifier 45 is carried out using contacts 43 and 44.

PIP 22 of the transducer 5 of the hydrogen indicator is executed in the form of an electrode for determining the hydrogen indicator, to which a follower 46 of the electrode voltage for determining the hydrogen indicator is connected (Fig. 7).

PIP 23 of the converter 6 of the value of the redox potential is implemented in the form of a platinum electrode to determine the value of the redox potential, to which a voltage follower 47 of the platinum electrode is connected to determine the value of the redox potential (Fig. 7).

The sensitive element 25 of the comparison electrode 7 is connected in a circuit similar to the connection circuit of the PIP 22 and 23 (Fig. 7). The output of the comparison electrode 7 is connected to the inputs of the ADC 11, with respect to which the signals from the outputs of the converters 5 and 6 are supplied. The structurally sensitive element 25 of the comparison electrode 7 can be performed, for example, according to certificate 12.

PIP 24 of the transducer 8 of the mass concentration of dissolved oxygen, is executed in the form of a two-electrode cell (Clark cell) to determine the mass concentration of dissolved oxygen, powered by voltage + 0.75V. The output of the PIP 24 is connected to the Converter 49 current-voltage.

, 5 ///// to

-7-8 The depth transducer 9 includes a PIP 26 connected to one of the known bridge amplifier 50 circuits (Fig. 9). PIP depth transducer is made in the form of a tensometric bridge pressure transducer. PIP 21 of the temperature transducer 4, PIP 22 of the transducer 5 of the hydrogen indicator, PIP 23 of the transducer 6 of the value of the redox potential, PIP 24 of the transducer 8 of the mass concentration of dissolved oxygen and PIP 26 of the depth transducer 9, as well as the reference electrode 7 are located in front of the sealed cylindrical body 16 ПГХФП of the aquatic environment around the PIP 20 of the contact converter UEP of the aquatic environment. The outputs of the contact converter 2 of the UEP of the aqueous medium, the converter 4 of the temperature, the converter 5 of the hydrogen indicator, the converter 6 of the value of the redox potential, the converter 8 of the mass concentration of dissolved oxygen and the converter 9 of the depth are connected to the inputs of the analog-to-digital converter 11, the input-output of the RS interface controller -485 is connected by a serial communication channel to the corresponding input / output of the computer 13, which is configured to process data received from azovatelya hydrochemists-physical parameters of aqueous environments, rendering the processed measuring results, archiving and document measurement information (Fig. 1). The PHCFP 1 of the aqueous medium is sealed with the possibility of hermetically installing on the cylindrical body 16 a protective casing 17 filled with the possibility of filling with liquid, for example, through an opening in the casing 17, which is closed by the plug 18. The casing 17 protects the primary measuring transducers from mechanical damage and allows the verification of PHCF. The system may also contain at least one additional PGRC In in the aquatic environment, which is connected by a serial communication channel to the corresponding additional input-output of the computer 13.

The proposed system works as follows.

PHCFP 1 is placed in a stream or at a given point in the aquatic environment, the parameters of which must be controlled. When power is supplied, converters 2, 4, 5, 6, 8, and 9, which are part of the PHCF, generate voltages proportional to the corresponding parameters of the aquatic environment. The output signals of the converters 2, 4, 5, 6, 8, and 9 and the comparison electrode 7 are supplied to the inputs of the analog-to-digital converter 11, converted to digital form, and, upon request, the computers 13 are transmitted via the communication line 12 in accordance with the RS-485 interface protocol to A computer 13 in order to obtain the values of the original hydrochemical parameters expressed in appropriate units.

The change in the measurement range of the UEP is carried out automatically, while in order to monitor the state of the set range, an electric signal arrives at the input of one of the inputs of the analog-digital converter, the value of which corresponds to the set range (Fresh - low level of UEP, and Solyony - high level of UEP). Switching the measuring range of the UEP is carried out automatically either by means of a threshold unit 3 or by commands received from a computer 13 via a communication line 12.

A computer 13 with appropriate software performs the function of a computing component of an automatic system. The computer 13 processes the data received from PHCFP, visualizes the processed measurement results on the monitor 15 in the form of their numerical values and time graphs of the signals for each parameter, archiving and documenting the measurement information in the memory of the computer 13.

A computer 13 performs the determination of the chemical-physical parameters of the aqueous medium using the following algorithms.

The Converter 4 converts the temperature into an electrical signal. To determine the temperature, the inverse transformation algorithm includes an increase in the linear function

-10T a3 (T BJ + a4), (1)

where T is the measured temperature, ° C;

a3 is the conversion coefficient of the converter 4, ° C-B; A4 - the value of the bias voltage at the output of the Converter 4, V; - the value of the voltage at the output of the converter 4, B. The coefficients a3 and a4 are determined during the calibration process at the output of the converter 4 and are confirmed by verification results.

A possible range of a3 values is from 5 to 15 ° C-B. The initial value is 10 ° C-B.

The possible range of values for a4 is from minus 2 to plus 2 V. The original value is about B.

Converter 2 UEP converts the value of the UEP into an electrical signal. To ensure the required measurement accuracy, the UEP channel has two measuring ranges. The value of the measured UEP, at which there is a switch from one range to another, lies in the range from 0.6 to 0.8 S / m. Range switching and selection of the processing algorithm is performed automatically.

To determine the UEP, the inverse transformation algorithm includes the calculation of the function

% (al- (+ aO) + a2- ()) -lO, (2)

where% is the measured conductivity, cm;

aJ is the conversion coefficient of converter 2, mSm-m-B; XfBJ - voltage value at the output of the converter 2, V; aO - the value of the bias voltage at the output of the Converter 2, V; A2 is the conversion coefficient of the quadrature component, mSm-m-B. The coefficients aO, al and a2 are determined during the calibration of the transducer 2 and are confirmed by the results of verification. For the Fresh range: x - the possible values of aO are from minus 1 to nilus 1 V. The initial value is equal to O In; - possible al values are from 40 to 300 mS-m -V; The initial value is 130 mS-m -V; - possible values of a2 are from O to 200 mSm-m -V. The initial value is O mSm-m -V. For Dianazone Salty: - the possible values of aO are from minus 1 to plus 1 V. The initial value is equal to O In; - possible al values are from 300 to 2000 mS-m-B. The initial value is 1300 mSm-m-B; -possible values of a2 are from O to 200 mSm-m-B. The initial value is O mSm-m-B. To determine the hydrogen index, the inverse transformation algorithm, in addition to the linear function, contains an expression that takes into account the temperature dependence of the pH sensor alO + (pH BJ / -10 - (2035 + all)) / (al2- (T + 273.15) -0.1984), (3 ) cdR is the concentration of hydrogen ions, units pH aY is the pH value of the isopotential point PIP 22, units pH - the voltage value at the output of the Converter 5 relative to the voltage at the output of the comparison electrode 7. IN; all - offset of the isopotential point of the PIP 22 relative to the nominal value, mV; al2 - deviation of the value of the conversion coefficient of the PIP 22 relative to its nominal value, mV-unit. pH T is the temperature, ° C.

- for aY - from O to 5 units. pH The coefficient value is determined by the manufacturer and is not subject to adjustment during operation. The initial value is 1.4 units of pH;

-for all - from minus 100 to plus 100 mV. The initial value is O mV;

- for al2 - Y10.7 to 1.3. The initial value is 1.

To determine the value of the redox potential, the inverse transformation algorithm contains only a linear function

Eh I (f-a9 + a8, (4)

where Eh is the measured redox potential, mV;

 - the voltage value at the output of the Converter 6 relative to the voltage at the output of the electrode 7 of comparison. IN;

A9 - conversion coefficient of the Converter 6; a8 - the offset value of the redox potential at the output of the Converter 6 relative to the true value, mV.

The coefficients a8, a9 are determined during the calibration of the transducer 6 and are confirmed by the results of verification. Possible ranges of coefficient values are:

- for a8 - from minus 100 to plus 100 mV. The initial value is O mV;

- for a9 - from 0.9 to 1.1. The initial value is 1.0.

To determine the content of dissolved oxygen concentration, the inverse transformation algorithm contains a linear function and an expression that takes into account the dependence of the membrane permeability of the PIP 24 on the ambient temperature

02 a5-10- () -e. (5)

where Og is the measured concentration of dissolved oxygen, mg-l; a5 is the conversion coefficient of the Converter 8, mg-l-B; - the voltage value on the Converter 8, V;

 l / 9.

a6 - the value of the bias voltage at the output of the Converter 8, V;

a7 - temperature coefficient of permeability of the membrane PIP 24, ° C;

T is the temperature, ° C.

The coefficients a5, ab, aL are determined during the calibration of the transducer 8 and are confirmed by the results of verification. Possible ranges of coefficient values are:

- for a5 - from minus 10 to minus 0.1 mg-l-B. The initial value is minus 1 mg-l-B;

- for a6 - from minus 0.5 to plus 0.5 V. The initial value is O B;

- for a - from 1000 to 5000 ° C. The coefficient value is determined by the manufacturer and is not subject to adjustment during operation. The initial value is 3900 ° C.

To determine the immersion depth, the inverse transformation algorithm, in addition to the linear function, contains an additional expression characterizing the dependence of the depth measurement results on the medium temperature

H a14- (+ al3) / (al5- (l + al6-T)), (6)

where H is the measured depth, m;

al4 is the conversion coefficient of the Converter 9,

 - the voltage value at the output of the Converter 9, V;

and 13 is the value of the bias voltage at the output of the converter 9, V;

and 15 - the shift of the value of the coefficient of temperature dependence on the current temperature;

and 16 - coefficient of temperature dependence of strain gauges PIP 26, ° C;

T is the temperature, ° C.

The coefficients al3, al4, al5, al6 are determined during the calibration of the transducer 9 and are confirmed by verification results. Possible ranges of coefficient values are:

// - 13-for al3 - from minus 1.0 to plus 1.0 V. The initial value is O B;

- for al4 - from 20 to 250 mV. The initial value is 50

- for al5 - from 0.5 to 1.5. The initial value is 1;

- for al6 - from O to 0.01 ° C. The initial value is equal to O ° C

To determine salinity, the salinity calculation algorithm contains the expressions S sl + / 52, (7) si 0.008 - 0.1692-r + 25.3851-r + 14.0941-r - 7.0261-r + 2.7081-r, (8) r Z / Zt, (9), 2- (0.6766097 + 2.00564-10 -T + I, 104259-10- -f-6.9698-10- -T + J,), ( lQ} f (T-15) / (l + 0.0162- (T-15)), (11) s2 0.0005 - 0.0056-r - 0.0066-r - 0.0375-r + 0.0636 -r - 0,0144-r, (12) where S is the salinity value, ppm;; is the UEP value, mS / m; T is the temperature value, ° С. The salinity calculations according to the above algorithm are correct for sea water with a constant salt Composition: In fresh water bodies and during anthropogenic pollution, the calculated salinity values may differ from the true degree In all cases, when calculating salinity, the UEP component of water, which depends on temperature changes, is compensated and the component associated with the salt composition of the water is determined. The prototype system was made at the applicant plant. Tests of the prototype confirmed the high reliability of the system for measuring chemical physical parameters of the aquatic environment in the stream or at a given point, the ability to quantify these parameters, monitor the change in parameters over time, processing, archiving and okumentirovanie measurement information. v use it as part of specialized complexes or systems installed on environmental vessels, as well as used in stationary conditions for environmental monitoring of natural water bodies and for monitoring treated wastewater, which characterizes the utility model as industrially applicable. REFERENCES 1.V. P. Butorin et al. Equipment for collecting and processing information for automatic monitoring stations of environmental monitoring systems, such as ANKOS / Sat. doc. Seminar Automation of pollution control. - M.: MDNTP. - 1988. 2. Water Quality Monitoring System / Nihon Musen Quiet // GRE Rev. - 1988, No. 26.-C. 14-20. 3. System for monitoring surface water / Fukuchi Mitsuo, Hottori Hitoshi. - Proc. NIPR Symp. Polar Biol. -1987.1. - C. 47-55. 4.Burr P. An instrumented imderwater towed vehicle. Oceanology Internationale 69. Conf. technical sessions, day 1. - Brighton. - 1969 (England). 5.Analysis of Exploration of Mining Technology for Manganese Nodyles / Seabed Minerals Sessions. - Vol. 2. - United Ocean Economics and Technology Branch (Published in cooperation with the United Nations by Graham & Trotman Ltd.). -1984. - P. 20, fig. 3. 6. RF patent JVb 2030747 for the invention, IPC G 01 N 33 / 18,1990. 7.Svdeg. RF № 301 for a utility model, IPC V 63 V 38 / 00.1993. 8. Witness. RF № 2797 for a utility model, IPC V 63 V 35 / 00.1996. 9. Witness. RF № 3041 for a utility model, IPC G 01N 27 / 00.1996. 10.Aut. Svideg. USSR No. 1029063 for the invention, IPC G 01 N 27 / 02.1981. 11. RF patent No. 1837217 for the invention, IPC G 01 N 27 / 00.1990. (prototype). 12. Witness. RF № 8480 for a utility model, IPC G 01N 27 / 00.1998.

Claims (4)

1. The measuring system of the chemical-physical parameters of the aqueous medium is automatic, characterized in that it contains at least one transducer of the hydrochemical-physical parameters of the aqueous medium, including a contact transducer of electrical conductivity of the aqueous medium, a temperature transducer, a hydrogen indicator, a value converter redox potential, reference electrode, transducer of mass concentration of dissolved oxygen, convert depth gauge, autonomous bipolar power supply source, supply voltage followers included in the converter of the hydrogen indicator, the converter of the value of the redox potential and the reference electrode, and an analog-to-digital converter with an RS-485 interface controller at the output, as well as a hydrochemical connected to the converter -physical parameters of the aquatic environment electronic computer (PC) with a keyboard connected to the input / output of a computer for connecting a keyboard, and a monitor m connected to the output of the computer for connecting the monitor, while the primary measuring transducers of the contact transducer of specific electrical conductivity of the aqueous medium, a temperature transducer, a transducer of a hydrogen indicator, a transducer of the value of redox potential, a transducer of the mass concentration of dissolved oxygen and a depth transducer, as well as a reference electrode common to the hydrogen indicator converter and the oxidation-reduction value converter of potential, installed in the front of the sealed cylindrical body of the transducer of hydrochemical and physical parameters of the aqueous medium made of a material resistant to aggressive environments, the primary measuring transducer (PIP) of the contact transducer of electrical conductivity of the aqueous medium has the shape of a streamlined body of revolution, located coaxially with the body transducer of hydrochemical and physical parameters of the aquatic environment and contains a pair of current electrodes, one of which it has a circular shape and is located in the nose of the PIP of the contact converter of electrical conductivity, and the other is formed by the housing of the PIP of the contact converter of electrical conductivity, and a pair of ring potential electrodes located between the current electrodes coaxial to these electrodes and isolated from one another and from the current electrodes, PIP the temperature transducer is made of a thin insulated copper wire located between two hollow thin-walled cylinders, one of which formed by a protrusion in the housing of the PIP of the temperature transducer, and the other is hermetically sealed, mainly laser welded, with the first hollow thin-walled cylinder and the body of the PIP of the temperature transducer, in which inclined openings for fluid flow inside the first hollow thin-walled cylinder are made, the PIP of the hydrogen transducer is made an electrode for determining a hydrogen index, to which a voltage follower of the electrode is connected for determining a hydrogen index, PIP p the transmitter of the value of the redox potential is made in the form of a platinum electrode to determine the value of the redox potential, to which a voltage follower of the platinum electrode is connected to determine the value of the redox potential, the PIP of the converter of mass concentration of dissolved oxygen is made in the form of a two-electrode cell for determining the mass concentration of dissolved oxygen to the output of which a current-voltage converter is connected Depth, PIP of the depth transducer is made in the form of a tensometric bridge pressure transducer, primary measuring transducers of a temperature transducer, a hydrogen transducer, a redox potential transducer, a dissolved oxygen mass concentration transducer and a depth transducer, as well as a reference electrode are located in front of the sealed cylindrical housing transducer of hydrochemical and physical parameters of aqueous media Around the PIP of the contact converter for the specific electrical conductivity of the aqueous medium, the outputs of the contact converter of the specific electrical conductivity of the aqueous medium, the temperature converter, the converter of the hydrogen indicator, the converter of the value of the redox potential, the reference electrode, the converter of the mass concentration of dissolved oxygen and the depth converter are connected to the inputs of the analog digital converter, the input-output of the RS-485 interface controller is connected via edovatelnym communication channel with the corresponding input-output computer which is adapted to process data received from the transmitter hydrochemists-physical parameters of the aqueous medium treated visualization of measurement results, archiving and document measurement information. 2. The system according to claim 1, characterized in that the contact Converter of the electrical conductivity of the aqueous medium is configured to automatically switch the transmission coefficient. 3. The system according to claim 1, characterized in that the converter of the hydrochemical and physical parameters of the aqueous medium is made with the possibility of hermetically installing a protective casing made with the possibility of filling with liquid on the cylindrical body. 4. The system according to claim 1, characterized in that it contains at least one additional transducer of hydrochemical and physical parameters of the aqueous medium, which is connected by a serial communication channel to the corresponding additional input / output of the computer.