Metrology

The viscometer works under the control of a PC (Laptop). In the dialog mode, the operator sets the parameters necessary for testing liquids. The test results are displayed on a PC display, stored in a database and can be printed on a printer. Technical specifications The range of viscosity determination is from 0 to 1000 MPa ×s. The limits of the permissible relative error in determining the viscosity under normal conditions are 1%. The rotational speed of the measuring nozzle is from 0.1 to 900 rpm. The range of temperature control and determination of the temperature of the tested solutions under normal conditions is from 10 to 50 ° C. The limit of permissible absolute error of temperature control and temperature determination ± 2 °C. Normal operating conditions under which metrological and reliability parameters are normalized: type of current – alternating single-phase; supply voltage – (220 ± 22) V; ambient temperature – from +15 to +25 ° C; AC frequency – (50± 1) Hz; power consumption – no more than 240 VA. Operating conditions under which the additional error in determining the viscosity increases by ½ of the main one: ambient temperature – from +10 to +35 ° C; The electrical insulation resistance between the electrical circuits and the housing at ambient temperature (20 ± 5) ° C and relative humidity (80 ± 3)% is not less than 20 mOhm. The electrical insulation between the electrical circuits and the housing under the conditions of clause 2.8 must withstand an alternating current voltage of 1.5 kV of a sinusoidal shape with a frequency of 50 Hz. Overall dimensions of the viscometer, no more than 160x300x340mm. The average service life is at least 10 years. The mass of the viscometer is no more than 12 kg.

It has: a wide range of calibrated currents and voltages reproduction; wide frequency range at alternating current 20Hz – 20kHz; adjustment of the phase shift angle between current and voltage in the range 0 – 360 °; high accuracy of reproduction of current, voltage, phase shift angle. Normal operating conditions: ambient temperature (23 ± 5) ° C; the relative humidity of the surrounding air is 30-80 %; atmospheric pressure 84 — 106 kPa (630-795 mmHg); supply network voltage (220 ± 4.4) V; supply network frequency 48 — 62 Hz. Operating conditions: ambient temperature from 5 to 40 ° C; relative humidity up to 80 % at temperatures up to 30 ° C; atmospheric pressure 84 — 106 kPa (630 — 795 mmHg) supply voltage (220 ± 22) At a frequency of 48 — 62 Hz; The additional error in reproducing the voltage and strength of direct and alternating current, as well as the power from a change in the mains voltage by ± 10% of the nominal value of 220 V does not exceed half of the corresponding basic error. The additional error from the change in ambient temperature for every 10 ° C does not exceed half of the basic error. The electrical insulation resistance between the power supply circuits of the device and the housing is not less than: under normal conditions of use – 20 Mohm; at elevated ambient temperature — 5 Mom. The device can be used as part of automated measuring systems for various purposes with serial interfaces: RS-232C (EIA-2320) or USB. Overall dimensions: control unit 270 x448.8x496 mm, power unit 270 x448.8x496 mm. Weight: control unit 25 kg, amplifier unit 25 kg.

Device parameters: density measurement range, g/cm3 — with calibrated load — ( 0.8 to 1.7 ) — without calibrated load — ( 1.7 to 2.6 ) the price of dividing the hydrometer scale (main and correction), g/cm3— ( 0.01 ) working medium — water density from 0.96 to 1.039 g/cm3 at temperature, 0C — (from 5 to 50 ) the capacity of the hydrometer cup, cm3 — (78.5 +0.3) the limit of permissible absolute error at the temperature of the test solution, the environment and water 20 +2, g /cm3— (0.01) the mass of the calibrated load, g — (81.58 +0.1 ) overall dimensions of the hydrometer, mm — ( 66x454 ) weight of hydrometer with case, kg — ( 1,450 )

The FGH-1-2 chromatographs have retained the main advantages of the FGH-1 model – mobility and ease of operation and maintenance. At the same time, FGH-1-2 has all the advantages of a modern multichannel chromatograph – the ability to reliably identify and accurately determine the concentrations of various pollutants of environmental objects. The additional use of automatic identification in the processing of chromatograms simultaneously through both channels makes FGH-1-2, in fact, a universal selective gas analyzer of organic substances using the chromatographic separation method. In FGH-1-2, as well as in FGH-1, all methodological problems have been solved: all measurement methods (MI) used are certified, the devices are equipped with sampling devices prescribed in MI, the devices are graded according to the required substances, independent control of the stability of calibration characteristics and measurement errors is provided.

Regulated switching power supplies with highly stable output characteristics Digital display of set and actual value, voltage and current (4 digits, LED) Electronic load switching on/off Protection against overload, short circuit, overheating and reverse polarity Low ripple output voltage less than 2mV Low ripple output current less than 5mA Minimum discreteness of setting output voltage and current 0.007/0.005 Operating modes: stabilization U and I, dynamic load RS-232 interface

Overall dimensions: 550x230x350 mm Weight (without computer): ~17 kg Power consumption: up to 200 watts Warranty service : 1 year   Detector Two-beam spectrophotometer Spectral range – 190-360 nm Simultaneous detection at 1-8 wavelengths Cell volume – 1.2 µl Noise <0.0001 E.O.P. at 250 nm Drift <0.00005 E.O.P./hour at 250 nm Column Ø2x75 mm stainless steel The efficiency of the column is up to 6000 theoretical plates Thermostat Solid-state electric Set temperature from 35 to 90°C The discreteness of the temperature setting is 1 °C Temperature control error ±0.3°C      Pump Two-pronged, gradient The feed rate is from 5 to 1000 µl/min, the maximum pressure is 70 atm . The gradient is formed from 1 to 20 linear sections Automatic doser Automatic, programmable Number of test tubes – 46 The number of analyses in the series is from 1 to 200 The dosed volume is from 1 to 99 µl Test tubes made of glass with a volume of 200 µl Polyethylene tube stoppers Software OS: Windows® XP/7/10 Milichrome A-02™, Multichrome™, Alphachrome, Alphaspectrum

Measuring functions Measurement of absorption, transmission, and reflection spectra Measurement of optical density, transmission coefficient and reflection coefficient at fixed wavelengths Determination of concentration at one, two, three wavelengths by factor, standard, schedule Multi-wave kinetic measurements Determination of concentration by programmed methods Calculation of color and chromaticity coordinates UVI spectrophotometers "SOLAR" operate in the ultraviolet, visible and near infrared regions of the spectrum. They are used in scientific laboratories, healthcare institutions, veterinary medicine, pharmaceuticals, ecology, biology, etc., in laboratories for quality control of products and raw materials in various sectors of the economy (industrial enterprises, agriculture, food industry, etc.) Removable cuvette holders and set-top boxes Accurate measurements Cost-effectiveness Touch screen Built-in printer Software support