Conductometer – concentration meter for nuclear power plants
C-3101М.х.NP
Conductivity analyzer is a single channel measuring device which consists of
a primary transducer (PT) and a measuring instrument (MI). The analyzer is developed on
the basis of C-3101М and is designed for use in severe environmental conditions, as to seismic resistance, climatic
conditions, radiation resistance, difficult situation for electromagnetic compatibility (EMC). For use in the radiation zone the sensor shall be removed from the PT electronic unit by means of a special cable (split
design of the primary transducer).
The sensors design allows to use them to control SEC of
high temperature liquids, for example, in the evaporating units.
Application: nuclear power industry, as well as other industries that require a super
reliable measuring of specific electric conductivity (SEC) or the concentration of aqueous
solutions of salts, alkalis and acids.
Thermocompensation range relatively the reference temperature
±15 °С
Material of sensor
SS316, SS321, SS904, titanium ВТ1-00, tantalum
PT electronic unit enclosure material
SS321
Viscosity of the analyzed liquid
max 0,2 Pa*sec
Pressure of the analyzed liquid
< 1,6 MPa (under T < +95°С); < 0,6 МПа (under 95°С < T < +120°С)
Sensor type
flowing or submersible
Degree of protection against water and dust
IP65
Climatic version in accordance with GOST 15150 (Rus):
Т=(-40..+50) °С; PT is resistant to mold fungi
Seismic resistance
Category II for NP-031-01 (Rus)
Resistanse to electromagnetic influence
IV by GOST 32137 (Rus), criterion A
Resistance to radiation:
- absorbed dose rate of the sensor
max 1,3·105 Gy
- The electronic block of PT is resistant to the effect of the integral absorbed dose
of ionizing radiation
max 150 Gy
Stability to mechanical influences in accordance with GOST 12997 (Rus)
V2
Weight:
- electronic unit PT
3,5 kg
- sensor with a depth of immersion of 400 mm
1,0 kg
MEASURING INSTRUMENT
Display
LED, four-digit, seven-segment
Display color
green or red
Output signal
- аналоговый
(0...5) or (4...20) mA (according to order)
- two discrete
switching dry contact, ~240V, 3V
Input signal (signal from PT)
digital impulse current
Communication line between PT and MI is four-wire
- wire cross-section
at least 0.35 mm2
Communication line length
max 800 m
Power supply
~ (100...240) V, (50...60) Hz
Power consumption
max 15 VА
Climatic version of MI according GOST 15150 (Rus)
Т=(+5..+50) °С
Resistance to mechanical influences in accordance with GOST 52931 (Rus)
N2
Масса
max 0,7 kg
1) Upper measuring limit for contact submercible sensors 100 mS/cm; 2) The upper limit of the temperature of the analyzed liquid is determined depending on the specific medium. 3) The reference temperature of termocompensation(°C) and the temperature coefficient (% / °C) are set programmatically.
The measuring instrument has a double galvanic isolation between the input and output .