Conductometer-concentration meter
two-channel with contact sensors
C-3122.P
Two-channel analyzer for specific electrical conductivity (SEC) measuringconsists of two passive primary
transducers (sensors) and a two-channel measuring instrument (MI).
The analyzer is monoblock and is intended for replacement of two-unit
devices C-3101М.1 in cases when the length of a communication line with the sensor does not exceed 10 m. It
can be used in water treatment and water treatment plants.
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.
The analyzer is equipped with an archive with a 1-year archiving time.
The analyzer has a user-friendly menu.
The analyzer has the ability to measure the flow rate of a
fluid with a flow sensor having a pulse output signal.
In the panel version, the analyzer has 4 built-in alarm
relays, in the wall-mounted - it can be equipped with an
external unit for 8 relays
(DoM-8.2).
Areas of application: heat power engineering, chemical,
petrochemical and other industries.
Range, units of measurement should be discussed before ordering
Specific electrical resistance measuring range:
- C-3122.1.P3
(0...100) MOhm*cm
Temperature of analysing liquid2)
(+5...+95) ºС
Builded temperature sensor
Pt100, Pt1000
Type of sensor3)
Flow-submersible ECS
Basic accuracy
max. ±2 %
Absolute accuracy, max.:
- within the range (0...+50) °С
±0,5 °С
- within the range (+50...+100) °С
±1,0 °С
Pressure of analyzing liquid
max 1.6 MPa
Length of the cable from the sensor to the MI, max
δ > 100 mS/cm — 5 m,
100 mS/cm > δ > 1000 μS/cm — 10 m;
1000μS/cm > δ — 20 m
Flow measurement range
(1,0...50) l/h
SEC and temperature set points range
across the full measuring range
Thermal compensation types:
- SEC solutions temperature dependence
- ultra-pure water SEC temperature dependence
Measuring range
programmable
Data display
LCD graphics
Output signals:
- 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
4
Number of relays in the wall mounted analyzer with external unit
DoM-8.2
8
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.
Archiving period
1 year
Sensor material
SS316, SS321L, SS904L, titanium ВТ1-00, tantalum
MI enclosure material:
- panel mounted
aluminum alloy
- wall mounted
ABS plastic
Power supply
~(100...240) V, (50...60) Hz
Working power consumption
max 15 VA
Enclosure protection:
- sensor
IP65
- MI enclosure on the front panel (panel mounted version)
IP54
- MI enclosure (wall mounted design)
IP65
MI enclosure (wall mounted design):
- sensor
Т=(-40..+50) °С
- MI
T=(+5...+50) °С
Resistance to mechanical influences in accordance with GOST R 52931:
- sensor
V2
- MI
N2
Weight:
- sensor with 5 m cable
max 1 kg
- MI
max 1 kg
1)Measurement can be performed in units of electrical resistivity MOhm*cm;
2)The upper limit of the temperature of the liquid to be analyzed is determined depending from specific environment
3)To work in contaminated fluids can be applied the next sensors:
SZ 3273.1 When measuring in the ranges (0 ... 80) mS/cm, 80 °C, 1.0 MPa
SZ 3300.1 When measuring in the ranges 200 μS/cm up to 200 mS/cm, 150 °C, 1.0 MPa