Name

Conductivity meter

Model

QBS-CM

NSB-CM

Explosion
proof
construction

Non-explosion-proof

Intrinsically safe construction(i3nG5)

Object
to be
measured

Conductivity of a liquid

Description

This device is designed for manufacturing processes to measure the electrical conductivity of liquids with variable conductivity (electro-conductivity) such as reacted liquid in-process and online, and to output as a standardized signal.
Measuring conductivity in real time provides an indicator for determining the reaction conditions of the object being measured and helps manufacturers improve product quality, production efficiency and stability. This conductivity meter employs an open probe for use with liquids that conventional probes are unable to cover.

Operating
principles

The measurement circuitry is an impedance bridge circuit, one side of which is connected to a transducer to output a standardized signal of conductivity.

Specifications
Measurement system Impedance bridge measurement system
Measuring range 0~100S/m
※ Intermediate range can also be measured.
Temperature compensation Temperature coefficient of measurement liquid (Conductance)
(Within 0~0.45 deg ) ※ Set the specified temperature.
Output signal DC4~20mA DC1~5V ※ One of the above signal
Input power Model QBS-CM (Model PS-0CM): AC105V/210V 50/60Hz or DC24V
Model NSB-CM (Model PS-2):    AC105V/210V 50/60Hz
Power consumption 10W
Allowable temperature Detector: +10℃~+300℃ (Depends on the specifications)
Transducer:  Model PS-0CM: -10℃~+50℃
Transducer:  Model TR-2CM: -25℃~+70℃
Power source: Model PS-2:    -10℃~+50℃
Special cable:  Model DSC-15 (high accuracy use):   -10℃~+60℃
Special cable:  Model DSC-05 (small size):      -10℃~+60℃
Special cable:  Model DSC-13 (heat resistance use): -50℃~+200℃
Allowable load Depends on the specifications
Allowable pressure Detector: 30MPa (approx. 306kg/cm2G)(Depends on the specifications)
Weight Transducer:  Model PS-0CM: 5.5kg
Transducer:  Model TR-2CM: 4.3kg
Power source: Model PS-2:    7.6kg
Size Transducer:  Model PS-0CM: 216(W)×125(D)×259(H)
Transducer:  Model TR-2CM: 200(W)×149(D)×220(H)
Power source: Model PS-2:    250(W)×145(D)×275(H) (mm)
Installation Detector: Flange mounting Screws mounting  Ferrule IDF, etc.
Material Detector: SUS316 SUS316L Hastelloy Titanium
      Graphite Gold Platinum, etc.
Head case: Light alloy SUS304 Salt resistant paint case, etc.
Configuration

Model NSB-CM
(Intrinsically safe construction / i3nG5)
<Totally separated detector unit type>

This model is composed of detector unit, transducer, relay power source and special cable that is 4 core control cable. As the transducer is designed to be installed in a dangerous area, the special cable can be made short enough to minimize picked-up noises, thus permitting a stable performance to be obtainable. As to performance, this model has the same characteristics as those of Model QBS-CM.

Products and Service