MoniSpec-C-A (NIR- / VIS-Absorption)

The MoniSpec-C-A model process turbidity sensor detects particles and turbidity-causing substances in liquids. The sensor is designed for a process pressure of 16 bar (higher pressures available upon request). Depending on the selected seal material, the maximum process temperature is at least 140°C. The sensor can be configured for use in hazardous areas (ATEX-Ex d IIC / T6).

Typical Industries & Applications

Chemical Industry
Petrochemical Industry
Pulp Industry
Food
Product concentration
Centrifuges
Inlet/Outlet
Product separation
Oil in water
Paper Industry

The MoniSpec-C-A model inline turbidity sensor utilizes the principle of near-infrared (NIR) light absorption to detect solids and colors in liquids. A light beam passes through the product being measured; a detector positioned opposite the light source captures the NIR component emitted by the source. The detected NIR radiation varies according to the level of turbidity.

  • Low turbidity = High intensity
  • High turbidity = Low intensity

The Model C1 transmitter processes the sensor’s intensity signals and calculates the measurement values.

The MoniSpec-C-A sensor is designed for continuous operation with long service life. Its gas-filled measuring lamp (380–1100 nm) provides a typical operating life of approximately one year.

The sensor can be installed in almost any pipeline, with process connections and sealing materials selected according to the application. An optional cleaning probe automatically cleans the sapphire measuring windows to ensure reliable operation. During turbidity measurement, the sensor uses near-infrared (NIR) absorption, making it largely insensitive to product color. Different optical path lengths enable a wide measuring range from approximately 0–100 ppm up to 0–60,000 ppm.

An optional ATEX explosion protection version allows operation in hazardous areas. The measuring cell is manufactured from high-quality stainless steel for maximum durability and corrosion resistance.

ParameterSpecification
Nominal SizesDN 25–DN 125 / ½” to 5″
Process PressurePN 16 / ANSI Class 150
Operating TemperatureUp to 140 °C
Sensor MaterialSapphire
Window MaterialStainless Steel 1.4404
Seal MaterialApplication-specific
Measuring RangeTypically 0–100 ppm, 0–6% TS
Repeatability±1%
Measurement Wavelengths390–900 nm
Protection ClassIP65 / NEMA 4X
CleaningOptional cleaning probe / CIP
Optional Explosion ProtectionATEX Zone 1 / Zone 2

The MoniSpec-C-A model inline turbidity sensor utilizes the principle of near-infrared (NIR) light absorption to detect solids and colors in liquids. A light beam passes through the product being measured; a detector positioned opposite the light source captures the NIR component emitted by the source. The detected NIR radiation varies according to the level of turbidity.

  • Low turbidity = High intensity
  • High turbidity = Low intensity

The Model C1 transmitter processes the sensor’s intensity signals and calculates the measurement values.

The MoniSpec-C-A sensor is designed for continuous operation with long service life. Its gas-filled measuring lamp (380–1100 nm) provides a typical operating life of approximately one year.

The sensor can be installed in almost any pipeline, with process connections and sealing materials selected according to the application. An optional cleaning probe automatically cleans the sapphire measuring windows to ensure reliable operation. During turbidity measurement, the sensor uses near-infrared (NIR) absorption, making it largely insensitive to product color. Different optical path lengths enable a wide measuring range from approximately 0–100 ppm up to 0–60,000 ppm.

An optional ATEX explosion protection version allows operation in hazardous areas. The measuring cell is manufactured from high-quality stainless steel for maximum durability and corrosion resistance.

ParameterSpecification
Nominal SizesDN 25–DN 125 / ½” to 5″
Process PressurePN 16 / ANSI Class 150
Operating TemperatureUp to 140 °C
Sensor MaterialSapphire
Window MaterialStainless Steel 1.4404
Seal MaterialApplication-specific
Measuring RangeTypically 0–100 ppm, 0–6% TS
Repeatability±1%
Measurement Wavelengths390–900 nm
Protection ClassIP65 / NEMA 4X
CleaningOptional cleaning probe / CIP
Optional Explosion ProtectionATEX Zone 1 / Zone 2
SIGNAL AMPLIFIERS

Model C1

Description

The Model C1 measurement amplifier can be used with most optical sensors. System programming and calibration are performed via a PC or laptop using menu-driven software. Calibration can be carried out using one or more samples. All settings and calibration values ​​can be backed up externally on your PC’s hard drive.

  • Operating temperature: Up to 45 °C
  • Housing material: Stainless steel 1.4301
  • Measuring range: Sensor-specific (programmable)
  • Interface: USB
  • Software: Configuration and calibration via Windows PC
  • Reproducibility: ±1%
  • Protection class: IP65 / NEMA 4X
  • Power supply: 90–260 VAC, 50–60 Hz (optional: 24 VDC ±10%)
  • Analog output: 4–20 mA, 500 Ω (isolated)
  • Relay outputs: Maximum contact load 24 VDC / 1 A
CONTACT

Looking for the right solution?

Benefit from more than 40 years of experience, field-proven measurement technology and personal consultation. Together, we will find the right solution for your application. Visit our contact page and tell us about your project to receive a non-binding quotation.