Coat Weight Sensors

Key Features

Double-sided or single-sided NIR
Non-contact sensors
Connection to sensor using Profibus or Modbus fieldbus interface
More accurate online measurement with same-spot detection

Measuring Method

The Scienta NIR absorption-based sensor series 7235-C is a single sided, 2-channel InGaAs detector-based Coat weight sensor for online use. The sensor measures the infrared light absorbed by different wavelengths.

The sensor can be supplied with 4-channels for multi-material analyses. All channels are measured simultaneously using a same-spot technology and micro-optical receivers.

Benefits

To process applications such as paper, board, nonwovens, resin impregnation, laminating, foils etc.

Non-contact measurement
Service free construction
Easy and convenient to install and operate
Full range of scanners available
Easy calibration and setup
More accurate on-line measurements
Faster on-spec quality and reduced start up waste

Reduction in rejects due to high performing measurements
Minimization of energy consumption by accurate and reliable Coat Weight measurements and controls
Machine speeds can be increased on drying limited paper and board machines

Technical Specifications

Sensor Type	7235-C
Method	NIR-MIR
Construction	Single-sided
Range	5 – 100 g/m²
Accuracy	0,15 g/m² (2 σ)
Repeatability	0,01 g/m² (2 σ)
Recommended measurement distance	100 mm
Power Requirement	+24V, 1A
Installation	Scanning /Fixed

Sensor Type	7235-C
Measurement Resolution	0,02 g/m²
Interface Options	Profibus DP
	Modbus RTU
	USB
Environmental Conditions	10-60 ℃ 10-95 % RH
Liquid Cooling	Optional