HK8 mini

The HK8-mini NIR-H2O-Meter is a compact and powerful solution for continuous moisture measurement in liquids, specially developed for use in pipes, tanks or for non-contact measurements in confined spaces. It uses unique NIR LED technology for precise measurement of water or dry substance (TS) content and offers high stability in measurement, even under difficult conditions.

Features at a glance
  • Continuous moisture measurement: For measuring water/TS content in liquids or conveyor belts
  • NIR LED technology: Offers improved measurement stability and a service life of approx. 10 years

  • No mechanically moving parts: Maintenance-free
  • Installation flexibility: The sensor can either be immersed in the product (flange connection) or measure without contact through a viewing window

  • Simple calibration: via user-friendly PC software

  • Modular design: Sensor and evaluation unit are housed in separate enclosures. Connection via up to 50 meters of cable.
  • Compatibility: The measured values are output via RS232 (optional RS485) or as an analog signal (0/4-20mA)

  • Calibrations: Up to 8 calibrations can be stored in the device

Product description

The HK8-mini is a further development of the tried and tested HK8 and was specially developed for measuring the water or dry matter content in liquids in pipes and containers. Thanks to the NIR LED technology, the device is extremely stable and durable, which enables a service life of up to 10 years.

The sensor of the HK8-mini can be immersed directly into the product when installed via a flange connection in large pipes or containers. Alternatively, the device can measure without contact through a viewing window, which enables installation in difficult environments. The viewing window can be made of either borosilicate glass or sapphire glass to meet the various requirements of the application.

If the space conditions on a conveyor belt do not allow the installation of the standard HK8 sensor, an HK8 mini sensor with the same performance data can be used.

The device offers precise measurement of water or dry matter in various liquids and pasty products. This makes it an ideal choice for a wide variety of products, such as mozzarella, curd cheese, butter in the dairy industry and stock consistency in the paper industry.

What sets the HK8 mini apart

No color change dependency

Color changes on the product have no influence on the measurement.

Long service life

LEDs have a service life of up to 10 years, which minimizes maintenance costs.

Flexibility during installation

The sensor can be immersed in the product or measure through a viewing window.

Low maintenance

No mechanical parts that could suffer wear.

Simple calibration and handling

Up to 8 calibrations can be saved with the user-friendly software.

Technical data

Measuring method
Type of procedure:

NIR reflectance measurement with LED illumination

Assembly technology

Die-cast aluminum housing:

120 x 120 x 90 mm or
230 x 200 x 110 mm

Protection class:

IP65 / NEMA 4

Connections

Power supply:

100 – 240 V AC optional 24 V DC

Analog outputs:

2x 4 – 20 mA

PC interfaces:

RS 232 or RS 485

PROFI-BUS-DP:

optional
User interface

Operation:

6 softkeys integrated in the membrane keypad

Display:

2x 24 characters with backlight, LED illumination

Temperature ranges

Ambient temperature:

-20 °C to +50 °C

Product temperature:

depending on the application

Sensors

Downloads

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