Editor's Choice


Continuous corrosion resistance

June 2024 Editor's Choice Sensors & Transducers

The polypropylene version of ifm’s LDL400 conductivity sensor is based on the proven LDL200 inductive conductivity sensor. Its material properties make it the ideal choice for applications in which metallic sensors tend to corrode. It is perfect for aggressive, acidic, or alkaline media such as cleaning agents, or when it is in direct contact with salty ambient air. With an internal diameter of eight millimetres, the measuring channel ensures optimum flow of the medium while minimising the risk of blockages. The sensor also meets the high requirements of the marine industry, and is certified according to DNV EU RO Mutual Recognition Type Approval.

Wide measuring range

The conductivity of the medium is measured from 100 to 2 000 000 µS/cm and output as a temperature-compensated value. The wide measuring range means it can be used in almost any water treatment application as an indicator of water quality.

Standardised M12 connector

Instead of an error-prone cable gland, the standardised M12 connector has an impressive ingress protection rating of IP68 and IP69K, and withstands severe operating conditions. Moulded plugs allow for quick connection and eliminate wiring errors as there is no terminal chamber.

Water treatment from filtration to desalinisation

The sensor continuously measures the conductivity of the medium in the range from 100 to 2 000 000 µS/cm. This means that the LDL400 can be used universally in almost every conceivable water treatment application.

Keeping the ecosystem in balance

In fish farming, the sensitive ecosystems must be precisely controlled to enable successful and sustainable breeding. If the system were to become unbalanced, this would result in the loss of the entire breeding stock and a standstill in breeding.

The salt concentration of the water is a relevant measured variable, and with the LDL400 the conductivity can be reliably determined at any time.

Vertical farming

In order to optimise the growth of a plant, it is not only necessary to determine and adhere to the water requirements, but also to check the concentration of minerals in the water. The LDL400 can be used to measure this concentration and check whether it corresponds to the requirements. This ensures an optimum supply for the plants.

Certified for the marine industry

Thanks to its material properties, the sensor is ideally suited for use in the marine industry, and is certified according to DNV EU RO Mutual Recognition Type Approval. This makes the sensor the ideal choice for water treatment applications on ships.

Added value with IO-Link communication

Communication to the sensor is via IO-Link. This has many benefits:

• Precise transmission of process values .

• Reduced wiring with decentralised IO-Link masters.

• Seamless digital information and values.

• Sensor data can be used via IIoT for MES & ERP.

• Best possible resolution across the entire measuring range.

• The resolution of the conductance is always scaled to suit the used measuring range, so that the highest possible accuracy is guaranteed.

IO-Link converter

The EIO104 converter quickly and easily converts IO-Link process values into two 4...20 mA signals. This means that IO-Link sensors can be easily connected to existing controllers featuring only analogue input cards.

Analogue integration

With analogue integration, the process value is output as a 4...20 mA signal. The LDL400 is supplied with an analogue output.

Transparent processes

Constant monitoring of conductivity and temperature allows you to keep an eye on your process at all times. The salt concentration of sodium chloride in ultrapure water can also be output acyclically.

Compact design

The compact design combines evaluation unit and sensor element in one housing. This saves space in the control cabinet, and significantly reduces wiring complexity. It also eliminates the need for an expensive data cable between the measuring element and the evaluation unit.

Easy set-up, even remotely

The conductivity sensor can be configured quickly and easily via IO-Link, either remotely or during the process. No additional transducer is required.

Logging and simulation

In addition to displaying and logging the process values, various events can also be recorded and simulated via IO-Link.

Backup and restore

Are you planning a device replacement? The backup and restore function automatically backs up and restores parameter sets via IO-Link, making it easier to replace the device.

To view a video on the LDL400 visit https://www.ifm.com/za/en/shared/products/leitfahigkeit/ldl400/polypropylene-variant


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

South Africa’s space balls
Editor's Choice News
South African engineers are preparing to take low-frequency radio astronomy to the Moon with three locally developed B.A.L.L.S. spheres aboard China’s Chang’e-8 mission. This could pave the way for a 55-antenna lunar array and marks another step in the country’s growing space engineering capability.

Read more...
Practical tips to build a successful engineering career
Editor's Choice
Award-winning civil engineer, Tinashe Mukalela of AvenirHoldings shares ten practical tips for young engineers navigating a competitive job market, from professional registration and mentorship to emotional intelligence and leadership development.

Read more...
Why mining operations need local lightning early warning
Senseca Editor's Choice Electrical Power & Protection
Lightning can develop into a serious mining hazard before the first local strike, leaving crews little time to stop work and reach safety. Local early-warning technology can provide valuable lead time, allowing mines to connect developing storm conditions to defined trigger actions that protect people, explosives and equipment.

Read more...
XPlanar aids innovation in laser processing
Beckhoff Automation Editor's Choice Motion Control & Drives
Aalborg University is among the first in the world to test Beckhoff’s XPlanar intelligent transport system in advanced laser processes, achieving micrometer-precise workpiece positioning and dramatically shorter lead times compared with traditional tool-based manufacturing.

Read more...
The wireless route to safer, more efficient mining operations
Emerson Automation Solutions Editor's Choice Sensors & Transducers
Modern wireless level measurement technologies are helping mining operations improve process control, increase safety and reduce installation costs. Emerson’s Rosemount 3408 wireless non-contacting radar level transmitter uses 80 GHz frequency-modulated continuous wave radar with HART communication to reach remote assets where cabling is impractical.

Read more...
Nine things your emergency control room must now have
Oculus Operational Innovations Editor's Choice IS & Ex
A new South African regulation, effective since March 2025 with no transition period, sets out nine mandatory requirements for underground mine emergency control rooms, and specifies who must be in charge at all times.

Read more...
AES maintains a strong value and safety stance on boiler retrofits
Editor's Choice
When retrofitting and upgrading boilers, operational experience, technical knowledge of different boiler types, operating conditions and water treatment count. Through operating 79 boilers, AES knows what works and what does not.

Read more...
Pressure sensor for robust measurement and clear communication
ifm - South Africa Pressure Measurement & Control
ifm’s G1/2 PF pressure sensor monitors highly viscous or abrasive media directly on the system, with a robust ceramic measuring cell, a rotatable display and a flush design that prevents clogging.

Read more...
Vibration sensor with CANopen interface for mobile machines
ifm - South Africa Maintenance, Test & Measurement, Calibration
ifm’s 3-axis VMB301 condition monitoring sensor integrates into the vehicle network via CANopen, delivering real-time bearing, vibration and temperature data to help mobile machines avoid costly damage and downtime.

Read more...
The data-driven path to sustainable manufacturing
ifm - South Africa Editor's Choice Sensors & Transducers
Smart automation is closing the gap between operational efficiency and environmental responsibility, and the data to do it is already inside the plant. With ifm’s sensing and digitalisation technologies, manufacturers can turn machine intelligence into measurable sustainability gains.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved