N-LF5R, 0-5 µS conductivity measuring instrument with integrated 3/4″ screw-in measuring cell

Description "N-LF5R, 0-5 µS conductivity measuring instrument with integrated 3/4″ screw-in measuring cell"

Conductivity meter for conductivity monitoring

Our innovative conductivity meter was developed specifically for monitoring the conductivity of aqueous solutions. With a measuring range of 0 to 5 µS/cm, our device is particularly suitable for monitoring low conductivities, which are typically used in the following processes:

• Mixed bed cartridges
• demineralisation
• Reverse osmosis (2-stage)
• EDI (electrode ionisation)

The limit values are indicated by means of digital displays with 2 preset limit values and 2 LEDs (green/red) for visualisation.

The device has a screw-in thread of ¾", which can be customised for easy and safe installation. There is also the option of customised versions with regard to the measuring range and a private label.

Added value 

• Operation at 9 V DC via supplied plug-in power supply unit 
• 1 potential-free relay with switchable mode of operation of relay control 
• Limit value display optically by means of LEDs 

Technical data 

• Measuring range: 0 - 5 μS/cm 
• Measuring accuracy: 2.5% of measuring range end value 
• Resolution: 2 decimal places 
• Limit value displays: Optical by means of LEDs, limit values adjustable between 0 and 100 % of the measuring range 
• Limit value 1 preset to 1 μS/cm (relay contact) 
• Limit value 2 preset to 0.5 μS/cm 
• 1 potential-free relay contact, max. 2 A / 250 V AC, 60 W / 62.5 VA 
• Power supply: 9 V DC via plug-in power supply unit 100 - 240 V AC 
• Power consumption: approx. 1 W 
• Protection class: IP 65 
• Housing: polycarbonate housing, 82 x 60 x 57 mm 
• Connections: lateral connection for plug-in power supply and 1x relay output 
• Measuring cell: ¾", PP, PN 6, Tmax. 60°C

Why do I need a conductivity meter in my system? It allows you to quickly see how clean your water is and whether, for example, a filter or water treatment system is working properly. For which systems is this meter particularly well suited? It is frequently used in water treatment and osmosis systems, or in technical installations for water monitoring. Can I simply screw the measuring cell into my water pipe? Yes, it is screwed directly into a 3/4″ connection and can usually be easily integrated. How accurately does the device indicate water quality? It measures the conductivity of the water and thus quickly indicates changes in water quality. Is the device also suitable for very pure water? Yes, the measuring range up to 100 µS is specifically designed for very pure or treated water. Do I need to maintain or clean the measuring device regularly? As a rule, occasional inspection and cleaning of the measuring cell is sufficient.