Conductivity multi-parameter controller NEXUS 7000

pHfree chlorineoxygen

Product overview
Compact, user-friendly water quality controller for continuous monitoring and control of pH/Rx, free chlorine and temperature. Includes two inputs for chemical level probes. Classified as a Converter box.

Measurement modules / ranges

• pH / Rx: 0 ÷ 14.00 (resolution indicated)
• Conductivity: 1 ÷ 200 μS; 10 ÷ 2000 μS; 100 ÷ 20000 μS; 200 ÷ 50000 μS
• Oxygen: 0 ÷ 20 ppm
• Free Chlorine: supported (range as specified by probe/accessory)
• Temperature: supported (range depends on probe)

Features

• 4 digital outputs
• Protection rating IP65
• 3 relays with power supply for dosing pumps
• 2 dry-contact relays for alarms
• 2 current outputs (4 ÷ 20 mA)
• 2-channel open-collector frequency inputs
• RS485 port with Modbus RTU protocol
• Alphanumeric display, 4 lines × 20 characters
• High-definition measurement

Accessories (examples)

• E.PH EPOXY - E.PH 1 EPOXY
• E.PHV EPOXY - E.PHV Glass - E.RXV
• E.RX EPOXY - E.RX 1 EPOXY - E.RX AU
• E.PH HT - E.RX HT
• E.PH LC - E.PH AL
• E.CD K1 - E.CD K5 - E.CD K10
• E.CT K1 SS + T°
• E.CT K1 PGR + T°
• E.CT K1 GR + T°
• E.CD K1 PT
• Cable for conductivity sensor

Applications

• Drinking water treatment
• Food and beverage processes
• Wastewater treatment
• Tannery effluent control
• Legionella prevention and monitoring

Technical specifications

• Power supply: 100–240 VAC, 50/60 Hz
• pH range: 0 ÷ 14.00 (resolution indicated)
• Conductivity ranges: 1 ÷ 200 μS; 10 ÷ 2000 μS; 100 ÷ 20000 μS; 200 ÷ 50000 μS
• Oxygen range: 0 ÷ 20 ppm
• Measured parameters: pH/Rx, Free Chlorine, Temperature
• 2 inputs for chemical level probes
• 4 digital outputs; 2 current outputs (4 ÷ 20 mA)
• 3 relays with pump power supply; 2 dry-contact relays for alarms
• 2-channel open-collector frequency inputs
• Communication: RS485 with Modbus RTU
• Display: alphanumeric, 4 lines × 20 characters
• Protection: IP65