INSTRUMENTS FOR PROCESS ANALYSIS

THE NEXUS.4000 SERIES DEVELOPED FOR WATER TREATMENT AND INDUSTRY, ALLOW THE MEASURING OF: pH/REDOX, CONDUCTIVITY, TURBIDITY, CHLORINE, CHLORINE DIOXIDE, OZONE 
1 ANALOGUE OUTPUTS programmable for measure, output limits are freely programmable between range of measures 
4 DIGITAL OUTPUTS on/off set point: set of the operating range (hysteresis/direction) and of start/stop time 000÷999 sec 
PID REGULATION pulse frequency or PWM (2 set point) 
ALARM reporting: instrumental anomalies, minimum, maximum, set point delay, permanence time (Live Check) 
ELECTRODES WASHING programming of the time leg, frequency: 00:00÷24:00 hh:mm, minimum time leg: programmable, during the washing phase, all digital and analogue outputs are freezed

PANEL VERSION 96x96x133 mm

TECHNICAL FEATURES

• DIGITAL INPUT TO DISABLE DOSAGE
• RS485 SERIAL INPUT FOR SET UP AND REAL TIME DATA ACQUISITION FROM REMOTE OR FOR STORED DATA DOWNLOAD (using a dedicate SW), USB TO DOWNLOAD (software required) MODBUS RTU COMMUNICATION PROTOCOL
• MANUAL CONTROLS POSSIBILITY TO SIMULATE ALL THE ANALOGUE AND DIGITAL PUTPUTS USING THE KEYBOARD
• TEMPERATURE COMPENSATION VIA TEMPERATURE SENSOR PT100 WITH 3 OR 4 WIRES, OR PT1000
• 128x64 PIXEL GRAPHIC DISPLAY, BACK LIGHTED

RANGE
pH - 0÷14,00 (accuracy 1%)
RX - ±1500 mV
CD - 0÷20 / 0÷200 / 0÷2.000 / 0÷20.000 / 0÷200.000 μS
CL - 0÷2 / 0÷5 / 0÷10 / 0÷20 ppm
TB - 0÷0,1 / 0÷10,0 / 0÷100 NTU (only with probe E.CT 2 PVC)
OX - 0÷20 ppm

POWER SUPPLY
100÷240 VAC 50/60 Hz

CURRENT OUTPUT
0/4÷20 20÷4/0 mA galvanic separation

TEMPERATURE SENSOR INPUT
NTC scale / -10÷+150°C / manual setting and direct visualizzation

SET POINT
2 independent throught 20A 250V dry contact relay (resistance load)

RELAYS
Remote alarm/automatic washing