35 series The 35 series developed by Chemitec is dedicated to the water treatment and industry sectors, and enables the following parameters to be measured: Process control device 4 The limits of the outputs are freely programmable within the measuring range. 4 digital outputs 4ON/OFF set point: programming the operating range (hysteresis/direction) and start/stop time 000 to 999 seconds. Alarm 4Programmable for: tool faults, minimum, maximum, set point delay, stay time (live check). 4Delay time: 00:00 to 59:99 mm:ss with a minimum interval of 15 sec. 4Stay time 00:00 to 99:99 hh:mm 4Set point deactivation (in case of alarm): Enabling/Disabling. Wall-mounted version with IP66 protection rating (144 x 144 x 120 mm) Washing electrodes 4Programming the interval (minimum 15 min) and the duration. 4During washing, all the analogue and digital outputs are frozen. Digital input 4To disable the doses. RS485 serial port Panel-mounted version (144 x 144 x 100 mm) 4For set-up and remote real time acquisition. Manual controls 4Possibility to simulate the analogue and digital outputs from the keypad. Temperature compensation 4Using PT100 sensor with 3 or 4 wires, or PT 1000. Panel-mounted version (96 x 96 x 133 mm)

Electrical connections Input Measure Input Temperature Digital Input Vac/dc Input Relay Wash Digital input Universal power supply 100 – 240 Vac Set Point 1 Set Point 2 Alarm Washing

Simple and intuitive software Analog Inputs Digital Inputs Analog Outputs Relay Outputsl ► Interactive, easy to read interface

Dimensions Wall-mounted version with IP66 protection rating 122,5 144

Measuring range pH 0 to 14 pH Resolution 0,01 pH pH and REDOX electrodes The electrodes shown below are all of the combined type (Measuring + Reference), do not require maintenance and differ in their structural characteristics, making them suitable for many applications. The elements that must be considered when choosing an electrode are: measuring range, temperature, pressure and chemical substances present in the sample and type of assembly on the system. Minimum conduc. Maximum temperature Maximum pressure Porous baffle Process fitting Open hole Open hole Open hole Open hole Measuring range...

Measuring range Conductivity 0 to 20 μS; 0 to 200 μS; 0 to 2.000 μS; 0 to 20.000 μS; 0 to 200.000 μS Resolution 0,01 μS; 0,1 μS; 1 μS; 10 μS S411-S428 Conductivity probes Specially designed for use in an industrial environment, these make it possible to cover a very wide measuring range, thanks to versions with temperature sensor, special versions with PVC, PTFE, PVDF body, graphite, steel or platinum electrodes. Conductivity is measured by submerging the two metal electrodes of the probe in the solution to be measured. The passage of current between the two probes allows the electrical resistance...

Inductive conductivity Measuring range Conductivity 0 to 1,000 μS; 0 to 10.000 μS; 0 to 100.000 μS; 0 to 1 Simens (0 to 999.999 mS) Resolution 1 μS; 10 μS; 100 μS; 1,000 μS S411/IND Inductive conductivity sensors 4Low maintenance 4Versions for in-line, submersion or tank installation 4Ideal for cooling towers, process water, concentrated solutions The S410/IND series of inductive sensors has been engineered and developed to produce an electrode that is very powerful but at the same time competitive. The result has been obtained by moulding the sensor made using polypropylene reinforced with fibreglass....

Dissolved Oxygen Measuring range Dissolved oxygen 0 to 20.0 ppm or mg/l - 0 to 200% SAT Resolution 0.1 ppm or mg/l - 1% SAT S423/OXYSENS™ Main measuring range The oxygen contained in the liquids is measured using the so-called Clark cell system. These cells generate a current proportional to the partial pressure of the oxygen, which can be detected using a suitable signal converter. In order to prevent interference during measuring, the Clark cell is protected by a gas-permeable membrane. The membranes typically used are made from PTFE but, as this material is mechanically fragile, frequent changing...

Chlorine and other oxidants Measuring range from 0 to 100,000 ppm to be selected in relation to the type of sensor connected S 494 Amperometric sensors with membrane Amperometric sensors with 2 or 3 membrane-covered electrodes with built-in temperature sensor for signal compensation. Assembly in a flow-through cell with constant flow (S305PX). Technical data Fields of application – Swimming pool, drinking, service, process water. – The sample should not contain surfactants. The pH value must be constant. – Amperometric system with two or three membrane-covered electrodes with internal electrolyte...

– Plexiglas cell and fixing brackets – PVC fittings and valves – Stainless steel float – NBR O-ring Working conditions – Max operating temperature: 60 °C – Max operating pressure: 4 bar Liquid outlet Proximity sensor Stainless steel float sensor Temperature sensor (OPTIONAL) Chlorine detection probe Liquid inlet Probe clamping ring nut Cylinder head screw for grounding Flow regulator Measuring range Total chlorine Free organic and inorganic chlorine Chlorine dioxide Free chlorine Peracetic acid Hydrogen peroxide S305PX494 Flow-through electrode holder for chlorine, chlorine dioxide, ozone, chlorite,...