COOLING WATER TREATMENT CONTROLLER IWAKI CO.,LTD

OUTLOOK OF W600 CONTROLLER Check the real time condition E-mail Sending CSV data file Alarm Alarm with CSV data file WCT600 Customer Operation data Water Treatment company Alarm Information Remote Access Access for check the real time condition with data and graph for manual download data for change of set point for remote relay control Power AC100-200V Smart phone WIFI Rooter Service stuff Data download USB VARIATION OF SENSOR INPUT 1 2 3 4 DIGITAL INPUT 6 Inputs with Dry contact Pulse <10Hz for contacting head Flow meter Pulse <120Hz for Flow meter 　　　　(Puddle Wheel) RELAY OUTPUT 6 Relays with Dry contact relay Powered relay Optical relay for proportional control ANALOG OUTPUT 2 Outputs Any of Sensor and analog inpiut SENSOR INPUT One of Conductivity pH ORP SENSOR INPUT One of Conductivity pH ORP ANALOG INPUT 2 channels in Any 4-20mA SENSOR INPUT One of Conductivity pH ORP SENSOR INPUT One of Conductivity pH ORP ANALOG INPUT 2 channels in 4-20mA ANALOG INPUT 2 channels in Any 4-20mA SENSOR INPUT One of Conductivity pH ORP ANALOG INPUT 1 channels in 4-20mA COMBINATION CARD

W600 CONTROLLER COOLING TOWER APPLICATION (1) Flow switch (D1) COOLING TOWER APPLICATION (1) Conductivity for Automatic Bleed control Little Dipper2 for Automatic Corrosion Inhibitor dosing control Alarm(R4) Power AC100V Makeup Water Meter(D4 ) ( < 10Hz or 500Hz) Makeup water Sensor Input USB Data download Analog Input COOLING TOWER Control by Conductivity Bleed Water Meter (D5 ) (< 10Hz or 500Hz) ON-OFF Control By Little Dipper2 Measurement Auto Bleed Solenoid Valve (R1)AC100V Conductivity sensor Little Dipper Bio-timer Control Level switch (D2) (R2)AC100V (R3)AC100V Level switch (D3) Corrosion Inhibitor Biocide CHILLER Circulating pump Corrosion Inhibitor Biocide

Wasted Chemical consumption Timer Control Chemical (ppm) 160 Wasted Chemical consumption 140 120 Maintain level 100 Conventional Timer feed 80 Need to adjust the dosing rate manually according to Cooling water concentration factor 60 Causes Corrosion & scaling risk Operation Time (hours) Little Dipper2 Control Chemical (ppm) 160 140 Save at least 20-30% of Chemical usage VS. conventional Timer feed control 120 OFF ON Dosing pump Maintain level 100 Reduce Corrosion risk (Shut-down etc.,) Which means reduce TCO (Total Cost of Operation) 80 Chemical maintained level is kept all the time even Cooling water concentration factor was changed 60 Operation Time (hours)

W600 CONTROLLER COOLING TOWER APPLICATION (2) Conductivity for Automatic Bleed control Little Dipper 2 for Automatic Corrosion Inhibitor dosing control pH for Automatic Cooling water pH adjustment Flow switch (D1) Alarm(R6) Power AC100V Makeup Water Meter(D5 ) ( 100L/pulse) Makeup water Sensor Input USB Data download Analog Input COOLING TOWER Control by Conductivity Bleed Water Meter (D6 ) (100L/pulse) ON-OFF Control By Little Dipper2 Measurement Conductivity sensor Auto Bleed Solenoid Valve (R1)AC100V pH sensor Little dipper Level switch (D3) Bio-timer Control (R5) Relay pH measurement Level switch (D2) (R4)Relay Level switch (D4) (R3) Relay Acid Corrosion Inhibitor Biocide CHILLER Circulating pump Acid Corrosion Inhibitor Biocide

W600 CONTROLLER COOLING TOWER APPLICATION (3) Conductivity for Automatic Bleed control LittleDipper2 for Automatic Corrosion Inhibitor dosing control ORP for Oxidizing Biocide monitoring & Automatic control Flow switch (D1) Alarm(R4) Power AC100V Makeup Water Meter(D4 ) (< 10Hz or 500Hz) Analog Input Makeup water USB Sensor Input Data download COOLING TOWER Control by Conductivity Bleed Water Meter (D5 ) (< 10Hz or 500Hz) ON-OFF Control By LittleDipper2 Auto Bleed Solenoid Valve ORP sensor (R1)AC100V Conductivity sensor LittleDipper ORP control Or Timer control Level switch (D2) (R2)AC100V Level switch (D3) (R3)AC100V Corrosion Inhibitor Biocide CHILLER Circulating pump Corrosion Inhibitor Oxidizing Biocide

ORP MONITORING FOR HALOGEN BIO-TIMER DOSING Check ORP peak level and confirm Hypo dose rate and timer setting are good enough Cooling system is quite clean Time up Dosing pump air gap or system is contaminated Hypo dosing start Additional dose was set in the evening

SPIKING CHLORINATION FOR SYSTEM CLEANING Once a week or 2 weeks Chlorination Error Regular Chlorination

TYPICAL INSTALATION FOR COOLING WATER TREATMENT

W600 CONTROLLER WALL PANEL & DOSING SKID Conductivity W600 Flow switch Cooling Water Return ORP Power panel Cooling Water Inlet Little Dipper2 POWER AC100-220V Level switch Level switch Chemical dosing pump Corrosion Inhibitor Biocide