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  • Easy Fertilizer Controller "RAKU-RAKU 4"
  • Hydroponic system
水耕栽培機「らくらく肥料管理機4」

EC meter,pH meter and dual metering pump is combined into a compact unit.

 
Advantages Applications Specifications Catalogue Relevant  

Advantages

New function list

・ This product has a function to prevent overinjection.
・ Setting of one cycle operation time is possible, and when excessive injection occurs, notification is made by E display and buzzer sound.
・ Free power supply(100~240V).
・ Transmission output DC 4 to 20 mA for EC, pH, and temperature is equipped as standard. 
・ LCD display is brighter and easier to see.
 
・ Compact design combining a pH meter, EC meter and dual metering pump.
・ Wiring is already connected. Just plug in to use. 
Just throw the sensor into the diluting tank to start measuring.
・ Easy connecting to the fertilizer tank and dilution tank, using a hose.
・ Anti-siphon valve is equipped, so the tank could be installed both above ground and under ground.
・ Tough and strong diaphragm pump is equipped.
・ Prevent EC overconcentration by the interlocking function of the circulating pump
and the metering pump.
・ Power supply is 100~240V.
・ Optionally, the acid/alkali pump can be set to control three points: fertilizer, acid, and alkali.
Some unit types are available.

 

 Flow example

フロー図
 
 

Applications

・ For hydroponic nutrient management.

・ For the management of nutrient solution in soil cultivation.

・ For nutrient management at plant factories.

Specifications

Name Easy Treatment Fertilizer Controller 4 (EC: 5-pole pH: glass-electrode controller)
Model RK4TW-300-100V RK4TW-300-200V RT4WK-1000-100V RK4TW-1000-200V
Instrumentation Department Model PCE-12H
Measuring range EC: 0-10.0 mS/cm (factory-shipped): 0-20.0 mS/ cmpH: 0-14.00 pH: 0-50℃
Display LCD with back light
Accuracy EC: ±4% F·S ±1 digit pH: 0.03±1 digit Temperature: ±1℃
Setting Control point could be set by touch switch
Serial communication Communication standard RS485 speed up to 38400bps
Transmission output EC, pH, temperature DC 4-20mA (I/O insulation + insulation between outputs) Maximum connection load resistance 500Ω
Temperature compensating EC: Temperature Compensation Range 0-50℃ pH: Temperature Compensation Range 0-50℃
Function ON/OFF timer function
Control range setting function (range EC: 0 to 1.00mS per cm pH0 to 1.00pH)
EC/pH Automatic Calibration
Control to prevent overinjection (fertilizer and down/up agent)
External signal interlock function (100-240V with voltage, no-voltage contact)
Ambient temperature 0~45℃
Power supply Rated voltage AC100 ~240V Single phase voltage 50/60Hz (Free power supply)
Fertilizer pump section Model Diaphragm double-acting metering pump
Discharge rate 0~300ml
/min(50Hz)
0~360ml/
min(60Hz)
0~300ml/
min(50Hz)
0~360ml/
min(60Hz)
0~1000ml/
min(50Hz)
0~1200ml/
min(60Hz)
0~1000ml/
min(50Hz)
0~1200ml/
min(60Hz)
Pressure 0.5MPa 0.5MPa 0.3MPa 0.3MPa
Connecting member PVC、FKM、EPDM PVC、FKM、EPDM PVC、FKM、EPDM PVC、FKM、EPDM
Motor 25W 100V 25W 200V 60W 100V 60W 200V
Connection Blade hose (black)
φ6×φ11 15m
Blade hose (black)
φ6×φ11 15m
Blade hose (black)
φ8×φ13.5 15m
Blade hose (black)
φ8×φ13.5 15m

Sensor specifications


 pHセンサーS5610R

 

Name pH sensor (supplied as standard)
Model S5610R
Structure

Throwing type

Operating temperature range 0~50℃
Connection material

PVC, PP

Lead 10 m (standard)
   


 ECセンサーCES-10S

 

Name EC sensor (supplied as standard)
Model CES-10S
Structure

Throwing type

Operating temperature range 0~50℃
Connection material

Electrode: Titanium Case: PVC

Lead 10 m (standard)

 

Catalogue

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Relevant

 

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