Specialized manufacturer of water quality related apparatuses such as pH meter, pH Neutralizer.
- Easy Fertilizer Controller "RAKU-RAKU 4"
- Hydroponic system
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EC meter,pH meter and dual metering pump is combined into a compact unit. |
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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
Applications
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・ For hydroponic nutrient management. |
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・ For the management of nutrient solution in soil cultivation. |
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・ 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) |
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| 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 |
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Sensor specifications
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Catalogue
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Relevant
- (+81) -3-3946-3201
- (+81) -3-3946-3210
