BL-7917-2 ORP Controller and Pump
BL-7917-2 ORP Controller and Pump
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In stock
Hanna BL-7917-2 ORP Controller and Pump is a compact and reliable solution for automatic ORP (redox) control and chemical dosing in water treatment systems. It combines a controller and dosing pump in one unit, providing continuous monitoring and automatic adjustment of disinfection levels.
Designed for real-time operation, the BL-7917-2 measures ORP and automatically doses oxidizing or reducing agents to maintain the desired setpoint, ensuring stable and effective water disinfection.
Key Features
- Integrated ORP controller and dosing pump
- Continuous real-time ORP monitoring
- Automatic dosing to maintain set ORP value
- Adjustable setpoint and dosing rate
- Compact and easy-to-install design
- Reliable operation for continuous use
- Simple calibration and setup
Applications
- Swimming pools and spas
- Water disinfection systems
- Cooling towers and industrial water
- Aquaculture and aquariums
- Wastewater treatment
System Overview
The BL-7917-2 continuously measures ORP using a connected electrode and automatically controls dosing to maintain optimal oxidation-reduction conditions. This ensures effective disinfection and stable process control with minimal manual intervention.
What's Included
- BL-7917-2 ORP controller with integrated pump
- ORP electrode (model depending on configuration)
- Tubing and injection fittings
- Mounting hardware
- Instruction manual
Measurement Method
ORP is measured using a redox electrode that detects the oxidation-reduction potential of the solution. When the measured value deviates from the setpoint, the integrated pump automatically doses chemical solution to restore and maintain the desired ORP level.
Why Choose BL-7917-2?
- All-in-one solution for ORP control and dosing
- Ensures consistent and effective disinfection
- Reduces manual monitoring and adjustment
- Reliable performance for continuous operation
Couldn't load pickup availability
Description
Description
- ORP controller and dosing pumps in one compact unit.
- ±5 mV accuracy with unbeatable performance.
- Isolated 4 to 20 mA recorder output.
- Proportional dosing slows the pump down when the measured ORP level approaches the set value which avoids over dosage of oxidising or reducing agents.
- Alarm contact is activated whenever the ORP reading varies more than 200 mV from the set point.
- Auxiliary contacts allow the user to attach a mixer or priming pump that is activated only when the pump is dosing.
- High Quality materials are used for all parts that come into contact with liquid.
Order Information:
The BL 7917 series is supplied with discharge and suction valves, polyethylene tubing, power cable and instructions.
Order Information:
The BL 7917 series is supplied with discharge and suction valves, polyethylene tubing, power cable and instructions.
Specifications
Specifications
| Range | -999 mV to +999 mV | |
| Resolution | 1 mV | |
| Accuracy | mV | +5 mV |
| Flow Rate | 13.3, 11.7, 10.1, 9.0, 7.8 (LPH) | |
| Input Impedance | 1012 Ohm | |
| Dosage | proportional, oxidizing or reducing, user selectable | |
| Recorder Output | 4-20 mA (isolated) | |
| Dosing Contact | 1 isolated contact, 2A, Max. 240V, resistive load, 1,000,000 strokes | |
| Alarm Contact | 1 isolated contact, 2A, Max. 240V, resistive load, 1,000,000 strokes | |
| Power Supply | See Chart | |
| Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing | |
| Dimensions | 181 x 221 x 142 mm (7.1 x 8.7 x 5.6") | |
| Weight | 5 kg (11 lb.) |
Safety Data Sheet
Safety Data Sheet
Manuals
Manuals
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