The Hanna Instruments BL7917-1 is a combined oxygen reduction potential (ORP) controller and chemical dosing pump intended for use in water treatment applications. It has a flow rate of 7.8 to 13.3 liters per hour (LPH) and pressure of 0.5 to 4.0 bar. The ORP controller is accurate to 5mV of the set point for control of oxidation or reduction chemical dosing. It has a control panel with LCD, set point trimmer, selection switches, connector for ORP electrode (sold separately), and auxiliary contacts for connection to external devices (sold separately) such as fluid-level control. A transparent plastic cover protects the control panel from contamination and liquids. The power supply accepts 115V, 50/60Hz input power. The ORP controller/pump unit includes suction and discharge valve assemblies, 7' of LDPE tubing, a power cord, and instructions. Required accessories are foot valve assembly, injection valve assembly, and ORP electrode (all sold separately).
|Pump type||Diaphragm, solenoid-driven|
|ORP controller||Proportional dosing, oxidizing or reducing|
|Flow rate||7.8 to 13.3 LPH|
|Pressure||0.5 to 4.0 bar|
|Range||-999mV to +999mV|
|Input power||115VAC, 50/60Hz|
|Isolated output||4 to 20mA|
|Operating temperature||0 to 50 degrees C|
|Dimensions||181 x 221 x 142mm (H x W x D)|
H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.
Hanna Instruments manufactures analytical instrumentation and supplies, including pH meters, electrodes, chemical reagents, and buffer solutions. The company, founded in 1978 and headquartered in Woonsocket, RI, meets International Organization for Standardization (ISO) standard 9001.
What's in the Box?
- ORP controller/pump
- Suction valve assembly
- Discharge valve assembly
- LDPE tubing
- Power cord