Hanna BL 7916-1 pH Controller and Pump; Range: 0.00 to 14.00pH
Item Description: Hanna Instruments BL 7916 0.00 to 14.00 pH Controller and Chemical Dosing Pump
- 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, to avoid over dosage of oxidizing or reducing agents
- Alarm contact is activated whenever the ORP reading varies more than 200 mV from the set point
- Auxiliary contacts allow users to attach a mixer or priming pump that is activated only when the pump is dosing
- PVDF, FPM/FKM and PTFE materials are used for all parts that come into contact with liquid
|pH Range||0.00 to 14.00 pH|
|pH Resolution||0.01 pH|
|pH Accuracy (@25ºC/77ºF)||±0.01 pH|
|pH Calibration||offset: ±1 pH with trimmer; slope: 85 to 115% with trimmer|
|pH Temperature Compensation||fixed temperature compensation of 25°C (77°F)|
|pH Input impedence||High Impedance 10¹² Ohm|
Process Control Meter
|Alarm Relay Set Point||1 isolated, 2A, max. 240V, resistive load, 1,000,000 strokes|
|Dosing Control||proportional, acid or base, user selectable|
|Analog Ouput Signal||4-20 mA (isolated)|
|Dosing Terminals||1 isolated, 2A, max. 240V, resistive load, 1,000,000 strokes|
|Over Current Protection||250V fuse|
|Power Supply||115V ±15%; 50/60Hz (40W);|
|Environment||0 to 50°C (32 to 122°F); RH max 95% non-condensing|
|Dimensions||221 x 142 x 181 mm (8.7 x 5.6 x 7.1’’)|
|Weight||5 kg (11 lb.|
|Ordering Information||BL7916-1 is supplied with 7 m (23') LPDE suction valves, polyethylene discharge tubing, 115V power cable and instructions.|
- Designed with mounting holes built into a rugged base, BL7916 is simple to install. All of the controls and pump assemblies are conveniently located on the front of the unit.
- A proportional control slows down the stroke rate as the measured value approaches the user selectable set points, avoiding overdosage of chemicals. This feature makes the pump’s dosing more accurate, saves chemicals and eliminates unnecessary and costly corrections to your process, especially with slow reacting chemicals.
- BL7916 is housed in rugged, fiber-reinforced polypropylene IP55 rated casings to protect from hazardous spills and splashes. PVDF, FPM/FKM and PTFE materials are used for all parts that come into contact with liquid to resist corrosion caused by chemicals.
Isolated Recorder Output
- To enhance troubleshooting and the ability to record data while monitoring, simply attach a recording device to the instrument’s 4 to 20 mA output contacts, conveniently located on the front panel, to obtain a copy of the results on demand.
Simple Pump Action
- A positive displacement solenoid with few moving parts makes the BL7916 more reliable than motor driven pumps since there is no rotating parts, gears or cams; drastically reducing any chance of mechanical failure.
Auxiliary Dosing Contacts
- Allows the user to attach a mixer or priming pump that is activated only when the pump is dosing.
National Industrial Supply
30777 Rancho California #891420
Temecula, CA 92589, USA
Sales: 310.748.6858 - Fax: 310.733.5480 - Email: email@example.com - Website: www.nisupply.com