LED pH/ORP Indicator/Controller
- Compact 1/8 DIN size
- Dual set point control
- Surprisingly inexpensive
- Automatic temperature compensation
pH MINI CONTROLLER WITH 4-20mA
RECORDER OUTPUT
- BL931700 is designed for easy, affordable
installation in tight spaces..
- Thanks to its compact size, BL931700 can be installed
right next to tanks or vats.
- This versatile controller is ideal for a wide variety
of applications, such as textiles, papers, photographic solutions,
plating baths, chemicals and water treatment.
- BL931700 is provided with a selectable setpoint for
acid or basic dosage. Measurements are directly acquired from a pH
electrode in the range from 0 to 14 with a 0.01 pH resolution.
- Choose automatic or manual dosing mode with a switch
on the front panel.
- An overtime control system advises you when the
relay is active for too long, helping to prevent overdosing.
- The BL931700 features a 4-20mA analog output for
recorder connection.
- Two models are available, with different supply input
at 115/230 VAC or 12 VCD.
BL 7916 BLACK STONE pH CONTROLLER & PUMP
- pH controller and dosing pump in one compact unit.
- ±0.01 pH accuracy with unbeatable performance.
- Isolated 4 to 20 mA recorder output.
- Proportional dosing slows the pump down when the measured pH level approaches the
set value which ensures precise dosage and avoids costly waste of chemicals due to
over-dosage.
- Alarm contact is activated whenever the pH value varies by more than 2 pH units
from the setpoint.
- Auxiliary Contacts allow the user to attach a mixer or priming pump that is
activated only when the pump is dosing.
- Kynar® and Teflon® materials are used for all parts that come into
contact with liquid.
