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Hanna Instruments BL Series Mini-Controllers provide a solution for industries that require reliable, efficient and affordable process monitoring and control. Hanna BL Series Mini-Controllers are easy to use, durable and provide precise monitoring and control of pH, TDS, and EC.

Each Mini-Controller is 8 x 5 cm (3 x 2") in size and weighs less than 9 oz. The compact size and simplicity of design allows for easy installation and integration into almost any existing system. Each model is a single set point controller designed to control the operation of a pump, valve or mechanical device for dosing, filling and emptying tanks and rerouting flow.

The control action of each Mini-Controller can be disabled, set to automatic or manually operated directly from the front panel. A selectable "Overtime" overdosing system can deactivate a valve, pump, or other connected device if activation continues for more than the set time, which is adjustable from 5 up to 30 minutes.

Benefits Hanna BL Series Mini RO System Controllers

Monitor and control the pH, EC or TDS of your water treatment system 24 hours a day.
Provided with high impedance pH input and can be used with any pH electrode with standard BNC connector.
Measurements are clearly displayed on the LCD, while the status LED indicates operating mode.
Designed for easy, affordable installation in tight spaces.

Hanna Mini pH Controllers (BL Series)

Model No.	Description	Range
BL981411	pH Mini Controller	0-14 pH
BL931700	pH Mini Controller with 4-20 mA Recorder Output	0-14 pH
HI1001	pH Sensor for BL Series Mini Controllers Flow-thru Monitoring pH Electrode with BNC Connection and 3 m Cable ½" NPT external thread for in-line installation

pH Sensor is sold separately on all pH mini controllers. Mini-controllers available in 12 VDC (add “-0” to end of model number) or 115/230v (add “-1” to end of model number).

BL981411

BL931700

HI1001

Hanna Mini TDS total dissolved solids and EC electrical conductivity Controllers (BL Series)

Model No.	Description	Range
BL983313	EC Conductivity Mini Controller	0-1999 μS/cm
BL983315	TDS Mini Controller 0.1mg/L Resolution	0-200 ppm
BL983329	TDS Mini Controller 1 mg/L Resolution	0-999 ppm
HI7634-00	EC/TDS probe with built-in NTC sensors which provides temperature compensated conductivity measurements. Can be used with the following Hanna meters: BL 983313, BL 983315, BL 983319, BL 983320, BL 983321, BL 983322, BL 983324, BL 983329

Probe is sold separately on all EC and TDS mini controllers. Mini-controllers available in 12 VDC (add “-0” to end of model number) or 115/230v (add “-1” to end of model number).