Product Description

Hanna BL-7916-2 pH Controller and Pump

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pH controller and dosing pumps 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 valve which ensures precise dosage and avoids costly waste of chemicals due to over dosage.

Alarm contact is activated whenever the pH value varies more than 2 pH units 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.

Mains powered – All mains operated equipment is compatible with UK AC voltage and frequency – 230V, 50Hz.

Interchangeable Electrode – One controller for all jobs thanks to HANNA’s wide range of interchangeable electrodes. Simply change the electrode for the task ahead.

Specifications Hanna BL-7916-2 pH Controller and Pump

Range pH		0.00 to 14.00 pH
Resolution		0.01 pH
Accuracy pH		±0.01 pH
Flow Rate		13.3, 11.7, 10.1, 9.0, 7.8 (LPH)
Input Impedance		10¹² Ohm
Dosage		proportional, acid or base, user selectable
Calibration		offset: ±1 pH with trimmer; slope: 85 to 115% with trimmer
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		230V ±15%; 50/60Hz (40W)
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.)