Hanna Instruments

Scientific Equipment

Safety Data Sheets

SDS search & quick download

Free Delivery

Most of mainland GB for orders over £50. Other charges may apply - see more

Hanna Care

We take the long view, looking after existing customers as much as delighting new ones!

Certificates of Analysis

Download a copy of the certificate of analysis for your solution

BL-7917-2 ORP Controller and Pump

BL-7917-2 ORP Controller and Pump

BL-7917-2 ORP Controller and Pump

BL-7917-2 ORP Controller and Pump

Use with HI-2001 or HI-29310B/5
2 year manufacturer warranty
£765.05 (exc. VAT) £918.06 (inc. VAT)

The BL7917 combines a ORP meter with a chemical dosing pump in order to maintain a desired set point in process applications.

  • Two advanced instruments in one compact unit
  • Convenient installation with all controls on front panel
  • Widely used in plating, wastewater treatment, water treatment and swimming pools
  • Isolated 4 to 20 mA recorder output
  • BL-7917-2 ORP Controller and Pump information

    Hanna's extended description

    • 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 which avoids over dosage of oxidising or reducing agents.
    • Alarm contact is activated whenever the ORP reading varies more than 200 mV 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.

    Order Information:

    The BL 7917 series is supplied with discharge and suction valves, polyethylene tubing, power cable and instructions.



    Water Resistant – Can withstand temporary exposure to water, but should not be submerged or washed under running water.



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

    Specifications

    Specifications list

    Specifications

    Range -999 mV to +999 mV
    Resolution 1 mV
    Accuracy mV +5 mV
    Flow Rate 13.3, 11.7, 10.1, 9.0, 7.8 (LPH)
    Input Impedance 1012 Ohm
    Dosage proportional, oxidizing or reducing, user selectable
    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 220v
    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.)

    Questions & Answers

    Got a question to ask? Use this form to submit your question.
    Question will be displayed after moderation.
    Name* Product Question*
    No questions yet?
    Don 't be shy, be the first to ask.