Main Menu
  • หน้าแรก>>Products>>Mini Controller>>Mini Panel Mounted Controller>>อุปกรณ์วัด Mini Controller (pH Mini Controller with 4-20 mA Recorder Output)
  • header_20130408165321.jpg

    อุปกรณ์วัด Mini Controller (pH Mini Controller with 4-20 mA Recorder Output)

    BL 931700

    pH Mini Controller
    with 4-20 mA Recorder Output


    • It’s easy to handle
    • Fire retardant casing
    • Selectable overdose protection system
    • Splash resistant cover


    The BL 931700 mini pH controller has been designed for easy, affordable installation in tight spaces to perform simple yet effective process control. Thanks to its compact size, the BL 931700 mini pH controller 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.This

    BL 931700 is provided with a selectable set point for acid or basic dosage.

    Measurements are directly taken from a pH electrode in the range from 0 to 14 with a 0.01 pH resolution. Accuracy is ensured by two point calibration, performed manually through trimmers on the front panel.

    Users can choose automatic or manual dosing mode with a switch on the front panel. Manual control is particularly useful during maintenance operations, because
    it permits operators to enable or disable the dosing relay according to need. The overtime control system advises users when the relay is active for too long, helping to prevent overdosing.

    In addition, this model features a 4-20 mA analog output for recorder connection.

    Order Information:
    BL 931700-0 (12 VDC) and BL 931700-1 ( 115/230V) are supplied with mounting brackets, transparent cover and instruction manual.




    Range   0.00 to 14.00 pH
    Resolution   0.01 pH
    Accuracy @ 25°C   ±0.02 pH
    Calibration   manual, 2 point, with offset and slope trimmers
    Dosing Relay   max 2A (fuse protected), 250 Vac, 30 Vdc
    Dosing Selection   acid or alkaline
    contact open=acid dosage=relay ON if measurement > set point contact close=alkaline dosage=relay ON if measurement < set point
    Setpoint   adjustable from 0.00 to 14.00 pH
    Overtime   adjustable, typically from 5 to approx. 30 minutes
    Recorder Output   4-20 mA, accuracy ±0.20 mA, 500 Ohm max load
    Input Impedance   102 Ohm
    Power Supply   See Chart
    Dimensions   79 x 49 x 95 mm (3.1 x 1.9 x 3.7’’)
    Weight   See Chart
  • Requesting a Quotation and Ordering Products

    131 Thailand Science Park. Innovation Cluster 1 Building,

    Klong 1, Klong Luang, Pathumthani 12120 Thailand. 

    Tel.  02-191-3928 Fax 02-191-3929

    For more information please contact 081-847-6768 (Ms. Nareerat) IDLine: @alltestkit

    E-mail :


    >>Online Quotation Click here<<