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Industrial Online pH Controller pH/ORP meter, PH-OL620

  • 1 to 3 points calibration
  • 4 to 20mA outputs
  • For monitoring the pH in the chemical, environmental protection and food industries.
  • Accuracy: 0.01pH

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•1 to 3 points calibration with auto-buffer recognition
•Selectable pH buffer set, including the USA and NIST options
•Automatic temperature compensation ensures accurate readings over the entire range
•Automatic electrode diagnosis helps the user decide whether to replace the sensor
•Setup menu allows setting the number of calibration points, alarm limits, hysteresis value, 4 to 20mA output, etc.
•Reset function automatically resumes all settings back to the factory defaults


Model PH-OL620
pH Range -1.00-15.00pH
Resolution 0.01pH
Accuracy ±0.01pH
Calibration Points 1 to 3 points
pH Buffer Options USA(4.01/7.00/10.01),NIST(4.01/6.86/9.18)
mV Range ±1000mV
Resolution 1mV
Accuracy ±1mV
Temperature Range 0~100°C/32~212°F
Resolution 0.1°C/0.1°F
Accuracy ±1°C/±1.8°F
Offset Calibration 1 point, reading ±10°C
Communication Signal Output 4-20mA
Load Max. 500Ω
Low or High Alarm 0.00~14.00pH, selectable
Communication Interface RS485
Connection Terminals Detachable screw terminals
Other Specifications Temperature Compensation 0~100°C, automatic
Environmental Conditions Ambient temperature <60°C, relative humidity< 80%
Power Requirements DC24v
Dimensions 96(L)× 96 (W)×75(H)mm
Weight 350g

    Contact Us Now!

    We will usually contact you within 24 hours. You could also call us (+86-531-88982330) during working hours ( 8:30 am to 5:45 pm UTC+8 Mon.~Sat. ) or use the website live chat to get prompt reply.

    Contact Info

    Rm. 2014, Bldg. 3, Ligaoguojihuayuan, No. 1222, West Aoti Road, Lixia District, Jinan, Shandong

    Phone: +86-531-88982330

    Fax: +86-531-88983691


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