YSI 4140(W) pH Sensor

YSI Water Monitoring Panel Product Overview

YSI Water Monitoring Panel Routine Maintenance

Price$290.00 (US Only)

Option

SKU103743Y


In Stock 1

The YSI 4140(W) pH sensor was engineered for high accuracy, durable deployment, and hassle‑free operation. As a part of the intelligent digital Sensor (IDS) platform, it delivers dependable readings in demanding environmental, laboratory, and industrial settings.

  • Overview

    Fully compatible with YSI’s Water Monitoring Panel controlled by the IQ SensorNet system, the 4140 and 4140W offer digital signal conversion and real-time data delivery, empowering operators to optimize process control and confidently obtain regulatory compliance assurance.

    Durability:

     Solid glass structure with gel electrolyte minimizes service needs and extends sensor life.

    Performance Reliability:

    Built-in temperature compensation and digital transmission guard against drift and error. The 3× ceramic diaphragm provides multiple electrolyte pathways for greater stability, faster response, and longer sensor life.

    Digital Smart Sensor:

    When paired with IQ SensorNet controllers, the 4140(W) unlocks advanced capabilities such as:

    • Plug-and-play digital integration
    • Multi-parameter compatibility
    • Data logging and trend analysis
    • Communications via Modbus RTU, Profibus, and Ethernet/IP
    • Can store up to 10 calibrations

    Common Applications

    • Municipal drinking water
    • Industrial Quality Control
    • Environmental monitoring
    • Aquaculture

    Models:

    4140: pH electrode with gel electrolyte, glass shaft, three ceramic junctions, and an integrated temperature sensor. Supplied with a 1.5 m fixed cable.

    4140W: pH electrode with gel electrolyte, glass shaft, three ceramic junctions, and an integrated temperature sensor. It features a detachable cable design (IDS Cable is required and sold separately).

  • Specifications
    Performance  
    Measurement Method Triple Junction Potentiometric Principle
    Measured Value pH
    Measurement Range 0 to 14 pH
    Measurement Interval Continuous
    Accuracy ± 0.004 pH
    Resolution 0.001 pH

    General  
    Minimum Flow Rate Recommended flow rate in flow cell D 17: 11 l/h
    Temperature Measurement Integrated NTC 30 (30 kOhm at 25 °C / 77 °F)
    Temperature Compensation Automatically via an integrated sensor
    Calibration Method 1-point or 2-point calibration
    Electrical Connection Via the IDS connection cable
    Certifications CE, UKCA
    Materials Shaft: glass
    Junctions: 3x Ceramic
    Reference system: Gel
    IDS Plug: Glass fiber reinforced Noryl, TPU, TPC-ET, POM, PVC, PEEK, PBT
    Warranty 6 months

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