Hanna pH and EC Transmitter with Isolated Output: 0 - 1 V - HI98143

The Hanna HI98143 is a robust pH and EC transmitter designed for seamless integration into water treatment, hydroponics, and industrial process control systems. With isolated analog output options—including 0-1 V, 0-4 V, and both active/passive 4-20 mA models—the HI98143 transmitter ensures optimal signal integrity for distributed monitoring setups.

Inputs for pH probe (standard BNC connector) and EC probe (with integrated NTC sensor) enable precise, real-time dual-parameter measurements of water chemistry. The transmitter features automatic temperature compensation (0 to 60 °C), ensuring high accuracy even as environmental conditions change.

• Measures pH from 0 to 14 and EC from 0 to 10 mS/cm, ideal for nutrient solution management and industrial water quality monitoring.
• Manual, two-point trimmer calibration for pH and EC for accuracy and flexibility.
• Compact IP54-rated enclosure (160 × 105 × 31 mm) for installation in harsh or humid environments.
• Operates on 12–24 VDC power supply and weighs 280 g for easy mounting.
• EC accuracy ±2% of full scale, pH accuracy ±0.5% of full scale; high stability through direct wiring and temperature correction (β=2%/°C).
• Supports direct probe connection to minimize signal loss, with four-ring EC probe for improved measurement reliability.
• Supplied with detailed wiring and probe connection guide.

Commonly used in water treatment plants, hydroponic farms, industrial automation, laboratory setups, and commercial water quality projects. For other process monitoring and control instrumentation, explore the Hanna range in the EnvMart industrial catalog.