HACH DRC2K5N Digital pH/ORP Sensor – Wide-Range ORP Measurement

Key technical specifications

• Manufacturer & model: HACH, DRC2K5N digital pH/ORP sensor
• Measurement range: -2000 mV to 2000 mV (ORP)
• Accuracy: ±20 mV (limited by calibration solution accuracy)
• Body material: PVDF with platinum electrode
• Operating temperature: 0 °C to 105 °C
• Pressure range: 0 to 6.9 bar at 100 °C (0‑100 psig at 212 °F)
• Sensor cable: Integral coaxial with two conductors (temperature option); 4.5 m (15 ft) length
• Mounting thread: 0.75" NPT
• Wetted materials: PVDF, PTFE double junction, glass, platinum, FKM/FPM O‑rings

Digital performance & signal integrity

• Digital signal allows transmission up to 1000 m (3280 ft) with Hach Gateway or sc100 controller.
• Built‑in platinum electrode provides stable, linear response across full ORP range.
• Excellent noise immunity eliminates interference in industrial environments.
• No temperature compensation; use optional conductors for external RTD if needed.
• The HACH DRC2K5N works with Hach digital controllers for plug‑and‑play operation.

Frequently asked questions (FAQ)

• Does this sensor measure pH as well as ORP? The DRC2K5N is primarily an ORP sensor using a platinum electrode; for pH measurement, order a dedicated pH electrode version.
• What is the maximum distance from the controller? You can place the sensor up to 1000 m from a Hach Digital Gateway or sc100 controller.
• Can I use this sensor with an analog SC200? No, the DRC2K5N is a digital sensor and requires a Hach digital controller or gateway.
• Is the cable replaceable? The cable is integral and factory‑terminated; handle with care to avoid damage.
• What is the pressure limit at lower temperatures? Pressure rating decreases as temperature rises; at 25 °C the sensor withstands higher pressure – refer to Hach manual for derating curve.

© 2026 Ubest Automation Limited. https://www.ubestplc.com/ All rights reserved.
Contact: sales@ubestplc.com | Phone: +86 180 3000 5825