pHionics - Model D-pHi Series -4-20 mA Differential ORP Sensor
If you want a user-friendly, low-maintenance ORP monitoring system, then this 4-20 mA ORP (redox) sensor is your answer.
With over 40 years in the water quality business and customers like IBM, Seimens, and Lawrence-Livermore Berkeley Labs, pHionics has the experience and products you need to succeed.
Enjoy hassle-free installation, calibration, and cleaning. Avoid headaches like ground loops, electrode poisoning, and electrode replacement thanks to the differential electrode. With all these benefits, a 2-year warranty, and exceptional product support*, this ORP sensor serves up incredible value for your business.
Oh, and it is designed to last 10+ years.
Order now to experience the D-phi difference.
*Support includes comprehensive troubleshooting resources, responsive customer service, and discounted rebuilding or replacement services in the event of damage.
Recommended for process control, wastewater, aquaculture, hydroponics, environmental remediation, and other applications requiring user-friendly and low-maintenance ORP sensors.
- Linear 4-20 mA output
- Simple to use and easy to calibrate
- Accurate over long distances
- Compatible with wide variety of dataloggers, PLCs, SCADA, and IoT systems.
- Differential electrode technology (Click to learn more)
- Refillable electrode that never needs replacement
- 1-min refill procedure every 1-2 months for continuous reliable performance
- Reduces the need for frequent calibration checks and recalibrations, leading to lower maintenance overall
- Estimated maintenance cost of only $36-85 USD per year
- Click to view Reference Refill Kit
- Chemical-resistant titanium and Delrin® housing (PVDF available)
- Built-in 0-50°C temperature sensor (secondary 4-20 mA output)
- 3/4″ or 1″ NPT backend (depending on model)
- Fully submersible to 100 psi and 150°F
- Dry storage
- Automatic Temperature Compensation (ATC)
- 600 VDC electrical isolation
- 2-wire connection with Reversible Input Protection
ORP Sensor
- ORP Range: -1000 to +1000 mV
- Output: 4-20 mA | 2-wire
- Electrode Type: Differential
- Wetted Materials: Delrin®, titanium, glass, platinum, Viton™
- Operational Temperature Range: 32-155°F (0-70°C)
- Thread Type: 3/4 inch MNPT or 1 inch MNPT
- Max Flow Rate: 10 ft per second
- Pressure Range: 0-100 psi
- Automatic Temperature Compensation: 32-155°F (0-70°C)
- Power Supply Voltage: 8-40 VDC
- Warm-up Time: 2 seconds
- Response time: 95% < 5 seconds
- Length: 9.25 in (23.5 cm)
- Width: 1.00 in (2.54 cm) max.
- Weight (No cable): 0.50 lbs (0.227 kg)
- Linearity: ±4 mV*
- Accuracy: ±4 mV*
- Sensitivity: 1 mV
*After proper calibration
Cable
- Cable Material: Polyurethane
- Type: Kevlar® reinforced, water blocked, shielded, twisted-pair wiring
- Maximum Distance: 3 miles
- Resistance per 1000 ft (304.8 m): 26 Ohms
- Replaceable?: No
pHionics products comply fully with all applicable EU Directives to bear the CE Mark.
Delrin® and Kevlar® are registered trademarks of DuPont™.
Viton™ is a trademark of Chemours.