pHionics Inc.
pHionics - D-phi Series 4-20 mA Differential pH Sensor
FrompHionics Inc.
The D-phi Series re"D-phi"nes accuracy, reliability, and ease-of-use for pH sensors. Avoid headaches and wasted money with features that eliminate common installation and maintenance problems. This pH sensor has an extremely stable differential electrode that “D-phies” dilution and debris build-up. It also has a fast response time (96% accurate in less than 5 seconds) and cannot be poisoned by chemicals. Lastly, the sensor is designed for 10+ years of service and the electrode never needs replacement. Order now to enjoy less maintenance and lower expenses for your business.
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Recommended for process control, wastewater, aquaculture, hydroponics, environmental remediation, and other applications requiring extremely stable, user-friendly, and low-maintenance pH monitoring.
- 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.
- 2-wire connection with Reversible Input Protection
- 600 VDC electrical isolation
- 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 $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)
pH Sensor
- pH Range: 0-14 pH
- Output: 4-20 mA | 2-wire
- Electrode Type: Differential
- Wetted Materials: Delrin®, titanium, glass, 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: 96% < 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: ±0.014 pH*
- Accuracy: ±0.014 pH*
- Sensitivity: ±0.01 pH
*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.
pH Sensor
- Output : 4-20 mA
- pH Range : 0-14 pH
- Operational Temperature Range : 0-70°C
- Electrode Type : Silver/silver chloride, double junction, replaceable gel electrode
- Transmitter Type : 2-wire
- Pressure Range : 0-70 psi
- Automatic Temperature Compensation : 0-70°C
- Isolation : 600 VDC
- Power Supply Voltage : 8-40 VDC
- Warm-up Time : 2 seconds
- Response time : 95% < 5 seconds
- Wetted Materials : 316 Stainless Steel, Delrin®, Viton™, glass, epoxy
- Length : 14.25 in (36.20 cm)
- Width : 0.750 in (1.9 cm) maximum
- Weight (No cable) : 0.50 lbs (0.227 kg)
- Linearity : ±0.014 pH*
- Accuracy : ±0.014 pH*
- Sensitivity : ±0.01 pH
- Stability : ±0.03 pH per year
- Repeatability : ±0.01 pH
Temperature Sensor
- Output : 4-20 mA
- Temperature Range : 0-50°C
- Accuracy : +/- 1°C
- Linearity : +/- 0.5°C
- Power Supply Voltage : 7-40 VDC
Cable
- Cable Material : Polyurethane
- Type : 4 conductor, Kevlar® reinforced, water blocked, shielded, twisted-pair wiring
- Maximum Distance : 3 miles
- Resistance per 1000 ft (304.8 m) : 26 Ohms
- Replaceable? : Yes
