Hach, DPD1R3.1, Digital pH Sensor, PPS, Convertible, Non-Hazardous Environment
Catalog Number: DPD1R3.1
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| Accuracy | ± 0.02 pH |
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| Body material | PPS |
| Cable Connection | Digital |
| Cable Length | 10 m PUR (polyurethane) 4-conductor with one shield, rated to 105°C |
| Calibration Method | Two point automatic, one point automatic, two point manual, one point manual. |
| Communication | Modbus |
| Compliance | For non-hazardous and non-maritime applications only |
| Drift | 0.03 pH per 24 hours, non-cumulative |
| Electrode Type | HF Resistant |
| Flow Rate | 3 m (10 ft.) per second, maximum |
| Length | 271.3 mm |
| Mounting | Convertible |
| Operating Temperature Range | -5 - 70 °C (23 - 158 °F) pHD and ORP 0 - 50 °C (32 - 122 °F) SS pHD Before initial pH calibration, calibrate the temperature measurement when the sensor is in water or buffer which is at approximately the same temperature as the pH buffers (matches current recommendation) Please Note: When the sensor is placed into the application sample, if that sample is more than 10 °C (18 °F) different than the previous temperature/pH calibration, then it is recommended to recalibrate the temperature while the sensor is in the sample to maintain the ±0.5 °C (±0.9 °F) temperature accuracy specification. |
Unless otherwise stated, the minimum order amount is USD 1,000.
For orders below USD 1,000, an additional handling fee may apply, or we may arrange local delivery / local handover where available.
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| Pressure Range | Maximum 10.7 bar. 6.9 bar for Digital Sensor at 70 °C, and 6.9 bar for Analog Sensor at 105 °C. |
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| Range | -2.0 to 14.0 pH |
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| Repeatability | ± 0.05 pH |
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| Sensitivity | ± 0.01 pH |
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| Sensor Cable | 10 m (33 ft.) polyurethane, 4-conductor cable with one shield, rated to 105°C (221°F) |
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| Sensor Thread | 1" NPT |
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| Storage Conditions | 4 - 70 °C, 0 - 95% relative humidity (non-condensing) |
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| Temperature Accuracy | ± 0.5 °C (± 0.9 °F) |
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| Temperature Compensation | Automatic with NTC 300 Ω thermistor, or manually fixed at a user-entered temperature, additional selectable temperature correction factors (ammonia, morpholine, or user-defined pH/°C linear slope) available for pure water automatic compensation 0.0 - 50 °C |
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| Temperature Sensor | NTC 300 Ω thermistor for automatic temperature compensation and analyzer temperature readout |
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| Transmission Distance | 100 m (328 ft.), maximum |
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| Transmission Distance | 1000 m (3280 ft.), maximum when used with a termination box. |
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| Warranty | 12 months |
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| Weight | 0.316 kg |
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| Wetted Materials | PEEK or PPS, salt bridge of matching material with PVDF junction, glass process electrode, titanium ground electrode, and FKM/FPM® O-ring seals (pH sensor with optional HF-resistant glass process electrode has 316 stainless steel ground electrode, and perfluoroelastomer wetted O-rings; consult factory for other available wetted O-ring materials) |
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| What's included? | Includes: sensor with 33 ft cable and manual |
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