HACH Digital pH Sensor DPD1P1.1

Digital pH Sensor, PEEK, Convertible, Non-Hazardous Environment

Product Number: DPD1P1.1

Hach's patented differential electrode measurement technique ensures more accurate pH readings, providing increased reliability to reduce downtime and maintenance for measuring pH over traditional pH sensors.

Our DPD1P1 digital pH probe is Convertible Mount complete with a 10m cable and compatible with Hach SC controllers.

This instrument connects to Claros, Hach’s innovative Water Intelligence System, enabling you to seamlessly connect and manage instruments, data, and process – anywhere, anytime. The result is greater confidence in your data and improved efficiency in your operations. To unlock the full potential of Claros, insist on Claros Enabled instruments.

Technical Attributes of Digital pH Sensor DPD1P1.1

Accuracy ± 0.02 pH

Body material PEEK

Cable Connection Digital

Cable Length 10m (33 ft.)

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 General Purpose

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.

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.

Range -2.0 to 14.0 pH

Repeatability ± 0.05 pH

Sensitivity ± 0.01 pH

Sensor Cable 10 m (33 ft.) polyurethane, 4-conductor cable with one shield, rated to 105°C (221°F)

Sensor Thread1" NPT

Storage Conditions4 - 70 °C, 0 - 95% relative humidity (non-condensing)

Temperature Accuracy ± 0.5 °C (± 0.9 °F)

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

Temperature Sensor NTC 300 Ω thermistor for automatic temperature compensation and analyzer temperature readout

Transmission Distance 100 meters (328 ft.), combined length of both senor and add-on cable

Warranty 12 months

Weight 0.316 kg

Wetted MaterialsPEEK 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)