PD1R3, Hach pHD Online Process pH Sensor - pH Sensor for Low pH

Name: Hach pHD Online Process pH Sensor - pH Sensor for Low pH
Brand: Hach
SKU: PD1R3

Catalog Number: PD1R3

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Category

Single-Use Sensors

TagsOnline Sensors and Controllers pH & ORP Sensors Analog Differential pH/ORP Sensors Analog Differential pH Sensors

Description

The smart choice for accurate and reliable online process pH measurement
Low pH Online Process pH Sensor - pHD Technology, Glass pH Electrode, PPS Housing, Convertible Mount, 4.5m Cable
Exceptional Process pH Sensor Performance with the Differential Electrode pHD Measurement Technique
This field-proven technique uses three electrodes instead of the two normally used in conventional pH sensors. Process and reference electrodes measure the pH differentially with respect to a third ground electrode. The end result is unsurpassed measurement accuracy, reduced reference junction potential, and elimination of sensor ground loops. These process pH sensors provide greater reliability, resulting in less downtime and maintenance.
Lower Maintenance Needs with the Double Junction Salt Bridge
The double junction salt bridge creates a barrier to contamination which minimizes the dilution of the internal standard cell solution. The result is lower maintenance needs and a longer time period between calibrations.
Extended Working Life with the Replaceable Salt Bridge/Protector
The unique, replaceable salt bridge holds an extraordinary volume of buffer to extend the working life of the sensor by protecting the reference electrode from harsh process conditions. The salt bridge simply threads onto the end of the sensor if replacement is needed.
Reliability with Built-in Encapsulated Preamp
Encapsulated construction protects the sensor’s built-in preamp from moisture and humidity, ensuring reliable sensor operation. The preamp in the pHD analog sensor produces a strong signal, enabling the sensor to be located up to 1000 m (3280 ft.) from the analyzer.
Patented Technology
The former GLI, now a Hach Company brand, invented the Differential Electrode Technique for pH measurement in 1970. The pHD™ sensor series (U.S. Patent Number 6395158B1, dated May 28, 2002) takes this field-proven technology to a new level.
Versatile Mounting Styles
Sensors are available in four mounting styles—convertible, insertion, immersion, and sanitary.

Specifications

Technical Attributes

Accuracy	0.02 pH
Body material	PPS
Cable Connection	Analog
Cable Length	4.5 m
Calibration Method	Two point automatic, one point automatic, two point manual, one point manual.
Communication	MODBUS
Diameter	34.9 mm
Drift	0.03 pH per 24 hours, non-cumulative
Electrode Type	HF Resistant
Flow	max. 3 m/s
Length	196.3 mm
Material	Ground Electrode: Titanium
Mounting	Convertible
Operating Temperature Range	-5 - 105 °C
Pressure Range	10.7 bar Sensor only (pressure range of mounting hardware to be checked separately)
Range	-2.0 - 14.0 pH
Repeatability	± 0.05 pH
Sensor Thread	1" NPT (only at upper end)
Special Notes	pH-HF Glass
Temperature Accuracy	± 0.5 °C
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 °

Ordering

Notice

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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