ผลิตภัณฑ์ - Process pH Measurement – pHD Product Family

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pHD Sensor

Unprecedented Accuracy

Exceptional Performance with the Differential Electrode Measurement Technology

Lower Maintenance Needs with the Double Junction Salt Bridge

Reliability with the Built-in Encapsulated Preamp

Extended Working Life with the Replaceable Salt Bridge/Protector

Diagram Differential Technology

See How the pHD Sensor Works!

Features & Benefits:

Exceptional Performance with the Differential Technology + | -

Lower Maintenance Needs with the Double Junction Salt Bridge + | -

Reliability with the Built-in Encapsulated Preamp + | -

Extended Working Life with the Replaceable Salt Bridge/Protector + | -

"Plug and Play" to Hach sc Controllers + | -

Durable Body Materials + | -

Versatile Mounting Styles + | -

Differential Sensor Warranty + | -

1" in Diameter

Digital or Analog Communications

Low Profile Electrodes

>> Use Hach’s process pH sensor selection guides to find the right digital or analog pHD sensor for your job

Name	Digital Part #	Analog Part #	Image	Typical Industry	Common Uses	Mounting Hardware
pHD-General Purpose	DPD1P1	PD1P1		Drinking Water Waste Water Industrial Waste Water	General Purpose Sensor Preferred for Waste Water	Convertible
pHD-Clean Water	DPD1R1	PD1R1		Drinking Water Food* Beverage*	Clean Water Preferred for Drinking Water	Convertible
pHD-Insertion Mount	DPD2P1	PD2P1		Drinking Water Waste Water Industrial Waste Water	Direct Pipe Mounting 1.5" Diameter or Greater	Insertion
pHD-Stainless Steel	DPS1	N/A		Drinking Water Waste Water Industrial	Heavier Sensor for Negative Buoyancy Use when Pole Mounting is impossible	Immersion Chain Mount
pHD-HF Resistant	DPD1P3	PD1P3		Semiconductor Petroleum Industry HF Acid Process	Low HF Concentration	Convertible
pHD - Sanitary	DPD3P1	PD3P1		Food, Dairy* Beverage* Pharmaceuticals*	General Purpose in Sanitary Environment	Sanitary

* Not certified for direct contact applications

» Browse all pH/ORP online sensors

Datasheet for pHD

pHD sc CSI Specification

Online Differential pH and ORP Dimensional Drawing

Application Note - Online Analysis Yields Huge Savings & Major Challenges

Application Note - Measure pH at Headbox in Papermaking Process

Application Note - White Water pH in the Pulp and Paper Industry

Application Note - Measure pH & Conductivity-Metal Working-Plating Industries