Hach pHD sc Online Process pH Sensor - pH Sensor for Clean Water

Hach pHD sc Online Process pH Sensor - pH Sensor for Clean Water
Kat. číslo produktu: DPD1R1
Jednotková cena Kontaktujte nás
Dodání do 2 týdnů

Exceptional Performance with the Differential Electrode 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 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.

Innovative 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.

Jaký je obsah balení

Includes: sensor with 33 ft cable and manual

Technické údaje

Compliance: Hazardous location, Maritime, CE
Délka: 271.3 mm
Délka kabelu: 10 m PUR (polyurethane) 4-conductor with one shield, rated to 105°C
Drift: 0.03 pH per 24 hours, non-cumulative
Hmotnost: 0.316 kg
Jaký je obsah balení: Includes: sensor with 33 ft cable and manual
Kalibrační metoda: Two point automatic, one point automatic, two point manual, one point manual.
Komunikace: Modbus
Koncovka kabelu: Digital
Materiál: Ground Electrode: Titanium
Materiál skříně: PPS
Montáž: Convertible
Opakovatelnost: ± 0.05 pH
Podmínky skladování: 4 - 70 °C, 0 - 95% relative humidity (non-condensing)
Přenosová vzdálenost: 1000 m maximálně při použití propojovací skříňky
  100 m (328 ft.), maximum
Přesnost: ± 0,02 pH
Přesnost teploty: ± 0.5 °C (± 0.9 °F)
Provozní teplotní rozsah: -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)
Průtoková rychlost: 3 m (10 ft.) per second, maximum
Rozsah měření: -2,0 - 14,0 pH
Rozsah tlaku: Maximum 10.7 bar . 6.9 bar for Digital Sensor at 70°C, and 6.9 bar for Analog Sensor at 105°C.
Rozsah vlnových délek: 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)
Sensocheck: ± 0,01 pH
Sensor cable: 10 m (33 ft.) polyurethane, 4-conductor cable with one shield, rated to 105°C (221°F)
Teplotní kompenzace: Automatická s termistorem NTC 300 Ω nebo manuálně nastavená na teplotu zadanou uživatelem, další volitelné teplotní korekční faktory (amonné ionty, morfolin nebo uživatelsky definované pH/°C lineární sklon) jsou dostupné pro automatickou compensation 0.0 to 50 °
Teplotní senzor: NTC 300 Ω thermistor for automatic temperature compensation and analyzer temperature readout
Typ elektrody: General Purpose
Záruka: 24 měsíců
Závit senzoru: 1" NPT