Hach pHD sc Online Process pH Sensor, HF Resistance, Low pH, 10 m Cable

Hach pHD sc Online Process pH Sensor, HF Resistance, Low pH, 10 m Cable
Продукт №: DPD1P3
Единична цена Свържете се с нас
Доставка до 2 седмици

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 minimises 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 analogue sensor produces a strong signal, enabling the sensor to be located up to 1000 m (3280 ft.) from the analyser.

Innovative Technology

The former GLI, now a Hach Company brand, invented the Differential Electrode Technique for pH measurement in 1970. The pHD sensor series takes this field-proven technology to a new level.

Какво има в кутията

Includes: sensor with 33 ft cable and manual

Спецификации

Compliance: Hazardous location, Maritime, CE
Sensor cable: 10 m (33 ft.) polyurethane, 4-conductor cable with one shield, rated to 105°C (221°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
Гаранция: 24 месеца
Дебит: 3 m (10 ft.) per second, maximum
Диапазон на налягането: Maximum 10.7 bar . 6.9 bar for Digital Sensor at 70°C, and 6.9 bar for Analog Sensor at 105°C.
Дължина: 271.3 mm
Дължина на кабела: 10 m PUR (polyurethane) 4-conductor with one shield, rated to 105°C
Елекрод, тип: HF Resistant
Измерване, диапазон: -2.0 to 14.0 pH
Изместване на показанията: 0.03 pH per 24 hours, non-cumulative
Кабелна връзка: Digital
Какво има в кутията: Includes: sensor with 33 ft cable and manual
Комуникация: Modbus
Материал на тялото (измервателния уред): PEEK
Метод на калибриране: Two point automatic, one point automatic, two point manual, one point manual.
Монтаж, вид: Convertible
Навлажнени материали: 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)
Повторяемост: ± 0.05 pH
Работна температура: -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)
Разстояние на предаване: 1000 m (3280 ft.), maximum when used with a termination box.
  100 m (328 ft.), maximum
Резба на датчика: 1" NPT
Тегло: 0,316 kg
Температура, точност: ± 0.5 °C (± 0.9 °F)
Температурен датчик: NTC 300 Ω thermistor for automatic temperature compensation and analyzer temperature readout
Точност: ± 0,02 pH
Условия на съхранение: 4 - 70°C, 0-95% relative humidity (non-condensing)
Чувствителност: ± 0,01 pH