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貨物所在地:上海上海市

更新時間:2025-02-25 16:07:45

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Stainless Steel, Immersion Body Style, 10m Cable, General Purpose Glass pH Electrode, Integrated Digital Electronics for Plug and Play Capability with Hach sc Digital Controllers

Exceptional Performa

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.

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.

What's in the box

Includes: sensor with 33 ft cable and manual

Specifications

Accuracy:± 0.02 pH
Cable Length:10 m PUR (polyurethane) 4-conductor with one shield, rated to 105 ???°C
Calibration Method:Two point automatic, one point automatic, two point manual, one point manual
Communication:MODBUS
Diameter:1.4 in ( 35.4 mm )
Dimensions (D x L):1.39 in x 10.68 in (35.4 mm x 271.3 mm)
Drift:0.03 pH per 24 hours, non-cumulative
Flow:max. 3 m/s
Flow Rate:3 m (10 ft.) per second, maximum
Length:10.7 in ( 271.3 mm )
Material:Sensor Body: Stainless Steel
Operating Temperature Range:Analog Sensor with Digital Gateway: -5 to 105 °C
Pressure Limit:max. 10.7 bar Sensor only (pressure range of mounting hardware to be checked separay)
Range:pH -2 to 14.0 pH
Repeatability:± 0.05 pH
Sensor Thread:NPT at both ends
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 to 50 °
Temperature Sensor:NTC 300 Ω thermistor for automatic temperature compensation and analyzer temperature readout
Transmission Distance:1000 m (3280 ft.), maximum when used with a termination box.
Wetted Materials:PEEK? or Ryton? (PVDF), salt bridge of matching material with Kynar? junction, glass process electrode, titanium ground electrode, and Viton? 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)

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