pHD-S sc Digital differential pH-sensor, rustfrit stål, 10 m kabel

pHD-S sc Digital differential pH-sensor, rustfrit stål, 10 m kabel
Produktnr.: LXV427.99.10001
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Længere levetid

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.

2 års faseopdelt garanti*

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.

Plug-and-play til SC-kontrolenheder

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.

Pålidelig med indbygget indkapslet forforstærker

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.

Patenteret teknologi

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.

Specifikationer

Compliance: Hazardous location, Maritime, CE
Drift: 0.03 pH pr. 24 timer, ikke-akkumuleret
Driftstemperatur : -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)
Elektrode type: General Purpose
Flow: maks.
Flowhastighed: 3 m per second, maximum
Følsomhed: ± 0,01 pH
Garanti: 24 måneder
Kabelforbindelse: Digital
Kabellængde: 10 m PUR (polyurethan)
4-leder med én skærm, klassificeret til 105 °C
Kalibreringsmetode: Topunkts automatisk, etpunkts automatisk, topunkts manuel, etpunkts manuel.
Kommunikation: Modbus
Længde: 271.3 mm
Måleområde: -2.0 to 14.0 pH
Materiale: Stainless steel
  Titanium
Model: pHD-S sc pH
Monteringsmetode: Immersion
Nedsænkningsdybde: Submersible to 107 m/1050 kPa
Nøjagtighed: ± 0,02 pH
Opbevarings-betingelser:
0 - 95% relative humidity (non-condensing)
Repeterbarhed: ± 0.05 pH
Sensor cable: 10 m (33 ft.) polyurethane, 4-conductor cable with one shield, rated to 105 °C (221°F)
Sensor gevind: NPT i begge ender
Temperaturføler: NTC 300 Ω termistor til automatisk temperaturkompensation og aflæsning af analysatortemperatur
Temperaturkompensation: 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
Temperatur nøjagtighed: ± 0.5 °C (± 0.9 °F)
Transmissions afstand: 100 m, maximum
1000 m, maximum when used with a termination box
Trykområde: Maks. 2 bar overtryk
Vægt: 0,870 kg
Væskeberørte materialer: Stainless steel, PPS, glass, titanium, FKM/FPM o-ring