Hanna Instruments

Scientific Equipment

Safety Data Sheets

SDS search & quick download

Free Delivery

Most of mainland GB for orders over £50. Other charges may apply - see more

Hanna Care

We take the long view, looking after existing customers as much as delighting new ones!

Certificates of Analysis

Download a copy of the certificate of analysis for your solution
  • Home /
  • HI-4000-51 Gas Sensor Replacement pH

HI-4000-51 Gas Sensor Replacement pH

HI-4000-51 Gas Sensor Replacement pH

Hanna HI-4000-51 Gas Sensor Replacement pH

HI-4000-51 Gas Sensor Replacement pH

Ask a question
Combination pH assembly
6 months manufacturers warranty
£429.60 (exc. VAT) £515.52 (inc. VAT)

The HI-4000-51 replacement pH reference assembly is for use with Hanna’s HI-4101 ammonia gas sensing Ion Selective Electrode (ISE). This internal glass pH assembly provides the sensing and reference components for the ammonia combination ISE.

HI-4000-51 Gas Sensor Replacement pH information

Hanna's extended description

The HI-4000-51 is a gas sensor replacement pH for ammonia sensor.


How it works

A gas sensor works due to the partial pressure of the measured gas in solution. The dissolved gas in the sample diffuses into the membrane and changes the pH in a thin film of unbuffered electrolyte on the surface of the internal pH sensor. Diffusion continues until the partial pressure of the sample and the thin film of electrolyte are the same. The pH change is proportional to the concentration of dissolved gas in the sample solution.



Solutions are available in a variety of sizes. Check whether the solution you require is available in 1 gallon, 500ml, or 230ml bottles, or individual 20ml sachets.

Specifications

Specifications list

Reviews

Questions & Answers

Got a question to ask? Use this form to submit your question.
Question will be displayed after moderation.
Name* Product Question*
No questions yet?
Don 't be shy, be the first to ask.