GastroCH4ECK Maintenance Guidelines

What are the GastroCH4ECK Maintenance Guidelines?

Routine maintenance

See the operating manual for full maintenance instructions.

The GastroCH4ECK Gastrolyzer should be switched off once every 24 hours. The device must be calibrated once every 4 weeks.

This document is intended for Guidance only

The monitor will provide daily reminders via the reminder screen after turning on the GastroCH4ECK Gastrolyzer for 1 month leading up to the sensor change due date. Once this date has elapsed the date will turn red to indicate that sensor replacement is overdue: a. The H2 sensor should be replaced every 2 years; b. The O2 sensor should be replaced every 2 years; c. The CH4 sensor should be replaced every 5 years.


  • The GastroCH4ECK Gastrolyzer should be calibrated with 100ppm H2 & CH4 once a month

  • It is recommended that only Bedfont calibration gas is used; the unit may give false readings if not calibrated.


Wipe the external surfaces of the instrument with a product specifically developed for this purpose. Bedfont provides instrument cleansing wipes that contain an antimicrobial liquid. It is recommended that wipes are used once and for one surface only.

NEVER use alcohol or cleaning products containing alcohol or other organic solvents as these vapours will damage the sensor within the instrument.

Under no circumstances should the instrument be immersed in or splashed with liquid.

Contact Bedfont or your local distributor for replacements:

  • GastroCH4ECK Gastrolyzer mouthpieces Breath bags
  • Sampling line
  • Moisture removal filter
  • Alcohol-free instrument cleansing wipes


FRANÇAIS: Pour télécharger les principes relatifs à l’entretien et au contrôle des infections en Français, veuillez consulter

DEUTSCH: Um Richtlinien zur Infektionskontrolle und Wartung auf Deutsch herunterzuladen besuchen Sie bitte die Homepage

ESPAÑOL: Para descargar las Directrices de Control de Infecciones y Mantenimiento en español, visite

ITALIANO: Per scaricare le guida per il controllo delle infezioni e la manutenzione in italiano, visitare il sito

This document is intended for guidance only.

NEDERLANDS: Ga naar om de richtlijnen voor infectiebestrijding en onderhoud te downloaden in het Netherlands

If the problem persists or has not been resolved by the information provided above, please contact Bedfont or your local distributor for more advice.