EBME Forums Forums Maintenance Technical Assistance Calibration Interval for Anaesthetic Vaporiser

Do you follow the manufacturer's recommended frequency and you have your internal schedules for the various vaporisers in your institution. Some of the vaporisers are maintenance free because of the technology used today and some are required only after 10 years.

1. Datex-Ohmeda ADU Aladin--- maintenance free;
2. Drager Vapor 19 series ---- after 10 years;
3. Datex-Ohmeda Tec 5/6/7 ---- appreciate your comments

We always used to reckon on annual calibration checks for all vaporizers.

Thanks Geoff.

I mean calibration at the manufacturer's end.

Regards

WHAT CALIBRATED TEST EQUPMENT DID YOU USE ANNUALY GEOFF? WAS IT ANY BETTER THAN THE GAS BENCH THE ANAESTHETIST WAS USING?
AND AS THE % SETTING IS USED AS A GUIDE WAS IT NOT BETTER KEEPING TO THE OEM SERVICING INTERVALS IE TEC 3 12MONTHS, TEC 5 3 YEARS ETC.

THE DUKE

We used to send them away to Ohmeda et al. There were no "gas benches" in those days.

PS: why are you SHOUTING?

In the good old days we used to use a Riken Gas Analyser for checking accuracy. Servicing was carried out by Ohmeda but we have used General Anaesthetic Services for many years. They perform a service exchange annually for our Tec 4s and a calibration check for our Datum vaporisers.
The tolerance on an anaesthetic vaporiser is relatively high.
It used be +/- 20% or 5% of the maximum graduation, whichever is higher.
Modern calibrated gas benches used in anaesthetic monitors should more than cope with this.