Dräger Atlan A350 - Page 264

264 Instructions for use | Atlan A300, A300 XL, A350, A350 XL SW 1.0n
Service
5. Check the safety features:
– Functional integrity of optical and acoustic alarm generators
–O
2 switch on gas mixing unit (electronically controlled gas mixer)
– Internal battery
– Option: Check the function of the minimum O
2 delivery (mechanically
controlled gas mixer).
6. Check the accuracy of the gas measurement based on a certified test gas
concentration:
– Anesthetic gas measurement:
Isoflurane, 1 Vol%
Sevoflurane, 1 Vol%
Accuracy ±0.35 Vol%
–N
2O measurement, 70 Vol%
Accuracy ±7.6 Vol%
–CO
2 measurement, 5 Vol%
Accuracy ±0.83 Vol%
7. Check the accuracy of the O
2 measurement:
– Ambient air 21 Vol%
Accuracy ±3 Vol%
–100Vol%
Accuracy –5 Vol%
8. Check sample gas flow of the patient-gas measurement module:
– Accuracy 200 ±20 mL/min
9. Check the patient-gas measurement module for leakage:
– Leakage at –200 hPa (cmH
2O)
– <20 hPa/min (cmH
2O/min)
10.Check the non-return valves in the central supply for leakage:
– Leakage ≤20 mL/min
11. Check the operational readiness by means of a system test.
12.Option:
Check the accuracy of the pressure gauge for the internal breathing system:
– Accuracy 30 hPa (cmH
2O) ±10 hPa (cmH2O)
13.Option:
Check the inspiratory O
2 sensor:
– Accuracy of the O
2 sensor
14.Option:
Perform a visual inspection of both safety valves of the passive AGS for damage
and soiling.