46 Instructions for use | LAR 8000
en | Preparations for use
4. Plug the adapter of the dosage tester into the plug-in connector of the lung
demand valve.
✓ The rebreather is prepared for testing the dosage.
4.2.2.2 Testing with dosage tester (before the dive)
Prerequisites
– The rebreather is ready for the dosage test
Work equipment
– Rebreather
– Dosage tester
WARNING
Danger to life
If a dosage tester is used that is intended for a different nitrox mixture, the dosage
cannot be tested correctly.
► Only use the dosage tester intended for the nitrox mixture in use.
1. Slowly open the valve of the mixed-gas cylinder.
2. Set the rotary switch to mixed operation (rotary switch is vertical and in the
housing).
3. When using a dosage tester with colored marking, the dosage must be within
the marked range.
Permissible dosage for nitrox B mixture: 5.0 to 6.5 L/min
Permissible dosage for nitrox C mixture: 10.0 to 13.0 L/min
Permissible dosage for nitrox D mixture: 16.0 to 19.0 L/min
If the dosage is outside the tolerance: Do not use rebreather and submit for
repair. Observe regulations and instructions for diving with oxygen and mixed
gas!
4. Close the mixed-gas cylinder valve.
45273
1 Lung demand valve connection 3 Dosage tester case
2 Dosage tester adapter
1
3
2
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