Operator's Manual

Rad-97 Chapter 16: Service and Maintenance
www.masimo.com 210 Masimo
1. Empty the gas bottle completely.
2. Once the gas bottle is empty, drill a hole in the bottle.
CAUTION: Ensure that the bottle is completely empty of gas before drilling into
the bottle.
3. Write "Empty" on the bottle and follow local regulations for disposal of metallic
(metal) gas bottles.
Leakage Check
To perform a leakage check, follow the steps below.
1. Connect a new NomoLine sampling line with male Luer lock to the input connector
and check that the LEGI connector shows a steady green light.
2. Connect a short silicon tubing with an inner diameter of 3/32" (2.4 mm) to the
NomoLine male Luer.
3. Exhale a long breath into the silicon tubing until the CO
2
concentration is greater
than 4.5 vol% or 34 mmHg.
4. Quickly connect the silicon tubing tightly to the exhaust port.
5. Wait 1 minute until the CO
2
concentration has stabilized, note the value.
6. Wait 1 minute and check that the CO
2
concentration has not decreased more than
0.4 vol% or 3 mmHg.
7. If it has decreased more there is a major leakage in the NomoLine capnography
unit or in the NomoLine sampling line. Do not operate the NomoLine capnography
if there is a major leakage in the unit.
Zeroing
The gas analyzer needs from time to time to establish a zero reference level for the gas
measurements and the flow. The zero calibration is here referred to as “zeroing".
NomoLine capnography performs zeroing by switching the gas sampling from the respiratory
circuit to ambient air. The automatic zeroing is performed 1 to 3 times per day, and takes less
than 3 seconds.
During zeroing, if NomoLine capnography’s exhaust gas is returned to the patient circuit, the
returned gas level will be different from the gas level at the sampling site.
Repair Policy
Masimo or an authorized service department must perform warranty repair and service. Do
not use malfunctioning equipment. Have the device repaired.
Clean contaminated and/or dirty equipment before returning, following the cleaning
procedure described in Cleaning on page 203. Make sure the equipment is fully dry before
packing.
To return the device for service, refer to Return Procedure on page 211.