Model FM - Flowmeters Devices
From Flowmeter Units
The FM flowmeters are devices for the supply of medical gases with two to six antistatic and graduated tubes and completed with an integrated dosage unit. The body is made of anodized aluminum and the inlet connections for O2, Air and N2O at the bottom of the flowmeter are arranged to be connected to hospital centralized gas plants or to cylinders complete with pressure regulators.
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Technical Specifications
- Accuracy: ±10% read value or ±0.3 L/min. if greater (± 10% E.O.S. for flow < than 1 L/min.)
- Inlet pressures: 3.5 - 5 bar ±20%
- N2O blocking device: the supply of N2O is blocked when the O2 pressure drops below 0.4 bar ± 0.2 bar.
- Charge loss level, side under pressure (before the adjusting needle valves): less than 25 ml/min. in normal pressure conditions (ISO 5358)
- Charge loss level, low pressure side (after the adjusting needle valves, vaporizer excluded): less than 25 ml/min. at 30 cm H2O
- Hypoxyguard system: at least 30% -3% O2 is garanteed in the mixture with N2O opening value equal to 0.4 L/min. (with inlet pressures of 3.5 bar)
- Mixed gases outlet connection: conical connection 23 mm F ISO DIN 5356/1
- Gases inlet connections: hose connector Ø 6 mm
- O2 quick dosage (if foreseen): when pushed it can supply more than 45 L/min. O2
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