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C M FLOWMETERS (India) Pvt Ltd
SPECIFICATION SHEET
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Specification No.
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Rev.
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Reviewed by & date
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Approved by & date:
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HP/2/1
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0
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PART NAME: FLOWMETER ASSY WITH HYPOXIC GUARD (2-TUBE)
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1
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Oxygen Inlet
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7/16” X 20T WF male thread, from rear bottom
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2
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N2O Inlet
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1/2” X 20T WF male thread, from rear bottom
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3
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Mixed gas outlet
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At top right, through 23mm taper as per ISO 5356-1
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4
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Control Knob Oxygen
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White, with special profile as per ISO 5358
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5
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Control Knob N2O
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Blue serrated, serration depth <1mm, knob dia lower than Oxygen knob dia.
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6
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Working pressure (max)
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420 kPa (both N2O & O2)
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7
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Oxygen Tube Range
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0.1 0.1 – 10 l/min, with expanded scale at 0.1 – 1 l/min
Graduations in lpm unit
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8
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N2O Tube Range
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0.2 0.1 – 12 l/min, with expanded scale at 0.1 – 1 l/min
Graduations in lpm unit
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9
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Float Colour
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Red – both for Oxygen & N2O
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10
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Accuracy (both N2O & O2)
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As per CM Standard
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11
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Tube length (both N2O & O2)
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230 mm
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12
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Markings/identification
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Float mark on tubes & other markings
as per ISO 5358
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13
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Mounting
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Back bar mounting, as per drawing
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14
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Housing
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Aluminum frame with clear acrylic front
& Light coloured Luminous background.
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15
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N2O flow opening/closing
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Opening at 0.4-0.6 l/min Oxygen flow, while increasing
Closing at 0.2-0.3 l/min Oxygen flow, while decreasing
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16
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Oxygen / N2O ratio
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30 + 5% of O2 at all settings after N2O flow opening.
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