Ohio Medical 7700 Series User manual

7700 Pressure Compensated Flowmeter
Instructions for Use
®
7700-0631-000 (Rev. 10) 03/2020
ISOANSI
ISO
ANSI

7700-0631-000 (Rev. 10) 03/20202
Safety Instructions
This manual provides you with important information about the 7700 Series Pressure Compensated Flowmeter and should
be read carefully to ensure the safe and proper use of this product. READ AND UNDERSTAND ALL THE SAFETY AND
OPERATING INSTRUCTIONS CONTAINED IN THIS BOOKLET BEFORE USING THIS PRODUCT. IF YOU DO NOT UNDERSTAND
THESE INSTRUCTIONS, OR HAVE ANY QUESTIONS, CONTACT YOUR SUPERVISOR, DEALER OR THE MANUFACTURER BEFORE
ATTEMPTING TO USE THE DEVICE.
Intended Use
A compensated thorpe tube flowmeter is a device intended for medical purposes that is used to control and measure
gas flow rate accurately. The device includes a vertically mounted tube with the outlet of the flowmeter calibrated to a
reference pressure.
WARNING Indicates a potentially hazardous situation, if not avoided, could result in death or serious injury.
ATTENTION Indicates a potentially hazardous situation, if not avoided, could result in minor or moderate injury.
CAUTION Indicates a potentially hazardous situation, which, if not avoided could result in damage to the device or other property.
⚠Caution, consult accompanying documents Manufacturer’s authorized representative
in the European Union
Use no oil Read L/min at center of ball Serial Number
Symbol indicates the device complies with the requirements of Directive 93/42/EEC concerning medical devices (on CE
marked devices only)
Caution: Federal (USA) Law restricts this device to sale by or on the order of a licensed healthcare provider.
Receiving/Inspection
Remove product from package and inspect for damage. If product is damaged, DO NOT USE and contact your dealer or
equipment provider.
CAUTION The tube inside the 0-200 cc/min and 0-1 L/min flowmeter is made of glass and is fragile. Special care should
be taken to avoid breaking the glass.
ATTENTION It is very important to allow product to remain in original packaging for 24 hours to acclimate to room temperature
before use.
ATTENTION Store the product in a sealed package to avoid environmental damage. The operating and storage temperature
for the Flowmeter should reflect typical environmental conditions of a medical facility environment.
User Responsibility
WARNING Service of this device should ONLY be performed by properly trained individuals. The Flowmeter must ONLY
be used under the direction of a healthcare professional who is trained in its use.
This product performs as explained in this manual, as long as the assembly, use, repair and maintenance are properly followed
according to our instructions. Periodic review of this device is recommended. If any damage or defects are present, the product
should not be used. This includes parts that may have been altered, contaminated, worn or missing. If any of the above are
noted, immediate repair / replacement is required. In compliance with the manufacturers warranty, repair of this device is not
to be performed by anyone other than a qualified professional. If this device is subject to improper maintenance, repair, use
and/or abuse leading to malfunction of the device, replacement is the sole responsibility of the user.
WARNING Due to the possibility of explosion caused by static charge, operation of this device is not to be done if flammable
anesthetics are present.
TO MINIMIZE THE RISK OF EXPLOSION OR FIRE:
• NEVER attempt to attach a Flowmeter directly to a cylinder
• NEVER use grease, oil, organic lubricants or flammable materials on or near the Flowmeter
• NEVER smoke in an area where oxygen is being used
• NEVER use any type of flame or flammable or explosive material near the Flowmeter
• ALWAYS follow CGA and ANSI standards for Flowmeters and Medical Gas Products (E-7) and Oxygen Handling (G-4)
ATTENTION Keep the Flowmeter in a clean area when not being used.
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7700-0631-000 (Rev. 10) 03/2020 3
ATTENTION Ensure that all the connections are tightened and free of leaks prior to use. Use only an oxygen-safe leak
detector when testing for leaks.
WARNING Each Flowmeter is for use with only one type of gas.
Specifications*
Gas Scale Increments Accuracy
Averages
Max.
Flood/Flush
Transport/Storage
Requirements
Oxygen 0-200 cc/min** 25 cc/min
(starts at 25 cc/min) +/- 20 cc/min 500 cc/min -40˚F to 140˚F
(-40˚C to 60˚C)
Oxygen 0-1 L/min** 0.1 L/min
(starts at 0.1 L/min) +/- 0.1 L/min 2.5 L/min -40˚F to 140˚F
(-40˚C to 60˚C)
Oxygen 0-3.5 L/min**
0.125 L/min
(from 0.125-1 L/min)
0.25 L/min
(from 1-3.5 L/min)
+/- 0.125 L/min or
+/- 10% of reading
(whichever is greater)
45 L/min -40˚F to 140˚F
(-40˚C to 60˚C)
Gas Scale Increments Accuracy
Averages
Min.
Flood/Flush
Transport/Storage
Requirements
Oxygen 0-8 L/min 0.5 L/min
(starts at 0.5 L/min)
+/- 0.5 L/min or
+/- 10% of reading
(whichever is greater)
50 L/min -40˚F to 140˚F
(-40˚C to 60˚C)
Oxygen &
Medical Air 0-15 L/min
0.5 L/min
(from 1-5 L/min)
1 L/min
(from 5-15 L/min)
+/- 0.5 L/min or
+/- 10% of reading
(whichever is greater)
50 L/min -40˚F to 140˚F
(-40˚C to 60˚C)
Oxygen 0-30 L/min
2 L/min
(from 4-30 L/min)
(starts at 3 L/min)
+/- 0.5 L/min or
+/- 10% of reading
(whichever is greater)
70 L/min -40˚F to 140˚F
(-40˚C to 60˚C)
Oxygen 0-70 L/min 5 L/min
(starts at 10 L/min) +/- 10% of reading 75 L/min -40˚F to 140˚F
(-40˚C to 60˚C)
*Specifications are nominal, subject to change without notice. Flowmeters are calibrated at the pressure indicated on the flow tube, 70°F (21°C),
at standard atmospheric pressure. **For use in Neonatal, Pediatric and other low flow applications.
WARNING Prior to administering medical air or oxygen, confirm required flow and frequently monitor the flow.
WARNING 0-200 cc/min, 0-1 L/min, and 0-3.5 L/min Flowmeters are NOT to be used for resuscitation.
MRI WARNING This product may contain magnetic, ferrous material that may aect the result of an MRI.
MR conditional options may be available.
Operating Instructions
1. Turn Flowmeter o my turning knob fully clockwise.
2. Inspect the Flowmeter for damage. If any damage is found, DO NOT use the Flowmeter.
CAUTION Over tightening the knob when turning the Flowmeter o will cause damage. The Flowmeter MUST be
positioned vertically to ensure maximum accuracy.
WARNING The Flow Tube specifies the gas and pressure required. The accuracy will be aected if a dierent pressure,
other than the one specified, is used.
3. Connect the Flowmeter to the supply pressure specified on the Flow Tube.
NOTE: Supply pressure of 50 psi or 60 psi.
WARNING The accuracy may be aected if the temperature of the gas is dierent than 70˚F (21˚C) and the supply
pressure is dierent than indicated on the Flow Tube.

7700-0631-000 (Rev. 10) 03/20204
NOTE: The accuracy of the flow will not be aected by the attachment of accessories, however, the indicated flow
may change.
WARNING Connection to the gas source must be done by using only the appropriately indexed fitting.
4. Ensure that the Float Ball is at the very bottom of the Flow Tube when turned o.
NOTE: If the Float Ball is not at the bottom of the Flow Tube, the Flowmeter could be leaking. Please
contact your dealer or Ohio Medical, LLC.
5. Adjusting the Flow: To DECREASE Flow: Turn the knob clockwise.
To INCREASE Flow: Turn the know counter clockwise.
6. To set the flow, align the center of the Float Ball to the indicator line on the Flow Tube.
WARNING To avoid injury ALWAYS confirm flow requirement for patient prior to dispensing. Check flow frequently while
being administered to patient.
7. If the flow is adjusted beyond the highest calibrated indicator, an undetermined flow will arise.
8. Turn knob completely counter clockwise to achieve maximum Flow/Flush Flow.
NOTE: Any flow beyond the highest calibrated line of the Flow Tube with unrestricted flow is Flood/Flush Flow.
Cleaning Instructions
Use a clean damp cloth with a mild cleaning solution to wipe outside of product. DO NOT gas sterilize with Ethylene Oxide
(ETO). DO NOT clean with pungent hydrocarbons.
CAUTION DO NOT submerge product in any form of liquid. This will cause damage and void the warranty.
Troubleshooting
If the Flowmeter does not function properly, contact your dealer or equipment provider.
Maintenance Prevention
Before and after each use, INSPECT THE FLOWMETER FOR DAMAGE.
WARNING When changing connectors on the Flowmeter for service or replacement, NEVER re-attach connectors of a
dierent gas. Doing so may result in patient injury or damage to the equipment
CAUTION Disconnect Flowmeter from gas supply BEFORE SERVICING.
WARNING Ensure shroud is securely tightened to prevent disconnection under pressure. Turn Clockwise to tighten.
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