Frequently Asked Questions for Collins PFT Systems

The list below of frequently asked questions and troubleshooting problems for Collins PFT Systems is based on information compiled from the Collins Service Manuals and from our own experience.

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Are you the manufacturer of Collins PFT equipment?
No, we are a dealer and repair service center. Collins, part of the Ferraris Medical System, is the manufacturer. However, we are specialists in the reconditioning and refurbishing of Collins and Cybermedic equipment. Most Cybermedic and Collins systems are no longer available on the market.

Do you sell or repair Collins Pulmonary Function Testing Systems?
We repair and sell refurbished models of Cybermedic and Collins systems, including the Collins GS 4G Fast Gas System. Our Full Gas PFT systems come with a two year warranty, and we can also provide Service Contracts.

Do you take Medicare for repairs or sales of Collins PFT systems?
No, we are not set up to deal with Medicare or other insurance companies. We accept payment by credit card and check, and can itemize bills for you to submit to your company. We can also arrange for a leasing project through Crown Credit.

Do you sell replacement parts for the Collins PFT System?
Yes. Call 1-888-730-5463 or email us and we will supply you with part numbers and competitive pricing.

If you suspect a leak in the system:

Exit the Collins PLUS program. Bring up the DOS command prompt and run the batchfile LEAKCHK. Follow the prompts on the screen:

Did volume reading drop? If no, continue with Leak Test and proceed to "Leak Check with Blower Running" (see below). If yes, remove tubes from the Universal Breathing Valve. Manually raise bell, and insert rubber stoppers into tubing ends.

Did volume reading drop? If no, the leak is in the Universal Breathing Valve. If yes, remove tube from CO2 cannister. Manually raise bell and connect main spirometer port to CO2 cannister.

Did volume reading drop? If no, the leak is in the other tube. If yes, remove tube from GS. Insert rubber stopper into C02 cannister. Manually raise spirometer bell. Insert second rubber stopper into main spirometer port.

Did volume reading drop? If no, the leak is in tubing last removed from machine. If yes, Remove cover surrounding spirometer body. Remove tubing connected to the inout side of the motor blower. Block tubing end with rubber stopper. Temporarily remove rubber stopper from main spirometer port. Manually raise bell. Re-insert rubber stopper.

Did volume reading drop? If no, the leak is in the C02 cannister or Motor Blower Housing. If yes, the leak is in either the spirometer bell, main spirometer port, or tubing connected to the inside of the the spirometer body.

Leak Check with Blower Running:
Did volume reading rise? If no, the leak check is complete. Press any key to end the LEAKCHK batch file. If yes, the CO2 cannister is cause of the problem. Check for cracks. Check to see that the four screws which hold the cover are secure. Assure the cannister is installed properly. Check the three tubing connections to the motor blower housing. End of troubleshooting check.

If you suspect a problem with the FRC HE analyzer:

Exist the Collins PLUS program. Bring up the DOS command prompt and run the batch file SETFRCZS. Follow the screen prompts:

Did you obtain a ZERO analyzer reading? If yes, proceed to "Did you obtain a SPAN reading?" If no, attach DVM to TP2 of HE Interface board.

Did you obtain a ZERO analyzer reading? If yes, the problem is digital (A/D, Multiplexer, etc.) If no, the problem is with the interface board or cabling to HE analyzer.

Did you obtain a SPAN reading? If yes, the FRC HE analyzer is functional. If no, attach DVM to TP2 of HE Interface board.

Did you obtain a SPAN reading? If yes, the problem is digital (A/D, Multiplexer, etc.) If no, was there flow through flow meter? If flow, the problem is wrong concentration of gas in the bell. If no, the problem is in the interface board or cabling to the HE analyzer.

If you suspect a problem with the standard DLCO analyzers:

Exit the Collins PLUS program. Bring up the DOS command prompt, run the batch file SETDLZS. Follow screen prompts:

Did you obtain a ZERO analyzer reading? If yes, proceed to "Did you obtain a SPAN reading?" If no, attach DVM to TP4 of HE Interface board and/or TP2 of the CO Interface board.

Did you obtain a ZERO analyzer reading? If yes, the problem is digital (A/D, Multiplexer, etc.). If no, the problem is with the interface board or cabling to analyzers.

Did you obtain a SPAN reading? If yes, DLCO analyzers are functional. If no, attach DVM to TP4 of HE Interface board and/or TP2 of the CO Interface.

Did you obtain a SPAN reading? If yes, the problem is digital (A/D, Multiplexer, etc.). If no, was there flow through the flowmeter? The problem is wrong concentration of gas in the spirometry bell, with the interface board, or in the cabling to analyzers.

If you suspect a problem with the 3G DL analyzer:

Exit the Collins PLUS program. Bring up the DOS command prompt, run the batch file SET3GDL. Follow screen prompts:

Did you obtain a ZERO analyzer reading? If yes, proceed to "Did you obtain a Span reading?" If no, check the flowmeter located in the 3G module. Is there flow indicated in the flowmeter? If no, the pump is possibly bad, there is an obstruction in the line, or a defective V4. If yes, did you obtain a ZERO analyzer rewading? If no, exit batch file and start again.

Did you obtain a SPAN reading? If yes, the 3G analyzer is functional. If no, was there flow through the flowmeter? There could be a concentration of gas in the bell, or a problem with the interface board or cabling to analyzers. Run Leak Check on the 3G circuit: 3GLKCHK .bat file.

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