GymnaUniphy Phyaction V Service manual

		Service manual Phyaction V
1. Contents
1.	Contents .............................................................................................................................		1
2.	Preface ...............................................................................................................................		2
3.	Important remarks ..............................................................................................................		3
3.1	Safety aspects ................................................................................................................		3
3.2	Data registration..............................................................................................................		3
4.	Technical data ....................................................................................................................		5
4.1	General technical data....................................................................................................		5
4.2	Environmental conditions................................................................................................		5
4.3	Transport and storage ....................................................................................................		5
5.	Circuit description...............................................................................................................		6
5.1	Power supply ..................................................................................................................		6
5.2	Patient Current Routing ..................................................................................................		6
5.3	Vacuum...........................................................................................................................		6
5.3.1		Control Loop ............................................................................................................	6
5.3.2		Pulsed Vacuum........................................................................................................	6
5.3.3		End of Treatment.....................................................................................................	7
5.3.4		Water management .................................................................................................	7
6.	Safety inspection list ( yearly check-up )............................................................................		8
7.	Hardware labels..................................................................................................................		9
7.1	Upgrading the hardware code. .......................................................................................		9
8.	Replacement procedures .................................................................................................		10
8.1	Opening the unit............................................................................................................		10
8.2	Replacement of power supply PCB..............................................................................		11
8.3	Replacement of the Main PCB .....................................................................................		11
9.	Upgrades ..........................................................................................................................		12
9.1	Vacuum pump switches of after 2 minutes even when current is flowing ....................		12
10.	Spare parts list..................................................................................................................		13
11. Schematics and PCB layout.............................................................................................			13

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Service manual Phyaction V

2. Preface

The Phyaction V is a Uniphy “low noise” vacuum unit with following characteristics :

Vacuum unit with 2 independent channels.

2 or 4 poles

Electronic vacuum control

Continuous and pulse mode

The Phyaction V unit can be connected to the following Gymna electrotherapy units :

Phyaction C

Phyaction E

Phyaction I

As a member of the Uniphy family it is built according to the requirements of the MDD security standards. All functions of the unit are controlled by a microprocessor, ensuring a high degree of reliability and safety.

This service manual gives a complete and accurate technical picture of the Phyaction V.

In doing so, it will hopefully help you to reach your goal: to form a correct diagnosis and to solve the client’s problem as thoroughly as possible.

If you have any questions or if you need additional information about this manual or about the use of the unit, please do not hesitate to contact us.

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3. Important remarks

3.1 Safety aspects

To understand and practice all procedures described in this manual a good technical background is a must.

GymnaUniphy cannot be held responsible for any actions executed on the unit by unauthorised persons, or for executing any procedures not prescribed in this manual.

All information in this manual has a GymnaUniphy nv. copyright.

3.2 Data registration

The distributor must be able to provide the following data for each unit:

Instrument data: Part and serial number.

Gymna has the original configuration of each unit.

The Phyaction V has following critical parts:

Ref 324597 : Main PCB Phyaction V

Ref 138103 : Pump Vaco 200

Ref 324826 : Power supply SMPS Vaco 200

All these parts have a serial-or batchnumber that has to be filed in case of a configuration change :

Customer data: Name, full address and date of delivery.

Service activities: All service activities must be filed.

If any critical parts are changed, we also expect the distributor to file the new serial numbers of these part(s).

To file this data, a data registration document is available on next page.

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Data registration document

	Information
Distributor name			Distributor address
Customer name			Customer address
Instrument name:			Serial number:
Date of delivery:
	Service activities
Date:
Error complaint:
Service action
Critical spare parts exchange list
Critical part name		Old serial number		New serial number
Date:
Error complaint:
Service action
Critical spare parts exchange list
Critical part name		Old serial number		New serial number
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4. Technical data

This is a summary of the technical data as described in the user manual.

4.1 General technical data

Dimensions Phyaciton V (w x h x d)

Weight Phyaciton V

Weight including accessories

Mains voltage

Maximum power consumption

Safety class

Insulation

Fuses

Volume water reservoir

Working pressure continuous vacuum

Working pressure pulsation vacuum

Vacuum rhythm

267 x 95 x 270 mm

3,5 kg

4,6 kg

100 - 240 VAC, 50 - 60 Hz

30 VA

Class I (earthed socket required) Type BF (floating patient circuit) 2 x T2AL250V

180 ml

38 - 320 hPa

58 - 480 hPa

1,5/1,5 - 1,5/4,5 s (on/off time)

4.2	Environmental conditions
	 Temperature:	+10 °C to +40 °C
	 Relative humidity	30% to 75%
	 Atmospheric pressure	700 hPa to 1060 hPa
4.3	Transport and storage
	 Transport weight	6,5 kg
	 Storage temperature	-20 °C to +60 °C
	 Relative humidity	10% to 100%, including condensation
	 Atmospheric pressure	200 hPa to 1060 hPa
	 Transport classification	Single piece by mail

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5. Circuit description

5.1 Power supply

The device is mains powered. It sports an all-range off-line switched mode power supply , meaning it can be used all over the world without having to select a working voltage or frequency. But of course the the plug of the power cord has to fit into the local outlet type.

5.2 Patient Current Routing

The electrotherapy outputs of the main unit are connected to the vacuum unit, at the rear, and the electrodes are connected to the front of the vauum unit. As long as the vacuum is not used the traditional electrodes function as before, even when the vacuum unit is not switched on.

As soon as the vacuum is turned on the patient current is switched from the traditional electrodes to the connectors for the hoses at the other end of which the suction cups are. In the hoses is a wire that feeds the patient current to a metal plate inside the cup. Contact with the the skin of the patient is established by a moisturized sponge. The switchover always happens for channel A but the operator can add channel B by pressing a button that toggles the choice between traditional and vacuum electrodes.

5.3 Vacuum

When the vacuum control is turned up, air is pumped out to create the vacuum until the set level is reached. The hose connectors limit the air flow into each hose so one can put the vacuum electrodes one at a time in their place. When channel B is not used, its connectors should be plugged by connecting them to each other by a hose, otherwise the pump keeps running and deeper vacuum levels cannot be reached.

5.3.1 Control Loop

A pressure sensor measures the vacuum level and a control loop powers the pump if the set level is deeper or opens a valve to let air in when lower . In continuous mode this results in only the pump being run very lightly, making up up for the small air leakage between the cups and the skin and at the connectors.

5.3.2 Pulsed Vacuum

When the electrodes are in place the operator can pulsate the vacuum to mitigate the effect vacuum has on patients with a vulnerable skin. When pulsating, the vacuum is raised by 50% during 1.5 second and then returns for 1.5 to 4.5 seconds to the level set for continuous operation. As a result the pump will run during the 1.5 second period of deepened vacuum after which the valve will be opened until the base level is reached again.

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