Bowa 900-901 Manual De Instrucciones página 4

Safety instructions:
Follow the operating instructions
Every operation on this unit requires a full knowledge and observation of these operating instructions.
The unit is only intended for the use described.
The pressure-reducing valve must be used only as described and must be operated from an instructed
person or from qualified staff only.
Maintenance
The unit must be given a thorough overhaul / service every 6 years. Maintenance of the unit must only
be performed by authorized persons. If the unit is stored for more than 6 years, it must be given a
general overhaul before putting into service.
The unit is tagged with a maintenance sticker. On this sticker the date for the next general overhaul is
indicated.
The unit is designed for a service life of 15 years from the date of commissioning.
The unit must be disinfected before returning for repair.
Please disinfect following repair.
Use only original components.
Do not use oil or grease fittings.
Liability for function and damage
Liability for the functioning of the unit is transferred in all cases to the owner or operator, if the date for
the general overhaul indicated on the maintenance sticker is not respected, if the unit is improperly
serviced or repaired by persons other than service personnel or if it is used in a way other than for the
intended purpose.
The responsibility for a continuous gas supply, for the use of the proper gas and the correct gas
dosage depending on application as well as the adjustment of the corresponding correct pressure is in
either case with the operator.
BOWA shall bear no liability for damage caused by non-observance of these instructions.
The terms of warranty and liability specified in the conditions of sale and delivery of BOWA shall not be
extended by these instructions.
Handling gases
When the device is used in enclosed rooms, care must be taken to ensure that the gas cannot flow out
in an uncontrolled manner. The rooms must be effectively ventilated to prevent the creation of a
choking, fire promoting or otherwise hazardous atmosphere according to the type of gas.
Where necessary, gas warning devices must be used or installed, which activate an alarm on the
creation of a hazardous atmosphere.
The operator must be acquainted with the physical characteristics of the relevant gases.
Purpose of application:
The pressure-reducing valve serves for the withdrawal of argon gas from a high pressure gas cylinder.
The cylinder pressure can be read from the high pressure gauge. This enables the user to have a
continuous view of the contents (gas quantity) of the gas cylinder.
The working pressure is factory pre-set to 3 bar and cannot be adjusted by the user without undue
manipulation. On the bottom outlet port is a plastic hose with a quick coupling to connect the
consumer. The second lateral outlet connector is sealed with at blanking screw.
BOWA-electronic GmbH & Co. KG
Tel. (+49) 7072-6002-0 Fax (+49) 7072-6002-33
2
Heinrich-Hertz-Str. 4-10 72810 Gomaringen/Germany
info@bowa.de www.bowa-medical.com
Technical data:
Classification : unit class to EU guideline 93/42 EEC Annex IX : Class IIb
Relevant standard : EN ISO 10524-1
Type of construction : single stage diaphragm pressure reducing valve (primary pressure
compensated)
UMDNS-Code : 13-323 (Universal Medical Device Nomenclature System)
Inlet pressure : max. 200bar (1bar = kPa x 100)
Outlet pressure : 3 bar (factory pre-set)
Medium : Argon Ar
Flowrate : max. 350 l/min Argon (for bottles with a residual pressure of 15 bar)
Cylinder connection : country and gas specific threaded connection (hand fastening)
Art. No. Type
900-901
DIN 477 no.6
900-906
900-902
DIN 477 no.10
900-907
900-903
CGA 580
900-908
900-904
BS 341 no.3
900-909
Outlet connection : Two G1/4" internal threads (1×lateral in use, 1×downwards sealed)
Operating and storage temperature: -20 to +60°C
Humidity : 10-100% relative humidity (for operation and storage)
: 600 – 1200 hPa (for operation and storage)
Ambient pressure
Weight : Approx. 0.75kg (depends on the version)
Dimensions : W×H×D = 110×50×72mm (pressure regulator only)
Bringing into service:
1. Remove all protecting caps from connectors. Keep these for possible transport or storage.
2. Check that all oxygen fittings are free from oil and grease, pay attention that hands are also free of
oil and grease.
3. Check the pressure-reducing valve for damages (gasket, pressure gauge).
4. Fix the pressure-reducing valve to the medical gas cylinder with the screw connection
(hand-fastening)
5. Connect the unit to the quick coupler at the end of the hose.
6. Connect the electronic pressure sensor to the device (if applicable).
7. Open the cylinder valve with the hand wheel slowly (use both hands) and check on the high
pressure gauge that the medical gas cylinder has sufficient pressure.
8. Check the equipment for gas leakages (e.g. with leakage spray).
Check whether the set working pressure remains stable. If this is not the case and the pressure
slowly but constantly increases, the pressure reducing valve must be immediately taken out of
service and repaired by the manufacturer or an appropriately authorized agent.
BOWA-electronic GmbH & Co. KG Heinrich-Hertz-Str. 4-10
Tel. (+49) 7072-6002-0 Fax (+49) 7072-6002-33
Gas connection threads
W21.8×1/14"RI - flat
W24.32×1/14"RI - flat
0.965-14NGO-RH-lNT - conical
G5/8"RA - conical
3
72810 Gomaringen/Germany
info@bowa.de www.bowa-medical.com