IM14186
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AJD: IM14186 - R0
Availability, design and specifications are subject to change without notice. All rights reserved.
INSTALLATION AND MAINTENANCE INSTRUCTIONS
GB
2-wire proportional valve series 605, intrinsically safe Ex ia according to EN60079-11
DESCRIPTION
The 2-wire series 605 proportional valve is a compact, elec-
tropneumatic pressure regulator which converts an electri-
cal signal into pneumatic pressure (E/P transducer). It is
particularly suited for precise pressure regulation due to its
integrated control loop with electronic pressure feedback
The electrical connection uses 2-wire technology. The valve
is intrinsically safe according to ATEX. The pressure regula-
tor is fitted with a piezo proportional pilot and a downstream
pressure and flow amplifier.
The proportional valve is operated with a correspondingly
associated electrical apparatus.
Its explosion protection corresponds to Ex ia IIC T4.
Ingress protection: IP65.
The valve is designed for use in zones 0,1 and 2 for gases
and vapours and zones 20, 21 and 22 for dusts.
EC type-examination certificate no.: IBExU07ATEX1014 X
Ex marking: q II 1G Ex ia IIC T4
q II 1D Ex iaD20 T135 °C
ASSEMBLY / CONNECTION
Pneumatic connection:
The pneumatic connection is threaded.
1 = Supply pressure
2 = Pressure outlet
3 = Exhaust (with integrated protection or threaded connec-
tion, according to version used).
Recommendations for pneumatic connection:
Tightness is to be ensured by using cylindrical screws with
matching flat seals or conical screws as well as a sealing
compound. Apply sealing compound sparingly. Do not use
Teflon sealing tape or hemp as they may get inside the valve
and damage it. To ensure maximum performance, the diam-
eter of the pneumatic lines and connections must be ad-
justed to the nominal diameter of the valve.
The supply pressure must always be less than the maxi-
mum inlet pressure (MAP) and must be 0.5 bar above the
maximum outlet pressure.
Use a sufficiently filtered air supply (50 µm, free of conden-
sates). Install filter as close as possible to the valve.
Only air or neutral gas may be used as fluid.
Electrical connection:
The valves are provided with a 4-pin connector. The connec-
tion is made with a 4-pin connector size 15 – CM6 (Pg7P).
The connector is included in the scope of delivery. To ensure
IP65 protection and provide for an adequate strain relief, use
a 2-wire cable diameter 4-6 mm.
Connections: 1 = + SETPOINT (4…20mA)
2 = - SETPOINT
3 and 4 not used.
Electrical connections must be made by qualified personnel
according to applicable explosion protection requirements.
Before any work is done, turn off the electrical power sup-
ply to remove power from all components. All connecting
terminals and the connector’s cable gland must be properly
tightened.
Do not remove the cover or the plug on the valve during
operation.
Analog setpoint:
The valve is supplied with a current setpoint of 4…20mA.
Factory settings:
The valves are factory set as follows:
Outlet pressure 0 bar at a setpoint of 4 mA.
Maximum outlet pressure at a setpoint of 20 mA.
Safety parameters:
Max. voltage: Ui = 30V
Max. current: Ii = 120mA
Max. power: Pi = 800mW
Max. inductance: Li = 0µH
Max. capacitance: Ci = 0µF
The supply unit’s category is required to be category “ia”
when using the component in zone 0.
Category “ib” is sufficient for all other zones.
Do not exceed maximum ambient temperatures.
MAINTENANCE
PULSTRONIC valves with piezo proportional control gener-
ally do not require any maintenance.
If problems arise during installation, maintenance or opera-
tion, please contact ASCO JOUCOMATIC or one of its of-
ficial representatives. The product complies with Directives
89/392/EEC, 89/336/EEC and 94/4/EC. A declaration of
conformity is available on request.
TECHNICAL CHARACTERISTICS
Ambient temperature: : -20°C bis +60°C
Fluid temperature: : -20°C bis +60°C
Degree of protection: : IP 65
Max. supply pressure: : 8 bar
Max. outlet pressure: : 6 bar
Setpoint: : 4…20mA
Valve types: 605 X 2 9 X X
605 7 2 9 X X Nominal diameter DN 4, 1/8”
605 X 2 9 0 X Tapped G (ISO 228/1), exhaust (3) protect-
ed
605 X 2 9 3 X Tapped G(ISO 228/1), with connectable ex-
haust (3)
605 X 2 9 4 X Tapped NPT, exhaust (3) protected
605 X 2 9 3 X Tapped NPT, with connectable exhaust (3)
605 X 2 9 X 2 Outlet pressure 2 bar
605 X 2 9 X 2 Outlet pressure 3 bar
605 X 2 9 X 2 Outlet pressure 4 bar
605 X 2 9 X 3 Outlet pressure 5 bar
605 X 2 9 X 6 Outlet pressure 6 bar
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