Commissioning And Operation; Service And Repairs; Cleaning And Servicing; Disassembly And Exchange - Emerson AVENTICS PM1 Notice D'instruction

5 Assembly
Let the product acclimatize for several hours before commissioning, other-
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wise, water may condense in the housing.
Danger of injury if assembled under pressure or voltage!
Assembling when under pressure or electrical voltage can lead to injuries and
damage to the product or system components.
1. Make sure that the relevant system component is without pressure and
voltage before you assemble the product.
2. Protect the system against being restarted.
5.1 Assembling the pressure switch and connecting the
pneumatics
1. Make sure that the system is not under voltage or pressure.
2. Connect the pressure switch with the pressure system:
• Flange connection M5: M = 2.5
A
+1
• Connection G1/4: M = 12 Nm (see g Fig. 2)
A
5.2 Electrically connecting the pressure switch
Wire identification corresponds with the contact assignment of the following fig-
ure.
1
3
2
Fig. 5: Switching functions 0.2 -16 bar
The installation of electrical devices must be carried out in accordance with appli-
cable national regulations and performed or supervised by an electrical specialist
(in compliance with TRBS 1203 or equivalent).

6 Commissioning and operation

Danger of explosion!
There is a danger of ignition in explosive areas if the product is not commis-
sioned properly.
Observe the warnings under g 2.5. ATEX information on explosion protec-
u
tion!
Risk of injury due to uncontrolled actuator movements when the pneumat-
ics are switched on!
There is a danger of personal injury if the system is in an undefined state.
Put the system in a defined state before switching it on.
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System is operating under pressure!
Incorrect installation could damage the pressure switch or the system and
cause serious injury.
Before commissioning, check that all connections, ports and components
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have been correctly installed.
6.1 Commissioning the pressure switch
Proceed as follows to commission the pressure switch:
1. Check whether the pressure switch is assembled correctly (see g 5. Assembly
and g 2. Notes on safety, especially g 2.5. ATEX information on explosion
protection) and make sure that all pressure switch connections are properly
connected.
2. Secure the components to be switched to prevent unintentional responses,
and apply voltage.
3. Apply the compressed air to the system.
4. Check that the switch outputs are functioning properly.
AVENTICS™ PM1 | R412018626-BAL-001-AI | English
CAUTION
+0.5
Nm (see g Fig. 1)
1
2
Fig. 6: Switching functions -0.9 -1 bar
DANGER
CAUTION
CAUTION
6.2 Setting the switching point
2
Fig. 7: Setting the switching point
1 Adjustment screw
• Factory setting: pressure switch = 3 bar; vacuum switch = –0.4 bar
• The adjustment screw is self-holding.
The switching point is continuously adjustable, even during operation.
To check the switching point, an external pressure gauge must be used.
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To set the switching point to a higher pressure:
Turn the adjustment screw (1) to the right (+).
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To set the switching point to a lower pressure:
Turn the adjustment screw (1) to the left (–).
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3

7 Service and repairs

7.1 Cleaning and servicing

Danger of explosion due to electrostatic charge!
Cleaning with a dry cloth may cause the surface of the pressure switch to be-
come electrostatically charged. This can lead to an explosion in explosive ar-
eas.
Use only a water-moistened cloth to clean the pressure switch! Never use
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solvents or aggressive detergents.
Do not use high-pressure cleaners for cleaning.
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7.2 Maintenance
The pressure switch is maintenance-free.
Contact the AVENTICS service department in case of technical problems.
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8 Disassembly and exchange

Danger of explosion!
Disassembly and exchange when under pressure or voltage can lead to explo-
sions in explosive areas.
1. Make sure that the relevant system component is without pressure and
voltage before you assemble the product.
2. Protect the system against being restarted.
1. Make sure that the system is not under voltage or pressure.
2. Disconnect the electrical connection.
3. Loosen the mounting screws on the pressure switch.
4. Remove the pressure switch from the pressure system.
9 Disposal
Dispose of the product in accordance with the currently applicable regula-
u
tions in your country.
1
DANGER
CAUTION
10