3
BASIC SAFETY INSTRUCTIONS
These safety instructions do not take into account any unforeseen
circumstances and events which occur during installation, operation
and maintenance. The operator is responsible for observing the
location-specific safety regulations, also with reference to personnel.
Risk of injury from high pressure.
▶ Before working on the device or system, switch off the pressure
and vent or empty the lines.
Danger of burns and risk of fire.
Following an extended duty cycle or as a result of a hot medium,
the surface of the device may become hot.
▶ Only touch the device when wearing protective gloves.
▶ Keep the device away from highly flammable substances and
media.
Risk of crushing by mechanically powered parts.
▶ Installation work on the swivel plate, diaphragm and valve body
must only be performed while electrically isolated.
▶ For devices with SAFEPOS energy-packs: Ensure that the
SAFEPOS energy-pack is fully discharged. Wait until the
LED ring is no longer lit and ensure that the LED status is not
in "LED off"
mode.
▶ Do not reach into the openings of the valve body.
Risk of uncontrolled process in the event of a power failure.
For devices without the optional SAFEPOS energy-pack, the valve
will not stop in a defined position in the event of a power failure.
6
▶ If the position of the valve has a bearing on safety concerns
in the event of a power failure: Only use devices that have
a SAFEPOS energy-pack (optional energy pack).
▶ Select a valve position that is safe in respect of the process
using the DIP switch.
Danger due to loud noises.
▶ Depending on the usage conditions, the device may generate
loud noises. Detailed information on the probability of loud
noises is available from the respective sales department.
▶ Wear hearing protection when in the vicinity of the device.
Discharge of medium if packing gland worn
▶ Relief bore must be regularly inspected for any medium
leakages.
▶ If medium is leaking from the relief bore, the packing gland
must be replaced (see chapter "Maintenance").
▶ If the medium is hazardous, secure the area around the leakage
to prevent risks.
General hazardous situations.
To prevent injuries, observe the following:
▶ In potentially explosive environments the device must only
be used in accordance with the specifications on the sepa-
rate type label.
▶ The additional information and safety instructions relating
to potentially explosive atmospheres enclosed with the device
or the separate operating instructions relating to potentially
explosive atmospheres must be heeded when using the device.
▶ In potentially explosive atmospheres, only use devices with
a separate type label for use in such atmospheres.
▶ Feed only those media listed in chapter "6 Technical data" into
the medium ports.
English
Type 3320, 3321
Basic safety instructions