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Ex ZS 80-3G/D
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Montage- und Anschlussanleitung / Seilzug-Notschalter
Mounting and wiring instructions / Emergency pull-wire switch
Instructions de montage et de câblage / Interrupteurs d'urgence à câble
Istruzioni di montaggio e collegamento / Interruttori d'emergenza a fune
Instruções de montagem e instalação / Chaves de emergência acionadas por cabo
Инструкция по монтажу и подключению / Аварийные тросовые выключатели
English
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DANGER
Live parts. Explosive atmosphere. Electric shock
hazard! Risk of burns! Ignoring this message will
lead to serious injuries or death. Connecting and
disconnecting only by qualified and authorised
personnel. Connecting and disconnecting only in
non-explosive environment.
Before mounting the pull-wire, the red PVC sheath must be removed
from the the pull-wire in the clamping range of the pull-wire! After fit-
ting the wire, pull strongly on it several times, as the pull-wire and the
wire thimble will deform. Subsequently, retense the wire using the DU-
PLEX wire clamp, eye-bolt or tensioner.
Application and Operation
- Use device only within the permitted electrical load limits (see
technical data).
- For short-circuit protection use fuse size 6 A (gG/gN).
- Use device only within the permitted ambient temperature range (see
product label and technical data)
Cleaning
- Use a damp cloth to clean devices in explosive areas. This prevents
electrostatic charge.
- In case of damp cleaning: Use water or mild, non-scratching,
non-chafing cleaners.
- Do not use aggressive cleaners or solvents.
Maintenance / Repair / Service
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DANGER
Live parts. Explosive atmosphere. Electric shock
hazard! Explosion hazard! Risk of burns! Ignoring
this message will lead to serious injuries or
death. Do not repair defective or damaged devic-
es. Replace them. Do not rebuild or modify the
device in any way.
With careful mounting as described above, only minor maintenance is
necessary. We recommend a routine maintenance as follows:
1. Check pull-wire function.
2. Remove all dirt or particles.
3. Lubricate cam and roller shafts.
4. Check sealing of the cable or conduit connections.
Disposal
- Observe national, local and legal regulations concerning disposal.
- Recycle each material separately.
Mounting and set-up
In order to function correctly, the Ex ZS 80-3G/D pull wire switch
must be set up in the middle position with a pretensioned pull wire.
In this middle position the pointer position should correspond to
Fig. 1. In the middle position with a pretensioned pull wire, the NC
contacts, e.g. 11-12, are closed and the NO contacts, e.g. 23-24, are
open. The switch can only be released in this middle, pretensioned
position.
Fig. 1
Fig. 2
Switching function
When the wire is pulled, or if the wire breaks, the NC contacts, e.g.
11-12, are opened and the NO contacts, e.g. 23-24, are closed and
then locked in this position. The switch can only be released using
the blue release lever.
Notices
The electrical connection may only be carried out by authorised per-
sonnel. Any mounting position is possible. The cable must be connect-
ed inside an enclosure which meets the requirements of a degree of
protection per EN 60079-0: section 1, if the connection carried out
within a hazardous area. Reconstruction and alterations at the switch -
which might affect the explosion protection - are not allowed. Further-
more, EN 60079-14 have to be applied for the installation of electrical
equipment in explosive areas. Moreover, the ATEX test certificate and
the enclosed special conditions have to be observed. A complete safety
system normally covers sensors, monitoring modules, indicator
switches and concepts for safe disconnection. For the integration of
the safety switch in to the entire system, the control category deter-
mined in the risk assessment must be strictly observed and respected.
Therefore, a validation according to DIN EN ISO 13849-2 or DIN EN
62061 is required. Furthermore, the Performance Level according to
DIN EN ISO 13849-1 and SIL CL Level according to DIN EN 62061 can
be lower than the single level because of the combination of several
safety components and other safety-related devices, e.g. by serial
connection of sensors. The responsibility taken by the manufacturer of
a plant or machine implies to secure the correct general function.
Moreover, steute does not assume any liability for recommendations
made or implied by this description. Subject to technical modifications.
From this description new claims for guaran tee, warranty or liability
cannot be derived beyond the general terms and conditions of delivery.
I Release
0 Latching
Middle position
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