Correct Use - GEM 4242 Operating Instructions Manual

5 Correct use

Danger of explosion!
▶ Risk of severe injury or death
Only versions that have been approved
●
according to their technical data may
be used in potentially explosive envir-
onments.
Improper use of the product!
▶ Risk of severe injury or death
▶ Manufacturer liability and guarantee will be void
Only use the product in accordance with the operating
●
conditions specified in the contract documentation and in
this document.
The GEMÜ 4242 with integrated pilot valve is designed for
pneumatic actuators. The product has a microprocessor-con-
trolled intelligent position sensor as well as an analogue
travel sensor system (potentiometer). It is non-positively con-
nected with the actuator spindle by means of a mounting kit
(spring, operating bush). The valve end positions and the in-
tegrated travel sensor can be controlled via the electrical con-
nections. The pneumatic valve actuator is directly activated
by an integrated 3/2-way pilot valve. The housing cover must
not be removed.
5.1 Product without special function X
The product is not intended for use in potentially explosive
areas.
5.2 Product with special function X
The product with ordering option Special version X is intended
for use in potentially explosive areas of zone 2 with gases,
mists or vapours and zone 22 with combustible dusts in ac-
cordance with EU directive 2014/34/EU (ATEX) and IECEx.
The product has the following explosion protection marking:
ATEX
Gas: II 3G Ex ec nC IIC T4 Gc X
Dust: II 3D Ex tc IIIC T100°C Dc X
The product has been developed in compliance with the fol-
lowing harmonised standards:
- EN IEC 60079-0:2018
- EN IEC 60079-7:2015/A1:2018
- EN 60079-31:2014
Use of the product is permissible in the following ambient
temperature ranges: 0 to +60 °C
For use in potentially explosive areas, the following
conditions or operation limits must be observed:
Index X is applied to the explosion protection marking.
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DANGER
WARNING
The following special conditions must be complied with:
1. Connection cables and connectors must be protected
from damage.
2. Layers of dust > 5 mm must be removed.
3. Warning label "Danger from electrostatic build-up".
4. Warning label "Do not disconnect when live".
The housing must be installed protected from mechanical in-
fluences.
RFID chips must not be read out in potentially explosive areas.
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5 Correct use
GEMÜ 4242