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3.2.2 LED conditions
Function
CLOSED
Valve in OPEN posi-
tion
Valve in CLOSED po-
sition
Programming mode
OPEN / CLOSED flash altern-
LED conditions
lit (on)
~
irrelevant
3.3 Description
The GEMÜ 1242 electrical position indicator is suitable for in-
stallation on pneumatically operated linear actuators. The po-
sition of the valve spindle is reliably electronically detected
and evaluated using play-free and non-positive mounting. In-
telligent microprocessor-controlled functions facilitate com-
missioning and support during operation. The current position
of the valve is displayed via high-visibility LEDs and fed back
via electrical signals. The GEMÜ 1242 has been specially de-
signed for valves with a stroke of 2 to 46 mm.
3.4 Function
The GEMÜ 1242 electrical position indicator shows the posi-
tion of the valve. When the valve is opened, the spindle in the
electrical position indicator moves upwards and indicates that
the valve is OPEN using the high visibility LEDs and electrical
signals. When the valve is closed, the spring in the mounting
kit pushes the spindle in the electrical position indicator
downwards and indicates that the valve is CLOSED using the
high visibility LEDs and electrical signals.
3.5 Product label
Device version
Design in accordance with order data
Item number
Traceability number Serial number
The manufacturing month is coded under the traceability
number and can be requested from GEMÜ. The product was
manufactured in Germany.
www.gemu-group.com
ERROR
OPEN
High vis-
ibility
LED
flashes
ately
altern-
ately
flashes
off
Device-specific data
Year of manufacture
4 GEMÜ CONEXO
Order variant
In the corresponding design with CONEXO, this product has
an RFID chip (1) for electronic identification purposes. The po-
sition of the RFID chip can be seen below. The CONEXO pen
helps read out information stored in the RFID chips. The CON-
EXO app or CONEXO portal is required to view this informa-
tion.
Installing the RFID chip (1)
Size 1, 50 mm
For further information please read the operating instructions
for CONEXO products or the CONEXO datasheet.
Products such as the CONEXO app, the CONEXO portal and
the CONEXO pen are not included in the scope of delivery and
need to be ordered separately.
5 Correct use
Danger of explosion
▶ Danger of death or severe injury.
●
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 1242 is designed to be fitted to a GEMÜ valve in or-
der to detect the position of linear actuators optically and
electrically. The product has a microprocessor controlled in-
telligent position sensor as well as an analogue travel sensor
system (potentiometer) and is connected in a force-locking
way with the actuator spindle by means of a mounting kit
7 / 41
Size 2, 75 mm
1
DANGER
Only use the product in potentially ex-
plosive zones confirmed in the declara-
tion of conformity.
WARNING
5 Correct use
1
GEMÜ 1242
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