GEM 4242PTAZ User manual
GEMÜ 4242PTAZ
Mounting kit for pneumatic actuators
Assembly instructions
Quarter turn actuator
EN
further information
webcode: GW-4242PTAZ
www.gemu-group.com2 / 4GEMÜ 4242PTAZ
1 General information
1 General information
1.1 Description
The mounting kit is used for the mounting of electrical posi-
tion indicators and combi switchboxes of series 1235, 1236,
1242, 4241 and 4242. The position of the actuator is reliably
electronically detected and evaluated through play-free and
non-positive mounting. The mounting kit is suitable for the fol-
lowing borehole pattern in accordance with VDI/VDE 3845.
1.2 NAMUR sizes, quarter turn actuator, PTAZ
The following borehole patterns are available:
80 x 30 x 20
80 x 30 x 30
130 x 30 x 30
130 x 30 x 50
1.3 Contents of PTAZ mounting kit for quarter turn
actuator
The PTAZ mounting kit contains the following items:
Item
PTAZ adapter
PTAZ mounting kit
Flange plate
O-ring
Screws (4x)
Adapter (M16x1)
Operating bush
Compression spring
2 Assembly and installation
NOTICE
●Pay attention to the information on product labels, in
product documentation and EC type examination certific-
ate.
●Connect cable carefully, do not damage individual wires.
●When connecting multiwire or finewire cables, prepare
the wire ends.
●Always use suitable pinch tools for pinching wire end fer-
rules in order to achieve consistent quality.
●Tighten all clamping points, even the ones not being
used.
1. Observe the national regulations and provisions.
2. Observe the installer provisions.
3. Protect M12 plugs against electrostatic build-up.
4. Protect M12 plugs against damage.
5. Lay cables securely and protect them from damage.
6. Differential voltage for two intrinsically safe electric cir-
cuits: Maximum 30 V.
7. Connect open wire ends in a junction box with protection
class IP20 and higher or outside the EX area.
2.1 Preparations for assembly to the valve (quarter turn
actuator)
1. Move the actuator A into zero position (actuator vented).
1
2
A
2. Remove the screw 1 from the trigger cam 2.
2.2 Mounting kit assembly
Item Name Item Name
1 Spindle 7 Flange plate
2 Spring 8 Screws
3 Operating bush 9 Pressure disc*
4 Distance piece 10 O-ring*
5 O-ring 11 O-ring*
6 Adapter
* Included depending on version.
CAUTION
Pretensioned spring!
▶Damage to the device.
●Slowly release the tension in the spring.
CAUTION
Do not scratch the spindle!
▶A damaged spindle surface may cause failure of the
travel sensor.
1
4
1
2
3
1. Pull out the spindle
1.
2. Align the indentation of the distance
piece 4 to the spring and push it over
the spindle 1 using the spring 2 and fix
it in place using the operating bush 3.
www.gemu-group.com 3 / 4 GEMÜ 4242PTAZ
5
6
3. Tighten the operat-
ing bush 3 by turning
it clockwise.
4. Affix the O-ring 5 and the adapter 6.
7
8
5. Attach the flange
plate 7
6. Screw the flange plate on tight using
screws 8 (1 – 1,5 Nm).
- Push in the spindle until it pushes against the spring and
then slowly release the pressure on the spring.
2.3 Mounting kit assembly (quarter turn actuator)
3
4
A
4
55
1. Adjust the mounting bracket to the required borehole pat-
tern.
ðTo do this, loosen the side screws 5 and set the retain-
ing feet onto the thread of the actuator, and install it
using screws 4.
2. Secure the bracket 3 to the retaining feet as shown. In do-
ing so, the tap shaft must sit free of play in the shaft of the
actuator.
2.4 Assembling and installing the combi switchbox
(quarter turn actuator)
6
7
8
1. Screw the product 6 onto the adapter 7.
2. Use the spanner flat 8 (WAF 27) of the travel sensor to
tighten the product.
3. Turn the housing clockwise to align the pneumatic or elec-
trical connections.
4. Connect the product electrically.
5. Connect the product pneumatically.
6. Initialize the product.
2 Assembly and installation
GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG
Fritz-Müller-Straße 6-8, 74653 Ingelfingen-Criesbach, Germany
Tel. +49 (0)7940 123-0 · [email protected]
www.gemu-group.com
Subject to alteration
10.2023 | 88658839
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