GEM 1242 User manual

GEMÜ 1242PTAZ
Mounting kit for pneumatic actuators
Assembly instructions
Quarter turn actuator
EN

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1 General information
1 General information
1.1 Description
The mounting kit is used for the construction of electrical position indicators and combi switchboxes of series 1235, 1236,
1242 and 4242. The position of the actuator is reliably electronically detected and evaluated through play-free and non-posit-
ive mounting. The mounting kit is suitable for the following borehole pattern in accordance with VDI/VDE 3845.
1.2 PTAZ NAMUR sizes
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
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
Distance piece
2 Assembly and installation
NOTICE
●Observe the data on the product labels, product documentation and the EC type examination certificate.
●Connect cable carefully, do not damage individual wires.
●Prepare the wire ends when connecting several cables or fine-wired cables.
●Always attach wire end ferrule stops using pinch tools 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 circuits: 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 installation of 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.

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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.
5
6
3. Tighten the operating bush 3 by turning it
clockwise.
4. Affix the O-ring 5 and the adapter 6.
2 Assembly and installation

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2 Assembly and installation
7
8
5. Attach the flange plate 76. 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
●Fit the adapter 3 with screws 4 to the actuator A.
2.4 Assembling and installing the electrical position indicator (quarter turn actuator)
6
7
8
1. Screw the electrical position indicator 6 onto the adapter 7.
2. Use the spanner flat 8 (WAF 27) of the travel sensor to tighten the electrical position indicator.
3. Turn the housing clockwise to align the pneumatic or electrical connections.
4. Initialize the product.

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Subject to alteration
07.2019 | 88658837
*88658837*