www.gemu-group.com2 / 4GEMÜ 1242PTAZ
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).
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. 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.
