IM-P703-05
CTLS Issue 3
EP6 Positioner
EP6 Positioner
Quick Start Guide
IM-P703-05
CTLS Issue 3
© Copyright 2021
Side view shown
for clarity
This guide covers only a brief description of installation and maintenance for Spiratrol and QL valves.
For detailed installation, operations, maintenance including safety, precautions, and warnings, please
refer to our official instruction manual at www.spiraxsarco.com (IM-P703-02 or IM-P703-04 (ATEX)).
EP6 is Electro-Pneumatic Positioner that accurately controls valve stroke in response to an input signal of 4-20mA from the controller.
Explosion Proof Warning
(Only for explosion proof type positioners)
Please ensure the unit is being used and installed in conformity with local, regional, and national explosion proof
regulations.
1. Explosion proof type of cables and gaskets should be used, when explosion gases are present at the installation
site. Wiring should be carried out in accordance with IEC 60364 or equivalent.
2. Power should be turned off completely when opening product's cover. When opening the cover, ensure that there
is no power remaining in any electrical parts nearby.
3. Flameproof enclosure type positioner has 2 ports for power connection. Explosion proof type wires and packing
should be used. Blind plug is required when any port is not being used.
4. Ring terminal with surface area of more than 1.25 mm
2
with M4 spring washer should be used to connect the power.
5. For external ground terminal, ring terminal with surface area of more than 5.5 mm2 should be used.
6. There is risk of explosion due to static electricity charge. Static electricity charge may develop when cleaning the
product with a dry cloth. It is imperative to avoid static electricity charge in the hazardous environment. If cleaning
the surface of the product is needed, must use a damp cloth.
7.
To meet explosion-proof marking information and ingress protection of IP66, use certified Ex-cable glands and
Ex-plugs.
8. If you need additional information about the dimensions of the flameproof joints, contact Spirax Sarco directly.
9. The electric valve positioner must be connected in series with a fuse with a rated current not higher than 62 mA, a
breaking capacity above 1500A, and a rated voltage not less than the working voltage of the product.
10. The cable entry must be equipped with a cable entry device, which must be an Ex cable entry device approved
by the explosion-proof inspection agency (For NEPSI - according to the requirements of GB3836.1-2010 and
GB3836.2-2010) and meet the requirements of the product explosion-proof mark, and the installation of the cable
entry device, user must follow its instructions.
1.1 Linear positioner
1. Installation
1.1.1
Assemble the feedback pin locator and feedback pin to the actuator coupling firmly
Mounting
positions
Pin locator
marking
Valve
stroke
MTG
kit
Feedback pin
locator direction
Central
N/A
20
EY1
30
50
EY2
70
Left hand
side
D
20
UY3
A
30
B
50
UY1
E
70
