Power-Genex SS2L Series, Руководство пользователя

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SS2L / SS2R 시리즈
www.powergenex.com
5
Precautions 1
Be sure to read before handling.
Operation
Warning
1. Do not operate the positioner outside the specified range as this may cause problems.
(Refer to the specifications.)
2. Design the system to include a safety circuit to avoid the risk of danger should the
positioner suffer failure.
3. Be sure that exterior lead-in wiring to the terminal box is based on the guidelines for
explosion-protection of manufactory electric equipment when being used as a flame proof,
explosion proof construction.
4. Do not remove terminal cover in a hazardous location while the power is on.
5. Covers for the terminal and body should be in place while operating.
6. When using as an intrinsically safe explosion-proof product, do not wire in a hazardous
location while the power is on.
Caution
1. Do not touch the actuator or valve's oscillating section when supply pressure has been
added, as this is dangerous.
2. Make sure fingers do not get caught when mounting and aligning the cam.
Cut off the pressure supply and always release the compressed air inside the positioner and
actuator before performing this work.
3. Always use with the body cover unit mounted.
Moreover, the positioner may not meet degrees of protection IP66 depending on the body cover
mounting conditions. In order to meet degrees of protection IP66, tighten threads using the
proper tightening torques (2.8 to 3.0 N·m).
4. Always flush the pipe's inside before piping to ensure foreign objects such as machining
chips do not enter the positioner.
5. The actuator opening may become unstable when using the booster relay.
6. Always use a ground connection to prevent noise from the input current and to prevent
damage because of static electricity.
7. Use the pressure reading on the supplied pressure gauge as an indication.
8. The supplied pressure gauge's needle will malfunction if the pressure supply to the
internal mechanism or positioner freezes. Ensure that the pressure gauge's internal parts
do not freeze if using the pressure gauge in an operating environment with an ambient
temperature of less than 0°C.
9. Electromagnetic compatibility (EMC)
The housing is made of metal in order to increase the electromagnetic compatibility in
case of high frequency radiation. Note that this protection can only become effective if
you connect the ground connection of the housing to grounded valves using a short,
sufficiently-thick electrical cable. The ground connection is also used for connection to
potential equalizing bars. Conductor cross-sections of up to 4mm2 can be connected. To
avoid device malfunctions, it should only be operated in a controlled electromagnetic
environment. This means that radio transmitting devices, such as cellular phones must
not be used in the direct vicinity.
For users
Caution
1. Assemble, operate and maintain the positioners after reading the operation manual tho-
roughly and understanding the content.