Electro-Pneumatic Positioner SP 520 Series
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Ver 1.20
3
SHIN HWA Eng.Co.,Ltd.
1. Introduction
1-1 General Information for users
- For the protection and safety of the operator, the product, and the system in which this
products is installed, the safety instructions mentioned in this manual must be observed.
Safety cannot be guaranteed if the safety instructions in this manual are not properly
followed.
Installation commissioning and maintenance of the products should be performed by trained
specialist personnel who have been authorized accordingly.
The manual should be provided to the end-user.
SP520 Series hardware can be upgraded without any prior notice.
For additional information or if there occur problems that are not stimulated on these manual,
please contact to Shin Hwa Eng. Co., Ltd. immediately.
1-2 Warranty
Manufacturer will not take responsible for the personal and physical damage caused by
user's negligence and products modifying or repairing randomly.
If any alternations or modifications are required, please contact to Shin Hwa Eng. Co., Ltd.
Quality warranty is valid during the warranty period stimulated in products warranty and shall
be free cost during this period only.
Even though it is within quality warranty period, following conditions must be paid.
- In case that customer shall maintain or repair products improper randomly.
- In case of happening problems caused by improper movement and storage or dealing
which has exceeded over design condition.
- In case that products shall be used over the specification range.
- In case that problems shall be caused by improper installation.
- In case that it happens on fires, earthquakes, storms, floods, thunder, lightening
other natural disasters, riot, war, radiation exposure, force of majeure situation.
1-3 Safety on Installation
When installing or replacing positioner equipped with actuator, following safety is required.
- Stop completely valve, actuator and relative surrounding input signal, air pressure.
- Separate by-pass valve or control valve so that overall system may not shut down.
- Make sure that there is no remaining air pressure in actuator.
- In case of enclosures covered with non-conductive material, brush discharge must be
avoided.
1-4 Safety on pipe connection
Be care to select facility so that moisture, oil, other materials may not be mixed in pipe of air
