Safety Liquid Leak Sensor [Control Category 4 PLe SIL3] SQ4
Cautions For Use
- This product is a sensor for detecting leak of fluids.
- When this product is used with safety devices, construct the system such that the device itself.
- Before using this device, check whether the device performs properly with the functions and capabilities as per the design specifications.
- Avoid using this device in an explosive atmosphere because this product does not have an explosive-proof protective construction.
Installation
- There is the detection mount difference by directivity of a liquid leakage. When there are a direction from which a liquid leakage happens, and an inclination, please install the nose-of-cam side (opposite side of a cable) of a sensor towards a top.
- Use the mounting bracket MS-SQ4-□ (optional) which suits the liquid to detect.
- Periodical checking of operation is recommended with the liquids which are not dangerous (water, alcohol, etc.).
- The amount of detection may change with the conditions of the installation surface.
- Be sure to use the mounting bracket MS-SQ4-□ (optional) when installing this device to avoid human error, etc.
Reliable detection cannot be guaranteed when this sensor is used alone.
Maintenance
- Before conduct maintenance, be sure that the system is in safety state.
- When using chemical liquid, use proper protections such as groves, masks, goggles, helmets etc. When using protections, be sure to read manuals of them and use properly.
- Dispose or reinstall in different environment, flush with DI water.
Mounting
- Keep enough space for maintenance when mounting this product.
Leakage detection condition and variation factor
- Leak detection part of this product properly detects the leakage in the following condition.
1. |
Detection range: Area except backward of this product (liquid must enter to the detection range) |
2. |
Material of installation surface: Hard vinyl chloride or Stainless steel |
3. |
Surface condition for installation: Glossy surface (surface roughness: corresponding 0.4 μmRa) and clean surface. |
4. |
Installation surface angle: Horizontal |
- This product may not detect properly liquid in following element.
1. |
Liquid kind, consistency (surface tension) and air bubble incorporation. |
2. |
Material, roughness, angle, dirtiness and liquid absorption of surface of installed surface of sensor. |
3. |
Wrong selection of dedicated mounting bracket. |
- Check the detecting liquid and the installation condition before use.
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