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Precautions
- Check the level and presence of measure object in the tank before removing it.
- Wear gloves when removing it, to prevent a burn.
for
- Disassemble work shall be done with the power off.
Removal
- If there is an atmosphere of explosive gas, do not open the cover of the product.
- Unlock the lock key before removing the cover. (Ex-proof)
- Make sure that any O-ring or gasket is not damaged while opening or closing the cover
of product.
Precautions
- The grounding has an external and an internal grounding. When connecting to an external
ground, the ground wire shall be 4㎟ (4mmSQ).
for
- The internal grounding wire shall be the same size as the power line, and the size of the
Grounding
internal grounding terminal lug shall be 3.1㎟ (3.1mmSQ). If the power line is larger than
(Ex-proof)
3.1㎟, connect the ground wire without terminal lug.
- Use the cable gland connection or metal pipe line lead-in on the wire inlet, and use a
Precautions
product with equivalent Ex-proof certificate to connect it with the external line lead-in
for Inserted
method.
External Wire
- For non-use external wire inlet, use a closed plug that passes safety certificate above
(Ex-proof)
equivalent performance with the product.
Safety and
■ Precautions for Use
- Make sure to connect the product and vessel using required tools for sure.
Environment
- Keep the lock key safe and make sure that it is locked.
- Do not apply high impact to the product.
■ Disposal of Product
- Make sure to separate the amplifier and main unit from housing before disposing the
products.
- No part (ex. Mercury switch) has influence on the environment, so no special
attention is required.
Make sure to insert a washer if the terminal lug is removed from ground
terminal and then re- connected. (Loosening prevention)
HITROL CO., LTD.
HM-12(10) Series
9
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