HLV Series
HITROL CO., LTD. 9
The life span of key parts depends on user’s environment and can be used optimally through periodic
check. Therefore, regular inspection ensures optimal performance of product, so take regular inspection
and maintenance at least every year. In addition, check for the exterior of the product like visual
damage and remove the product to make sure that it rotates properly when the paddle is rotated by
hand. Measurements and foreign substances are attached to the paddle, which can cause poor
precision, and shall be removed regularly.
- Check the level and presence of measure object in the tank before removing it.
- Wear gloves when removing it, to prevent a burn.
- Disassemble work shall be done with the power off.
- If there is explosive gas atmosphere, do not open the cover.
- Unlock the lock key (Set screw) 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.
- The grounding has an external and an internal grounding. When connecting to an external ground,
the ground wire shall be 4㎟ (4mmSQ).
- The internal grounding wire shall be the same size as the power line, and the size of the internal
grounding terminal lug shall be 3.1㎟ (3.1mmSQ). If the power line is larger than 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 product
with equivalent Ex-proof certificate to connect it with the external line lead-in method.
- For non-use external wire inlet, use a closed plug that passes safety certificate above equivalent
performance with the product.
Turn off the power of the product for maintenance.
Make sure to insert a washer if the terminal lug is removed from the ground terminal
and then re-connected.(Loosening prevention)
Maintenance
Precautions
for
Removal
Precautions
for
Grounding
Precautions
for
Inserted
External
Wire
(Ex-proof)
