HR-10 Series
HITROL CO., LTD. 7
Please turn off the power of the product for maintenance.
Please do not apply high impact to the product.
Maintenance
The major parts of HR-10 Series to be inspected are float and reed switch.
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. If there is scale caused by measurements, it shall be removed
for the smooth operation of the float. Reed switch can simply be inspected using a Digital
Multimeter as follow.
-
Select the buzzer of the Digital Multimeter and connect it to one of product’s terminal
blocks, E1/E2 or N.O/N.C and the COM terminal.
-
If the buzzer rings when the float reaches the upper/lower contact points, it works normally.
-
If the contact state is checked by resistance, the Digital Multimeter indicates 0Ω by moving
the float, it is normal to the N.C (Normal Close), and the N.O (Normal Open) indicates
infinite.
Precautions
for Removal
- Check the level and presence of measurements in the tank before removing it.
- Wear gloves when removing it, to prevent a burn.
- Disassemble work shall be done with the power off.
- Make sure that any O-ring or gasket is not damaged while opening or closing the cover of product.
Precautions
for Installation
- Use the same standard flange or screw.
- Make sure to insert washers between bolts and nuts to prevent loosening.
- Make sure to insert gaskets between flanges. (Select the gaskets in consideration of
temperature of content and pressure of vessel.)
- After the installation is complete and the cover of the product is assembled, power it on.
Float
316L
Float
316L
Float
PVC
Float
PTFE
