HM-95 Series
HITROL CO., LTD.
13
Maintenance
Do not insulate the housing and heat sink.
Regular inspection helps in using the product in the optimal condition. As such, it
is recommended to conduct annual inspection and maintenance.
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Cage
The cage is designed to endure high temperature and pressure, and its safety i
s confirmed with nondestructive and water-pressure tests. However, corrosion ca
n lead to leakage in a harsh working environment. As such, regular visual insp
ection and test are required.
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Housing
Check the sealing of the housing cover and wire inlet to prevent dust or rain f
rom penetrating. Also, replace the sealing if it is old or damaged.
Exposure to excessive heat or humidity may damage the wire inlet insulation. It
may lead to short circuit, so check the wiring and replace it if necessary in a
dvance.
If the terminal is not tightened, vibration may cause it to loosen.
Prepare a spare switch block so that the process can continue even if there is
a problem with the switch block.
The product can be removed from the vessel to check the contact of level swit
ch using liquid (e.g., water) and then reconfigure it.
For maintenance, check for the presence of the object to be measured
in the tank first.
Learn how to adjust the switch block before adjusting it, and contact
the headquarters or dealership for any replacement required.
If the temperature of object to be measured exceeds 350℃, an ex-proof product (HM-95-Ex
and HM-95V-Ex) is not applicable.
If the temperature of object to be measured exceeds 120℃, use a high-temperature product
(HM-95H, HM-95VH) and insulate the main unit and connection, as shown below.
