9. Wiring
1) Please be careful not to overstrain the body.
2) Please use vinyl sheathed wire, cabtyre cable, etc. suitable for load.
3) Please firmly wire a terminal block by using a compression terminal for M3.
4) Please carry out wiring after checking the contact type in the mark of wiring diagram.
5) Please use waterproof sealing fitting in case of conduit type.
6) Please use waterproof cable gland in case of cable gland type.
7) You should use a ground wire with a thickness of 0.7sq or over.
10. Maintenance and Operation
1) The commercial pressure shall be below 75% of the max graduation.
2) Do not impose a pressure beyond the allowable limit.
3) Avoid sudden pressure surge or drop.
4) If there is a risk of pulsation or impact pressure, install overpressure protection device
like dampener or gauge protector.
5) Do not grease the operation parts in the pressure gauge.
6) The regular inspection shall be made once or twice in 6 months to check contact operation.
7) If the indication instrument makes a big error, remove it from the product for inspection.
It may have been caused by wear, corrosion, external shock, vibration, or shock of a part.
In this case, you must remove, adjust, or exchange the part.
8) Standard rated current is based on 3. 6) However, it may be different in case of having
a MICRO S/W built-in. Therefore, please use it with a tolerance in consideration of
inrush current etc. within the rated current marked on this product.
9) The contact resistance of micro switch increases little by little, as time passes.
Especially, in case of small load, contact resistance increases in a short period of time
because "SiO
2"
accompanied with contact operation is accumulated at the contact part
in the environment where "Si" is contained. Therefore, please carry out ventilation or
use it in the clean environment. In particular, in case of using it for inputting sequence
for control, a contact fault may occur for this reason. Therefore, please use bufferrelay
for AC 110/220V between contact and sequence.
10) Please open and close the cover surely after cutting off power, in case of carrying out
work in order to repair or check the pressure gauge.
