
5-13
5 Error Processing, Maintenance and Inspection
CJ-series High-speed Counter Units Operation Manual for NJ-series CPU Unit(W492)
5
-4 Main
ten
ance an
d In
spection
5
5-4-2 R
outine
Inspe
c
tions
z
Inspection Procedure
Check the items in the following table and correct any items that are not according to the criteria.
Item
Criteria
Equipment
Environmental
conditions
Ambient temperature
0
°
C to 55
°
C
Thermometer
Ambient humidity
10% to 90%
Hygrometer
Dust/dirt accumulation
None
---
Is the Unit exposed to any spray of
water, oil, or chemicals?
None
---
Is the Unit exposed to corrosive or
flammable gases?
None
Gas sensor
Is the Unit exposed to shock or
vibration?
None
Installation
Is the Unit installed securely?
No looseness
---
Are the external connectors
securely mounted?
No looseness
---
Is all external wiring securely con-
nected?
No looseness
---
Are the external connectors fully
inserted?
No looseness
---
Are the connecting cables undam-
aged?
No damage
---