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17. MAINTENANCE AND INSPECTION
17.1 Daily Inspection
17.1 Daily Inspection
Daily inspection items
For the model names of the protection sheet or the replacement procedure, refer to the following.
8.4 Protective Sheet
17.2 Periodic Inspection
Yearly or half-yearly inspection items
The following inspection should also be performed when equipment has been moved or modified or the wiring
changed.
No. Inspection Item Inspection Method Criterion Action
1 Installation status of GOT
Check for loose
mounting screws.
Securely mounted
Retighten screws within the specified torque
range.
2
Connection
status
Loose terminal screws
Retighten screws with
screwdriver.
Not loose Retighten terminal screws.
Proximate solderless
terminals
Visual check Proper intervals Correct.
Loose connectors Visual check Not loose Retighten connector fixing screws.
3
Usage
status
Dirt on protection sheet Visual check Not outstanding Replace with new one.
Foreign material
attachment
Visual check No foreign matter sticking Remove, clean.
No. Inspection Item Inspection Method Criterion Action
1
Surrounding
environment
Ambient
temperature
Make measurement with thermometer or
hygrometer.
Measure corrosive gas.
Display section
0 to 50
For use in control panel, temperature
inside control panel is ambient
temperature.
Other portions
0 to 55
Ambient
humidity
10 to 90%RH
Atmosphere No corrosive gas
2 Power supply voltage check
24VDC Measure voltage across
terminals.
20.4 to 26.4VDC Change supply power.
3
Mounting
status
Looseness Move module. Should be mounted firmly. Retighten screws.
Foreign
material
attachment
Visual check No foreign matter sticking Remove, clean.
4
Connection
status
Loose
terminal
screws
Retighten screws with screwdriver. Not loose Retighten terminal screws.
Proximate
solderless
terminals
Visual check Proper intervals Correct.
Loose
connectors
Visual check Not loose Retighten connector fixing screws.
5 Battery
Check GOT internal battery voltage
status in [Time Setting & Display] of the
Utility.
(
12.1.1 Time setting and display
functions)
No alarm displayed
Replace with new battery when the
current battery has reached the
specified life span, even if battery
voltage is not displayed.