Omron NX-AD series User Manual page 218

9 Inspection and Maintenance
Tools Required for Inspections
Required Tools
• Phillips screwdriver
• Flat-blade screwdriver
• Voltage tester or digital voltmeter
• Industrial alcohol and pure cotton cloth
Tools Required Occasionally
• Oscilloscope
• Thermometer and hygrometer
9 - 4
NX-series Analog I/O Units User's Manual for Analog Input Units and Analog Output Units (W522)