Safety Practices and Hazards
Agilent Electrothermal Temperature Controller ETC 60 User’s Guide
11
Color Coding
The various indicator lights appearing on the instrument and any associated
accessories have been color coded to represent the status of the instrument or
accessory:
A green light indicates the instrument is in normal standby condition.
A blue light indicates that operator intervention is required.
An orange light indicates a potential hazard.
A red light indicates danger or an emergency.