Measures; Qualified Personnel - Siemens SITRANS DA400 Operating Instructions Manual

General safety notes

2.4 Measures

2.4 Measures
For the sake of safety, the following precautions must be observed:
Warning
"Intrinsically safe" protection type
"Intrinsically-safe" devices lose their certification as soon as they are operated on circuits
which do not correspond with the test certification valid in their country.
Protection type "limited energy" nL (zone 2)
Devices with "limited energy" may be connected and disconnected while in operation.
Protection type "non-sparking" nA (zone 2)
Devices with "non-sparking" protection may only be connected and disconnected when off
circuit.
Caution
Electrostatic Sensitive Devices (ESD)
This device contains electrostatic sensitive devices. Electrostatic sensitive devices may be
destroyed by voltages that are undetectable to a human. Voltages of this kind occur as soon
as a component or an assembly is touched by a person who is not grounded against static
electricity. The damage to a module as a result of overvoltage cannot usually be detected
immediately. It may only become apparent after a long period of operation.
2.5

Qualified Personnel

"Qualified personnel" means those who are familiar with the installation, mounting,
commissioning and operation of the product. They must have the following, appropriate
qualifications for their activities:
• Training or instruction/authorization in operating and maintaining devices and systems
• For explosion-proof devices: Training or instruction/authorization in carrying out work on
• Training and instruction in maintenance and use of adequate safety equipment according
• Should be trained in first aid.
2-2
according to the safety regulations for electrical circuits, high pressures and aggressive
as well as hazardous media.
electrical circuits for hazardous systems.
to safety regulations.
SITRANS DA400 with protection against explosion
Operating Instructions, 02/2006, A5E00684661-01