Table of Contents
Advertisement
General safety notes
2.4 Measures
2.4
Measures
For the sake of safety, the following precautions must be observed:
Type of protection "pressure-proof encapsulation"
Devices with "pressure-proof encapsulation" protection may only be opened when off
circuit.
"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. The "ia" protection
level of the device is lowered to the "ib" protection level if intrinsically safe circuits with the
"ib" protection level are connected.
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.
Exceptions:
Connection lines with unlimited energy as well as internal connectors may be connected or
disconnected under voltage only in the following cases:
• During installation
• During maintenance
• During repairs
Exposure to aggressive and hazardous media
The device can be operated both at high pressure and with aggressive and hazardous
media. Therefore, improper use of this device may lead to serious injury and or
considerable damage to property. Above all, it must be noted when the device was in use
and is to be exchanged.
CAUTION
For versions 6DR5a*b-*Gc**-****, where a = 0, 2, 5, 6; b = 0, 1; c = G, N, M, P, Q, the
following is applicable:
The device must be protected against power surges of over one joule.
For versions 6DR5a*b-*Gc**-****, where a = 0, 2, 5, 6; b = 0; c = G, N, M, P, Q, the
following is applicable:
The maximum torque on the thread of the cable gland should not exceed 67 Nm.
14
WARNING
WARNING
SIPART PS2 with PROFIBUS communication
Operating Instructions, 09/2007, A5E00127926-07
Advertisement
Table of Contents
