AWT420 | UNIVERSAL 4-WIRE, DUAL-INPUT TRANSMITTER | INF/ANAINST/012-EN REV. A
9
Output parameters of EZLink sensor
Maximum open-circuit voltage
Maximum short-circuit current
Maximum output power
Maximum inductance
Maximum capacitance
The following table is the permitted combinations of Lo and Co:
Lo (mH)
Co (uF)
Table 1 Permitted combinations of Lo and Co
Specific conditions of safe use
1 The enclosure contains aluminum and is considered to
present a potential risk of ignition by impact or friction. Care
shall be taken into account during installation and use to
prevent impact or friction.
2 For areas subject to explosive gas and/or dust atmospheres
charge and become a source of ignition in applications with
painted surface is relatively free of surface contamination
such as dirt, dust, or oil. Guidance on protection against the
risk of ignition due to electrostatic discharge can be found in
be done in accordance with the manufacturer’s instructions
(see: Risk of electrostatic discharge).
3
may impinge on the enclosure or the window of the
enclosure.
4
5 Transient protection shall be provided that is set at a level
6
7 The EZLink wiring is intrinsically safe and must be installed
and separated from non-IS wiring in accordance with IEC/EN
8 Relay contacts must be limited to 3 A.
Electrical installation in hazardous areas
IECEx/ATEX gland entries
For hazardous area installations, suitable ATEX or IECEx cable
be used to seal the entry holes.
cULus installation
The use of Conduit for the non-I.S. external circuits, or
the NEC (NFPA 70).
Cable gland specification for hazardous area (Exe) applications
• M20 entries
•
•
•
•
•
Part numbers for hazardous area (Exe) glands
Part number
M16
Ethernet
M20 | /₂ in
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