WIKA WUC-16 - Handbuch (Seite 44)

11384850.07 GB/D 06/2014
44 WIKA Operating instructions / Betriebsanleitung, WUC-1x
Hazardous (classified) location Non-Hazardous location
Non-Incendive installation
Class I, Division 2, Groups A, B, C and D
Class I, Zone 2, Groups IIC
(Note 3)
Series WUC-1X U+/S+
Non-Incendive transmitter U-/S-
S+
Control equipment
(Note 4), (Note5)
red
black
brown
2-wire system
wire coding color
supply + U+/S+ red
supply - U-/S- black
2-wire system
wire coding color
supply + U+ red
supply - U-/S- black
signal + S+ brown
Non-Incendive parameters:
V
max
= DC 10 ... 30 V, I
max
= 30 mA (Note 2)
Ci = 11 nF (+0.3 nF/m with cable), Li = 10 µH (+2 µH/m with cable)
Notes
1. The non-incendive field wiring concept allows the interconnection of two devices with non-incendive parameters not
specifically examined in combination as a system when: Uo or Voc ≤ V
max
, Ca or Co ≥ Ci + C
cable
, La or Lo ≥ Li + L
cable,
Po ≤ Pi
2. For this current controlled circuit, the parameter I
max
is not required to be aligned with the parameter I
sc
or I
t
of
non-incendive field wiring apparatus.
3. Installation shall be in accordance with the National Electrical Code ® (ANSI/NFPA70) Sections 504 and 505.
4. The configuration of Control Equipment must be under non-incendive field wiring concept and FM Approved.
5. Control Equipment manufacturer´s installation drawing must be followed when installing this equipment.
6. No revision to this drawing without prior approval by FM.
14. Control drawing (FM) D
11374595.01