Oldham OLCT 80 User Manual page 64

OLCT 80 linked to a central controller or PLC – analog mode
Figure 41: wiring to a central detection controller (analog mode).
Item Description
A. Analog output (4-20 mA).
B. Auxiliary input #1, 4-20 mA, 24 VDC.
C. Auxiliary input #2, 4-20 mA, 24 VDC.
Fault relay output. Dry contact. Interrupting capacity: 30 VDC - 250 VAC – 2A.
D.
Rel2 relay output. Dry contact. Interrupting capacity: 30 VDC - 250 VAC – 2A.
E.
Rel1 relay output. Dry contact. Interrupting capacity: 30 VDC - 250 VAC – 2A.
F.
G. Instrumentation-type shielded cable with 3 wires
H. 24 VDC power supply.
Note on 4-20 mA connection cable
The cable must be equipped with a braided shield to reduce the impact of
electrical noise and radiofrequencies. Examples of compatible cable types:
■
Non-ATEX zone: CNOMO FRN05 VC4V5-F.
■
ATEX zone: GEVELYON (U 1000RHC1).
■
ATEX zone: GVCSTV RH (U 1000).
■
ATEX zone: xx-xx-09/15- EG-SF or EG-FA or EG-PF (M87202-compatible U
300).
4 – Installation
58