CODEL
OPS. 141
9
Issue : A
Revision : 1
Date : 14/06/18
Doc i/d :
0118/6
050028
•
Contact Outputs :
Any 2-core cable capable of supplying the
power to the warning device/relay etc. (1A @ 30V DC, 0.3A @
120V AC, max. power resistive load 30W).
•
AC Power :
Any suitable 3-core power cable capable of carrying
50VA.
•
Analogue Inputs :
Any suitable 2-core cable. Maximum length
depends upon keeping the load within the specification of the
measurement transducer.
2.12. Plant Status Input
Two terminals (34 & 17) are available within the processor to receive a plant
status contact input (optional). This facility is to prevent the rolling averages
being diluted by measurements made during periods where the plant is shut
down.
In normal operation (plant operating) these terminals should be left open circuit,
if the terminals are shorted together, the averaging stacks will not be updated.
!
For normal operation, terminals 34 & 17 must not be linked
together, if this facility is not to be used.
2.13. Connection Schedule
The overall connection schedule is shown in figure 6.
Cable glands are available to accept the cables - remove the blanking plugs
before threading the cable through.
!
Ensure that the transmitter and receiver are connected to the
correct terminals otherwise damage may result.
When initialised, the 'DATA VALID' relay is automatically
switched to 'Normally Closed' to accept valid data.
