Badger Meter 4050 Flow Computers - Manual (Page 17)

4050 Multi-Input Linear Flow Computer
15
12. MANIFOLD SYSTEM INSTALLATION EXAMPLE
(S) Slot –(V) Valve (R ) Relay (P) Pins
Truth Table for Relays
Relays are dry outputs with open (o) or closed (c) states, which can be used to switch valves etc.
CONDITION RELAY 1 RELAY 2 RELAY 3
No power to unit O O O
Power On No Flow C C O
Low Flow C C O
1 to 2 trip point (Flow at 2) O C O
2 to 3 trip point (Flow at 3) O O O
3 to 2 trip point O C O
2 to 1 trip point C C O
RTD
S1/P 11,12,13
S 1/ P7,8,9
S 1/P 3,4,5
Relay2
S3/ P 3,4
Relay 1
S3/ Pins 1,2
S 2
P 5,7,9,11
Flow
Flow
090804