Liquid Controls SP2200 - Manual (Page 7)

5
CONNECTING AC / DC POWER
NOTE: Connect power only after other connections are finished. Do not touch the live AC power terminals! The unit has
been designed with an isolated AC input. Thus, polarity is not a concern for the AC input. The chassis is plastic, therefore
earth ground is not used. For D.C. operation, connect + 12V to pin 7 and - D.C. to pin 8.
CONNECTING SENSOR INPUTS
These diagrams show how to hook typical input sensors to the unit. The unit supplies an unregulated 12 Volt (50mA)
output to power these sensors (Pin 7).
A valid pulse is one which makes a transition from the off-state (0 to 1V) to the on-state (4 to 30V): a positive going edge.
The input impedance is 10K Ohms to ground. The unit can be programmed from the front panel for slow switch closure
inputs up to 40Hz (select "Lo CPS"), or solid state switches (select "hi CPS") up to 9.99KHz. No rear terminal jumpers are
required. Use PNP (sourcing) type pulsers.
D08N
1 COMMON 2 N.O. (N.C./NPN) 3 COMMON 4 N.O. (N.C./NPN) 5 A INPUT 6 B INPUT 7 12 V OUTPUT/ + DC INPUT 8 - DC (GROUND) 9 RESET INPUT 10 NOT USED 11 AC INPUT 12 AC INPUT
D12P
COUNT
POWER
GROUND
COUNT
GROUND
POWER
A
RELAYS
B
*
* PULLUP RESISTANCE
4.7K TYPICAL
GND
+12V
STRIP CHART
RECORDER
TURBINE FLOWMETER
PULSE OUTPUT
PULSE OUTPUT
-
+ 1- COMMON
2- N.O.(N.C./NPN)
3- COMMON
4- N.O.(N.C./NPN)
5- A INPUT
6- B INPUT
7- 12VDC OUT/+DC IN
8- -DC (GROUND)
9- RESET INPUT
10- NOT USED
11- A.C. INPUT
12- A.C. INPUT
RELA
YS
A
B
13- V+
14- I SINK
ANALOG OUTPUT
ON
CAL.
0-20mA
COUNT
SET
OFF
RUN
4-20mA
RATE
RUN 1 2 3 4
ON
SWITCH
TURBINE FLOWMETER
TYPICAL SENSOR HOOKUP
TYPICAL FLOW SENSOR HOOKUP