Liquid Controls SP2850 (MS-649) - Manual (Page 9)

Sponsler, Inc. Model SP2850-TC with MS649 Page 9 DOC#: MN-2850
TYPICAL WIRING: SP714 & SP717
ANALOG OUTPUTS
The output on external pin 3 is a 4-20mA, 0-5 VDC, or 0-10 VDC output corresponding to the selected rate
readings. When the output is 4-20mA, a sinking driver generates a linear current across the recorder, PLC,
computer or external meter. When the output is a voltage, the unit generates a positive voltage with respect to
ground (pin 12). In the program set-up mode the user is prompted to `SET LOW’ (4mA rate or 0V rate) and ‘SET
HIGH’ (20mA rate or 5V; 10V rate).
The unit can supply the 24 VDC to power the current loop. Connect Pin 15 to Pin 13. Pin 16 is now +24 VDC with
respect to Pin 12. With Pin 15 connected to Pin 13, connect Pin 16 to the +DC side of the external device and
connect Pin 3 to -DC side of the external device.
CURRENT OUT VOLTAGE OUT