A.2 auxiliary connector j8 pinout, Appendix – American Magnetics 187 Self-Compensating Liquid Level Controller User Manual
Page 69

58
Appendix
Auxiliary connector J8 pinout
A.2 Auxiliary Connector J8 Pinout
The HI level and LO level contacts are provided for external use by the
customer. When a HI or LO level condition exists, the respective contact
pairs are closed. The HI and LO setpoints provide 0.05% hysteresis,
however the respective contact pairs still may “chatter” if the liquid
sloshes, bubbles, etc.
The HI level and LO level contacts also provide positive indication of a
power-off condition. With a power-off condition, both the HI level and LO
level contacts will be closed, which is a state unique to the power-off
condition.
The following table provides the specifications for the relay contacts:
Pin
Function
1
Not used
2
4-20 mA current loop output
(optional feature)
3
0-10 VDC output
(optional feature)
4
Analog output common
5 & 6
Lo level relay contacts (dry)
7 & 8
Hi level relay contacts (dry)
9
Not used
Max switching VA
10
Max switching voltage
200 VDC
Max switching current
0.5 A
Max continuous current
1.5 A
Dielectric between
contacts
200 VDC minimum
J8
Pin 1