Nova-Tech LMI Series AA-B-C-E-J-P Metering Pumps - Manual (Page 28)

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Switch or transistors must be capable of
switching15VDCat2milliamperes.Mini-
mumtimeinlowimpedancestate(ON)is50
milliseconds.Minimumtimeinhighimped-
ancestate(OFF)is100milliseconds.
4. Opto
Isolator
2. NPN Transistor
Base goes high
to trigger pump
– Black
– Black
+ White
+ White
3. PNP Transistor
Base goes low
to trigger pump
+ White
– Black
1. Switch Closure
Switch closing
triggers pump
Method of Triggering LMI Pump
Through 4-Pin Connector
7.0 Methods of Externally Triggering or Pacing B7, C7 and P7 Pumps