IWAKI EH-E, Инструкция по эксплуатации

Страница: 29 / 39

4.External Control
4.4 Analog Mode
Press EXT to operate the pump in external mode. The pump speed will now be
determined by the level of the milliamp signal as shown in the graph. The stroke
length can be adjusted manually to set the volume pumped per stroke.
4.
STOP Function
The EH-E series pump also includes a STOP function which allows an external
signal to stop the operation of the pump. A switch or solid state device capable of
switching 5 VDC at 2 mA can be connected to terminals 6 (positive) and 8 (negative)
of the terminal block. Closing this circuit temporarily interrupts pump operation.
Opening this circuit resumes pump operation. If the pump is operating in external
digital mode, any pulses received while the pump is stopped will be saved (up to a
maximum of 255). When pump operation resumes, saved pulses will allow the pump
to ''catch up'' by producing the correct number of pump strokes that should have
occurred while it was stopped.
- 27 -