For technical parameter and connection terminal diagram pulse output per-amplifier, see Figure 8-1:
(1)Through thread M14*1, Type CMLWF-P-1 per-amplifier is screwed into installation thread holes on the
body of the turbine flow meter, and then is locked with lock nuts.It is a kind of small-sized amplifier of
low driving power, suitable for application in association with normal display instruments.
The output signals are delivered by the connector plugs through 3-wire shielded cable, with metal
shielded network grounded. The connection is as per Figure 8-1.
a. Connection terminal diagram
b. Connection Terminal Diagram for Connecting for Aviation Connector Plugs Terminals
Power supply source: VDD is the nominal value 12VDC
Output signal: square wave Low electrical level：≤1VDC
High electrical level：Power supply voltage VDD-3VDC
Output signal frequency: (at lower limit of flow) not lower than 20Hz
(2)Type CMLWF-P-2 pulse output per-amplifier is a amplifier featuring strong load capacity and adaptability
of power supply source, and it may provide reliable pulse signals to PLC.
For wiring connection, please see Figure 8-1, in which +12VDC is modified to +24VDC.
Power supply source: VDD is the nominal value24VDC
Output signal: square wave
Low level：≤1VDC
High level：Power supply voltage VDD-3VDC
Output signal frequency: (at lower limit of flow) not lower than 20Hz
(3)Type CMLWF-P-3 pulse output preamplifier is a preamplifier designed for high temperature conditions of materials and structures of the detector parts on the basis of Type CMLWF-P-2 amplifier. Under the precondition that the ambient temperature is not higher than 55℃, the medium temperature may come up to 150℃.