ONICON F-2600 - Manual (Page 37)

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F-2600 & F-2700 Vortex Flow Meter Manual 02/15 - 0808-7 / 19204 Page 37
2.6.3 Pulse Output Connections
The pulse output is used for remote totalization. When the preset volume or mass (defined
in the totalizer settings, see page 62) has passed the meter, the output provides a 50
millisecond square pulse.
The pulse output requires a separate 5 to 36 VDC power supply. The pulse output optical
relay is a normally-open single-pole relay. The relay has a nominal 200 volt/160 ohm
rating. This means that it has a nominal on-resistance of 160 ohms, and the largest voltage
that it can withstand across the output terminals is 200 volts. However, there are current
and power specifications that must be observed. The relay can conduct a current up
to 40 mA and can dissipate up to 320 mW. The relay output is isolated from the meter
electronics and power supply.
Figure 19. Isolated Pulse Output Using External Power Supply
Figure 20. Non-Isolated Pulse Output Using External Power Supply