Onicon F-2600 Uživatelský manuál stáhnout pdf (Strana 38)

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F-2600 & F-2700 Vortex Flow Meter Manual 02/15 - 0808-7 / 19204 Page 38

2.6.7 Frequency Output Connections

The frequency output is used for a remote counter. It can be scaled to output a 1 to 10 kHz

signal proportional to mass or volume ow, temperature, pressure or density.

The frequency output requires a separate 5 to 36 VDC power supply and there are current

and power specications that must be observed when using this output. The output can

conduct a current up to 40 mA and can dissipate up to 200 mW. The output is isolated

from the meter electronics and power supply.

Freq. Out -

Freq. Out +

Freq. Out voltage = +V

Select resistor so that current

through Freq. Out <= 40 mA

Figure 21. Isolated Frequency Output Using External Power Supply

Freq. Out voltage = +V

Select resistor so that current through Freq. Out <= 40 mA

Freq. Out

Freq. Out -

Figure 22. Non-Isolated Frequency Output Using External Power Supply

2.6.5 Optional Backlight Connection

The loop power meter has an optional backlight connection provided. It is intended to be

input. Both options are shown below.

12 to 36 VDC

35 mA max.

Figure 23. Backlight Using External Power Supply

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Onicon F-2600 Uživatelský manuál Strana 38