Emerson Process Management rosemount 3300 series manual Rqqhfwlqjwkh 7UDQVPLWWHU, 2XWSXW

Rosemount 3300 Series

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00809-0100-4811, Rev AA October 2002

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The 3300 Series is a two-wire loop powered transmitter. It accepts power supplies ranging from 11 VDC to 42 VDC. It uses 4-20 mA power superimposed with a HART signal.

To connect the transmitter:

1.Make sure that power supply is disconnected.

2.Remove the cover on the transmitter housing terminal side (see label).

3.Pull the cable through the cable gland/conduit.

4.Connect wires according to Figure 3-12 for non-intrinsically safe output and according to Figure 3-13for Intrinsically safe output.

5.Replace the cover, tighten the cable gland and connect the power supply.

For non-intrinsically safe installations wire the transmitter as shown in Figure 3-12.

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Make sure that the power supply is off when connecting the transmitter.
Figure 3-12. Wiring diagram for non-intrinsically safe installations.
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The HART 275 Communicator requires a minimum load resistance of 250 Ohm within the loop in order to function properly. For maximum load resistance see Figure 3-9(Explosion/Flame Proof) and Figure 3-10(Non-hazardous installations).

The power supply voltage ranges from Vmin VDC to 42 VDC where Vmin￿is the minimum voltage given by:

11 V	:￿￿G￿￿￿￿￿5￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿
16 V	￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿	￿

For Explosion Proof/Flame Proof applications the resistance between the negative terminal on the transmitter and the power supply must not exceed 300 Ohm.

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