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TD1-2D00-031 Folha de dados(PDF) 11 Page - Magnetrol International, Inc. |
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TD1-2D00-031 Folha de dados(HTML) 11 Page - Magnetrol International, Inc. |
11 / 72 page 11 54-631 Thermatel Model TA2 Transmitter 2.4.5 Remote Electronics If the electronics are remote from the probe, a remote board with terminal blocks is provided in the housing on the probe. For cable lengths up to 200 feet, the connection between the probe and electronics should be an 8-conductor shielded cable (Belden 8104). For cable lengths up to 500 feet, a 10-conductor shielded cable (Belden 8305) is used. This cable length can be adjusted in the field. If cable other than the recommended Belden cable is used, following are the maximum resistances which should be utilized: 8 Conductor– maximum resistance of 5.4 ohms 10 Conductor– maximum resistance of 10.0 ohms Caution: The probe and electronics are calibrated and shipped as a matched set. The model number is indicated on both the electronics nameplate and the probe nameplate; verify that they are the same. 2.4.5.1 Probe Wiring The probe housing contains a remote board with terminal blocks for ease of wiring between the probe and the elec- tronics. An 8-wire (Belden 8104) or 10-wire (Belden 8305) shielded interconnecting cable from the probe hous- ing to the instrument is required. Refer to Figure 10 for wiring connections inside the probe housing and for remote cable wiring from the probe housing to the elec- tronics housing. 1. Remove electrical power to the instrument. 2. Remove and unplug the display module if provided. 3. Remove the two hex head fasteners using a 1⁄4" socket. This will remove a module consisting of the processor circuit board and the power loop circuit board. 4. Unplug the electrical connections at J1 of the power loop board. 5. Probe wiring connections are made to TB1 on the same side of the power loop circuit board. Refer to Figure 10. 6. Reattach the electrical connections to J1. 7. Reassemble the circuit boards in the enclosure. Make sure that the probe wiring does not get pinched between the standoffs on the circuit board and the attachment lugs in the housing. 8. Reinstall the display module if provided. 9. Apply power to the instrument. Figure 10 Probe Housing TB2 J1 To Probe 1 2 3 4 5 6 7 8 9 10 REMOTE WIRING CABLE CONNECTIONS Belden 8104 Max 200 Feet (60 meters) Wire Color Belden 8305 Max 500 Feet (150 meters) Wire Number TB2 connection Probe Housing TB1 connection at Circuit Board in Electronics Green/White 1 1 1 White/Green 2 2 2 Blue/White 3 3 3 White/Blue 4 4 4 Brown/White 5 5 5 White/Brown 6 6 6 Orange/White 7 7 7 White/Orange 8 8 8 9 9 9 10 10 10 Shield Shield Not used 11 Power/Loop Board in Electronics Housing |
Nº de peça semelhante - TD1-2D00-031 |
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Descrição semelhante - TD1-2D00-031 |
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