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TD2-7D00-072 Arkusz danych(PDF) 10 Page - Magnetrol International, Inc. |
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TD2-7D00-072 Arkusz danych(HTML) 10 Page - Magnetrol International, Inc. |
10 / 72 page 10 54-631 Thermatel Model TA2 Transmitter 2.4.2 Ground Connection The instrument must be grounded in accordance with Article 250 of the National Electric Code. 2.4.3 4-20 mA Output A 4-20 mA output (Analog Output 1) of the flow rate is available at terminal block TB3. This output signal is isolated from the instrument. An active or a passive con- nection is available—see definition below. For units with the optional second mA output (Analog Output 2) this connection is available at terminal block TB5; this output is isolated from the input power and from the primary 4-20 mA loop and shares a common with the pulse output. A passive connection is only avail- able for this loop. Active Connection—Use the active connection when the TA2 is providing power for the 4-20 mA signal. Use connections A- and A+ (see figure 8). The active connection will drive a 1000-ohm loop resistance. Passive Connection—Use the passive connection when an external power supply or the control system is used to power the 4-20 mA loop. Use connections P- and P+ (see figure 8). The resistance is dependent upon the customer-supplied power supply. 2.4.4 Pulse/Alarm Output The optional pulse signal is isolated from the input power and from the primary mA loop output. This signal shares a common with the secondary mA output (Analog Output 2). The pulse output is available with either an active or passive connection. Pulse/alarm output—Use the active connection when the TA2 is providing power for the pulse/alarm output. Use connections A- and A+ on TB4 (see figure 8). Use the passive connection when an external power supply is used to provide power to the pulse/alarm. Use connections P- and P+ on TB4. NOTE: Electrical specifications for pulse and alarm output are specified below. • Pulse Output: •• Active: 24 VDC (±10%) power, 150 mA •• Passive: 2.5 to 60 VDC power, 1.5 Amps • Alarm Output: •• Active: 24 VDC (±10%) power, 100 mA •• Passive: 2.5 to 60 VDC power, 1 Amp. POWER LOOP2 OUTPUT 100-264 VAC DC INPUT + - P- A+ P- LOOP1/HART OUTPUT PULSE/ P+ P- 50/ 60Hz INPUT AC A- P+ A- P+ A+ ALARM TB3 D6 TB4 TB2 TB5 R1 F1 TB1 Figure 9 Wiring Connections Input Wiring Board |
Podobny numer części - TD2-7D00-072 |
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Podobny opis - TD2-7D00-072 |
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