ConLAB RTM-8 Operation And Calibration Manual Download | Manualshive

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RTM-8

ANALOG MULTIPLEXER

OPERATION AND CALIBRATION INSTRUCTIONS

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Summary of Contents for RTM-8

Page 1: ...C Documents and Settings colab My Documents My Documents T RTM RTMMAN 100 doc 1 RTM 8 ANALOG MULTIPLEXER OPERATION AND CALIBRATION INSTRUCTIONS...

Page 2: ...6 CONNECTING TRANSMITTERS TO THE MULTIPLEXER 7 CONNECTING Pt 100 TO THE MULTIPLEXER 8 CONNECTING THE MULTIPLEXER TO A PLC 9 CONTROL 9 1 Enable 9 2 Address 9 3 Address Polarity 9 4 Control Tables 10 CA...

Page 3: ...disassemble the unit as follows a Take off both terminal strips by removing the four screws at the edges Note This does not require disconnecting the cables connected to the strips b Remove the front...

Page 4: ...TO THE MULTIPLEXER 6 1 Two Wire Transmitter A Two Wire transmitter is connected so that its positive terminal is connected to the positive terminal of the power supply and its negative terminal is co...

Page 5: ...at one point When possible connect the ground at the multiplexer s end Figure 4 8 CONNECTING THE RTM 8 TO A PLC The multiplexer s output should be connected to 4 20mA input of the PLC analog module se...

Page 6: ...utputs together connecting the address lines in parallel and selecting between them by controlling the Enable lines individually 9 2 Address The required channel is selected by four address lines The...

Page 7: ...RESS BUS A3 A2 A1 A0 E OUTPUT CHANNEL 0 0 0 0 1 1 1 0 0 0 1 16 0 0 0 1 1 2 1 0 0 1 1 15 0 0 1 0 1 3 1 0 1 0 1 14 0 0 1 1 1 4 1 0 1 1 1 13 0 1 0 0 1 5 1 1 0 0 1 12 0 1 0 1 1 6 1 1 0 1 1 11 0 1 1 0 1 7...

Page 8: ...urrent of 4 000mA h Set the calibrator for Tmax and adjust the S potentiometer to obtain an output current of 20 000mA i Repeat this procedure until satisfactory results are obtained j Change the addr...

Page 9: ...rent and exhibits a High Z state which means than to current is output or absorbed This mode allows the connection of several RTM 8 units to one PLC s analog input by tying their output terminals toge...

Page 10: ...PUTS 4 Address inputs 1 Enable input Logic True High or True Low User selectable Logic Levels Low 0 0 5V High 4 1 40V OUTPUT 4 20mA Current Loop SWITCHING TIME 20 Sec into resistive load INDICATORS 1...

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