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Thermo Fisher Scientific Alpha TDS 200 User Manual

Page 9

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5

3.3 Wiring


Caution: Ensure electrical mains are disconnected before proceeding.

1. Connect the power supply to the three-pin terminal block

VAC live wire = 1

VAC neutral wire = 2

VAC protective ground wire = 3

TDS 200 controller accepts voltages from 85 to 260 VAC, 50/60 Hz or DC.

2. Connect the Pt 100 leads to terminals 13 to 15 of the seven-pin terminal block. Either

wire can be connected to either terminal. Terminals 13 and 14 must be shunted
unless using a 3-wire RTD.


NOTE: TDS 200 is factory set for Automatic temperature compensation. MTC can be
selected in Program P4.0.

3. Power on the controller. The display automatically shows the TDS reading, the ppm

and ‘MEAS’ annunciators lights.


NOTE: In the event Pt 100 is not connected or the connection is broken in the ATC
mode, the display flashes in TDS mode and display OR in temperature mode.