Potentiometer Input Module; Dc Voltage Input Module - Qualitrol 509ITM Series Manual

A Tap Position Input Module may be used with any 509ITM model, but it will only report the
tap position of the Load Tap Changer. To use the full capabilities of the Tap Position Module
a 509ITM-300 unit must be specified. For more information, see Tap Position Input Module
(509ITM-300), page 12.

Potentiometer Input Module

For each Potentiometer Input Module, one standard potentiometer in the range of 1500 -
15000 ohm, as supplied by various Qualitrol case assemblies, is required to measure liquid
level, flow, or gas accumulation. The module must be calibrated on site. See the Using the
Factory Calibrator Tool (Advanced users, only) section in the Software Instructions.
The three conductors and the shield drain lead are connected to the monitor, as shown in
the Potentiometer Input Connections figure.
CAUTION:
Wiring should be continuous, and the shield drain lead must be
grounded only at the instrument.
Potentiometer Input Connections

DC Voltage Input Module

For each Voltage Input Module, one voltage transducer, 0 - 100 mV DC or 0 - 10 VDC, as
specified, is required.
Connect the output wires of the transducer to the terminal block as shown in the DC Voltage
Input Wiring figure.
24
www.qualitrolcorp.com