ATI
Q46C2 2Electode Conductivity System
Part 4
– Electrical Installation
16
O&M Manual
Rev-H (6/19)
The two analog outputs for the standard system are present at terminalTB1. The loop-load
limitation in this configuration is 500 Ohms maximum for each output. Also note that these two
outputs are completely isolated from each other to insure that ground loops do not result from the
connection of both outputs to the same device such as a PLC or DCS.
A ribbon cable connects the power supply assembly with the microprocessor assembly located in
the front section of the enclosure. This cable may be unplugged from the front section of the
monitor if service is needed, but should normally be left in place during installation.
Figure 8 - Q46 Connection Layout
WARNING
Disconnect line power voltage BEFORE connecting line power
wires to Terminal TB7 of the power supply. The power supply
accepts only standard three-wire single phase power. AC power
supplies are configured for 90-260 VAC operation at the factory
at time of order, and the power supply is labeled as such. Do
NOT connect voltages other than the labeled requirement to the
input.