ATI
Q46UV UV254/Turbidity Monitor
Part 1 - Introduction
5
O&M Manual
Rev-D (11/19)
1.3
Features
Standard Q46 electronic transmitters are designed to be a fully isolated instruments for operation
from either 90-260 VAC or 12-24 VDC power supplies.
Two 4-20 mA analog outputs are standard, and a third analog output is available as an option.
One output may be configured for PID control, while other output is programmable to track either
Turbidity, UVA, Temperature, or DOC.
Digital communication option for Profibus-DP, Modbus-RTU, Modbus TCP/IP, or Ethernet-IP.
Output Hold, Output Simulate, Output Alarm, and Output Delay Functions. All forced changes in
output condition include bumpless transfer to provide gradual return to on-line signal levels and to
avoid system control shocks on both analog outputs.
Units provide provides three SPDT relay outputs and two isolated analog outputs. Software
settings for relay control include setpoint, deadband, phase, delay, and failsafe.
Selectable Output Fail Alarm feature on Relay C allows system diagnostic failures to be sent to
external monitoring systems.
Large, high contrast, custom LCD display with LED back light provides excellent readability in any
light conditions. The secondary line of display utilizes 5x7 dot matrix characters for clear
message display two of four measured parameters may be on the display simultaneously.
Diagnostic messages provide a clear description of any problem with no confusing error codes to
look up. Messages are also included for diagnosing calibration problems.
Security lock feature to prevent unauthorized tampering with transmitter settings. All settings can
be viewed while locked, but they cannot be changed.
Equipment bearing this marking may not be discarded by traditional methods in the
European community after August 12 2005 per EU Directive 2002/96/EC. End
users must return old equipment to the manufacturer for proper disposal.
