ATI Q46D Dissolved Oxygen System Part 1 - Introduction
5
O&M Manual
Rev-N (4/21)
• 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.
• Quick and easy one-point calibration method, air calibration method, and sensor zero-cal. To
provide high accuracy, all calibration methods include stability monitors that check temperature
and main parameter stability before accepting data.
• High accuracy three-wire Pt100 temperature input. Temperature element can be user calibrated.
• 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.
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