Plc Touch Screen Display - Pentair BIOSHIELD Installation And User Manual

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SECTION 7: OPERATION
UV Intensity Sensor
The PLC monitoring system displays the UV intensity
as a function of percent (0%-100%); this UV intensity
measurement is a relative power measurement of the
UV energy inside the vessel and not a measurement
of UV dose. The relative UV intensity (power) must
be calibrated and will be performed once the system
has been in service for 100 hours.
Lamp Field Safety Cover
On all NSF-50 certified units there is a safety cap that
covers the electrical cables to the lamps. Removing
the Lamp Field Safety Cover or a cable connection
interruption will automatically shut off the UV system's
lamp field and generate an alarm signal.
Alarm Relays
A discrete output relay(s) circuit is provided to
allow for alarm signal of any of the following
monitored conditions: General Alarm, enclosure over
temperature, low UV intensity, vessel water over-
temperature, end of lamp life, and lamp failure.
4-20 Milliamp Output
The 4-20 mA Output sends out the UV Intensity
measurement to an external recording device.
Flow Sensor
This input allows for a GF Signet 2551 flow sensor
with pulsed output to be connected and displayed
on the PLC. The diagram below shows the wiring
configuration between a GF Signet 2551 pulsed
output and the UV Panel.

PLC Touch Screen Display

The Touch Screen Display is used to present
information to the operator as well as serving as a
command interface. The microprocessor performs
various functions that include intercepting operator
commands and updating displayed data. In addition,
the software trends UV intensity, lamp operation and
current hours.
Touch Screen Tabs and Functions
• Alarms: Current triggered alarms and acknowledge
button
• Status: Lamp condition and hours
BIOSHIELD Commercial UV Sterilizer Installation and User's Guide
®
• Options: Reset Lamp Timers, View UV Intensity
Chart, Set Update Interval for flow and
Change Time and Date.
Status (Main) Display
Lamp Status: Lamps will be displayed with a status
indicator to the right. Green for "Lamp ON" and red
for "Lamp OFF".
UV Intensity: The status indicator to the right of the
% will turn red once UV Intensity drops below 70%.
Enclosure Temp: The status indicator to the right
will turn red once the internal enclosure temperature
rises above 120°F.