ATI
Q46UV UV254/Turbidity Monitor
Part 1 - Introduction
6
O&M Manual
Rev-D (11/19)
1.4
Q46UV System Specifications
Displayed Parameters
UVA, 0-1.300 ABS, or UVT, 0-100% T
Turbidity, 0.2-1000 NTU
Sensor temperature, -10.0 to 50.0°C (23 to 122ºF)
Loop current, 4.00 to 20.00 mA
Sensor slope/offset
Model number and software version
PID Controller Status
Main Parameter Ranges
UV Absorption, 0-1.300 A
Turbidity: 0-40.00, 0-400.0, 0-4000 NTU
Power
90 - 260 VAC, 50/60 Hz., 10 VA Maximum
or 12-24 VDC, 500 mA max.
Display
0.75” (19.1 mm) high 4-digit main display with sign
12-digit secondary display, 0.3" (7.6 mm) 5x7 dot matrix.
Integral LED back-light for visibility in the dark.
Enclosure
NEMA 4X, polycarbonate, stainless steel hardware,
Mounting Options
Wall, pipe, or panel mount standard. Wall bracket suitable for
either 1.5” or 2” I.D. U-Bolts for pipe mounting.
Conduit Openings
Five ½” NPT openings, Adapter can be removed to provide a 1”
NPT opening in the bottom of the enclosure. Gland seals
provided but not installed.
Relays, Electromechanical:
Three SPDT, 6 amp @ 250 VAC, 5 amp @ 24 VDC contacts.
Software selection for setpoint, phase, delay, deadband, hi-lo
alarm, and failsafe. A-B indicators on main LCD, and C indicator
on lower display.
Analog Outputs
Two 4-20 mA outputs. Output one programmable for UVA or
PID. Output 2 programmable for UVA, DOC, NTU or
Temperature. Max load 450 Ohms for output 1 and 1000 ohms
for output 2. Outputs ground isolated and isolated from each
other. An additional 3
rd
analog option is available.
Output Isolation
600 V galvanic isolation
Optional Relays:
Three SPST, 1 amp @ 24 VDC. Software selection for setpoint,
phase, delay, deadband, hi-lo alarm, and failsafe.
Sensor Cleaner
Optional automatic chemical cleaning system available for
applications where iron and manganese fouling is common.
Ambient Temperature
Analyzer Service, -20 to 60 °C (-4 to 140 ºF)
Sensor Service, 0 to 55°C (23 to 131 °F)
Storage, -30 to 70 °C (-22 to 158 ºF)
