ATI
Q46H/65 Residual Chlorine Dioxide System
Part 1 - Introduction
10
O&M Manual
Rev-J (11/18)
Max. Sensor-to-Analyzer
100 feet (30.5 meters), with junction box
Distance
Optional pH Input
Accepts standard combination or Q22P pH Sensors
Flow Cell
Constant head overflow, clear cast acrylic, 7-30 GPH, 15 GPH
r
ecommended, inlet is ¼” hose barb at 1/8” MNPT, outlet is ½”
hose barb at 3/8” MNPT
Power
90 - 260 VAC, 50-60 Hz, 10 VA max or
12-24 VDC, 500 mA max.
Enclosure
NEMA 4X, polycarbonate, stainless steel hardware,
weatherproof and corrosion resistant,
Mounting Options
Wall or pipe mount bracket standard. Bracket suitable for either
1.5” or 2” I.D. U-Bolts for pipe mounting.
Panel mount adapter optional.
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.
Optional Relays:
Three additional non-isolated low power relays available. SPST,
1 Amp @ 30 VDC.
Analog Outputs
Two 4-20 mA outputs. Output one programmable for PPM ClO
2
or PID. Output 2 programmable for PPM ClO
2
, Temperature, or
pH. Max load 500 Ohms for each output. Outputs ground
isolated and isolated from each other. An additional 3
rd
analog
option is available.
1.5
Q46H Performance Specifications
Accuracy
0.5% of selected range or 0.02 PPM
Repeatability
0.3% of selected range or 0.01 PPM
Sensitivity
0.05% of selected range
Non-linearity
0.1% of selected range
Warm-up Time
3 seconds to rated performance (electronics only)
Supply Voltage Effects
± 0.05% span
Instrument Response Time
60 seconds to 90% of step input at lowest damping
