Q46/85 Peracetic Acid Monitor

An on-line water quality monitor capable of providing real time measurement of low levels of PAA in solution

Key benefits

  • Reliable chemical feed control
  • Interference-free measurement
  • Multiple flowcell options

Applications

The Q46/85 Peracetic Acid Monitor is available for a wide range of applications including:

  • Food & Beverage
  • Medical Disinfection
  • Egg Washers
  • Cooling Water
  • Wastewater
Category:

Peracetic Acid disinfection monitoring you can rely on

Peracetic acid (PAA) is an extremely strong oxidizer widely used in the food industry for disinfection of piping systems and processing equipment. It is also used for spray washing of food products, and for disinfection of cooling water systems. As a disinfecting agent, PAA is often preferred because it produces no harmful breakdown products. As with any disinfection system, maintaining proper residual values is the key to effective pathogen control. To facilitate reliable chemical feed control, ATI has developed an on-line water quality monitor cable of providing real time measurement of low levels of PAA in solution.

The Q46/85 Peracetic Acid Monitor uses a direct sensing polarographic probe. The probe is typically used in a flowcell, but a submersible sensor is also available. A permeable diffusion membrane isolates the sensing electrodes from the measured sample, providing long-term stability without electrode fouling problems. The measurement is selective for PAA and is not affected by changes in hydrogen peroxide concentration, which is always present in PAA solutions.

Features & specification

  • Loop-powered or battery operation
  • External 5-17 VDC version for solar power applications
  • Measurement from 0-200 ppb to 0-200 ppm
  • Constant-head flowcell simplifies operation
  • Sealed flowcell option for recirculation systems
  • Large, easy-to-read LCD display
  • Clear, menu-driven user interface
  • NEMA 4X (IP-66) enclosure
  • Wall or pipe mounting bracket standard Built-in PID controller
ELECTRONIC MONITOR Details
Display Range 0-20.00, 0-200.0, 0-2000 ppm
Accuracy ± 0.3 PPM or 2% of full scale
Repeatability ± 0.1 PPM
Non-Linearity 0.1% of selected range
Temperature 0.01% of span/°C
Power 90-260 VAC, 50/60 Hz, 10 VA max; 12-24 VDC, 500 mA max
Relays Two isolated 4-20 mA, 500 Ω load max (3rd output optional)
Display 4-digit, 0.75″ numeric LCD with 12-character second line, LED backlight
Enclosure NEMA 4X (IP-66) Polycarbonate, V-0 flammability
Operating Temperature -40 to + 60°C
Weight 6 lbs. (2.7 kg) with sensor, flowcell & accessories
Zero Drift < 0.01 PPM/month
SENSOR & FLOWCELL Details
Sensor Membrane-Covered Polarographic
Materials PVC
Response Time 90% in 60 sec
Temperature Limits 0 to 50°C
Pressure Limit 0-50 PSIG
Sensor Cable 25 ft (7.5 m) standard
Sensor Flowcell Clear Acrylic Constant-Head Overflow standard; optional Sealed Acrylic Flowcell
Sample Connections 1/4″ I.D. hose barb inlet, 1/2″ I.D. hose barb drain for standard flowcell
Temperature Sensor Internal Pt100 RTD
Sample Flow 5-15 GPH (0.3-1.0 LPM)
ORDERING INFORMATION Model Q46/85-A-B-C-D-E PAA MONITOR
Suffix A – Power 1 – 100-240 VAC, ±10%, 50/60 Hz

2 – 12-24 VDC (requires 500 mA)

Suffix B – Sensor Style 1 – Sensor with constant head flowcell and 25 ft cable

2 – Sensor with sealed flowcell

3 – Submersible sensor with 25 ft cable

Suffix C – Digital Output 1 – None

2 – Profibus-DP

3 – Modbus-RTU

4 – Ethernet-IP

5 – Modbus-TCP/IP

Suffix D – Optional Output (select only one) 1 – One additional 4-20 mA output

3 – Three additional low power relays (SPST, 0.5 A max)

Suffix E – System Assembly 1 – None

2 – Panel with flow controls, without flow switch

3 – Panel with flow controls, with flow switch

ACCESSORIES

Part Number Description
07-0100 NEMA 4X junction box
31-0037 7-conductor interconnect cable, 100 ft
05-0094 Panel mount bracket kit
47-0005 2″ U-bolt, 304SS
55-0057 Fixed flow regulator, 400 cc/min 1/4″ inlet & outlet, Viton

Q46/85 Peracetic Acid Monitor

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