Hydrogen Peroxide (H2O2) is an extremely strong oxidizer which is widely used in bleaching applications in the paper industry and is sometimes added to water systems for the purpose of disinfection. In addition, it is used in wastewater collection systems to remove hydrogen sulfide that destroys concrete pipe and manhole structures. Peroxide application in aqueous systems, like most chemical treatment processes, function most efficiently with accurate measurement and control.

In order to facilitate the control of aqueous hydrogen peroxide feed systems, ATI has developed an on-line monitor cable of providing real time measurement of low levels of dissolved H2O2 in solution. The dissolved Hydrogen Peroxide monitor uses a direct sensing polarographic probe mounted in a flowcell to measure H2O2 in a flowing water stream. A peroxide permeable diffusion membrane isolates the sensing electrodes from the measured sample, providing long term stability without electrode fouling problems. The measurement is selective for peroxide and does not respond to most other ions in solution.

Features

• Available in AC powered, battery powered or 2-wire loop powered versions
• Real time peroxide measurements suitable for chemical feed control
• Standard PID control output
• Second analog output plus two alarm or control relays on AC powered units
• Large, easy to read LCD display with LED back light
• Display ranges of 0-2, 0-20, or 0-200 ppm operator selectable
• Direct reading H2O2 sensor requires minimal maintenance
• Nema 4X (IP-66) electronic packaging suitable for wall or panel mounting

Specifications

Measurement Type	Hydrogen Peroxide
Sensor Type	Amperometric membraned cell
Range	0-2.000 ppm minimum, 0-200.0 ppm maximum
Display	Large character LCD with LED back light
Response Time	90% in 60 seconds
Accuracy	±0.5 ppm or 2% of full scale
Sensitivity	0.001 ppm minimum
Zero Stability	±0.005 ppm per week
Electronic Linearity	±0.5%
Span Drift	Generally less than 5% per month
Analog Outputs	2-wire Version: 1 isolated 4-20 mA, 575 ohms max AC Version: 2 isolated 4-20 mA, 575 ohms max Battery Version: 2 0-2.5 VDC, 200K min input
Power	24 VDC for 2 wire version, 115 or 230 VAC, 50/60Hz 5 VA max or two AA cells
Alarm Relay	Two SPDT, 5 A@230 VAC resistive
Relay Coil	Programmable either normally energized or normally de-energized
Enclosure	NEMA 4X, wall or panel mount
Controls	4 membrane switches on front of monitor
Operating Temperature	0 - 50°C
Sample Inlet	¼" ID hose barb
Sample Drain	½" id hose barb
Recommended Sample Flow	6-15 GPH (0.4-1.0 LPM)
Weight	5 pounds

Ordering Information

For pricing please call AFC International at 800-952-3293, 219-987-6825 or fax 219-987-6826 or email sales@afcintl.com.

Description	Catalog No.
Model Q45/84 H2O2 Monitor, 2-wire, Constant Head Flowcell, 25' Cable	Q45/84-1-1
Model A45/84 H2O2 Monitor, Battery Operated, Sealed Flowcell, 25' Cable	Q45/84-5-2

Downloads

Model A45/84 H2O2 datasheet