Q45H/64 Ozone Transmitter
Dissolved Ozone Monitor, Measure ozone with ppb resolution or, up to 200 ppm. 4-user selectable ranges. 4-20 mA output and digital display to show dissolved ozone levels in water.
The Q45H/64 Dissolved Ozone Meter is the ideal choice when accurate dissolved ozone levels are required to be displayed locally via an LCD display, or remotely via a 4-20 mA output. The Q45 system offers all the same sensor and range features as the Q46 system but without the integrated PID loop, relay control, or multiple 4-20 mA outputs.
There are 4 User Settable Ranges to choose from on Q45 Ozone Monitor:
- 0-200 ppb (1 ppb resolution)
- 0-2.000 ppm (0.001 ppm resolution)
- 0-20.00 ppm (0.01 ppm resolution)
- 0-200.0 ppm (0.1 ppm resolution)
All ranges are user settable with display panel on the Q45.
|Sensor Type||Membrane-covered Polargraphic (flow type or submersible)|
|Range||0-200.0 PPB, 0-2.000 PPM, 0-20.00 PPM, 0-200.0 PPM (mg/l)|
|Response Time||90% in 60 seconds|
|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|
2-Wire unit: Single 4-20 mA DC, 450 ohms maximum
External DC: Two 0-2.5 VDC, 50K ohms minimum
2-Wire unit: 17-30 VDC, 25 mA maximum
External DC: 5-17 VDC, 10 mA maximum
|Output Isolation||600 V Galvanic isolation|
|Enclosure||NEMA 4X (IP-66) Polycarbonate, V-0 flammability|
|Display||4 digit, 0.75” numeric LCD with 12 digit second line, LED back light|
|Weight||1 lbs. (0.45 Kg)|
|Wetted Materials||PVC and Titanium|
|Sensor Cable||25 ft. (7.5 m) standard, 100 ft. (30 m) max. with junction box|
|Sample Temperature||0-50° C|
|Sample Pressure||0-50 PSIG (Pressure controlled to fixed value)|
|Temperature Sensor||Internal Pt100 RTD|
|Flowcell Materials||Acrylic with barb fittings|
|Sample Flowrate||7-15 GPH (0.5-1.0 LPM)|
|Sample Connections||1/4” I.D. hose barb inlet, 1/2” I.D. hose barb drain for standard flowcell|
|Certifications||CE marked to BS EN 61326-1:2006 Standard UL and CSA General Purpose|
|Size||4.4”H x 4.4”W x 3.5”D (111 x 111 x 90 mm)|
|Mounting Options||Wall or pipe mounting bracket supplied|
|Conduit Entry||Two PG-9 cord grips, 0.16-0.31” diameter cable|
|Ambient Temperature||Operating: -40° to + 60°C Storage: -40° to + 70°C|
|Ambient Humidity||0-95%, Non-condensing|
All systems are supplied with one package of membranes, one 120 cc bottle of electrolyte, and one spare parts kit containing 3 each of all o-rings and special screws.
Flowcell for Dissolved O3 / pH Combo system should be kept within 25’ for monitor.
- Wide Detection Ranges - User Settable ranges from 0-200 PPB up to 0-200 PPM provide maximum application flexibility.
- Loop Power or External DC Power Options - 2-wire loop powered unit standard (17 - 30 VDC), or external DC power (5-17 VDC)
- Analog Output - Isolated 4-20 mA output is standard
- Clear Display - Back-lit large LCD display provides clear visibility in any lighting conditions. A scrolling second line on the display provides additional information and programming prompts.
- pH Input Option- Enables monitor to measure both ozone and pH. One analog output may be assigned to the pH measurement, allowing remote monitoring and recording of both ozone pH simultaneously.
- Flexible Mounting - NEMA 4X (IP-66) enclosure is suitable for wall, pipe, or panel mounting.
Sensor & Flowcell Options
The Q45H Ozone Sensors must be calibrated on-site with the customers' water in process. As pressure and water flow will affect the calibration it is important to perform the calibration in the specific process the sensor will be used to measure ozone in.
Calibration frequency will depend upon ozone concentration in the water and water quality. Higher dissolved ozone levels will consume the electrolyte solution and membrane quality quicker than low levels of ozone. At ozone levels below 2.0 ppm we find the Q45H can maintain stable readings for 6-months at a time between calibrations. However, at ozone levels greater than 20 ppm calibration should be performed at least monthly and ozone levels greater than 100 ppm will require weekly or even daily calibration.
A bottle of electrolyte solution and a pack of 10 membranes are shipped with each Q45H Dissolved Ozone Meter.
Calibration should be performed with a colorimetric dissolved ozone test kit. Below are a few kits we suggest and the potential applications for each.
I-2022 SAM Dissolved Ozone Meter
Best for low level detection of ozone, below 0.75 ppm
I-2019 SAM Dissolved Ozone Meter
Best for high level detection of ozone, direct read to 5.0 ppm
K-7404 Dissolved Ozone Kit
Low cost option to measure ozone from 0 - 3.0 ppm
Interference-Free Dissolved Ozone Measurement
Q45H/64 monitors use a polarographic membrane sensor to accurately measure Ozone in water. The sensor operates much like a battery, generating current that is linearly proportional to the concentration of chlorine dioxide in solution. An Ozone permeable membrane isolates the sensor from the measured sample and insures that the measurement is interference free.
Two versions of the sensor are available, a sensor intended for installation in a flowcell and a sensor intended for submersion applications. Requiring minimal maintenance, sensors are easy to use and easy to maintain. An integral RTD provides temperature compensation and allows temperature to be displayed and transmitted from the monitor.
Ozone sensors require 2 to 4 hours of stabilization time when first installed or after membrane change. ATI offers a battery powered polarizer that can be used to stabilize a spare sensor so it is ready to run within a few minutes of installation. Polarizers simply plug into the sensor connector and require no adjustments.
Sensor Polarizer can be added to the Q45H in the options section above. Separate polarizers are available for the submersion and flowcell style sensors.
|Call For Price||No|
|4-20 mA Output||Yes|
|Relays||2 Alarm Relays + 2 Control Relays|
|Power Requirements||12-30 VDC, 120 VAC or 220 VAC 50/60 hz. please specify desired voltage when ordering|