How to Measure Dissolved Ozone Using the I-2019 Digital Handheld Meter

The Chemetrics I-2019 Dissolved Ozone Meter is a handheld, battery operated device with an LCD screen readout of dissolved ozone levels. The items needed for taking a test of the levels of ozone dissolved in water include: the I-2019 meter, a zeroing cylinder, a new testing ampoule, a light cover, a test cup, activator solution, and, of course, the sample of dissolved ozone.

Always remember that the steps for taking the test must be done quickly to avoid O3 breakdown before the test is completed. Ozone reverts quickly back to oxygen (O2), and if too much time passes from when you add the dissolved ozone to the test cup to when you take the reading, the reading will be lower than what the true ozone level is in your application.

These are the steps:
1. Turn on the I-2019 meter by pressing the ON/OFF button. The O3 symbol will appear on the screen.
2. Place the zeroing ampoule in the meter’s sample port.
3. Place the light shield over the zeroing ampoule.
4. Press ZERO/TEST button. The O3 symbol will flash for 8 seconds, after which the screen readout will read 0.0.0.
5. Remove the zeroing ampoule and set that aside. Keep the light shield for the next steps.
6. Fill the test cup to the 25 mL line with dissolved ozone.
7. Add 5 drops of activator solution to the test cup.
8. Place tip of new testing ampoule in sample cup and snap off tip against the bottom of the test cup. The vial is vacuum sealed and will fill instantly with the sample.
9. Dry the vial, place it in meter’s test port, and cover with the light shield.
10. Wait 1 minute for the test to develop.
11. Press ZERO/TEST button. The O3 symbol will flash for 3 seconds, and then the reading of the dissolved ozone level will appear on the meter’s screen.

Purchase I-2019 Battery Operated Ozone Meter here:

Watch Video Showing the Steps for Measuring Dissolved Ozone with I-2019 Meter:

Resolution of D16 PortaSens III Portable Detector with Ozone 00-1009 Sensor

The D16 PortaSens III Handheld Monitor with the Ozone Sensor part number 00-1009 can have the detecting range set by the user at any range from 0-5 ppm ozone up to 0-200 ppm ozone. The resolution is 0.1 ppm ozone at any range from 0-5 ppm up to 0-49.9 ppm ozone. The resolution of the readout on the screen is 1 ppm ozone when set at the range of 0-50 ppm up to 0-200 ppm. The standard range for this sensor is 0-20 ppm ozone, which has a resolution of 0.1 ppm.

Purchase D16 Handheld Monitor with O3 Sensor 00-1009 here:

If you already have a C16 or D16 PortaSens monitor and need only the replacement ozone sensor, you can purchase just the sensor cartridge PN# 00-1009 here:

Watch Video Showing Resolution at Various Range Settings:

Video Showing How Resolution of Sensor 00-1009 Increases with Lower Range Settings

How to Wire OS-6 Ozone Monitor to Remote Alarm Panel for O3 Safety Monitoring

The EcoSensors OS-6 Ozone Monitor has a safety control relay built in that is set to activate above the ozone human safety limit of 0.1 ppm. When this relay is wired to the Remote Alarm Panel (RAP-1), a loud audible alarm and flashing light will activate when ozone levels go above 0.1 ppm. This blog explains how to wire the RAP-1 to the safety control relay on the OS-6 Ozone Monitor.

Step 1: Remove the front panel on the OS-6.
Step 2: Insert tip of RAP-1 free cable through one of the nipples on the bottom of the OS-6 monitor.
Step 3: Locate the control relay labeled “ABOVE 0.1 PPM.” Connect the red wire to the Normally Open (N/O) terminal and the black wire to the Common (COM) terminal.
Step 4: Replace the OS-6 front panel.

The OS-6 is now wired to the RAP-1. When mounted on a wall and powered on, an audible and visual alarm will now activate when the ozone levels are above the human safety limit of 0.1 ppm.

Ozone Levels Below 0.1 PPM – Alarm Not Activated
Ozone Levels Above 0.1 PPM – Alarm Activated

Purchase OS-6 Ozone Safety Monitor Here:
Purchase RAP-1 Remote Alarm Panel Here:

Watch video showing how to wire OS-6 Ozone Detector to RAP-1:

I-2019 Dissolved Ozone Digital Meter Kit

The I-2019 Dissolved Ozone Kit contains a meter with a digital readout of dissolved ozone levels in the 0-5 ppm range. Also included in the kit are several accessories: a box of test ampoules, a zeroing cylinder, a light shield, a box of 4 AAA batteries, and a screwdriver for installing the batteries.

The kit is shipped with the batteries NOT installed in the meter. To install the batteries, remove the four screws securing the meter’s back plate. Place the 4 batteries in their receiving slots, and reattach the back plate using the screws.

The I-2019 Dissolved Ozone Digital Meter is now ready to power on.

Purchase I-2019 Dissolved Ozone Kit here:

Watch Video Showing Items Included in Kit and How to Install Batteries:

Sanitize Hands Using SB100 Ozone Spray Bottle

The SB100 Ozone Spray Bottle is a great way to sanitize your hands, and kill any bacteria and viruses on them. The bottle is filled with simple tap water, and when the button is pressed, an electrolitic ozone generating cell creates dissolved ozone as the water sprays out the nozzle. Hold the nozzle about 6 inches from the surface of the hand you are disinfecting, and press the button, allowing both sides if your hand to get completely wet from the spray. Switch hands and spray down your other hand in the same way. Then, rub hands together and allow to air dry. Because ozone (O3) converts quickly back to oxygen (O2), there is no chemical residue left on your hands. There also is no sticky feel left on your hands like that left when you use aloe-based hand sanitizer. In fact, your hands will feel clean and soft and smell fresh.

Purchase SB100 Ozone Spray Bottle here:

Read about electrolytic ozone production here:

Ozone alarm in use, audible and visual

Remote Audible Alarm Panel (RAP-1) is Activated by OS-6 Monitor Relay when Ozone is above 0.1 PPM

RAP-1 Audible and Visual Alarm Activates when Ozone Levels are above 0.1 PPM

In this video the RAP-1, which is a remote audible / visual alarm, is wired to the safety relay switch in the OS-6 Ozone Monitor, which is set to trigger above a 0.1 ppm ozone level. According to OSHA, the exposure limit for workers is 0.1 ppm for 8 hours per day. This relay is permanently programmed to always activate above 0.1 ppm ozone levels.

The decibel levels on the RAP-1 range from 92-103 dBA. The volume can be adjusted by turning the little black dial on the RAP-1 (shown in the video). The RAP-1 light and audible alarm are activated the entire time the OS-6 reads above 0.1 ppm ozone. As the ozone levels drop, the readings drop and result in the flashing light and audible alarm stopping after the reading goes below 0.1 ppm ozone.

Both devices can be purchased through our website. Each product is linked to below:

The RAP-1 Remote Audible Alarm Panel can be purchased here:

The OS-6 Ozone Monitor can be purchased here: