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Ozone Analyzers and Monitors

Compatibility Chart

  Function Range/ppm Outputs Price
A-21ZX Hand-held portable 0-10 LCD digital $725
A-22 Portable or Fixed 0-20 LCD digital
0-2 V 4-20 mA
USB
$1,100
C-21 Portable or Fixed for VOCs 0-150 VOCs LED bargraph
Audio alarm
0-2 V and relay
$290
C-30ZX Fixed monitor with relay and alarm 0-.14 LED bargraph
Audio alarm
0-2 V and relay
$550
DO3 Hand-held for dissolved ozone 0-5ppm dissolved LCD digital
Audio, LED and
vibration alarms
$550
EZ-1X Hand-held portable 0-.14 LED bargraph

$375

OG-3 Calibration checker 0.1 Ozone outflow port $465
OS-4 Fixed monitor and controller. Digital. 0-10 LCD digital 0-2 V and relay 4-20 mA and RS-232 $770
UV-100 UV absorption analyzer and controller 0-900+ LCD digital RS-232 and USB 0-2 V and 4-20 mA Digital data logger $4,100

Accessories

  Description Price
RAP-2 Remote Alarm Panel and Digital Read-Out $500
DL-3 A custom modified data logger for the C-30ZX or the C-21 $440
EE-2 An environmental enclosure, pre-drilledfor the C, EZ, and OS series of instruments $325
CUV-1-B Carrying case for the UV-100 $780
ZOF-1 Zero ozone filter (scrubber) for the UV-100 $28

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UV Ozone Analyzer
Model UV-100

Ozone Analyzer

The model UV-100 ozone analyzer is for general purpose measurement of ozone in air. Its range is .01-900 ppm (v) with 2% accuracy, and it includes a built-in data logger. The UV-100 weighs only 2.1 kg (4.7 lb), it is powered by an AC adapter and is equally versatile for the laboratory or for process monitoring. The outputs are digital display, 0-2.5 VDC and 4-20 mA. The instrument featurs LEDs to indicate calibration is due, the sample line filter should be replaced, and that the sampling area is above the danger limit of .1 ppm.

Specifications:

  • UV Source: 254 nm mercury lamp
  • Range: .01-900 ppm v/v in 3 ranges: 0-1.00 ppm, 0-10.0 ppm, 0-900.0 ppm
  • Outputs: Digital display. 0-2.5 V, 4-20 mA, data logging
  • Accuracy: 2%
  • Sampling time: 10 seconds
  • LED Indicators: On-off, Recalibrate, Change Filter, >.1 ppm at sample area
  • Size: 95 × 210 × 216 mm (3.75 × 8.25 × 8.50 in)
  • Weight: 2.1 kg (4.7 lb)
  • Power requirement: 12 VDC at 400 mA.
  • Warranty: One year


Click Here to View the UV-100 Manual (PDF 219kb)

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Rugged and Versatile Ozone Sensor
Battery operated, Hand-held, Rugged Model A-22

Dissolved Ozone Monitor

A general purpose sensor and monitor. Designed for rugged indoor field use, factories, pilot plants, process facilities, and sensor and monitoring uses of all kinds. Uses the same precalibrated sensor modules as our OS-4 permanent monitor and controller. All digital technology.

  • Autoranging .030-1.999 ppm and 2.0-20.00 ppm.
  • 10% accuracy. T and RH compensated.
  • 12 hour (est) battery life. 8 hour charge. 4 hour fast charge available.
  • Plug-in precalibrated sensor modules.
  • Internal data logger with instant readout of high, low and average of data.
  • Data port for external data logger such as our DL-3.
  • USB, 4-20 mA, 0-2 VDC outputs for loggers, computers and PLC.
  • Tilt stand and wall hanging hook.
  • Back light for LCD display.
  • Improved HMOS heated metal oxide sensor.
  • Size 108 W × 222 L × 64 D mm .71 kg.
    4¼ W × 8¾ L × 2½ D in 1lb 10 oz.
  • Power source: Internal rechargeable batteries or 12-24 VDC, 500 mA, from external adapter/charger.


Click Here to View the A-22 Manual (PDF 153kb)

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Low Cost Portable Dissovled Ozone Detector
Model DO3

DO3

Nanotechnology enabled electrochemical sensor makes dissolved ozone testing fast, simple, and inexpensive!

Features:


  • User replaceable battery; Portable power for months of detection
  • Stores up to 10 readings for remote sampling
  • Simple and repeatable bottle sampling method
  • No fouling of sensor; No special probes
  • Digital Display; No Consumables, No Chemistries, No Color Matching

Specifications:


  • Range: 0.00-5.00 mg/L (ppm in water by volume)
  • Display: digital readout in .01 mg/L increments
  • Measurement principle: gaseous diffusion
  • Response time: within 10 seconds
  • Size: 79.5 × 39.6 × 34.5 mm (3.13 × 1.56 × 1.36 in)
  • Weight: 49 grams (< 2 oz)
  • Battery: User replaceable CR2450 coin battery


Click Here to View the DO3 Manual (PDF 186kb)

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Pocket Ozone Detector
Model A-21ZX

Pocket Ozone Detector

The A-21ZX is a reliable and inexpensive instrument to check ozone concentrations near ozone generators, air and water purification systems, photocopiers, many industrial and agricultural production processes, and research projects.

The Spectrex Model A-21ZX is a battery operated portable ozone sensor and a continuous-operation digital ozone level monitor. The design combines the latest solid state sensor technology with new air handling mechanisms to optimize the sample presentation to the sensor. Advanced battery and power management circuitry assures efficient operation. The A-21ZX warms up quickly and requires no zeroing or adjustments. Its range covers both the industrial hygiene range of 0-0.3 ppm and extends up to 10 ppm for ozone equipment testing.

Features:

  • Extensive range of 0-10 ppm.
  • Digital readout in 0.01 ppm increments
  • Self contained long-life rechargeable NiMH batteries
  • Warms up in minutes - responds in seconds
  • Ease of calibration and service
  • Operation from self-contained batteries or from AC line
  • Supplied with a carrying case and an AC adapter/charger for 110V 60Hz customers

Specifications:

  • Range: 0-10 ppm; sensitivity as low as .02 ppm
  • Display: digital readout in .01 ppm increments
  • Measurement principle: HMOS (heated metal oxide semiconductor) sensor
  • Response time: within 10 seconds
  • Accuracy: 20%
  • Size: 50 × 100 × 25 mm (2 × 4 × 1 in)
  • Weight: 170 grams (6 oz)
  • Temperature range: 32 -104 F (0-40 C)
  • Approval: CE
  • Power requirements: 12 VDC unregulated; AC adapters available worldwide
  • Battery: Rechargeable batteries last more than 8 hours
  • Compatibility: Should not be used for quantitative measurements in the presence of acid gases, strong halogen compounds, or strong VOCs


Click Here to view the A-21ZX Manual (PDF 97kb)

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Color-bar Ozone Monitor

Model C-30ZX

Color-bar Ozone Monitor

The C-30ZX Ozone Monitor provides a reliable and inexpensive way of continuous monitoring for low levels of OZONE gas for water treatment plants, pulp bleaching mills, photocopier and laser printer centers, fumigation projects, indoor air quality systems, and wherever ozone exposure is possible. The C-30ZX has a very fast and continuous response, constantly monitoring your work environment.

Benefits:

  • Constantly monitors your work environment; shows the ozone concentration by a multicolor graphical display, and alarms when there is a health hazard
  • No installation typically required; easily understood by non-technical personnel
  • Virtually no maintenance

Features:

  • LED readout changes color as ozone level increases
  • Audio alarm and output for data logger
  • Connections for external equipment control
  • For general monitoring and ozone control
  • Many accessories available such as data loggers, calibrators, and protective enclosures with heaters and 4-20 mA outputs

Specifications:

  • Range: .02-.14ppm of ozone (LED scale); .02-.30 ppm via external data readout
  • Bargraph Display: Normally green; yellow at .05 ppm (caution); red at .1 ppm (danger)
  • Response time: Within tenths of seconds of ozone reaching the sensor
  • Measurement principle: HMOS (heated metal oxide semiconductor) sensor
  • Size: 85 × 35 × 60 mm (3.25 × 1.375 × 2.375 in)
  • Weight: 140 gr (5 oz)
  • Power requirements: 12 VDC at 300 mA. AC adapters available worldwide.
  • Outputs: LED bargraph, audio alarm, 0-3 V analog output such as for data loggers, and external alarm relay contacts; alarm actuation and relay contact closure at .1 ppm (standard) and is programmable.

Click Here to View the C-30ZX Manual (PDF 32kb)

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Model EZ-1X
The Ecozone™ - Simple, Inexpensive Ozone Monitor

Model EZ-1X

For monitoring ozone levels near small ozone generators. Ideal for light commercial applications such as bars and restaurants, hotels, photocopy centers, water bottlers, fumigation, research projects, light manufacturing, swimming pools, residential and wherever ozone exposure is possible. For permanent on-site use and for portable work by field engineers and installers.

The EZ-1 has a fast and continuous response. It is rugged and versatile. There are no touchy controls

Features:

  • Constantly monitors your work environment. Ozone concentration shown by a multicolored graphical display from green (safe) to yellow (caution) to red (danger).
  • No installation required. Easily understood by non-technical personnel.
  • Field work and walk around analyses possible via power from internal rechargeable batteries.
  • Compatible with other Eco Sensors VOC and ozone sensing, monitoring, and control products.
  • Lowest cost.

Specifications:

  • Range: .02-.14 ppm of ozone
  • Bargraph Display: Normally green. Yellow at .05 ppm (caution). Red at .1 ppm (danger).
  • Response time: Within 10s of seconds of the ozone reaching the sensor.
  • Measurement Principle: HMOS (heated metal oxide semiconductor) sensor.
  • Size: 85 × 35 × 60 mm (3.25 × 1.375 × 2.375 in).
  • Weight: 154 gr (6 oz).
  • Power Requirements: 12-24 VDC at 300 mA. AC adapters available worldwide.
  • Battery: Self-contained NiMH. Approximately 8 hour capacity. Recharged by AC adapter overnight.


Click Here to View the EZ-1X Manual (PDF 42kb)

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Ozone Source Calibrator

Model OG-3

Ozone Source Calibrator

The OG-3 ozone source calibrator is for calibration verification and simple approximate calibration of Eco Sensors ozone instruments.

It is available in either of two outputs: .1 ppm or 1 ppm. The OG-3 is powered by an AC adapter supplying 12 VDC.

The OG-3 uses a precision quartz UV lamp ozone generator. Its output is adjusted in our laboratory by comparison with a NIST traceable standard.

Specifications:

  • Ozone Source: UV lamp
  • Output Ozone Concentration: .1ppm (standard) or 1ppm (upon request)
  • Accuracy: 10%
  • Warm-up time: 30 minutes
  • Temperature of use: Indoor room temperature
  • Size: 36 × 95 × 160 mm (1.41 × 3.75 × 6.30 in)
  • Weight: 255 gr (9 oz)
  • Power requirement: 12 VDC at 300 mA
  • Warranty: One year


Click Here to View the OG-3 Manual (PDF 3kb)

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Ozone Switch

Model OS-4

Pocket Ozone Detector

Acts like a thermostat to control ozone generators and alarms based on an adjustable ozone concentration set-points. Ozone ppm readout via digital meter. Simple and inexpensive.

Typical Applications:

  • Monitor ozone levels in treatment storage areas for fruits, vegetables, and other agricultural products. Monitor ozonated HVAC systems. General monitoring at .03-20 ppm
  • Control the output of ozone generators using the set-point controlled relay in the OS-4.
  • Use as either ozone leak alarm or ozone failure alarm for all sizes of ozone generators

Features:

  • Easy to install. Minimal adjustments.
  • Sensor is in a replaceable precalibrated module.
  • Separated by a 42-inch. cable, the instrument is not in the high ozone area.
  • Sensor reading is temperature and relative humidity compensated
  • Replacement sensor is miniature, low cost, precalibrated and also fits our A-22.
  • Operates from 12-24 volts DC or from AC adapters available worldwide.
  • Alarms, data loggers, and other accessories available
  • Programmable turn-on and turn-off set-points.
  • Indication when .1 ppm safety standard exceeded.


Click Here to View the OS-4 Manual (PDF 222kb)

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Remote Alarm Panel RAP-2

Remote Alarm Panel and Digital Read-Out

Remote Alarm Panel RAP-2

The RAP-2 Remote Alarm Panel is for alarming when signals from ozone and VOC monitors reach preset limits or set points. The alarms are a red strobe light and a loud audible alarm (90 dB at 3 meters). There is also a digital readout in PPM of ozone. The RAP-2 also outputs its input signal in 4.20 mA form for building automation systems and other applications requiring long signal paths. The RAP-2 is powered by 14-30 VAC or DC. This remote alarm panel is usually used with the C-30Z, C-30ZX, EE-2, and 0S-4. It can be used with some other instruments by special order.

Typical Applications:

  • Swimming pools.
  • Laundries using ozone.
  • Large noisy factory environments.
  • Casinos and other ozonated public areas.
  • Agricultural storage areas.
  • Farms.
  • Food processing plants.

Features:

  • Rugged polycarbonate enclosure with hinged door.
  • Accepts input of 0-2 VDC, 4-20 mA and relay closure.
  • Loud pulsating audio alarm with silencing button.
  • Very bright red strobe light.
  • 4-20 mA signal and relay outputs.
  • Alarm set-point adjustment.
  • Uses easily available 14-30 VAC or DC power.
  • Signals from instruments can be transmitted by inexpensive twisted pair.
  • 125 × 175 × 77 mm (5 × 7 × 3 in).


Click Here to View the Rap-2 Manual (PDF 77kb)

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Color-bar, VOC Gas Detector
Model C-21 with Audio Alarm & Data Logger Output

Color-bar, VOC Gas Detector

Includes Audio Alarm, Battery operation and Provision for External Alarm and Data Logger

For paint shops, printers, dry cleaners, woodworkers, vehicle repair facilities, chemical production areas and wherever indoor air quality monitoring is required: the Model C-21 gas sensor helps you comply with the new VOC air quality regulations for hydrocarbon gases and solvent vapors.

Benefits:

  • Constantly monitors your work environment. Detects leaks and poor air quality before they are a health hazard. Alarms below OSHA TLV for most common solvent-based VOCs.
  • No installation. Easily used and understood by non-technical personnel.
  • Virtually no maintenance.
  • 24 hour per day, 7 days a week guarding for leaks.
  • Beeper will sound when preset level of contamination is reached.

Features:

  • Highly sensitive to solvent vapors and other VOCs. Bright green-yellow-red display clearly shows hazard level of gas or vapor.

    Typical color indications for PERCHLOROETHYLENE:

    • All Green 20 ppm
    • All Amber 40 ppm
    • One red 50 ppm
    • Two red 100 ppm
    • Three red 140 ppm


  • Detects down to OSHA, EPA, and other regulatory-mandated levels...typically at low ppm concentrations.
  • Has built-in rechargeable battery for portable use in tracking leaks. (This allows for 2 hours unplugged to track down a leak)
  • Access jack to external alarm and data logger
  • Rugged construction with many safety features.
  • Made in U.S.A.

Safety Features:

  • Enclosure: Self extinguishing ABS plastic
  • Sensor: Heated element is flame arrestor protected
  • Electrical: (a) Circuits operate at 12 volts/250mA or less with no high capacity inductors or capacitors. (b) Automatically resetting fuse to protect against excess current flow and excess heating. (c) Dual zener-type diode barrier to protect against surges, spikes, and over-voltage and reverse polarities.

Specifications:

  • Range: Full scale = 50-100 ppm for most solvent based VOCs.
  • Bargraph display: Green = normal. Yellow = caution. Red = danger.
  • Response time: Within a few seconds of the VOC gas reaching the sensor.
  • Measurement principle: HMOS (heated metal oxide semiconductor) sensor.
  • Size: 85 × 35 × 60 mm (3.25 × 1.375 × 2.375 in)
  • Weight: 140 gr (5 oz).
  • Power requirements: 12 VDC at 300 mA. AC adapters available worldwide.
  • Battery: Self-contained NiCad or NiMH. Approximately 2 hour capacity. Recharged by AC adapter overnight.

Gases and Vapors the C-21 will Detect:

Acetaldehyde
Acetone
Acetonitrile
Acetylene
Allyl alcohol
Ammonia
Arsine
Benzene
Butane
2-Butanone (MEK)
2-Butoxyethanol
Butyl acetate
Butyl alcohol
Carbon monoxide
Carbon tetrachloride
Chlorobenzene
Chloroform
Chloroprene
Cumene
Cyclohexane
Cyclohexanol
Cyclohexanone
Dichloroethyl ether
Diacetone alcohol
Diborane
1,1 Dichloroethane
1,2 Dichloroethane
Diethylamine
Diethylamino ehtanol
Diiaobutyl ketone
Dimethylamine
Dimethylformamide
Dinitrobenzene
Dinitrotoluene
Ether
2-Ethoxyethanol
Ethyl alcohol
Ethylamine
Ethyl benzene
Ethyl bromide
Ethylbutyl ketone
Ethyl chloride
Ethyl ether
Ethyl foemate
Ethylenediaznine
Ethylene dichioride
Ethylene oxide
Formaldehyde
Frfuyl alcohol
Gasoline/Diesel fuel
Heptane
Hexachloroethane
Hexane
2-Hexanone
Hydrogen
Hydrogen bromide
Hydrogen chloride
Hydrogen cyanide
Hydrogen sulfide
Isoamyl alcohol
Isobutyl alcohol
Isopropyl alcohol
LP. gas
Methane
Methyl alcohol
Methyl butyl ketone
Methylamine
Methyl cellosolve
Methyl chloride
Methyl chloroform
Methylcyclohexane.
Methylcyclohexanot
Methylene chloride
Methyl ethyl ketone
MIBK (Hexone)
Methyl mercaptan
Naptha
Napthalene
Natural gas
Nitro benzene
Nitrochloro benzene
Nitroethane
Nitrotoluene
Pentane
2-Pentanone
PERCHLOROETHYLENE
Pet. distillates
Phenylether
Phosphine
Propane
Propylene oxide
R-11 R-12 R-22
R-S02
Silane
Sulfur dioxide
Toluene
1,1,1, TCE
1,1,2 TCE
Trichioroethylene
Xylene

The above listing Is only a partial one, with materials actually run In our laboratory,
Detection threshold is typically at or below the OSHA established limits.

Click Here to View the C-21 Manual (PDF 29kb)

Click Here for the C-21 Brochure (PDF 87kb)

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Data Logger (DL-3)

os1x

The DL-3 is a custom modified data logger configured for Eco Sensors instruments and applications. It plugs into the accessory jack of the C-30ZX or the C-21 to log data without further adjustments. It can download logged data into a PC or laptop by its RS-232 serial cable, or it can send data continuously to the PC for continuous display and analysis by the PC.

Features:

  • Automatic logging time and max gas concentration scaling (X and Y axis scaling).
  • Stores over 8,000 readings.
  • On-line, real time display of data when connected to a PC and an operating gas sensing instrument.
  • Graph statistics appear on screen: Max, Min, Average, Date and Time.
  • Zoom capability to for more detailed viewing of any part of the graph.
  • Graphs can be labeled and pasted into other applications.
  • Uses readily available 9 V alkaline battery. Records for up to one year.
  • Simple operation and rugged construction.

Specifications:

  • Data Output: RS-232 via DB9 connector 1200 baud
  • Accuracy: 1%
  • Operating temperature: -20 deg to 70 deg C (-4 deg to 158 deg F)
  • Relative Humidity: 5 - 95% non-condensing
  • Operating System Required: Windows®
  • Controls: One button to start and stop recording and to turn the data logger on and off
  • Size: 73 × 59 × 41 mm (2.875 × 2.3125 × 1.625 in)
  • Weight: 140 g (5 oz)


Clcik Here to View the DL-3 Manual (PDF 4kb)

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Environmental Enclosure (EE-2)

os1x

The Environmental Enclosure (EE-2) is for dust and water protection in industrial and agricultural environments and in public places. This is a Euro-Style plastic enlosure 120 mm wide, 180 mm high, and 80 mm deep (5 in × 7 in × 3 in) with a clear polycarbonate gasketed front cover. There are screened air inlets on the sides and an exhaust fan on the bottom.

Everything in the enclosure is powered by 12-16 VDC or, as an option, 24 VAC or DC. Other options are a relay to control external equipment, a 4-20 mA signal loop output, and an enclosure interior heater. Wiring to external equipment is via a semi-sealing side gland.

Typical Applications:

  • Factory environments with dust, spray, and general need for extra protection.
  • Farms to protect from dust and wash downs.
  • Agricultural storage areas to protect from treatment chemicals, sprays, dust, insects, and to provide an enclosed environment for instrument heating, etc.
  • Public areas such as office buildings, apartment complexes, and hotels to protect against tampering with the instrument yet keep it visible.
  • Other: swimming pool maintenance sheds, water supply control areas, trash bin areas, in ships, attached to machinery, and mobile skid packages.

Features:

  • Rugged construction made of tough polycarbonate.
  • Clear polycarbonate gasketed cover with 4 mounting screws.
  • Inside mounting board predrilled for Eco Sensors C, EZ, and OS series of instruments.
  • Relay output option with 5 amp contacts.
  • 4-20 mA output option.
  • Interior space heater option.
  • Designed so that any dust or liquid droplets that do enter the enclosure flow around the instument while the gas sample diffuses to the instrument gas inlets.
  • Bottom mounted exhaust fan to maintain air flow and remove accumulating dust, etc.
  • Extra top and side knock-outs so that the customer can attach his own additional piping and wiring.
  • Uses same 12 VDC output AC adapter that is supplied with the instrument.
  • 24 VAC or DC power option such as for HVAC and OEM machinery systems.


Clcik Here to View the EE-2 Manual (PDF 59kb)

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  1. Important qualitative ozone relationships. [PDF - 32kb]
  2. Ozone sensing and leak detection. [PDF - 38kb]
    Lawrence B. Kilham. Reprinted from Water Conditioning & Purification Magazine. September 1995.