Ethylene Oxide Z Meter JPG

  • Meets OSHA Accuracy Requirements

  • Computes Time Weighted Average

  • Display's Short Term Exposure Limit

  • Battery status LED

  • Data Logging Available


The Z-1200 Ozone Meter is a hand held instrument which measures ozone concentration, in air, with a range of 0-2 ppm and a resolution of 0.02 ppm. The instrument has an LCD display, which is updated every 10 seconds. A 15-minute average (STEL) and an hourly average can also be viewed. The meter also features a low battery indicator and an audible alarm, which can be set at any level from 0-2 ppm.


The sensing element of the instrument is an electrochemical cell. The cell is a four-electrode type, which contains a working and an active auxiliary electrode. The signal from the auxiliary electrode is used for temperature compensation. This improves the selectivity of the entire sensor. The sensors response is linear with the concentration of ozone in air.


PERFORMANCE DATA

Sensor
Nominal Range
Maximum PPM
Resolution
Temperature Range
Pressure Range
Response Time
   (90% Peak)
Relative Humidity Range
Maximum Zero Shift
(-20°C to 50°C)
Long Term Output Drift
Repeatability
Alarm
Dimensions (HxDxW)
Weight
Power Source
Battery Life
Sensor Life
Electrochemical
0.00-2.00 ppm
5 ppm
0.02 ppm
-20°C to 50°C
Atmospheric ±10%

<150 Seconds
15-90% Non Condensing

36 ppb
<4% signal loss/year
5% of signal
Audible, 80db at 10 cm
4.75"x2.5"x1.5"
170 gms
9-V Alkaline Battery
240 hours
2+ years


This sensor may respond to certain gases in addition to ozone. This table shows the typical response expected, when the meter is exposed to a given gas concentration of the specified gas. Care needs to be exercised about using this instrument in the presence of large concentrations of these gases.

Cross-Sensitivity Data
Gas
Actual
Concentration (ppm)
Z-1200
Display (ppm)
Carbon Monoxide
Hydrogen Sulfide
Sulphur Dioxide
Nitric Oxide
Nitrogen Dioxide
Chlorine
Hydrogen
Hydrogen Cyanide
Hydrogen Chloride
Ethylene
300
15
5
35
5
1
100
10
5
100
0
-2
0
0
3.5
0.5-1
0
0
0
0