Z Carbon Monoxide Z-500
Carbon Monoxide Z Meter

  • Meets OSHA Accuracy Requirments

  • Computes Time Weighted Average

  • Display's Short Term Exposure Limit

  • Battery status LED

  • Data Logging Available


Environmental Sensor Co.’s Carbon Monoxide Meter is a hand held instrument which measures carbon monoxide concentration in air with a range of 0-300 ppm and a resolution of 1 ppm. The instrument features an LCD display, a low battery indicator, and an audible alarm that can be set at any level, within range of the sensor. The LCD display outputs the current ammonia concentration (in ppm) every ten seconds. Peak, STEL (15 minute average), and TWA (an 8 hour average) values can be also be viewed at any time.


The sensing element of the instrument is an electro-chemical 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 and to improve the selectivity of the entire sensor. The sensor response is linear with the concentration of cabon monoxide in air.


PERFORMANCE DATA

Sensor
Nominal Range
Maximum PPM
Resolution
Temperature Range
Pressure Range
Response Time
     (90% peak)
Relative Humidity Range
Max. Zero Shift w/ Temp.
      Change of(0°C to +40°C)
Long Term Output Drift
Repeatability
Alarm
Dimensions (HxDxW)
Weight
Power Source

Battery Life
Sensor Life
Electrochemical
0 -1000 ppm
2000 ppm
1 ppm
-20°C to 50°C
Atmospheric ±10%

<30 Seconds
15-90% Non Condensing

3 ppm
<1% signal loss/year
5% of signal
Audible, 80db at 10 cm
4.75"x2.5"x1.5"
170 gms
9-V Alkaline Battery or
an optional AC adapter
240 hours
2+ years



This sensor may respond to certain gases in addition to carbon monoxide. This table shows the typical response expected when the meter is exposed to a given gas concentration. Care needs to be exercised about using this instrument in the presence of large concentrations of interfering gases. Contact the manufacturer if difficulties are suspected with interfering gases or with other usage problems.


Cross-Sensitivity Data

Gas

Actual
Concentration
(ppm)

Z-500
Display
(ppm)
Hydrogen Sulfide
Sulphur Dioxide
Nitric Oxide
Nitrogen Dioxide
Chlorine
Hydrogen
Hydrogen Cyanide
Hydrogen Chloride
Ethylene
15
5
35
5
1
100
10
5
100
38
3
10
-3
-0.5
<60
5
0
90