Z 400 Chlorine Monitor
Chlorine Z Image

  • Meets OSHA Accuracy Requirments

  • Computes Time Weighted Average

  • Display's Short Term Exposure Limit

  • Battery status LED

  • Data Logging Available


Environmental Sensor Co.’s Chlorine Meter is a hand held instrument, which measures chlorine concentration in air with a range of 0-20 ppm and a resolution of 0.1 ppm. The instrument features an LCD display, low battery indicator, and an audible alarm. The Peak, STEL (15 minute average), and TWA (an 8 hour average) values can also be viewed at any time.

With the optional data-logging feature, the meter stores all of the exposure points for each use (up to 5 measurements). There is a corresponding date and time stamp for each series of exposure points. All of the memory contents can be easily uploaded to PC using the terminal software included with the instrument or components available within Microsoft Windows.


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. This improves the selectivity of the entire sensor. The sensor's response is linear with the concentration of chlorine in air.

PERFORMANCE DATA
Sensor
Nominal Range
Maximum PPM
Resolution
Temperature Range
Pressure Range
Response Time
     (80% Peak)
Relative Humidity Range
Long Term Output Drift
Repeatability
Alarm
Dimensions (HxDxW)
Weight
Power Source

Battery Life
Sensor Life
Electro chemical
0 - 20 ppm
250 ppm
0.1 ppm
-20°C to +50°C
Atmospheric ±10%

<60 Seconds
15-90% non-condensing
<2% signal loss/month
2% of output
Audible, 80db at 10 cm
4.75"x2.5"x1.5"
170 gms
9-V Alkaline Battery
or optional AC Adapter
240 hours
2+ years



This sensor may respond to certain gases in addition to nitric oxide. 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-400
Display
(ppm)
Carbon Monoxide
Hydrogen Sulfide
Sulphur Dioxide
Nitric Oxide
Nitrogen Dioxide
Hydrogen
Hydrogen Cyanide
Hydrogen Chloride
Ethylene
300
15
5
35
5
100
10
5
100
0
1.5 - 0
-0.05
0
5
0
0
0
0