Easy to Use Internal Pump Rechargeble Battery Short and Long Term Averaging Internal Memory (Data Logging)

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The Z-400XP Chlorine Monitor is a portable desktop instrument for monitoring chlorine concentration in air, with a range of 0-20 ppm, and a resolution of 0.01 ppm. The LCD display updates the concentration (in ppm) every 10 seconds. The instrument also computes a 15 minute average and a Time Weighted Average (updated hourly for up to 8 hours). These values can be viewed anytime during the measurement procedure. When combined with the optional extendable probe, the internal pump makes it possible to sample from hard to reach areas.

With the data logging feature enabled, the meter will store all of the exposure points for each use. The maximum storage capacity is 14,400 data points. This is the equivolent of 5 seperate 8 hour uses. The data is easily uploaded to PC using components available within the Microsoft Windows Operating System or the terminal software included with the instrument.

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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 chlorine in air.

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PERFORMANCE DATA
Sensor Nominal Range Resolution Response Time     (90% Peak) Repeatability Sensitivity Loss Operating Temperature Pressure Range Relative Humidity Dimensions Weight Power Source Battery Life Sensor Life	Electro-chemical 0-50 ppm 0.01 ppm <150 Seconds 5% of output <4% per month -20-40°C Atmospheric ±10% 15-90% non-condensing HxDxW 7.5"x5.75"x2.75" 900 gms Internal Rechargeble Battery or AC Adapter 9 hours (operating time) 2+ years

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Some representative examples of the common compounds and the corresponding signals they give are shown below. For example, the output from the Z-400XP is 0 ppm when exposed to 300 ppm carbon monoxide in air. Care needs to be exercised about using this instrument in the presence of large concentrations of these gases.

CROSS SENSITIVITY DATA
Gas	Actual Concentration	Z-400XP Output
Carbon Monoxide Hydrogen Sulfide Sulfur Dioxide Nitric Oxide Nitrogen Dioxide Chlorine Hydrogen Hydrogen Cyanide Hydrogen Chloride Ethylene	300 ppm 15 ppm 5 ppm 35 ppm 5 ppm 1 ppm 100 ppm 10 ppm 5 ppm 100 ppm	0 ppm -2 ppm 0 ppm 0 ppm 3.5 ppm 0.5-1 ppm 0 ppm 0 ppm 0 ppm 0 ppm