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 and to improve the selectivity of the entire sensor. The sensor response is linear with the concentration of the target gas in air.
Interferences
Gas
Concentration
Meter Output
Carbon Monoxide
300 ppm
< 1.5 ppm
Sulfur Dioxide
5 ppm
< 1 ppm
Nitric Oxide
35 ppm
< 2 ppm
Ethylene
100 ppm
0 ppm
Chlorine
1 ppm
-0.2 ppm
Hydrogen
10,000 ppm
< 5 ppm
Hydrogen Cyanide
10 ppm
-1.4<x<-0.1 ppm
Hydrogen Chloride
5 ppm
0 ppm
Nitrogen Dioxide
5 ppm
-1<x<0 ppm
Features
Compact and Light Weight
Simple to use
TWA, STEL and Peak
Adjustable Alarm
Data Logging Available (Model: ZDL-900)
Description
Environmental Sensors Co.'s Hydrogen Sulfide Meter is a hand held instrument that measures hydrogen sulfide concentration in a range of 0-50 ppm and a resolution of 0.1 ppm.
The instrument makes it possible to monitor hydrogen sulfide vapor in air. The insturment has an LCD display giving concentrations in ppm, a low battery indicator, and an audible alarm that can be set at any level from 0-50 ppm.
With the touch of a button, the meter displays STEL (average of every 15 min.), TWA (8 hour average) and Peak.
ZDL-900 Data Logging Model
The ZDL-900 Hydrogen Sulfide data logging meter stores all of the exposure points for up to 5 logs (a log is created in the instrument's internal memory each time it is used). A log contains: date, time, number of exposure points, the interval between each point, and the actual exposure points. All of the log files can be easily uploaded to PC using components vailable within the Microsoft Windows Operation System or the termianl software included with the instrument.
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 and to improve the selectivity of the entire sensor. The sensor response is linear with the concentration of the target gas in air.
Interferences
Gas
Concentration
Meter Output
Carbon Monoxide
300 ppm
< 1.5 ppm
Sulfur Dioxide
5 ppm
< 1 ppm
Nitric Oxide
35 ppm
< 2 ppm
Ethylene
100 ppm
0 ppm
Chlorine
1 ppm
-0.2 ppm
Hydrogen
10,000 ppm
< 5 ppm
Hydrogen Cyanide
10 ppm
-1.4<x<-0.1 ppm
Hydrogen Chloride
5 ppm
0 ppm
Nitrogen Dioxide
5 ppm
-1<x<0 ppm
Features
Portable
Internal Pump
Rechargeable Battery
Remote Sampling
Simple to Use
TWA, STEL and Peak
Audible Adjustable Alarm
Data Logging
Description
Environmental Sensors Co.'s Hydrogen Sulfide Meter is a portable desktop instrument that measures hydrogen sulfide concentration in a range of 0-50 ppm and a resolution of 0.1 ppm.
The instrument makes it possible to monitor hydrogen sulfide vapor in air. The insturment has an LCD display giving concentrations in ppm every 10 seconds, a low battery indicator, and an audible alarm that can be set at any level from 0-50 ppm.
With the touch of a button, the meter displays STEL (average of every 15 min.), TWA (8 hour average) and Peak.
The internal pump makes it possible to sample from hard-to-reach areas or confined spaces by attaching a flexible tube to the meter.
Data Logging
The Z-900XP meter stores all of the exposure points for up to 5 logs (a log is created in the instrument's internal memory each time it is used). A log contains: date, time, number of exposure points, the interval between each point, and the actual exposure points. All of the log files can be easily uploaded to PC using components vailable within the Microsoft Windows Operation System or the termianl software included with the instrument.
