Air Quality Meter Gasman-NO2 “Nitrogen Dioxide”

Gasman-NO2 Unique Air Quality Meter
personal protection with datalogger / Optional software and data cable ATEX II 1G EEx ia IIC T4 / ATEX II 2G EEx ia d IIC T4 (EEx ia (d) IIC T3/T4)

This Air Quality Meter is a unique gas meter which protects against a specific gas, inflammable or toxic. The Air Quality Meter Gasman warns with a penetrating alarm and an optical signal (useful when there are loud noises in the surrounding area) of the existence of dangerous gas concentrations and shows on screen the value of the gas measurement. In addition with this gas meter you are able to save measurements and transmit them onto the computer for evaluation. For that, it is necessary to require the additional option of data logger and optional software. The function of logger will allow you to keep all the values in the meter with a quota of measurement from 1 minute to a total of 900 hours. The data saved in the apparatus can be, at any time, transferred onto the computer or laptop for later evaluation. The Air Quality Meter can be calibrated and certified according to DIN ISO. In addition it is verified according to the most recent directives (94/9/EG) and disposition on the protection against explosions (ExVo). Every two years recalibrations can be made where you choose the sensor (according to the type of gas) with which the apparatus must be equipped. You will be able to choose between 12 standard sensors, but you can also request other types of special sensors.

In addition to the traditional uses of the Air Quality Meter such as in industry, institutions and investigations, this gas meter is an economic alternative to be used by the fire brigades (with Ex- sensor for inflammable gases). The Air Quality Meter fulfills all the European and international norms, even ATEX and UL standards. Another special use is the measurement of the ozone concentration, allowing this small Air Quality Meter to be complemented with an ozone sensor. You can send us the Air Quality Meter for maintenance and recalibration, taking into account the indications of the ISO manual of your company (for example, twice a year). The Air Quality Meter can be dismounted, cleaned, and recalibrated. If a sensor can no longer be calibrated or its period of validity has already expired, you will receive the corresponding information and spare sensors can be found in our online shop. You can request the optional software to set up, calibrate, and adjust the limits of the alarm and the function of the datalogger (also optional) to read the values saved in the Air Quality Meter. This software represents the data in the form of graphs or tables and it is also possible to export them to other programs.

Notice: The combined charging station serves as interface for the data transmission, the station is used to load the storage cells of the meter of gas for “inflammable gases” + “oxygen” and of interface for the PC for the rest of the models.

Free set up level alarm, vibratory alarm, LED alarm, beeper Comfortable to use all day long Internal security makes it possible to take it on Ex-zone Loud sound Robust housing Dust and water resistant – IP 65/67

Can only be disconnected pressing two keys simultaneously LCD with backlight Internal calibration by means of the keyboard in the frontal part of the meter Datalogger function Optional software compatible with Windows to set up the meter in a fast and easy way to read the internal memory Connection to PC takes place by means of the cable of the interface

 

Technical specifications (12 gases choice)
Typical measurement ranges and alarm adjustments Parameter/Gas Symbol Range Alarm Inflammable gas CH4 0 … 100% LEL 20% LEL Oxygen O2 0 … 25% v/v 19% and 23% v/v Hydrogen sulfide H2S 0 … 100 ppm 5 ppm Carbon dioxide CO2 0 … 5% v/v 0.5 and 1.5% v/v Carbon monoxide CO 0 … 500 ppm 30 ppm Sulfur dioxide SO2 0 … 20 ppm 1 ppm Chlorine * CL2 0 … 5 ppm 0.5 ppm Nitrogen dioxide* NO2 0 … 10 ppm 1 ppm Phosphine PH3 0 … 5 ppm 0.5 ppm Ammonia NH3 0 … 100 ppm 25 ppm Hydrogen H2 0 … 1000 ppm 100 ppm Ozone O3 0 … 1 ppm 0.1 ppm
* With chlorine and dioxide of nitrogen the suction pump cannot be used to suction the air in the Air Quality Meterr Gasman II.
Sensors (sensors are exchangeable)	Response time (T90)	Life
Methane	20 s	5 years
Toxic gases	20 s	3 years
Oxygen	10 s	Minimum 1 year
Acoustic alarms	– 85 dB (a) to 1 m of distance (adjustable tone) – Tone of regular control that can be disconnected – Prolonged tone in case of low battery in the gas meter
Optical alarm	– Very clear and flashing LED – Type of alarm Indicator – Green LED with low frequency flashing as operating indicator
Vibration alarm	– Meter vibrates additionally as a complement to the optical and acoustic alarms
Autozero function	– In order to adapt the meter to different environmental conditions of measurement (always activate the clean air function)
Display	– LCD with backlight – 10 mm lines to indicate the gas value – Symbols for: Max Hold, Batt Low, calibration ground zero, alarm 1 and 2, 15 min and 8 h, alarms TWA
Measurement values memory	Adjustable memory intervals, max. capacity of 900 h prolonged with measurement quota of 1 min (depends on the gas concentration)
Power supply	Toxic gases and oxygen	– Interchangeable lithium battery – 1 year in normal use conditions
in order to load, the charging station is necessary	– 2 cells of nickel-metal hydride (reloadable), 8 … 10 hours of operative duration
Environmental conditions	-20°C … +55°C / -4°F … +131°F 0 … 99% R.H. non condensed
Housing	IP 65/67
Dimensions	90 mm x 48 mm x 24 mm / 3.5 in x 1.9 in x 0.94 in
Weight	max. 130 g / 0.29 lbs (battery included)
Norms	EN 50014, EN 50020, EN 50018, EN 55022 clase B, EN 50081-2, Ex 95C2348X, Ex 65C2349, Ex 95Y1350, IEC 801-3, EN 50082-2, IEC 61508, EN 61779, EN 50721
Authorisation	EEx ia (d) IIC T3 or T4 ATEX II 1G EEx ia IIC T4 (-20 … +55 °C) (Toxic gases and oxygen) ATEX II 2G EEx ia d IIC T4 (inflammable gases)