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Gas Meter Gasman N
unique gas meter for the personal protection
with datalogger, 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)
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This gas meter is a unique gas meter which protects against a specific gas, inflammable or toxic. The gas meter Gasman warns with a tone of penetrating alarm and an optical signal (useful in case when there are loud noises in the surroundings) of the existence of dangerous gas concentrations and it shows on the screen the value of the gas measurement. In addition with this gas meter you are able to save measurements and transmit them to the computer for evaluation. For that, it is necessary to rely on 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 900 hours. The data saved in the apparatus can at any time be transferred to the computer or the laptop for later valuation. The 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). Besides, every year two recalibrations can be made. 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 gas meters 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 gas meter fulfills all the European and international norms, even ATEX standards.
Another special use is the measurement of the ozone concentration. For that reason this small gas meter can be complemented with an ozone sensor. If you have any questions about the gas meter, see the technical data below or contact us: +44 ( 0 ) 2380 98703 0. Our technicians and engineers will be happy to advise you on this gas meter and on any product of regulation and control systems, measuring instruments or the scales and balances.
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- 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
- OK sound
- Robust housing
- Dust and water resistant - IP 65/67
- LCD with backlight
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- Can only be disconnected pressing two
keys simultaneously
- 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
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The gas meter Gasman N has a vibratory module that warns even in very noisy atmospheres by means of vibrations.
If the gas meter is equipped with the function of datalogger and you wish to transmit the saved values in the meter to a PC, you will need the combined charging station (charging station and inter face simultaneously).
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The suction pump to suction gases can be acquired optionally. This equipment is used when it is necessary to determine gases in zones with very difficult access.
Attention: the aspiration of chlorine, of nitrogen dioxide and ozone is not allowed in difficult access zones .
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| 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 |
| Hidrogene |
H2 |
0 ... 1000 ppm |
100 ppm |
| Ozone |
O3 |
0 ... 1 ppm |
0.1 ppm |
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| * With chlorine and dioxide of nitrogen the suction pump cannot be used to suction the air in the gas measurer Gasman II. |
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Sensors
(sensors are exchangeable)
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Response time (T90)
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Life
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Methane
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20 s
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5 years
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Toxic gases
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20 s
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3 years
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Oxygen
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10 s
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minimum 1 year
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Acoustic alarms
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- 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.
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Optical alarm
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- very clear and flashing LED
- Type of alarm Indicator
- Green LED with low frequency flashing as operating indicator
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Vibration alarm
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- meter vibrates additionally as a complement to the optical and acoustic alarms
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Autozero function
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- in order to adapt the meter to different environmental conditions of measurement (always activate the clean air function)
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Display
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- 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
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Measurement values memory
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Adjustable memory intervals, max. capacity of 900 h prolonged with measurement quota of 1 min (depends on the gas concentration)
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Power supply
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Toxic gases and oxygen
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- interchangeable lithium battery
- 1 year in normal use conditions
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in order to load the charging station is necessary.
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- 2 cells of nickel-metal hydride (reloadable), 8… 10 hours of operative duration.
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Environmental conditions
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-20 ... +55 °C/0 ... 99 % R.H. non condensed
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Housing
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IP 65/67
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Dimensions
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90 x 48 x 24 mm
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Weight
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max. 130 g (battery included)
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Norms
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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
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Autorisation
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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)
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PC interface
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You can request the optional software to set up, calibrate and adjust the limits of the alarm and the function of datalogger (optional too) to read the values saved in the gas meter. This software represents the data in form of graphs or tables It is possible to export them to other programs.
Please pay attention:
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.
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Maintenance and recalibration
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You can send us the gas meter for maintenance and recalibration, taking into account the indications of the ISO manual of your company (for example twice a year).
The gas meter can be dismounted, cleaned and recalibrated. If a sensor no longer can be calibrated or its period of validity has already exprired, you will receive the corresponding information. The spare sensors will be found in our online shop.
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Delivery content:
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1 x Gas meter Gasman N (please choose required Gas), 1 x mounting clips, 1 x Battery or Accumulator (depending on the Gas), 1 x User manual
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Aditional
- Spare gas sensor for this meter upon request
- Car accumulator (12 V, especially useful for fire brigades)
- Two anual revisions and callibration* (or according to your needs/factory calibration certificate included) |
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- Software (to programme and calibrate the meter)
-RS-232 Interface cable/USB Adapter
Attention: if you wish to use the previous software and the interface cable, this interface will be necessary. Read the following section.
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- Interface
The interface has two functions:
1. The transmission of data to the PC (in combination with the software and the cable of data)
2. It serves simultaneously as a charger for the internal accumulador. If you have chosen the meter without accumulator, that is with batteries and you wish to transfer data, you will need the station interface. The loading function is deactivated in an automatic way.
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- Suction pump
This equipment of the hand pump is used if it is necessary to determine gases in zones of very difficult access or if the conditions of the place of measurement cannot be purged of gas, as it usually happens before leaving a mine to exclude personal risks. The gas meter along with the suction pump equipment and the CO sensor can be used to locate people. Attention: the sensors for chlorine, ozone and nitrogen dioxide cannot be used in combination with the equipment.
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* Calibration/Recalibration
Sensor for inflammable gases:
A gas meter that is used to detect 0 - 100% LEL is calibrated almost always to methane. The rest of inflammable gases follow this pattern. Actually this procedure is valid for 99% of applications. The correspondence with the rest of inflammable gases or the detection has therefore a minimum imprecision. If you wish to have your gas meter calibrated regarding another determined gas, let us know when you make an order. Also let us know if you require a recalibration.
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| Here you will find an overview of all the measuring instruments available at PCE Instruments. |
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Contact:
PCE Instruments UK Limited
Units 12/13 Southpoint Business Park
Ensign Way, Southampton
United Kingdom, SO31 4RF
Phone: +44 ( 0 ) 2380 98703 0
Fax: +44 ( 0 ) 2380 98703 0
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