Gas detectie systemen

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Tracer



Tracer – Leak detection in the ppb range.

Application
The Tracer has its strength where other methods of leak detection would fail, because they have cross sensitivities to other gases. Such selectivity is requested in plants using or producing extremely toxic substances. These plants always have a „Zero Emission Policy“ in force. Here high sensitivity in combination with good selectivity is required.

Sensor technology
Electrochemical sensors can be designed to be very selective and sensitive at the same time by the right material choice for electrodes and electrolyte. These sensors will not respond to less dangerous substances that might be around in the plant such as hydrocarbons, carbon monoxide, hydrogen or even humidity. A detection limit of Phosgene as low as 2 ppb is no problem for this sensor technology!

The Tracer is capable to detect even the smallest traces of toxic gases. The detection limit is in the low ppb range depending on the substance to be detected. As a leak detector might be exposed to very high concentrations, it must not be used as a personal monitor. To avoid it being abused as such, it displays no concentration, but only a dimensionless figure or a bar graph.

Using the Tracer
To locate a leak, move the sample intake along the surface to be inspected. The measured value will increase when a leak is approached. The display can be selected between bar graph and digital. A control tone and LED will increase in frequency with increasing measured value similar to a Geiger counter. The Tracer will protect itself from poisoning. If the measured value goes out of range the pump will go off and start again when it drops below 95% of the range.

The graphic display is easy to read. At night or in dark places in the plant a backlight can be switched on. Consumables such as sensor, filter or sampling probe can easily be replaced without tools.

Field test results – the high range version
The first tests in plants have proven that an ultra-low measuring range does not always do the job. Therefore Compur Monitors has completed the Tracer product range by a new HIGH range version. It uses an orifice in front of the sensor increasing the measuring range by a factor of 20. The user can do that without changing the amplifier adjustment. All it takes is just replacing the LOW range sensor by a HIGH range sensor and so cover a measuring range from the low ppb range up to the two digit ppm level!

Standard Version
The Tracer comes with 4 AA size disposable batteries. This version is not explosion proof.

Ex Version
Upon request the tracer can be delivered in an explosion - proof version with rechargeable batteries.

Technische specificaties


Principle of measurement
Response time
Operating temperature
Storage temperature
Humidity
Flow
Operation Time

Ex approval
Scope of application
Certificate
Battery
Charger

Power consumption
Dimensions (HxWxD)
Weight
Housing material
EMV: EN 61326: 1997 (+A1/A2)
Electrochemical
< 2 s
-20°C - +40°C short term +60°C
-20°C - +40°C short term +60°C
0 - 99 % r. H. non condensing
200 ml / min
Non Ex: 72 h With rechargeable batteries: 2 h per charge
ATEX EEx ia IIC T4 (Ex version only)
II 2 G (Ex version only)
BASEEFA 03 ATEX 0742 (Ex version only)
NiMH (Ex version only)
In: 100 - 240 VAC, out 9 VDC (Ex version only)
20mA, with backlight on: 140mA
450x60x50mm
0,55 kg
Conductive PP
Emission threshold B and general impact protection
The portable gas warning system for toxic gases and oxygen.

Downloads
Handleiding (Duits-Engels)
Handleiding EX (Duits-Engels)
Brochure (Engels)


Gassen:
COCl2
HCN
Cl2
NO2
ClO2
H2S