The principal
The Leakplotter is a vehicle conception which complies with the
requirements for an economic survey in pipe distribution networks
by driving above a burried gas pipeline.
The total system is designed in a modular way, and therefore practically
every type of base vehicle is suitable for this purpose.
Light gases escape from a leak - funnel-shaped - within the ground
and diffund through the surface as well.
While driving above the gas pipes a sample is taken and passed
on to the measuring insert. As a result leakages within the spreading
funnel are being indicated and recorded by the notebook. |
System control
- Automatic survey of connection to measuring insert
- Permanent survey of pump flow and flame status of the FID
- Permanent survey and display of pressure inside the fuel-
and test-gas bottle
- Automatic zero-point adjustment
- Manual ignition after "flame out" signal due to high gas
concentration
|
Data collection
- Permanent record of actual speed and concentration
- Display of all relevant data on the main screen such as
speed, concentration and alarm level
- Comments can be entered directly during the measurement
- Actual measured concentration displayed permanently
|
Data archive
- The viewer mode allows comparing different measurements
taken
- Recorded data are stored in a data base for subsequent treatment
- Identification of measurements by location, date and controler
- Suitable sorting to be selected
- Search function is implemented
|
Measuring insert
- Flame-Ionisation-Detector (FID), selective for detection
of hydrocarbon gases
- Oxidiser to eliminate disturbances caused by environmental
pollution or humidity
- 40% hydrogen / 60% nitrogen fuel gas and 10 ppm methane
/ synth. air test gas bottles
- Bypass and water-separator for probe inlet
- Remote operation in case of PC breakdown
- Mounted into 19" rack, installed in the vehicle
|
Suction unit
- Suction beam with 8 bells inclusive hose connection
- Dust filters in every bell to avoid damage to the FID unit
- Mounted at bumper of the measuring vehicle
- Two sections to fit into the vehicle without wasting useful
space
|
PC control unit
- Notebook meeting the latest state of the art to control
all features of the system
- Mounted on special pick-up system fixed on the base of the
vehicle
- Notebook cover can be locked to prevent theft
- Adjustable in height and to be turned for an optimal view
at the screen
|
Measuring vehicle
In general almost every car can be up-graded to become a Leakplotter,
but most of them cause problems in every day use in the towns
due to their size. With the new SMART these problems are solved.
Because of a length of only 2.50 metres and a width of 1.51 metres
this car is able to pass even smallest roads, even driving on
the pavements is possible.
The smart is available with two different engines:
A large range of features is already contained in the basic equipment.
Even more are available as accessories. For further information
please refer to the leaflet issued about this car. |
Measuring insert
- 19" rack, carrying all components, mounted on the vehicle
meeting customers requirements
- Primary Pump: 12 V operated 1800 l/h flow
- Standy-pump: 12 V operated 80l/h flow
- bypass system to take probe out of primary flow
- FID unit: sensitivity: 1 ppm methane
- Linear concentration related signal
- Display and keyboard: large, illuminated LCD display
- remote control in case of PC breakdown
|
Probe system
- Suction beam of two joints, connected with quick-coupling
- 8 rubber bells with probe filters and hose connection to
the beam
- Non corrosive mounting to vehicles bumper, adjustable in
height
- Plastic hose with additional filters and water-separator,
connected to measuring insert
|
.jpg)
.jpg)
.jpg)
.jpg)
.jpg)
.jpg)
