OPERATING MANUAL

Waterproof sheeting, regardless of whether it is bituminous or produced from other synthetic compositions, has a high electrical resistance, that is within a range of several megohms. As soon as the waterproof sheeting shows damage and becomes permeable to water, when wet through the resistance sinks to approx. 100 kiloohms and below. This can be roughly determined on the hand device with the button [Rabs].

The cables are rolled out and the base cable (black) is connected to the dripping point. For switching on the signal generator, both cable drums are connected with the yellow cable, thereby a control lamp on the drum with the coloured cables lights up. This is the electronic side with the accumulators.

To switch on the hand device one of the buttons is pushed. After 2 minutes of non-operation, the display switches off again and a button must be pushed again to obtain a display.
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The cable ends are fitted with bunch plugs and can be clamped to the sensors with the supplied crocodile clips.

The black base cable is connected with the wet dripping point in the garage or under the top floor ceiling. It must be observed at the dripping point, that a good contact is established. It has proven reliable to hammer in a nail or something similar at that point, to which the cable can be attached with the crocodile clip. Alternatively, the cable can be connected to a wet cloth, which is pressed onto the leak.

With humus coverings use the depth sensors, with pebbles and hard coverings the flat sensors.
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The bars in the display show the resistance relationship of both the sensors to the base cable. They do not show however, how far the sensors are from the leak.

If the display goes to zero during the measurement, this means, that the sensors, with ideal conditions, are roughly the same distance away from the point of the leak and the leak is located somewhere on the mean perpendicular between the two sensors.

The absolute resistance between the base electrode and one of the two measurement sensors is displayed, whereby the other sensor must not have any contact with the measuring surface. The measured value is a reference value, with which areas with low resistance can be differentiated from areas with high resistance.

With the first press, the value of the charge capacity of the battery/accu. appears in the hand device, identified by a small “i” behind the numerals. With the next press, the charging state of the transmitter in the drum unit is displayed, identified by an “E”
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Split the surface to be investigated mentally into two halves. Place the sensor with the red cable in the middle of the 1st half and the sensor with the green cable in the middle of the 2nd half. The display with button ΔR shows the bar either in the red or the green side. This means that the corresponding sensor is closer to the leak. The other half of the waterproof sheeting has no damage. Now split the half, that the device has displayed, mentally again into two equal sized areas, and again one of these will be eliminated as not damaged. Continue this procedure until your sensors have a distance of approx. 1.0 m. The point of the leak will now be located within a radius of approx. 2 m.

By moving the sensors within this 2 m you can localise the area even further. However, during this measurement you must not develop the ambition of locating the leak precisely within a centimetre. This is achieved in the most seldom of cases, because the course of the electrons does not run straight, especially in the ground. It is recommended to clear the localised area to at least 2 x 2 m, because - as experience has shown - often there are 2 or more damaged places present in this area.

During measuring it must definitely be observed, that with the depth sensors the depth of penetration is always the same. The flat sensors must always stand to the same depth in water with flooded roofs, otherwise the sensor with the better contact is preferred.

Check your measurement results by repeating the measurement two to three times. Thereby always choose another path, e.g. with the second measurement place one sensor directly in the middle and change the position of the other sensor until the display switches over. Then move the first sensor, until again the display jumps over etc.

First of all the surface to be investigated is checked in a grid with only one sensor and the setting Rabs, how the course of the resistance is along the border areas and how it behaves inside the surface. As a result it can be determined early, in which area the resistance is significantly lower.

In this smaller area, the bearing method can then be used. One sensor is moved first of all at a distance of about 2 m around the other until the display ΔR lies in the middle. From this position the mean perpendicular is derived. Subsequently, in the same manner a further position is searched for, at which the display ΔR lies in the middle. The intersecting point of the mean perpendiculars lies close to the sought after fault.
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If during measuring you notice, that from the results the path to the point of the leak no longer travels logically, then the following causes could be responsible:

* The underground has been insufficiently watered - there are dry areas in the area to be investigated. Remedy: water again.

* There is no clear point, for which the LEOPOMA V2.0 can decide. Here the setup above the waterproofing is designed in such a way, that there is another protective foil present over the waterproof sheeting, that "shadows" the point of the leak. Remedy: If possible perforate or cut open the protective foil.
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If there is only one dripping point present, then several leakage points can also lead there. For this reason several test measurements radially from the first leakage point should confirm the test result or lead to a further point. If there are several dripping points, after completing the measurement the base cable is to be moved to another dripping point. If the subsequent measurement produces the previous result again, then the first measured leak on the waterproof sheeting is also responsible for this dripping point. If another result is produced, there is a further leak.
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If the dripping point occurs on a metallic drain pipe on the ceiling, the following method is to be observed: If you attach a base line here, on the roof, with the measurement you will again and again come to the corresponding gully, because there is a good electrical connection present here. In such a case, the gully must first be masked off before watering, so that there is no longer an electrical contact present.

If after masking off, no more water emerges, then the drain or its attachment in the waterproof sheeting is leaky.

Metallic connections such as lightening conductors or sheet metal coverings can cause faulty measurement. Consequently, if necessary the water level when watering is to be kept sufficiently low, or the lightening conductor is to be disconnected for the period of the measurement.
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In the hand device either an 9V-Accu. or a battery is to be used. The accumulator is sufficient for at least 300 measuring cycles each of 2 minutes, a battery 3- to 5-times as long.

In the drum unit, heavy-metal-free Nickel-Metal-Hydride accumulators are used for the transmitter. They are charged with the supplied power unit. This has a special connector, that is to be plugged into the socket for the drum with the coloured cables. After charging is complete (maximum approx. 6 hours) the device switches to trickle charge.
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Since the method is based on a relative resistance measurement, all those persons who work with LEOPOMA V2.0 will develop their own strategy, make their own experience. We would be grateful if you could let us share in this and allow us to pick up on your suggestions.

We will continue to develop LEOPOMA V2.0 further, in order to constantly improve the benefits of LEOPOMA V2.0 for our customers.

If the buttons ΔR and Bat. is pressed simultaneously, a function-test runs out: All signs of the Displays are first shown, then the Versions-Nummer appears the started software and the sprint-beam goes through all positions. Three beep sound to the end.

Into the checkup of the radio-transfer, the buttons ΔR und Rabs pressed simultaneously.? With each transfer of a Messsequenz, a beep is passed out. If the distance becomes too big between stations and recipients, there are sound-packers.
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The Fa. PoMa Wolfgang Pöllinger and Eberhard Maschke GbR, Schwarzwaldstr. 11, 75173 Pforzheims explains in sole responsibility, that the product covers Leopoma V2.0 leak-orientation-appliance on that itself this explanation, agrees with the following norms and guidelines: