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The complete well measurement device consists of a singal
whistle and a measuring tape with special frame. At the end of the measuring
tape there is a chain with carabiner and locking.
Working method
The signal whistle is hollow and has a slit for the
whistle at the end. During the measurement the end dips into the water and
the water causes an exhaust of the air. Therefore an accousic whistle signal
indicates the water surface and the water level depth can directly be
measured at the measuring tape. As the water has displaced the air, the real
water level is determined as the measured depth plus the amount of empty
whistle rings (1cm each). If there is too much background noise at the
measurement point or if the water level needs to be controlled in short
periods (well tests), we recommend you to use a Water Level Meter with an
electric light signal.
Specifications:
Measuring tape: the standard measuring tape
consists of a polyamid-coated steel strap with cm-partition, 13 mm width.
Optionally a measuring tape out of non-corrosive steel strap or glass fibre
strap is available.
Picture 2: polyamid-coated steel strap and non-corrosive
steel strap
Well signal whistle: RANG'S well signal whistle
consists of a precise twisted whistle out of nickel-plated messing. The
distance between the rings (Picture 3) is exactly 1cm and the whistle gives
a precise accoustic signal as soon as it reaches water surface.
Two different sizes available: outer diameter=
26mm and length =approx. 310mm or outer diameter=15mm and length= approx.
375mm (for very small tubes only).
Special frame: (see picture 1) The special frame
consists of nickel-plated messing. With this shape the measuring-tape is
protected and the device can easily be positioned.
All parts are non-corrosive.
For the transport and protection of the well measurement
device we recommend leather bags with carrying shoulder strap.
Ordering numbers for the well measurement device with
polyamid-coated steel strap and signal whistle Nr. 22 (26 mm Ø) (Picture
1)
|
length |
10 m |
15 m |
20 m |
25 m |
30 m |
|
Ordering-Nr. |
2242 |
2243 |
2244 |
2245 |
2246 |
|
Leather bag-Nr. |
LB2 |
LB2 |
LB2 |
LB2 |
LB2 |
Ordering numbers for the well measurement device with
polyamid-coated steel strap and signal whistle Nr. 24 (26 mm Ø) (Picture
1)
|
length |
10 m |
15 m |
20 m |
25 m |
30 m |
|
Ordering-Nr. |
2442 |
2443 |
2444 |
2445 |
2446 |
|
Leather bag-Nr. |
LB2 |
LB2 |
LB2 |
LB2 |
LB2 |
Ordering numbers for RANG´S well signal whistle (Picture 3)
|
outer diameter |
27 mm |
15 mm |
|
Ordering-Nr. |
22 |
24 |
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