First Mining Drc-Zambia July/Aug 2019 First Mining DRC-ZAMBIA July-August 2019 digital | Page 21

FEATURE
and needs of the user. The CTD-Diver is
also sampling the conductivity.
The TD-Diver, Micro- and Cera-Diver
are available in the following pressure
ranges: 10 m, 20 m, 50 m and 100 m.
The CTD-Diver is available in ranges of
10, 50 and 100 m.
The latest trend in the monitoring of
groundwater is telemetry. It means that
it is possible to send data from the Diver
using a Diver-Link modem to our Diver-
Hub web portal.
Visit our website www.vanessen.com
for more information.
Efficient Mine Water
Monitoring and Management
V
an Essen Instruments has
launched the first Diver data
logger in 1995. This product was
one of the first data loggers in the world.
It combines a pressure and temperature
sensor, electronics and a battery in
one housing. Since that time, we have
produced more than 300.000 Diver data
loggers, which were used all over the
world in many projects.
Together with the Diver data logger
Van Essen introduced a free of charge
software program, nowadays known as
Diver-Office. This program is updated
at least once a year to meet up with the
demands of our customers.
Since 2009 Van Essen Instruments
developed its own telemetry system,
called Diver-NETZ. The system is based
on a single modem which through a radio
link can be connected to a maximum of
17 wells equipped with a radio module on
top. The data is then being transmitted
to the Diver-HUB web portal. The portal
allows customers also to import Diver
data collected manually and barometric
pressure form external sources.
Each data logger is a submersible
datalogger for long-term uninterrupted,
real-time water level monitoring using
a pressure sensor when submerged at
a fixed level under the water surface.
The pressure sensor measures the
equivalent hydrostatic pressure of the
water above the sensor diaphragm to
calculate the total water depth. The
Diver autonomously measures pressure
and temperature and records them in
its internal memory. The Diver is ideal
for ground and surface water level
applications.
The Diver features:
Designed for up to 10 years of use.
Solid enclosure to make borehole
deployments easier.
• Spend less time in the field with fast
download speeds
• Large memory
• Compatible with all of your existing
Diver accessories.
•
•
This Diver features either a stainless
steel (316 L) casing with a 22 mm
diameter (TD-Diver) or 18 mm diameter
(Micro-Diver) or a ceramic housing with
a 22 mm diameter for the Cera- and
CTD-Diver.
The
TD-Diver,
Micro-Diver
and
Cera-Diver samples pressure and
temperature offers different sample
methods depending upon the project
Since 2010 Aquaquest, our local
distributor in Zambia, has been
offering specialized cost effective
water development and management
advice to the water sector in Zambia
and surrounding countries. Aquaquest
works with commercial farmers, urban
and rural developers, the government
and the mining sector in identifying,
evaluating and executing groundwater
and surface water based projects.
Services include; groundwater and
surface water resource assessments,
river flow analysis, water supply
design, geophysical surveys, drilling
supervision, test pumping analysis,
irrigation requirement calculations, GIS
and mapping, topographic surveys and
water quality analysis.
Personnel
available
for
projects
include internationally trained senior
hydrogeologists and water resource
graduates, and a network of international
experts, including agricultural experts
end environmentalists.
Aquaquest
supplies
groundwater
monitoring equipment from Van Essen
Instruments to various groundwater
users within Zambia. The combination
of Aquaquest’s technical expertise and
the high quality equipment of Van Essen
Instruments allows for offering project
based solutions where equipment is
supplied, installed and configured and
where the customers are trained in its
usage and assistance with the analysis
of groundwater data is provided.
More information can be found on this
website https://www.aquaquest.info,
or call [phone]
www.fmdrc-Zambia.com
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