With man’s increasing need to
consume water, need to measure water in open channels has also increased. Open
channels are those natural and man-made structures through which water flows
with a free surface. For open channels a number of different and varied methods
have been developed to measure the flow of water. Modern mechanical and
electronic flow meters have made the continuous measurement of open channel
flows possible.
Pune Techtrol offers solutions for measuring “Loss of
Head” (differential level) between upstream and downstream of the
filter screen in open channels of WTP’s / ETP’s, filtration stations, water
management systems, etc.
Techtrol’s ultrasonic loss of head level system
– LHUS is widely used in water canals, water treatment plants, sewage pumping
and filters stations. It consists of a pair of ultrasonic transmitters and
a differential level controller. The transmitters are installed on either side
of the filter screen to translate the level change into an analog signal by
using time of flight principle. The relative difference between the two signals
from upstream and downstream is processed by the evaluation unit and displayed
as “Loss-of-Head” digitally.
Salient Features
·
Ultrasonic, Non-contact
measurement.
·
Easy to install and operate.
·
Minimal maintenance due to
non-moving parts
·
Displays differential level
·
Easy calibration through keypad
·
Option of Re transmission 4-20
mA for DCS/PLC
·
Two potential free change-over
relays can be configured as Single Point or Pump Control/Screen Control Alarm
for either Low Head, High Head or Difference.
System Operation
The system (Fig 1) consists of
two Ultrasonic Transmitters (Ultratrol), which consist of ultrasonic transducer
integral with microcontroller based electronics housed in an enclosure.
Ultrasonic pulses emitted from the transducer to the target are reflected back
and sensed by the electronics to provide 4-20mA current output. The two
Ultrasonic Transmitters are mounted on the upstream and downstream side of the
bar screen placed in an open channel. These transmitters are connected to
Differential Level Controller (TDLC) with relay set at a predefined value. The
level difference between upstream and downstream side is measured by the TDLC
to actuate a preset relay.
TDLC can also be provided with
4-20mA (re- transmission) to DCS / PLC Screen Panel for further control and
automation.
Applications:
“Techtrol” Loss of head
ultrasonic system-LHUS is suitable for use in Waste Water, Sewage,
Effluent Treatment Plants, Open Channel, and Water filtration plant –filter bed
level.
About
Us
Pune Techtrol Pvt. Ltd. has evolved from a six
employee enterprise, in 1984 to become a premier Indian company recognized for
quality level
measurement and process automation systems for liquids & solids. We are
an ISO 9001 2008 Company located in the Industrial belt of Pune, around 180 kms
from Mumbai, the commercial capital of India. Pune is famous globally for
quality instrumentation industries with ample skilled & talented work
force. ‘Techtrol’ is recognized as most reliable & trusted brand,
delivering quality products unsurpassed in terms of accuracy, workmanship,
performance, safety & ease of installation, providing long uninterrupted
service in wide & varied industrial applications. Our products are designed
& engineered for optimal performance and with practical experience gained
over last several years has equipped us, to meet the most demanding user
requirements.
Our technical support to customer starts from the enquiry stage,
through proper selection & guidance, right up to supervision of
installation & calibration at site. This is accomplished through large
network of experienced representatives & distributors backed by our team of
enterprising sales & service engineers.
Our people are our strength and as such our prime philosophy is
to respect them as individuals with inherent skills, to be channelized to
create value for our society & country. We believe that, our reputation and
our product quality & services are a result of their team work and as such,
it has been our endeavour to train them continuously for higher multi-skills
and better understanding of our products & customer expectations of us.
Contact Us
Pune Techtrol Pvt.Ltd
S-18, MIDC Bhosari,
Pune - 411026,India
Phone No- 020 66342900
Email Id- ho@punetechtrol.com
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