Users’ Manual
Uplift pressure measurement system
Page 1-2
Rev. 0
Mechanical measurement is economical. However, one has to go into the gallery to take the readings.
It should also be noted that the vibrating wire uplift pressure meter is a much more reliable device than
a Bourden type pressure gage and has a better resolution and accuracy.
1.2.2. Elect ro n ic m et h o d
The development of vibrating wire sensor introduced a reliable and fast method of taking uplift pres-
sure readings electrically. This enables remote reading as well as data storing in case the output is
connected to a data acquisition system. The cable is carried from the sensor tip to the read-out unit or
data logger and is protected against any possible damage during construction. For details of vibrating
wire sensors and other vibrating wire instruments manufactured by TRITECH, refer to data sheet
1087-99w.
The electronic uplift pressure meter is installed with the necessary length of cable jointed with it. Prop-
er junction boxes are available to take the signals to any distant location through multi core cables. The
mounting is very simple as the meter is surface mounted and does not require to be embedded.
1.3.
C o n v en t io n s u sed in t h is m an u al
WARNING!
Warning messages calls attention to a procedure or practice, that if not properly followed
could possibly cause personal injury.
CAUTION:
Caution messages calls attention to a procedure or practice, that if not properly followed
may result in loss of data or damage to equipment.
NOTE:
Note contains important information & is set off from regular text to draw users’ attention.
The user’s manual is intended to provide sufficient information for making optimum use of uplift pres-
sure measurement assembly in your applications. It covers description of the vibrating wire uplift pres-
sure meter and its accessories, procedure for installation & maintenance of the sensor, method of tak-
ing observations and recording data. The description of the mechanical system is also covered.
To make this manual more useful we invite your valuable comments and suggestions regarding any
additions or enhancements. We also request you to please let us know of any errors that you may find
while going through this manual.
1.4.
H o w t o u se t h is m an u al
This manual is divided into a number of sections, each section containing a specific type of information.
The list given below tells you where to look for in this manual if you need some specific information. It is
however recommended that you read the manual from the beginning to the end to get a thorough grasp
of the subject. You will find lots of unexpected information in the sections you feel you may skip.
For measurement by Bourden gage
: See § 2 ‘Mechanical measurement’
For understanding principle of vibrating wire uplift pressure meter:
See § 3.2.2. ‘Operating principle’.
For installation of VW system: See § 5 ‘Installation of vibrating wire system’.
