Page 1-1
Rev. 0
USERS’ MANUAL
Model TES-PU-20/26V
Uplift pressure measuring system
Doc. # WI 6002.14
Printed 10/11/98
Страница 1: ...Page 1 1 Rev 0 USERS MANUAL Model TES PU 20 26V Uplift pressure measuring system Doc WI 6002 14 Rev 0 Printed 10 11 98 ...
Страница 2: ...of the drainage system below the dam To study the effectiveness of foundation grouting 1 1 Typical installation in a concrete dam Figure 1 1 1 2 Uplift pressure measurement The uplift pressure is measured mechanically by using a Bourden pressure gage or electronically by using a vibrating wire uplift pressure meter and a digital vibrating wire indicator The uplift pressure measuring device consist...
Страница 3: ...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...
Страница 4: ... and the following table Sl Description Qty 1 Reducer 2 x1 1 2 1 GI pipe 350 mm 1 3 Reducer 1 x 1 4 tee 1 5 Male nipple 50 mm 2 6 Male nipple 150 mm 1 7 Wheel valve 10 kg cm 2 Zalota Hawa 1 8 GI Socket 1 9 Brass hex gage adopter 1 10 Teflon washer 1 11 Dial pressure gage 1 The installation is very simple and does not need a detailed description 2 1 Tools accessories The following tools and accesso...
Страница 5: ... drilled from the gallery down to the level upto which the drain pipes have to be installed Drain pipes extend below the dam both on the upstream and downstream side The other end of the pipe is brought into the gallery where it is connected to an uplift pressure meter through other acces sories listed below Sl Description Qty 1 Reducer 2 x1 1 2 1 GI pipe 350 mm 1 3 Reducer 1 x 1 4 Tee 1 5 Male ni...
Страница 6: ...ed on top of an uplift pressure meter The height from the bottom of the uplift pipe to where the meter is mounted should be added to the reading of the meter to get the correct pressure at the bottom of the uplift pipe 3 2 2 Operating principle The vibrating wire pressure sensor basically consists of a magnetic high tensile strength stretched wire one end of which is anchored and the other end fix...
Страница 7: ...emperature induced frequency changes and the correlating data for this is provided in the test report see 3 5 Thermistor may also be used to monitor the temperature A tripolar plasma surge arrestor inside the transducer housing protects the vibrating wire pluck and read coils from electrical transients such as may be induced by direct or indirect lightning strikes 3 2 4 1 Stainless steel body The ...
Страница 8: ...ded with each trans ducer Refer to the model TES DI 51V instruction manual WI 6002 26 for entering the transducer calibra tion coefficients The gage factor and the factory zero reading frequency can directly be taken from the test certificate for setting up transducer coefficients in the read out unit The test certificate also gives the factory zero reading in frequency 2 for use with transducers ...
Страница 9: ...ing system Users Manual Rev 0 Page 3 5 The TES DI 51V indicator is housed in a splash proof resin molded enclosure with weatherproof con nectors for making connections to the vibrating wire transducer and the battery charger ...
Страница 10: ...25 6625 6625 6630 5 2 0 6335 6335 6335 6336 0 3 0 6037 6037 6037 6041 4 4 0 5743 5743 5743 5746 4 5 0 5451 5451 5451 5451 0 Non linearity 0 34 fs Gage factor 2 375E 02 kg cm f 2 Temperature zero shift C 0 023 C fsd Readings at the time of shipment Date Mar 7 1998 Factory zero reading f f 2 2630 Hz 6917 x 10 3 Hz 2 Temperature 32 C Thermistor 2190 Ohm Atm Pressure 74 1cm Hg Coil resistance 130 Ohm ...
Страница 11: ...1 10 31K 1 1664 39 101 0K 40 9796 0 1598 40 94 48K 39 9310 1 1535 41 88 46K 38 8851 2 1475 42 82 87K 37 8417 3 1418 43 77 66K 36 8006 4 1363 44 72 81K 35 7618 5 1310 45 68 30K 34 7252 6 1260 46 64 09K 33 6905 7 1212 47 60 17K 32 6576 8 1167 48 56 51K 31 6265 9 1123 49 53 10K 30 5971 10 1081 50 49 91K 29 5692 11 1040 51 46 94K 28 5427 12 1002 52 44 16K 27 5177 13 965 0 53 41 56k 26 4939 14 929 6 54...
Страница 12: ... 23 25 and 30 32 Taparia 4 7 Cable joint housing refer figure 3 2 4 8 Hacksaw with 300 mm blade 4 9 Cable Cutter 4 10 Surgical blade with holder 4 11 Wire Stripper Taparia 4 12 Pliers 160 mm Taparia 4 13 Locking nut spanner 4 14 Pouring funnel 4 15 Stainless steel rod 6 mm φ 150 mm length 4 16 Spatula 4 17 Rotary tin cutter 4 18 Fixture for jointing upto six uplift pressure meters refer figure 4 1...
Страница 13: ...etone for cleaning the terminals as it may damage the glass to metal seal Acetone should be used to clean the other portions of the sensor 5 1 2 Check the working of the sensor as follows The coil resistance measured by a digital multimeter between the red and black pins should lie between 120 140 Ohm In case thermistor is used determine resistance at the room temperature from thermistor temperatu...
Страница 14: ...rs every 5m by the use of stainless steel tags tied by stainless steel wire stamped with appropriate con crete pressure cell numbers Alternatively plastic tabs are also available Temporary identifi cation is possible by writing serial number of the sensor its code number and the location at which it is installed on a strip of paper placing the strip on the cable and covering it with a transparent ...
Страница 15: ...ERAL SYSTEM DESCRIPTION 3 1 3 2 VIBRATING WIRE PRESSURE SENSOR 3 2 3 2 1 Manufacturing range 3 2 3 2 2 Operating principle 3 2 3 2 3 Specifications 3 3 3 2 4 Description 3 3 3 3 TAKING READINGS WITH THE MODEL TES DI 51V VIBRATING WIRE INDICATOR 3 4 3 4 SAMPLE TEST CERTIFICATE 3 6 3 5 THERMISTOR TEMPERATURE RESISTANCE CORRELATION 3 7 4 TOOLS ACCESSORIES REQUIRED FOR INSTALLATION OF VW SYSTEM 4 1 5 ...