H-LEVEL _ H-LEVEL LIQUID LEVEL SYSTEM SETTLEMENT GAUGES

Size: px

Start display at page:

Download "H-LEVEL _ H-LEVEL LIQUID LEVEL SYSTEM SETTLEMENT GAUGES"

Hector Briggs
6 years ago
Views:

1 _ LIQUID LEVEL SYSTEM SETTLEMENT GAUGES

LIQUID LEVEL SYSTEM The H-Level is an automatic system for long-term monitoring of differential settlements in buildings, tunnels, and other civil structures.

2 LIQUID LEVEL SYSTEM The H-Level is an automatic system for long-term monitoring of differential settlements in buildings, tunnels, and other civil structures. The system consists of a series of H-Level gauges that are connected hydraulically to a tank located at a stable location. Each H-Level gauge includes a high resolution pressure sensor that monitors the head of liquid resulting from the difference in elevation of the gauge and the tank. APPLICATINS Buildings Tunnels Compensation grouting projects Excavations Historical structures Bridges FEATURES Available with both digital or analogue output High accuracy and performance Automatic compensation for barometric pressure No need to install each gauge at the same elevation Fieldstat software for enhanced data analysis Meet the essential requirements of the EMC Directive 2014/30/UE LIQUID LEVEL SYSTEM 2

DIGITAL SPECIFICATINS 110 mm 95 mm PRDUCT CDES 0HLEV050D00, 0HLEV100D00 sensor housing Description Digital H-Level system is composed by the yellow pressure gauge and the digitalizing box (D-BX),

System protection: IP65 Technology Range capacitive pressure sensor 500 mm H 2 (20 ) or 1000 mm H 2 (39 ) (2000 mm on request) 140 mm 95 mm utput signal (1) RS-485, Modbus RTU protocol Gauge

3 DIGITAL SPECIFICATINS 110 mm 95 mm PRDUCT CDES 0HLEV050D00, 0HLEV100D00 sensor housing Description Digital H-Level system is composed by the yellow pressure gauge and the digitalizing box (D-BX), connected with 500 mm cable. System protection: IP65 Technology Range capacitive pressure sensor 500 mm H 2 (20 ) or 1000 mm H 2 (39 ) (2000 mm on request) 140 mm 95 mm utput signal (1) RS-485, Modbus RTU protocol Gauge sensitivity 500 mm H mm H mm (0.0012") H mm (0.0024") H 2 connector 97 mm System accuracy (2) FS = 500 mm H 2 FS = 1000 mm H 2 ±0.10% FS (< ±0.5 mm H 2 on whole range) ±0.08% FS (< ±0.8 mm H 2 on whole range) 500 mm connecting cable D-Box Temperature effect (-20 C to + 60 C) 500 mm H mm H 2 < ±0.05 mm / C (0.002" / C) < ±0.15 mm / C (0.006 / C) Non-destructive overpressure Temperature sensor 120 kpa (17 psi) embedded in the D-BX (accuracy ±1 C) 60 mm perating temperature range -20 C to +80 C (-4 to 176 F) Power supply V (suggested 24 V) Average power consumption Hydraulic tube D / ID 6 24 V V 12 mm / 10 mm (0.5 / 0.4") polythene 43 mm Air compensation tube D/ID 8 mm / 6 mm (0.3 /.24") polythene Signal cable 0WE104SG0ZH and 0WE606IPDZH Max. distance to datalogger (3) 1000 m (for more information see FAQ#77) (1) D-BX is configurated as default output mm H 2. At order time, Customer can specify other units, such as: bar, mbar, atm, psi, Pa, kpa, MPa, mmh 2 (d, mh 2, inh 2, fth 2, mmhg, cmhg, inhg, Kg/cm 2, Kg/m 2, lb/in 2, lb/ft 2, N/cm 2, N/m 2, t/m 2, t(uk)/ft 2, t(usa)/ft 2. Sisgeo Modbus protocol manual is available for download at this page. (2) The system is intended the yellow gauge + D-Box. The system accuracy includes linearity, hysteresis and repeatability on the whole range. (3) Refer to FAQ section of Sisgeo website: /faq PHYSICAL FEATURES SENSR HUSING Dimensions (WxHxD) 65 x 95 x 70 mm (2.6 x 3.7 x 2.8") Sensor mechanical vertical adjustment 40 mm Housing material acetal resin 46 mm 6 mm 66 mm 105 mm 120 mm D-BX Dimensions (WxHxD) Housing material 120 x 60 x 52 mm (4.7 x 2.4 x 2.0") aluminium LIQUID LEVEL SYSTEM 3

ANALGUE SPECIFICATINS 110 mm 95 mm PRDUCT CDES 0HLEV050000, 0HLEV100000 Technology capacitive pressure sensor Range 500 mm H 2 (20 ) or 1000 mm H 2 (39") (2000 mm on request) utput

0024") H 2 140 mm 95 mm Gauge accuracy (1) range 500 mm H 2 range1000 mm H 2 Temperature effect range 500 mm H 2 range 1000 mm H 2 < ±0.15% FS (< ±0.75 mm H 2 on whole range) < ±0.

006" / C) 110 mm connector 97 mm Non-destructive overpressure 120 kpa (17 psi) 65 mm Temperature sensor thermistor embedded (accuracy ±0.

8") 67 mm Mechanical vertical adjustment 40 mm Housing material and protection Acetal resin, IP65 Hydraulic tube D / ID Air compensation tube D/ID 12 mm / 10 mm (0.5 / 0.

distance to datalogger (2) 0WE104SG0ZH 1000 m (for more information see FAQ#77) barometric 170 mm (1) including linearity, hysteresis and repeatability on the whole range.

4 ANALGUE SPECIFICATINS 110 mm 95 mm PRDUCT CDES 0HLEV050000, 0HLEV Technology capacitive pressure sensor Range 500 mm H 2 (20 ) or 1000 mm H 2 (39") (2000 mm on request) utput signal Gauge sensitivity range 500 mm H 2 range 1000 mm H ma current loop, hm (thermistor) 0.03 mm (0.0012") H mm (0.0024") H mm 95 mm Gauge accuracy (1) range 500 mm H 2 range1000 mm H 2 Temperature effect range 500 mm H 2 range 1000 mm H 2 < ±0.15% FS (< ±0.75 mm H 2 on whole range) < ±0.10% FS (< ±1.00 mm H 2 on whole range) < ±0.05 mm / C (0.002" / C) < ±0.15 mm / C (0.006" / C) 110 mm connector 97 mm Non-destructive overpressure 120 kpa (17 psi) 65 mm Temperature sensor thermistor embedded (accuracy ±0.5 C) 3 mm perating temperature range -20 C to +80 C (-4 to 176 F) Power supply Housing dimensions (WxHxD) V DC 65 x 95 x 70 mm (2.6 x 3.7 x 2.8") 67 mm Mechanical vertical adjustment 40 mm Housing material and protection Acetal resin, IP65 Hydraulic tube D / ID Air compensation tube D/ID 12 mm / 10 mm (0.5 / 0.4") polythene 8 mm / 6 mm (0.3 /.24") polythene 85 mm Signal cable Max. distance to datalogger (2) 0WE104SG0ZH 1000 m (for more information see FAQ#77) barometric 170 mm (1) including linearity, hysteresis and repeatability on the whole range. (2) Refer to FAQ section of Sisgeo website: /faq REFERENCE TANK 200 mm Fluid in the tank establishes the level for all the gauges in the system. Barometric pressure is transmitted to the system through a secondary enclosure that is fitted with a membrane filter and dessiccant to eliminate humidity. PRDUCT CDE 0HLEV27SERB Material stainless steel (tank), plastic (barometric ref.) 302 mm tank Tank dimensions (WxHxD) Tank capacity Barometric ref. dimensions (WxHxD) 200 x 302 x 102 mm about 6 litres 85 x 170 x 66 mm LIQUID LEVEL SYSTEM 4

5 PERATING PRINCIPLE The H-Level is an automatic system for long-term monitoring of differential settlements in buildings, tunnels, and other civil structures. The system consists of a series of H-Level gauges that are connected hydraulically via fluid-filled tubing to a tank that is located at a stable location. A separate airfilled tube connects each gauge to an air intake located near the tank. Each H-Level gauge includes a high resolution pressure sensor that monitors the head of liquid resulting from the difference in elevation of the gauge and the tank. The gauges report a higher head of fluid (higher pressure) if settlement occurs and a lower head of fluid (lower pressure) if heave occurs. The air-filled tube connected to each gauge eliminate error due to changes in barometric pressure. In addition, an H-Level gauge located near the reservoir is used to control for thermal effects. If freezing temperatures are expected, a de-aired, anti-freeze liquid can be used in the tubing and reservoir. The H-level monitoring system can be connected to the MNIAlog data acquisition system where both pressure (level) and temperature are stored for processing. level barometric tank Measured pressure last H-Level gauge hydraulic tube bleed valve first H-Level gauge gauge IP67 connector air compensation tube lower sensor position RS-485 termination resistance RS-485 digital signal cable VERTICAL DISPLACEMENTS ZNE F INFLUENCE STABLE AREA LIQUID LEVEL SYSTEM 5

6 EXAMPLE F TUNNEL APPLICATIN - DIGITAL SYSTEM EXISTING RAILWAY TUNNEL barometric tank 0WE104SG0ZH signal cable barometric comp.tube hydraulic line with insulation Digital H-Level gauge gauge junction box TUNNEL IN CNSTRUCTIN 0WE606IPDZH cable EXCAVATIN ZNE F INFLUENCE LIQUID LEVEL SYSTEM 6

7 EXAMPLE F BUILDING APPLICATIN - ANALGUE SYSTEM Reference gauge Hydraulic line with insulation Settlement gauge EXCAVATIN ZNE F INFLUENCE EXCAVATIN LIQUID LEVEL SYSTEM 7

8 ACCESSRIES AND SPARE PARTS HYDRAULIC TUBING 0TUPE WATER-GLICERINE MIX 1000LIGL100 HYDRAULIC CIRCUIT INSULATIN 1000CPE300 Polythene tube for hydraulic connection of the H-Level gauges. 12 mm D, 10 mm ID. Recommended fluid for H-Level circuit. It is a mixture of 50% glycerine and 50% water, chemically inert, allowing operation to -20 C. Insulated protective tube for hydraulic tubing. Recommended when tubing is exposed to large temperature excursions. 3m length. SATURATIN DEVICE 0D422SAT200 Saturation device for H-Level hydraulic circuit, capacity 20 liters, max pressure 5 bars. Highly recommended. AIR CMPENSATIN TUBE 0TUPE Air polyethylene tube for transmitting barometric pressure throughout the system. D 8 mm, ID 6 mm. TUBES SPLICING KIT 0HLEVKIT0JN Hydraulic splicing kit for up to 5 liquid and air compensation tubes. SIGNAL CABLE FR GAUGES 0WE104SG0ZH 4 22-AWG wires in 2-twisted pairs, with aluminium/polyester shield and LSZH jacket. 4.7mm diameter. DIGITAL JUNCTIN BX 0EPD023IPID Junction box for chains of digital H-Levels, composed by IP67 plastic box, wiring electronic board and 3 cable glands. DIGITAL CABLE 0WE606IPDZH LSZH cable for connecting digital instruments chain from junction box up to MNIAlog datalogger. SPARE CNNECTR 0ECN05FV00 IP67 spare connector to be installed on signal cable for H-Level jointing. RESISTANCE ENDING DEVICE 0ETERMRESIT Termination resistance with connector, needed to close every digital H-Level chain. For more detail see FAQ#076. SPARE DIGITAL SENSR 0HLEV000V00 Spare digital H-Level sensor housing, including gauge and hydraulic connectors. SPARE D-BX 0EDBX48500 Spare digitalizing box for digital H-Level, supplied with 500 mm signal cable and connector. READABLE BY Refer to separate datasheets for further information. All the information in this document is the property of Sisgeo S.r.l. and should not be used without permission from Sisgeo S.r.l. We reserve the right to change our products without prior notice. The datasheet is issued in English and other languages. In order to avoid discrepancies and disagreement on the interpretation of the meanings, Sisgeo Srl declares that English Language prevails. SISGE S.R.L. Via F. Serpero 4/F Masate (MI) Italy Phone Fax info@sisgeo.com TECHNICAL ASSISTANCE SISGE offers customers and phone assistance to ensure proper use of instruments and readout and to maximize performance of the system. For more information, us: assistance@sisgeo.com LIQUID LEVEL SYSTEM 8

High-speed pressure sensor Model CPT6140

Calibration technology High-speed pressure sensor Model CPT6140 WIKA data sheet CT 25.11 Applications Testing technology Calibration technology Laboratories and maintenance shops Leak and burst applications