_ H-LEVEL - SISGEO North America
Contents
1. USER MANUAL ls LEVEL INDEX INTRODUCTION Page 4 DESCRIPTION Page 5 PRELIMINARY CHECKS Page 6 INSTALLATION Page 7 TAKING MEASUREMENTS Page 13 DATA MANAGEMENT Page 13 TROUBLESHOOTING Page 14 MAINTENANCE Page 15 APPENDIX Page 16 WWW SISGEO COM H LEVEL_EN_00_14 Page 2 of 16 ne LEVEL Notes on the use of product For safe and efficient use of the product please read carefully the following instructions before starting any operation Any use of the product other than the one described in this manual shall be considered the user s full responsibility The same applies for any unauthorized modifications In addition to the hereby listed standards the user must comply with the provisions of the current legislation regarding personal safety and health together with all other persons in the workplace SISGEO is not responsible for any accident breakdown or other problems due to lack of knowledge and or non compliance with the requirements contained in this manual Check that the product has not been damaged during the transport Verify that the package includes all items as well as any requested optional accessories if anything is missing please promptly contact SISGEO The user must strictly follow all the operations described in this manual Maintenance or repair of the device is permitted only by authorized operators These operators must be physically and intellectually suitable For information abou2. 7 e use a Suitable container and connect it to the valve 7 e put the container at a level that allows to fill in the circuit Do not exceed 10m head e open the valve 7 e drain the liquid from the last settlement gauge e when the whole circuit is filled and there are no air bubbles close the connector with the cap supplied see next paragraph e close the valve 7 and disconnect the container e drain the settlement gauge as explained next WWW SISGEO COM H LEVEL_EN_00_14 Page 9 of 16 ne LEVEL Using the saturator 3 1 gt lt 2 Open both valves 1 2 Remove the plastic cap 3 4 y 1 gt Fill the tank using a funnel 4 with the mix necessary to fill the whole circuit It is important to fill the circuit in a single time Close the valves 1 2 and connect the compressor 5 Turn on the compressor 5 and reach a pressure of about 4 bar Do not disconnect the compressor WWW SISGEO COM H LEVEL_EN_00_14 Page 10 of 16 LEVEL 5 Put the saturator with the valves upside down Connect the saturator to the tank 6 using the 10 12 tube 7 6 gt gt Open carefully the valve 2 Do not exceed 1 bar of output E a pressure 8 7 gt f A Attention a pressure too high m could irremediably damage the settlement gauges Let the liquid drain from the last E a E settlement gauge 9 to eliminate any i air bubbles within the circuit co Put
3. other settlement gauges The vertical movement of a settlement gauge modifies the level of the head between the tank and the settlement gauge creating a pressure variation It is possible on request and for particular applications to ask for the horizontal installation of the settlement gauge WWW SISGEO COM H LEVEL_EN_00_14 Page 4 of 16 AS LEVEL DE S C R PTI 0 N The H LEVEL settlement gauge consists of The tank consists in Settlement gauge hydraulic tube connectors Y 10 12 mm barometric compensation tube connectors Y 6 8 mm drain valve fixing plate plugs hole 12mm connector Measure tank lower part autofilling tank upper part hydraulic tube connector 10 12mm water level control air filtering and drying system on tubes for barometric compensation plugs cap In the packaging there are also circuit closure caps to be installed in the last settlement gauge of the circuit WWW SISGEO COM H LEVEL_EN_00_14 Page 5 of 16 LEVEL Usually the liquid used is a waterglycerine mix 50 water 50 glycerine This mix has been chosen for its high temperature range without substantial changings in physical features to its low gas tension and for the lack of seaweeds and mould formation In addition it is also chemically inert to the materials composing the system and environmentally non dangerous The medium density is 1 1555 g cm The saturator is an
4. sender Please return to the following address with correct delivery documentation SISGEO S r l Via ESerpero 4 F1 20060 MASATE MI On the delivery document it is mandatory to indicate the RMA code received Technical assistance e mail assistance sisgeo com WWW SISGEO COM H LEVEL_EN_00_14 Page 15 of 16 n LEVEL APPENDIX 1 THERMISTOR TEMPERATURE CONVERSION Resistance to temperature equation T i 273 2 A B LnR C LnR Where T temperature in C LnR natural Log of the thermistor resistance A 1 4051x10 3 coefficents calculated over the 50 to 70 C span B 2 369x10 4 C 1 019x10 7 Ohms Temp Ohms Temp Ohms Temp Ohms Temp 6 60K 10 5971 0 2417 30 1081 50 5 72K 9 5692 1 2317 31 1040 51 4 90K 8 5427 2 2221 32 1002 52 4 12K 7 5177 3 2130 33 965 0 53 3 39K 6 4939 4 2042 34 929 6 54 2 70K 5 4714 5 1959 35 895 8 55 2 05K 4 4500 6 1880 36 863 3 56 11 44K 3 4297 7 1805 37 832 2 57 0 86K 2 4105 8 1733 38 802 3 58 0 31K 1 3922 9 1664 39 773 7 59 9796 0 3784 20 1598 40 746 3 60 9310 1 3583 21 1535 41 719 9 61 8851 2 3426 22 1475 42 694 7 62 8417 3 3277 23 418 43 670 4 63 8006 4 3135 24 1363 44 647 1 64 7618 5 3000 25 1310 45 624 7 65 7252 6 2872 26 1260 46 603 3 66 6905 7 2750 27 212 47 582 6 67 6576 8 2633 28 1167 48 562 8 68 6265 9 2523 29 1123 49 543 7 69 525 4 70 WWW S
5. the supplied cap on the last settlement gauge 10 and close the valve 2 of the saturator During the closure of the last settlement gauge close the tank valve 11 Disconnect the saturator from the tank 6 2 f 11 WWW SISGEO COM H LEVEL_EN_00_14 Page 11 of 16 LEVEL Open the tank valve 12 and let the tank liquid touch the settlement gauges Open for 2 second the valve 11 to drain air Pay attention to the liquid spill Open the drain valve 13 for 2 3 second and close it immediately Repeat this operation for every settlement gauge Read each settlement gauge and verify that they are in the required value If necessary move them up or down Tank auto filling The tank has an auto filling system that allows the liquid level to remain stable also in case of little leaks in the circuit This example shows how to notice the spills analyzing the data This behaviour will be registered on all settlement gauges and will be necessary to find and fix the leak on the circuit WWW SISGEO COM H LEVEL_EN_00_14 Page 12 of 16 ls LEVEL TAKING MEASUREMENTS DATA MANAGEMENT Manual readings are taken connecting the conductors to a readout according to the following scheme COLOUR FUNCTION PINS Red Loop 1 Pidal Black Loop 4 current loop White Thermistor 2 Green Thermistor 3 Shield Shield 5 To obtain reliable measures we reco
6. ISGEO COM H LEVEL_EN_00_14 Page 16 of 16
7. ment gauge Consider also the expected settlements lt Sensor Full scale If insulation is used it is necessary to cover the whole circuit also near the settlement gauge Use suitable insulation foams WWW SISGEO COM H LEVEL_EN_00_14 Page 7 of 16 LEVEL Settlement gauge installation e Fix the instrument with the supplied plugs 1 Hole 12 mm e fit the 4 tubes on their connectors and screw the sleeves 2 e to help the drain we suggest to fix the tubes 3 on the wall in order to keep them below the connector see picture below e ensure that the drain valve is closed 4 e arrange a container to receive the liquid that drains from the last settlement gauge WWW SISGEO COM H LEVEL_EN_00_14 Page 8 of 16 Ae LEVEL Tank installation e Fix the tank with the 4 plugs supplied 1 Hole 12mm e connect the filter system 3 to the tank using the 6 8 tube that is ca 20cm long 2 and fix it to the wall higher than the tank Hole 9mm e close the valve 4 e remove the cap 5 and fill in the tank using a funnel and cheking the water level control 6 the volume is approximately 71 e close the cap 5 e keep the valve closed 4 Filling of the circuit It s possible to fill in the circuit in two ways e using gravity for short circuits of 15 20m e using the saturator Note Approximately you need about 8 x 100 m Using gravity e Close the valve
8. mmend a warm up time not less than 10 seconds The following formulas allow to convert the electric measurements into engineering values Linear factor _ Leng L S mm H O Polynomial factor Lars L x A Lj x B C mm H 0 A Engineering unit Lo Electric unit S linear sensitivity factor A B C polynomial conversion factors S A B C are stated on Calibration Report The excercise readings refer to the initial reading zero reading A HO L L L Zero reading mm H O L Excercise reading mm H O Zero reading shall be taken carefully once the installation is performed and the instrument is in operating conditions For many applications is necessary to wait several days to obtain a reliable zero reading We suggest to take the readings in a short lapse of time to verify if the system is stable Note in case the liquid used is a mix of 50 water and glycerine the obtained values in mm must be divided for 1 1555 Please consider what is written in the introduction paragraph on the way to connect data WWW SISGEO COM H LEVEL_EN_00_14 Page 13 of 16 ls LEVEL TROUBLESHOOTING Temperature measure With a Sisgeo readout the temperature is taken directly in C If you measure thermistore resistance value you have to convert it using the formula or the table in Appendix 1 Data analysis note Generally speaking but especially when there are complex circuits it is necessary
9. optional accessory used to fill the circuit It consists in 1 A stainless steel container of 250mm and about 20l capacity a valve for 6 8 tube a valve for Y 10 12 tube manometer compressor connection ar ih It is combined with a portable compressor with rechargeable battery PRELIMINARY Useful tools CHECKS e Spanner n 12 e 18 e Screwdriver e Allen key n 5 10 e Drill and tips of Y 9 and 12mm suited for the material to be drilled e Cutter e Bucket e Rags e Funnels e Raceways with plugs for fixing tubes and cable WWW SISGEO COM H LEVEL_EN_00_14 Page 6 of 16 lis LEVEL INSTALLATION Connectors wiring The electrical cable to be connected to the instrument generally has already a connector on one side On request it is possible to supply a cable reel from which it is possible to cut the single parts In this case it is necessary to wire the connectors as follows PINS FUNCTION N 1 Loop N 2 Thermistor N 3 Thermistor N 4 Loop N 5 Shield Precautions and suggestions Verify the correct functioning of every sensors before starting the installation The value you read without pressure is around 4mA If installed outside provide a roofing in order to supply some repair from the bad weather conditions The settlement gauges have to be installed at the same height and below the level of the tank without exceeding the range of the settle
10. t instrument or to order spare parts always specify the product information which can be found on the identification label When replacing parts always use ORIGINAL SPARE PARTS The manufacturer reserves the right to make either technical and or commercial changes without prior notice It is our policy to keep manuals continuously updated Symbols Pay particular attention to the following instruction Identification Instruments can be identified e From a production lot number written on the Compliance Certificate e From a serial number s n engraved indelibly on the instrument e From a label on the instrument e From a label on the cable WWW SISGEO COM H LEVEL_EN_00_14 Page 3 of 16 H LEVEL I N T R 0 D U C T I 0 N H level settlement gauges are used to monitor subsidences and or settlements in buildings and structures An H level system is composed by a reference tank placed out of the area that has to be monitored and by one or more settlement gauge based on pressure transducer The settlement gauges are placed in the points of interest and are connected through two flexible tubes One tube contains the liquid the other is necessary for the barometric compensation which is common to all the settlement gauges During the plant design phase we suggest to install a settlement gauge near the tank in a stable zone not subject to settlements in order to have some measurements to compare to the
11. to use a statistical approach to analyze the data and cancel any temperature effect on the measures Problem Possible cause Solution g Shield not connected Connect the shield 3 S Electro magnetic fields nearby F engines generators radio antennas Identify and remove the cause 2 welders high voltage lines s YN Ds e Data acquisition system grounding not o A gt q y 9 9 Provide efficient grounding well done e Open circuit Make a correct connection qs ES o Wrong connection Make a correct connection gt 2 High absorption Fix critical point Sa 5S 8 E Short circuit Fix critical point WWW SISGEO COM H LEVEL_EN_00_14 Page 14 of 16 AS LEVEL MAINTENANCE MAINTENANCE SERVICE Check periodically the hygroscopic salts status in the air filter system and change them when 50 is shown Check for leaks in the tubes In case of cuts we recommend to use joints connectors see photo below Aftersales assistance for calibrations maintenance and repairs is performed by SISGEO s service department The authorization for shipment shall be activated by RMA Return Manufacturer Authorization Create your account and then fill in the RMA module clicking on http www sisgeo com repairs htm Send back the instrument equipment with the complete accessories using suitable packaging or even better the original ones The shipping costs shall be covered by the
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