7-5-5 GB TA-CBI

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TA-CBI Balancing Instrument 7-5-5 2004.10 Technical description TA-CBI is a computer programmed balancing instrument. It consists of an electronic differential pressure gauge and a micro computer which has been programmed with the TA valve characteristics which makes possible a direct reading of flow and differential pressures. The TA-CBI has two main components: - An instrument which contains a micro computer, input touch pad, LCD display and re-chargeable NiMh batteries. - A sensor unit whic
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  TA-CBI7-5-5 Balancing Instrument2004.10 TA-CBI is a computer programmed balancing instrument. Itconsists of an electronic differential pressure gauge and amicro computer which has been programmed with the TA valvecharacteristics which makes possible a direct reading of flowand differential pressures.The TA-CBI has two main components:- An instrument which contains a micro computer, input touchpad, LCD display and re-chargeable NiMh batteries.- A sensor unit which contains a piezoresistive pressuresensor, one measurement valve and connections.The measurement valve has a safety function which protectsthe sensor from too high differential pressures. Measurement range: Total pressure: max 2 500 kPa.Differential pressure: -9 to 200 kPa.Flow: During flow measurements the pressure range is 0.5 to200 kPa.Temperature: -20 to 120°C Temperature liquid medium: -20 to 120°C Measurement deviation: Differential pressure: The greater of ± 1% of displayed value or ± 0.2 kPaFlow: As for differential pressure + valve deviation.Temperature: <0.2°C + sensor deviation. Effective operating time: 8 to 10 h between charges depending upon application. Ambient temperature for the instrument: 0 to 40°C (during operation)5 to 40°C (charging)-20* to 60°C (storage) *) Do not leave water in the sensor when there is a risk offreezing. Technical description  7-5-5 - 2 Case contents: 1. Instrument2. Sensor unit3. Temperature sensor Pt 10004. Charger5. Hoses:400 mm blue400 mm red with shut-off valve150 mm with twin needle6. Chuck, red, for old valves7. Chuck, blue, for old valves8. Allen key 5 mm9. Allen key 3 mm10. Key STA11. Chain for mounting12. Manual13. Certificate14. CD-record15. PC cable16. Torx key17. Upgrade cable18. Measuring needles19. Belt clip TA-CBI, complete TA NoLanguage   52 197-001SE52 197-002GB52 197-003DK52 197-004NO52 197-005FI52 197-006DE52 197-007FR52 197-008NL52 197-009ES52 197-010CZ52 197-011PL52 197-012RU52 197-013HU52 197-014US52 197-015UK  7-5-5 - 3 Differential pressure measurement Sensor for high total pressures and low differential pressures gives quick results and reliable readings. Temperature measurement A Pt 1000 temperature sensor which allows measurement direct in the media is included. Automatic calibration When the sensor is connected and the instrument switched on, the sensor is automatically calibrated before each measurementsequence. Automatic venting The design of the sensor unit and a short flow-through during calibration eliminate measurement errors caused by insufficientventing. Balancing The instrument is programmed to calculate pre-setting values for balancing and also the TA Method and TA Balance. PC communication Measured values can be saved in the TA-CBI and then transferred to a PC for printout as a commissioning report. It is also possibleto prepare the measurements by describing the system in the PC and then download the data to the TA-CBI. A PC program isincluded for this purpose. Media correction TA-CBI can calculate flows with different contents of glycol or similar anti-freeze additives in the water. Trouble shooting TA-CBI can log differential pressures, flows or temperatures: up to 24 000 measured values can be logged. With appropriatechoice of logging interval, this means that periods from 20 hours to 65 days can be covered. Manuals See the following manuals for descriptions of various balancing methods: Total hydronic balancingManual no. 1: Balancing control circuits Manual no. 2: Balancing distribution systems Manual no. 3: Balancing of radiator systems Manual no. 4: Hydronic balancing with differential pressure controllers TA Balance This method involves balancing the circuits (the modules) separately. Measure each valve at two settings: the prescribed position,and closed. When all the valves in the module have been measured, the TA-CBI will calculate the settings and assign a pressuredrop of 3 kPa to the least favoured valve. TA Method In the TA Method you first choose the valve which is furthest away in the circuit as a reference valve. Using the main valve for thisentire circuit, maintain a constant differential pressure during the course of the operation (for example 3 kPa) at the correct flowthrough the reference valve. Then, set the correct flow rate in the remaining valves in this circuit successively starting with thesecond furthest valve from the pump.When all circuits are ready proceed with the main line. When the entire installation is balanced all valves have the correct flow. Ifit has been necessary to throttle a valve in series with the pump, adjust the pump or change to one with the correct capacity. FunctionSupport material  7-5-5 - 4 Measuring nipple Thread connections G1/2 and G3/4 Measurement pointMeasuring nipple Extension 60 mmCan be installed without draining of the system. Measuring hose Extension Charge lead for 12V connection in a car. (TA-CBI)Allen keyKey for measurement point *) Included in the TA-CBI. Accessories TA No   52 197-303G1/252 197-304G3/4 TA NoLdFor valve   52 179-009391/4STAF DN 20-5052 179-6091031/4”52 179-008393/8STAF DN 65-30052 179-6081033/8” TA No   52 179-006 TA NoLength   52 197-0933 mred, with shut-off valve52 197-0943 mblue TA No   52 197-070 TA No   52 187-103*3 mmPre-setting52 187-105*5 mmDraining TA No   52 187-004*  Ld Tour & Andersson retains the right to make changes to its products and specifications without prior notice.
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