Operating instructions Flow meter “OV-DMC 2”
Contents
1. After having processed all measurements the programme Data Logging is completed automatically To conserve the batteries long term measurements may only be carried out with the power pack being connected Should no power supply be available a limited number of measurements may be carried out without the power pack During entry the following has to be observed The product of clock time and measurements may not exceed 60 e g 10 measurements every 6 minutes The number of measurements may not exceed 20 The measurement cycle may not exceed 2 hours If the a m instructions are not followed the error message No powerpack appears Now a power pack has to be connected and the error message has to be neutralised by pressing the key OK The green control lamp of the flow meter lights up during power pack operation 12 Measurement Balanced pressure method Data Logging BALANCED PRESSURE Hydrocon R DN 020 presetting mbar I h I h __ presetting new __ CHECK MEASUREMENT T Hydrocon R DN 025 presetting mbar I h gt STORE lt STORE MEASUREMENT name DataLog1 group 2 number 1 gt STORE lt gt DATA LOGGING lt DATA LOGGING measurements 200 next in 10 min gt START lt DATA LOGGING Il Error No Power pack gt Yes lt oveniron Kv value method The kv value of the valve to be measured is entered Input is completed by pressing t2. DN 15 1710 DN 15 to DN 50 M2733 DN 50 to DN 300 M2943G DN 350 to DN 600 M2944G DN 350 to DN 600 M2963G DN 350 to DN 600 M2964G DN 350 to DN 600 M2973G DN 350 to DN 600 M2974G DN 350 to DN 600 2473LC DN 15 2473L DN 15 2473MC DN 15 2473M DN 15 2432C DN 15 2432 DN 15 to DN 50 5200 DN 15 to DN 50 M7733CSDR DN 65 to DN 200 Characteristic lines oveniron Contents of measuring case oN So OR 9 10 11 12 13 14 15 16 17 18 19 Operating instructions Measuring case Flow meter OV DMC 2 with shoulder strap Measuring head with connection cable connection nipple for measuring hose and two rubber rings protecting the measuring head against impact Power pack with connecting cable Temperature sensor with connecting cable 1 m long Measuring hose red with quick couplings 0 5 m long Measuring hose blue with quick couplings 0 5 m long Allen key 3 mm with black handle Allen key 4 mm with black handle Allen key 8 mm with black handle PC connection cable to transmit stored data of the OV DMC 2 to the serial interface RS 232 Diskette for data transmission 2 measuring adapters with connection thread 3 4 for quick coupling technic Suitable for Hydrocontrol as well and the fill and drain tool 106 17 91 of Hycocon Measuring adapter with connection thread for double regulating and commissioning valves Hydrocontrol with needle technic Set of
3. F 11 oveniron Measurement Some measurements are started directly from the menu Valve Setup Cocon valves and metering stations The sequence of measurement is similar to the kv value method and is also described under that point For all other regulating valves the menu Measurement Setup offers diffe rent measuring methods Balanced pressure method Data logging Kv value method Computer method OV Balance Balanced pressure method The valve manufacturer as well as the valve chosen in the submenu Valve Setup is indicated Presetting requires the presetting of the valve to be measured Input is completed by pressing the key OK Now the measuring head is activated by the flow meter and the bypass is closed automatically The closing procedure is indicated by the rota ting symbols in the left and the right display corners The closing procedure being completed indicated by symbol 1 it still takes a short moment before the pressure measured as well as the resulting flow rate is indicated Now the desired flow rate has to be entered After having entered this value which is confirmed by pressing the key OK the flow meter calculates the new presetting which it indicates as presetting new Now the valve has to be preset according to the new value By pressing the key OK the menu Check Measurement is reached Here the new presetting value the resul ting different
4. START TEMP MEASUREMENT oveniron Choose name of the regulating group e g cellar CHOOSE GROUP name Cellar Go to next menu win dow by using the key OK group 1 5 valves gt NEW lt Choose number of the regulating group e g 1 Go to next menu win CHOOSE GROUP vias using ine gey name Cellar group i 5 valves gt NEW lt Choose calculation No _ by using the keys OV BALANCE CO and Go to next menu win x dow by using the key OV BALANCE OK CALCULATE NO KKKKKKKKKKKKKX Choose menu option by pressing the keys a and GW e g delete valve measure Go to next menu win add valve dow by using the key OK OV BALANCE delete valve move valve Choose valve number by using the keys SETTINGS and name Cellar G 1 No presetting 0 0 Choose the valve num ber of the regulating group to be deleted by using the keys Qand SETTINGS name Cellar G 1 No 3 e g 3 E of all data of the 0 50 I h valve no 3 to be deleted 68 9 mbar Go to next menu window Hydrocon R DN 20 by using the key G gt presetting 3 4 OV Balance Delete valve Delete valve by pressing __ the keys and Go to next menu win dow by using the key name Cellar OK ee KE SETTINGS DELETE VALVE i YES H KKKKKKKKKKKKKKK Referring to the following calculation of the preset OV BALANC
5. T dow by using the key n aed OK reset valve Display of next valve 2 OV BALANCE which may be measured in object in the regulating group G 1 2 Other valves may Hydrocon R DN 20 however be chosen by 3 0 preset g 0 0 using the keys nee The numbering of SSTORE lt valves once determined must be observed Go to next menu window by using the key end 20 OV Balance New valve Choose calculation Yes by using the keys CO and OV BALANCE kkk k k k k k k k KOK OK KOK Go to next menu win dow by using the key OV BALANCE OK CALCULATE YES kK KK EE EE EE EK Choose System Setup in main menu by using the keys and SYSTEM SETUP MEASUREMENT SETUP VALVE SETUP MEASURE START TEMP MEASUREMENT Choose Store by using SYSTEM SETUP the keys D and English sound on light off lighttime 00 s charge batteries memory Choose View content MEMORY by using the keys a and Print content View content Clear memory After successful calcu lation the presetting SETTINGS values can be queried name Cellar according to the valve G 4 Nr 4 numbers e g valve data 9 99 Vh of valve 1 Choose the valve oa number by using the keys GD D Change to main menu by pressing the key na Choice of next menu option mbar Hydrocon R DN 20 presetting 1 5 SYSTEM SETUP MEASUREMENT SETUP VALVE SETUP MEASURE
6. alphabet Having reached the required letter the cursor is moved one position to the right by using the key gt gt Then press the key OK to conclude entry and to jump to point group A measurement to be stored can also be stored under an existing name To do this you have to specify a different group or valve number Group Numerical values up to 999 can be entered here Press key OK to conclude entry Number Numerical values up to 999 can be entered here Press key OK to conclude entry Printing of valve data This point of the menu permits the output of the measured values via a PC To do so the measurements carried out must have been stored in the flow meter by using the command Store Up to 99 measurements may be stored and transmitted to the PC subsequently In order to do this the serial transmission cable has to be connected to the flow meter and the serial interface COM1 or COM2 The serial interface used has to be set to the following values in the system control of Windows Baud rate 19200 Data bits 8 Parity none Stop bits 1 Print out none After having selected Receiving data on the PC the programme is waiting for the data of the OV DMC 2 To do this choose the submenu Print content within the menu System Setup and start data transfer by pressing the key OK on the flow meter Storage and printing of valve data TEMP MEASUREMENT 7
7. Characteristic lines of other valves Tour amp Anderson stored values taken from the catalogue 1999 Flanged valve type STAF DN 20 to DN 300 Flanged valve type STAF SG DN 20 to DN 300 Flanged valve type STAF R DN 65 to DN 150 Female threaded valve type STA DN 15 to DN 50 Female threaded valve type STAD DN 10 to DN 50 Male threaded valve type STADA DN 10 to DN 50 Female threaded valve type STA DR DN 15 to DN 25 oveniron Crane stored values taken from the catalogue 2000 Double regulating and commissioning valves Fig No Fig No Fig No Metering stations combinations metering stations valves Fig No Fig No Fig No Fig No Fig No Fig No Fig No Hattersley stored values taken from the catalogue 2000 D 930 DN 10 to DN 50 DM 930 DN 20 to DN 300 D922 D932 DN 15 D901 D941 D931 DN 15 to DN 50 DN902 D942 DN 15 DN933 DN 15 D933 DN 15 D934 DN 15 DM900 DM942 DN 20 to DN 300 DM950 DN 50 to DN 300 Double regulating and commisioning valves Fig No Fig No Fig No Fig No Metering stations combinations metering stations valves Fig No Fig No Fig No Fig No Fig No Fig No Fig No Fig No Fig No Fig No Fig No Fig No Fig No Fig No Fig No M737 DN 50 to DN 300 M1700 DN 15 to DN 50 1700L
8. EK KK x number of valves 7 WITHOUT group val Enter KK KK KKK KKK KK KKK NAME GROUP NEW name Cellar group 1 5 valves OV BALANCE measure add valve delete valve move OV BALANCE in object Cellar G 1 1 DN O 3 0 preset g 0 0 mbar I h gt STORE lt Choose the valve manufacturer by using the keys D Change to valve type via Choice of valve type via Change to valve size via Choice of valve size via D Go to next menu win dow by using the key OK Confirm the presetting entered before by using the key OK while changing to the next menu window automatically User information Go to next menu win dow by using the key OK User information Go to next menu win dow by using the key OK Display of the presetting 0 0 for closed valve Go OV Balance Measurement OVENTROP type Hydrocon R size DN 20 OV BALANCE in object Cellar G 1 1 Hydrocon R DN 20 3 0 preset g 0 0 mbar I h gt STORE lt OV BALANCE in object OV BALANCE in object OV BALANCE Slee in object hee to next menu window by Cellar G 1 1 using the key OK User information Go to next menu win dow by using the key OK Hydrocon R DN 20 3 0 preset g 0 0 mbar h gt STORE lt OV BALANCE in object oveniron Enter nominal flow rate for valve no 1 e g 500 I h Go to next menu win
9. Il Error No temperature sensor gt Yes lt Hydrocon R DN 025 presetting number gt STORE lt MEMORY Print content View content Clear memory 23 oveniron Example of the listing of all stored measured values Printing the memory content shows the sequence of measurement Print out of measured data example Date 30 03 00 Project number 47 2000 Project Multiple dwelling unit Address of project Neubaustrasse 7 59939 Olsberg Builder owner Herbert H usle Marktplatz 3 59939 Olsberg Specifying engineer Rudi Rechner Plumber August Rohrich KKK KKK KX Listing of all stored measured values gt gt k k x gt k k KKK KK Name Groupno Valveno Valve DN oats hae aber h de Cellar 1 1 Hydrocon 15 1 36 0 15 0 15 78 03 Cellar 1 2 Hydrocon 15 2 63 0 30 0 31 78 45 Cellar 1 3 Hydrocon 20 3 60 0 60 0 61 78 32 Cellar 1 4 Hydrocon 25 1 90 0 70 0 69 77 91 JK AK OK KK KK OK KK OK OK OK OK KK KK OK KK OK OK KK KK OK KK KKK KK KKK KKK KK KKK KKK KKKK View content It is possible to view the measured values access by pressing the key OK The measurements which are stored can be viewed by using the keys CO and When moving to group or number by using the keys and the desired measurement can be selected by using the keys and The menu option can be exited by pressing the key gt Clear memory It is possible to delete the stored measuring data The display shows th
10. and 18 New valve Subsequent addition of valves to a regulating group which were not taken into consideration in the numbering before See sequence of programme on pages 19 and 20 Delete valve Subsequent deletion of valves of a regulating group See sequence of programme on page 21 Move valve Subsequent moving of valves of a regulating group if the numbering within the menu Measurement was mixed up See sequence of programme on page 22 15 oveniron Enter name of the regulating group e g cellar Choose first letter by using the key Ga gt and jump to the second letter by pressing the key and so on Go to the next menu window by using the key OK Enter number of the regulating group e g 1 Go to next menu win dow by using the key OK User information Go to next menu win dow by using the key OK Enter the number of the regulating valves of one group e g 5 without group valve Go to next menu win dow by using the key OK Choose the menu option by pressing the keys G and e g measurement Go to next menu win dow by using the key OK Enter presetting of the first valve of the group e g 3 0 medium presetting Go to next menu win dow by using the key OK 16 NAME GROUP NEW name cellar group 0 0 valves NAME GROUP NEW name Cellar group 1 0 valves OV BALANCE 3 KKK RR
11. da in bee ere eee oe oe ee oe ee eee 14 Storage and printing of valve data Linie ris anis sd dche000ee4 obRe toe new eee eed ee ue eed 23 d ee eae wed eee eee se eee es a eae ee 24 BASS see eee Se he ee ee ee Sa ee ee eee eee ee eae 25 Display serrr cease etude ee cese Ceweieeeeee 0 25 F nc thonal messages ne new e eee ieunns osebes sew Eaa A E OEE E EEG se 26 Eror ITS ANR Ne Li nn da una modo note nes DR To sr Ci MO ei ee 27 A de E e ee eee 28 Subject to modification without notice Oventrop does not accept liability for the accuracy of the OV DMC flow meter readings General information Characteristic lines oveniron General information The flow meter OV DMC 2 was specially designed for flow measurements and the hydronic balancing of heating and chilled water a c systems In practice operation off the line is guaranteed by using rechargeable batteries To facilitate handling null balance is automated This process of changeover to the measuring position of the measuring head is taken over by an electric motor which is automatically triggered by the flow meter during each measurement This step largely protects the measuring head against any damage To pro tect the measuring head from contamination the inlet and outlet nipple are provided with integrated strainer inserts Nipples for replacement are supplied with each flow meter see part 17 and can be replaced by using a standard spanner spanner size 17 mm Spare part
12. dow by using the key OK The command for storing appears Go to next menu win dow by using the key OK User information Set back valve to previ ous presetting e g 3 0 Go to next menu win dow by using the key OK Display of the next valve 2 which can be measu red in the regulating group Other valves may also be chosen be means of the keys O and The numbering of valves once determined must be observed Go to next menu win dow by using the key OK OV BALANCE in object Cellar G 1 1 Hydrocon R DN 20 3 0 preset g 0 0 mbar 500 I h gt STORE lt OV BALANCE in object Cellar G 1 1 Hydrocon R DN 20 3 0 preset g 0 0 mbar 500 I h gt STORE lt OV BALANCE in object Il Attention 3 0 reset valve OV BALANCE in object G 1 2 DN 00 3 0 preset g 0 0 mbar I h gt STORE lt OV Balance Measurement 17 oveniron After having completed the measurement of all valves of a regulating group the group valve is measured Display shows 0 Go to next menu win dow by using the key OK Choose the valve manufacturer by using the keys gt D Change to valve typ via Choice of valve type via Change to valve size via Choice of valve size via D Go to next menu win dow by using the key OK User information Go to next menu win dow by using the key OK User information Go to next me
13. gt NEW lt OV BALANCE KKKKKKKKKKKKKK OV BALANCE CALCULATE NO KKKKKKKKKKKKKK measure add valve delete valve move valve OV BALANCE move valve name Cellar G 1 Nr 3 Hydrocon R DN 20 move valve no 3 behind valve no 4 OV BALANCE KKKKKKKKKKKKKKK OV BALANCE CALCULATE YES EEEE RK OR OK OK OK OK KK After successful calcula tion the presetting values can be queried according to the valve numbers e g valve data of valve 1 Choice of the valve data by using the keys O D Change to main menu by pressing the key Menu option OV Balance Move valve SETTINGS name Cellar G 1 Nr 1 0 20 h 128 0 mbar Hydrocon R DN 20 presetting 1 3 SYSTEM SETUP MEASUREMENT SETUP VALVE SETUP MEASURE START TEMP MEASUREMENT oveniron Storage of valve data The menu Store Measurement offers the possibility to store measurements Apart from name group and number the valve type valve size preset ting differential pressure and flow rate are stored This data can be printed via the serial interface Name The menu point name allows the entry of up to 8 alphanumerical signs 0 9 A Z a z Figures are entered by pressing the corresponding keys on the key board Letters are produced by using the keys A or GW Each key stroke moves you either upwards A a B b or downwards Z z Y y in the
14. in comparison are indicated After having completed control the beginning of the menu can be reached by pressing the key and a new measurement can be carried out Attention Each measurement with subsequent change of valve type has to be completed by pressing the key Gr Kv value method Cocon valves Metering stations Computer method KV VALUE METHOD COCONkv045 DN015 mbar I h gt STORE lt STORE MEASUREMENT Hydrocon R DN 020 preset g 1 preset g 2 h h preset g new CHECK MESAUREMENT Hydrocon R DN 025 presetting mbar I h gt STORE lt 13 oveniron OV Balance OV Balance This regulation method is an advancement of the compensation method The advantage of the OV Balance is that the complete supply system may be balanced by only one person The time required for the hydronic balance is reduced considerably provided that the installation is structured clearly and a consecutive numbering of all regulating valves is summarised in regulating groups Once the numbering has been determined it must be kept to during measurements Nevertheless individual valves may be added deleted or moved subsequently within the group provided they were taken into consideration during the preceding numbering of all valves Example of an installation with numbering of the valves 1 regulating group 2 regulating group MM V6 V 7 V8 V9 V 10 A supply system may be co
15. key OK Apart from name group and number differential pressure and flow rate are stored This data can be printed via the serial interface Attention Each measurement with subsequent change of valve type has to be completed by pressing the key Gr Computer method The valve manufacturer as well as the valve chosen in the submenu Valve Setup is indicated At the prompt Preset g 1 enter the presetting of the valve to be measured Input is completed by pressing the key OK Now the measuring head is activated by the flow meter and the bypass is closed automatically The closing procedure is indicated by the rota ting symbols in the left and right display corners The closing procedure being completed indicated by the symbol l it still takes a short moment before the flow rate measured is indicated Now the valve has to be preset to the new presetting which is entered at the prompt Preset g 2 By pressing the key OK the second flow value is indi cated on the display The desired flow rate has to be entered now Input is completed by pressing the key OK The flow meter now calculates the new value of presetting which is indicated as Preset g new Now the valve is pre set according to the new value By pressing the key OK the menu Check Measurement is reached Here the new presetting value the resulting diffe rential pressure and the old and new flow rate
16. key end 25 oveniron In the main menu Measure start the functional sequence of the measuring head is shown on the display This message only appears on the screen for a few seconds The sequence is continued automatically Functional messages I Attention Close bypass gt Yes lt II Attention Open bypass gt Yes lt This message has no significance for the handling of the flow meter but only shows that stored data has been saved I Attention Saved data This message appears if no more storage locations are available see page 14 KKKKKKKKKKKKKKK STORE MEASUREMENT DELETE No K K k K k K k K k k k k k k 26 oveniron The following error message may appear on the display Error No temperature sensor Solution Connect temperature sensor and press key OK Error No measuring head Solution Connect measuring head and press key OK Error Input error Solution Check last entry and press key OK Error Negative pressure Measuring connection mixed up The direction of flow does not conform with the arrow embossed on the body of the double regulating and commissioning valve Solution Delete message by pressing the key OK Error No power pack This message appears if the submenu charge batteries is selected in the main menu System Setup with no power pack being connected Solution Plug in power pack and pre
17. measuring needles 106 91 99 for measuring technic classic of double regulating and commissioning valves e g Hydrocontrol Operating key 106 01 85 for older double regulating and commissioning valves Hydrocontrol Two connection nipples 106 91 86 for replacement at measuring head Set of measuring needles 106 17 99 for measuring technic eco of double regulating and commissioning valves e g Hycocon 2 fill and drain tools 106 17 91 for measuring technic eco of double regulating and commissioning valves e g Hycocon oveniron Component connection diagram 2 Flow meter OV DMC 2 with shoulder strap 3 Measuring head with connection cable connection nipples for measuring hoses and two rubber rings protecting the measuring head against impact 4 Power pack with connecting cable 5 Temperature sensor with connecting cable 1 0 m long 11 PC connecting cable to transmit stored data of the OV DMC 2 to the serial interface RS 232 Oventr oD Measuring range Resolution Accuracy Ambient temperature Humidity Protection class Dimensions weight Display Power supply Interface Technical data Measuring range differential pressure 0 05 kPa to 200 kPa Max static excess pressure 2000 kPa Measuring range temperature 20 C to 120 C Differential pressure 0 01 kPa Flow 0 0001 l s Temperature 0 1 C Differential pressure up to 10 mbar 0 5 10 to 200
18. number of the nipples for subsequent ordering 106 91 86 Attention Before the measuring hoses are connected to the double regulating and commissioning valve the flow meter has to be connected to the measuring head and has to be switched on Provide for free water flow through measuring hoses Clean or replace strainer inserts of the measuring hose in case of heavy pollution For further details regarding function sequences see page 10 and onwards The logical structure and the consequent query on the display offer a good condition to carry out hydronic balancing of existing installations without calculation Presetting of a double regulating and commissioning valve can be calculated by using the balanced pressure method computer method or OV balance method after having entered the valve size and the nominal flow rate The presetting values of individual double regu lating and commissioning valves can be calculated on the basis of the characteristic lines of all Oventrop double regulating and commissioning valves as well as those of some competitors which are stored in the flow meter see list below When using the OV DMC 2 for the regulation of valves which are not produced by Oventrop the corre sponding kv value has to be entered before the first measurement To do so the kv value method is chosen in the menu Measurement Setup Any data obtained during measurement is stored in the OV DMC 2 and can be processed via a
19. 0 mbar 1 of measured value Flow 0 01 I s Temperature 0 5 C Working temperature 0 C to 40 C Storage 20 C to 60 C Attention In case of risk of frost no water may remain in the measuring head In this case the measuring head and the measuring hoses have to be drained completely Max relative humidity of 90 non condensing Body IP52 Keyboard IP54 Flow meter 160 x 63 x 40 mm weight 470 g Measuring head 130 x 70 x 70 mm weight 1240 g LCD display with backlighting 4 rechargeable NiMh batteries or by using enclosed power pack 230 V AC 50 60 Hz or by using 4 commercial Mignon batteries 1 5 V Attention In case of battery operation the power pack must not be connected RS 232 oveniron Keyboard oventrop OV DMC 2 9 9 200 OO a bot The flow meter is activated by using the key The flow meter is switched on by pressing the key for about 1 second and is switched off by pressing it for about 3 seconds only possible in the main menu Before the flow meter switches off completely some data is saved and it is checked with the measuring head being connected whether the bypass inside the measuring head is opened If required it is opened then Use the keys and CF to get from one point of the menu to the next Selecting key CO and within the menu Modification of flow meter setting e g adjustment of the contrast of the display See page 25 Going back to the p
20. E ee went Him Veo dow by using the key OV BALANCE x OK 2 CALCULATE YES KKEKKKKKKKKKKKKK After successful calcula tion the presetting SETTINGS values can be queried name Cellar according to the valve G 1Nr 4 numbers e g valve data 0 20 Vh of valve 1 128 0 mbar Choice of the valve data Hydrocon R DN 20 D D keys Change to main menu by pressing the key presetting 1 3 Menu option SYSTEM SETUP MEASUREMENT SETUP VALVE SETUP MEASURE START TEMP MEASUREMENT 21 oveniron Choose name of the regulating group e g cellar Go to next menu win dow by using the key OK Choose number of the regulating group e g 1 Go to next menu win dow by using the key OK Choose calculation No by pressing the keys CD and Go to next menu win dow by using the key OK Choose menu point by pressing the keys Ga and M e g move valve Go to next menu win dow by using the key OK Choose the valve num ber of the regulating group to be moved e g 3 by using the keys a and Cb Listing of all data of the valve no 3 to be moved Go to next menu window by using the key OK Referring to the following calculation of the preset ting values Go to next menu win dow by using the key OK 22 CHOOSE GROUP name Cellar group 1 5 valves gt NEW lt CHOOSE GROUP name Cellar group 1 5 valves
21. PC under Windows which guarantees the filing of any data obtained during hydronic balancing Moreover temperature can be measured by using the flow meter To do so the sensor is introduced into the pressure test points at the double regulating and commissioning valve As for the double regulating and commissioning valves Hycocon the temperature must be seized at the pipework or the valve body Characteristic lines Characteristic lines of the Oventrop valves Double regulating and commissioning valves Hydrocontrol R DN 10 to DN 65 Double regulating and commissioning valves Hycocon V DN 15 to DN 40 Regulating valves Hycocon T DN 15 to DN 25 Double regulating and commissioning valves Hydrocontrol G DN 65 to DN 300 Double regulating and commissioning valves Hydrocontrol F DN 20 to DN 300 Double regulating and commissioning valves Hydrocontrol FR DN 50 to DN 200 Double regulating and commissioning valves G 86 DN 10 to DN 65 Swedish market Double regulating and commissioning valves RF 93 DN 20 to DN 300 Swedish market Regulating valve for chilled ceiling installations Cocon kv 0 45 DN 15 Regulating valve for chilled ceiling installations Cocon kv 1 0 DN 15 Regulating valve for chilled ceiling installations Cocon kv 1 8 DN 15 Bronze metering station DN 15 to DN 50 Flanged stainless steel metering station DN 65 to DN 600 Flanged cast iron metering station DN 65 to DN 300
22. by pressing the key Menu option SYSTEM SETUP MEASUREMENT SETUP VALVE SETUP MEASURE START TEMP MEASUREMENT oveniron Choose the name of the regulating group e g cellar Go to next menu win dow by using the key OK CHOOSE GROUP name Cellar group 1 4 valves gt NEW lt Choose the number of the regulating group e g 1 CHOOSE GROUP Go to next menu win name Cellar maa using the key group 1 i valves gt NEW lt Choose calculation No by using the keys OV BALANCE D o to next menu win dow by using the key OV BALANCE OK CALCULATE NO K k k k k k k k k k k k k Choice of the menu options by using the keys e g new valve measure Go to next menu win new valve dow by using the key delete valve OK move valve Enter valve number of l OV BALANCE the regulating group to New Valve be added e g 3 Go to next menu win Cellar dow by using the key 1 OK no valve 4 add valve no 3 Selection of the OV BALANCE measurement menu for in object the valve to be added G 1 3 Go to next menu win T DN 0 dow by using the key 3 0 preset g 0 0 OK mbar h gt STORE lt Change to next menu window by pressing the key Choose the valve manufacturer by using the keys gt D Change to valve type via A Choice of valve type via O D Change to val
23. e message Measurement store Delete No No can be changed to Yes by using the keys G and The command to delete the whole memory content has to be confirmed by pressing the key OK Before deleting it is recommended to have the memory content printed via the serial interface After having deleted the memory content new measurements can be stored If all storage locations are occupied it is not possible to store any more measurements and the sequence shown on the right appears procedure as described above 24 Example MEMORY Print content View content Clear memory MEMORY Print content View content Clear memory STORE MEASUREMENT 7 KKKKKKKKKKKKKKX MEASUREMENT STORE DELETE No EK KK KKK KK KKK KKK STORE MEASUREMENT 7 KKKKKKKKKKKKKKX MEASUREMENT STORE 7 DELETE T Yes KK KKK KKK k k k KKK oveniron Batteries 1 2 V NiCd or NiMH batteries should preferably be used The batteries should have a minimum capacity of 700 mAh but NiMH batteries with 1500 mAh are even better The larger the capacity the longer the battery life Should the bat teries be empty operation can be continued by using the power pack supplied with the flow meter Here the green control lamp at the flow meter will light up The charging operation of the batteries is indicated at the flow meter by a red control lamp and can be selected in the menu System Set
24. e measurement by pressing the key OK Confirm the measured temperature by using the key OK The main menu is called up at the same time Choice of the medium e g ethylene glycol Valve Setup Oventrop Choice of the valve manufacturer by using the keys D and D Type Change to valve type by using the key CW Choice of the valve type by using the keys and Size Change to valve size by using the key CW Choice of the valve sizes dimensions by using the keys and Temperature measurement Connect the temperature sensor to the flow meter Change to temperature measurement by using the key OK Go to main menu by pressing the keys OK or after having measured the temperature An error message will appear on the display if there is no sensor connected Change to main menu by pressing the key OK connect temperature sensor and repeat measurement Measurement Setup Valve Setup Temperature measurement MEASUREMENT SETUP BALANCED PRESSURE pressure mbar flow I h Water MEASUREMENT SETUP KV VALUE METHOD pressure mbar flow l h Water MEASUREMENT SETUP COMPUTER METHOD pressure mbar flow I h Water MEASUREMENT SETUP BALANCED PRESSURE METHOD pressure mbar flow l h Ethylen glycol 35 VALVE SETUP OVENTROP type Hydrocon size 020 Temp 022 2 C Temp 072 0
25. he key OK Now the measuring head is activated by the flow meter and the bypass is closed automatically The closing proce dure is indicated by the rotating symbols in the left and right display corners The closing procedure being completed indicated by symbol l it still takes a short moment before the pressure measured as well as the resulting flow rate is indicated The menu Store measurement is reached by pressing the key OK Apart from name group and number differential pressure and flow rate are stored This data can be printed via the serial interface Attention Each measurement with subsequent change of valve type has to be completed by pressing the key Gr Measurement of Cocon valves and metering stations Here the Cocon valve or the metering station are chosen in the menu Valve Setup Choice is confirmed by pressing the key OK and measurement is started automatically Now the measuring head is activated by the flow meter and the bypass is closed automatically This closing procedure is indicated by the rotating symbols in the left and right display corners The closing procedure being completed indicated by symbol l it still takes a short moment before the differential pressure measured as well as the resulting flow rate is indicated By pressing the key G lt the measuring procedure is completed and the menu Store measurement is reached by pressing the
26. ial pressure and the old and new flow rate in comparison are indicated After having completed control the beginning of the menu can be reached by pressing the key and anew measurement can be carried out Attention Each measurement with subsequent change of valve type has to be completed by pressing the key Data Logging Here several measurements are carried out at different intervals and are stored in the memory of the flow meter as consecutive valve numbers The data logging function is started with the balanced pressure method The command Store is chosen in the menu Store Measurement and the menu Store Measurement is reached by pressing the key OK Apart from name group and number the valve type valve size presetting differen tial pressure and the flow rate are stored This data can be printed via the serial interface Store is reached after having confirmed entry by using the key OK Now choose Data Logging by using the key GW and confirm by pressing the key OK The menu window of Data Logging is reached next Now the clock time in minutes and the number of measurements can be ente red Amaximum of 200 measurements is possible with the free storage locati ons being indicated in the display under Measurements Input has to be confirmed by using the key OK Data logging starts with Start and is confirmed by using the key OK
27. mposed of several regulating groups Each group has to be regulated according to the following sequence of regulation shown on page 15 The group being installed at the most remote location of the circulation pump has to be regulated first To gua rantee a sufficient differential pressure in the last group the group valves preceding should be set to smaller presetting values After having calculated the presetting values by using the flow meter the valves of the regulating group are to be set The presetting values are stored in the flow meter and can be visualised on the display by entering the name of the group To do this the measured values of OV Balance can be listed in a print out 14 oveniron OV Balance Before carrying out the on site regulation it has to be verified whether all shut off valves within the circuit are opened Moreover it must be ensured that the installation corresponds to the design condition e g ther mostatic radiator valves preset thermostatic head removed Sequence of regulation 1 Number the valves of the regulating group all the way through without forgetting or skipping a valve see example of an installation on page 14 2 Set all valves in the regulating group to position half opened The group valve may also be fully opened 3 Measure each valve of the group to be regulated in position half opened and closed by using the flow meter Here the instructions of the flow meter for the se
28. nu win dow by using the key OK Display of presetting 0 0 for closed valve Go to next menu win dow by using the key OK Display of command Store Go to next menu win dow by using the key OK 18 OV BALANCE in object Cellar G 1 0 Hydrocon R DN 25 3 0 preset g 0 0 mbar I h gt STORE lt OVENTROP type Hydrocon R size DN 25 OV BALANCE in object OV BALANCE in object OV BALANCE in object G 1 0 Hydrocon R DN 25 preset g 0 0 mbar I h gt STORE lt OV BALANCE in object Cellar G 1 0 Hydrocon R DN 25 preset g 0 0 mbar I h gt STORE lt OV Balance Group valve User information OV BALANCE Set back valve to former in object presetting e g 3 0 Go to next menu win dow by using the key OK Referring to the following calculation of ali kK HR K K K K K K K K K K dow by using the key OV BALANCE OK p CALCULATE n YES KK KK KKK k k k k k KK Referring to incorrect calculation of the pre setting values valve no 2 probably has to be measured again Go to next menu win dow by using the key OK After successful calculati on the presetting values can be queried according Cellar to the valve numbers e g 1 No 1 valve data of valve 1 0 20 Vh Choice of the valve num 128 0 mbar Hydrocon RDN 20 ber by using the keys presetting 1 5 Change to main menu
29. oveniron Operating instructions Flow meter OV DMC 2 oveniron Contents Page COMENT N 2 General information 22 asocenaarnneenece pare sone seat eens es eae eee are ae docs ado co 3 CliaracisristGin S lt 4 ia LS kee Seas a Ne Le Done capes nr ee ees errant rc 4 Contents of measuring case 4 444 eee eee ess 5 Component Connection diagram ss siihessesiaumensvessedisessadhsstidhsdinnuibersresdenses 6 TECHNICA OAlA seoseis cece wnseet steeee nee ee aoe See SSeS ee nek Hest eee ete eee ease eae 8 Keyboard s 46 ccc aeecese eee eee an oe esse eee eer eee cee es passes beeee teers A E 9 Main Men aa aee sie de es Coed beer eee bees he io an te oo asc ce weed 10 System Setup c c2x ose os bdeces sos cacandes eae eee ee sant bce Garee Bw SS Se ee one we Sa bees 10 Measurement Setup 0 cc ee ee ee eee eee nents 11 NANG OU Se rs tt tesedeeed se eee A RE ii a CR EEE DO Re tro eus 11 Temperature measurement sie due Giant o inde LE san aies ini ie eos 11 Mea s rement ee a 12 Balanced pressure method 212224 piv ceed Sen nes aimes ee lNe Cee eee eds we ew ees 12 Dal OOOING tance ke eee ere eee eet ewe eee ee pee Gea ae eee eee eee tee ee 12 Kv value method 22c2226 ee 2 a eee ee eeu es bane 13 Measurement of Cocon valves and metering stations 13 COMPUIEMIMGINOG 220 ccrtediaceehace teeter a eetenbemadeeeeid eas bors asset asia ie 13 OV Balance Se eee ees Oe es es bee
30. quence of measurement have to be ob served When entering the measured data of the individual valves of a group the sequence of the measurements may be chosen freely but once the numbering of the valves has been determined it has to be observed Measurement of the group valve of the last regulated group in position closed Calculation of presetting values for the valves of the regulating group without group valve by using the flow meter Operating errors and insufficient differential pressures making a calculation of the presetting values impossible are indicated by the flow meter 6 Set the valves of the regulating group according to the presetting values calculated by the flow meter Should further regulating groups exist proceed according to the steps mentioned above 7 Regulation of the last group valve behind the circulation pump by using the computer method Here the total flow rate required for the preceding regulating groups is entered into the flow meter and the required presetting for the group valve is calculated The hydronic balance of the complete supply system is only completed after having set this presetting value at the last group valve o A OV Balance offers the following menu points Measurement Input of the measured data of the individual valves of a regulating group including the group valve with subsequent calculation of the required presetting values See sequence of programme on pages 16 17
31. revious menu e g from menu Measure start to menu Valve Setup after having completed measurement if you perhaps want to correct a wrong entry of the valve size To enter the chosen submenu press the key OK Depending on the chosen menu use the keys gt or to get back to the overriding menu or OK from menus which do not have any submenus oveniron Points of main menu General information If the flow meter is switched on with the measuring head being connected keep key pressed for about 1 sec the main menu appears after a short initialisation Apart from the main menu the symbols or and left corner of the display ey are indicated in the right The symbol indicates that the bypass valve within the measuring head is opened When the symbol I appears the bypass valve is closed and should under no circumstances be connected to a heating circuit In this case please proceed like this A measurement with the measuring head not being connected to the heating circuit is to be carried out and to be con cluded properly so that the bypass valve is opened The measuring head should only then be connected to the heating circuit System Setup English Choice of the language by using the keys GD and Confirm by pressing the key OK Sound s2e eegeeetrae The sound can be switched on or off by using the keys and Light esse The lighting can be swi
32. ss key OK The red control lamp on the flow meter will light up Error messages TEMP MEASUREMENT Il Error No temperature sensor gt Yes lt Il Error No measuring head gt Yes lt Il Error Input error gt Yes lt Il Error Negative pressure gt Yes lt Il Error No power pack gt Yes lt Please contact the company F W Oventrop GmbH amp Co KG in case of malfunction and for any further questions 27 Oventr oD OV DMC 2 item no 106 91 77 with double regulating and commissioning valve Hydrocontrol R OVENTROP UK LTD F W OVENTROP GmbH amp Co KG Unit The Loddon Centre Paul Oventrop StraBe 1 Wade Road D 59939 Olsberg Basingstoke Hampshire RG24 8FL Telefon 49 02962 82 0 Telephone 01256 330441 Telefax 49 02962 82400 Telefax Sales 01256 330525 106917780 Internet http www oventrop de Telefax General 01256 470970 28 06 2001 eMail mail oventrop de E Mail sales oventrop co uk
33. tched on or off by using the keys and Light time The time of lighting is adjustable between 10 s and 60 s by means of the keys and The lighting is reactivated by pressing any key Charging batteries Charging of the batteries is activated by pressing the key OK Memory see menu Store Measurement page 23 Print content View content Clear memory 10 Main menu System Setup SYSTEM SETUP MEASUREMENT SETUP CHOOSE VALVE MEASURE START TEMPMEASUREMENT SYSTEM SETUP English sound on light off lighttime 00 s charge batteries memory oveniron Measurement Setup Measuring method Choice of the measuring methods by using the keys CO and Balanced pressure method kv value method computer method OV Balance Pressure Choice of the unit for pressure indication by using the keys C amp D and Flow Choice of the unit for flow rates by using the keys CO and Water Choice of the medium e g ethylene glycol in the heating circuit by using the keys CD and When using ethylene glycol indicate the percentage composition by pressing the key The indicated value can be modified by using the keys G gt and Cp Connect the temperature sensor to the flow meter An error message see Temperature Measurement page 11 appears if there is no sensor connected Change to temperatur
34. up charge batteries State of charging During the charging operation the battery voltage and the time of charging are indicated If the maximum charging time of 12 hours is exceeded or the charging voltage of 5 8 V is reached the charging operation is automatically completed The charging operation can be interrupted by pressing the keys OK gt or Batteries are changed by sliding out the battery case on the lower side of the computer see pages 6 7 When changing batteries battery polarity and has to be observed Disposal of used batteries should be carried out by commercial waste dis posal departments Display Adjustment of the contrast of the LCD display Switch on flow meter by pressing the key When the name Oventrop appears on the display keep the key pressed until please wait appears Then enter access code appears The access code 1234 has to be entered by using the keys The figures 1234 do not appear on the display only This is followed by a diagnostic menu with the contrast being adjusted by using the keysG and gt and being completed by pressing the key Batteries Display SYSTEM SETUP English sound on light off lighttime 00 s charge batteries memory cell voltage 5 3 V time 00h 00min oventrop Enter access code gt XXXX Diagnostic gt 1 LCD contr down gt x LCD contr up gt lt End by pressing
35. ve size via DO Choice of valve size via Go to next menu win dow by using the key OK Enter presetting of the valve to be added e g 3 0 medium presetting Go to next menu win dow by using the key OK User information Go to next menu win dow by using the key OK User information Go to next menu win dow by using the key OK Display of presetting 0 0 for closed valve Go to next menu win dow by using the key OK OV Balance New valve OV BALANCE in object GE 173 DN O0 OVENTROP type HydroconR size DN 20 OV BALANCE in object G 1 3 Hydrocon R DN 20 3 0 preset g 0 0 mbar I h gt STORE lt OV BALANCE in object OV BALANCE in object OV BALANCE in object G 1 3 Hydrocon R DN 20 3 0 preset g 0 0 mbar I h gt STORE lt 19 Oventr on User information OV BALANCE Go to next menu win in object dow by using the key OK Enter nominal flow rate OV BALANCE for valve no 3 in object e g 500 I h G 1 3 Go to next menu win Hydrocon R DN 20 dow by using the key 3 0 0 0 OK mbar 500 I h gt STORE lt Display of command Store Go to next menu win OV BALANCE in object Celar G 1 3 dow by using the key Hydrocon R DN 20 OK 3 0 preset g 0 0 mbar 500 l h gt STORE lt User information OV BALANCE Set valve back to former in object presetting e g 3 0 Go to next menu win T
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