Download
Share
Print this page
  1. Manuals
  2. Brands
  3. 2Flow Manuals
  4. Measuring Instruments
  5. MAG-11 Series
  6. Instruction manual

2Flow MAG-11 Series Instruction Manual

Electromagnetic heat meter
Hide thumbs

Advertisement

Quick Links

Download this manual
Electromagnetic Heat Meter
MAG-11 Series
Instruction Manual
Please read this manual carefully and use the product correctly on the basis of full understanding.

Advertisement

loading
Need help?

Need help?

Do you have a question about the MAG-11 Series and is the answer not in the manual?

Questions and answers

Related Manuals for 2Flow MAG-11 Series

Summary of Contents for 2Flow MAG-11 Series

  • Page 1 Electromagnetic Heat Meter MAG-11 Series Instruction Manual Please read this manual carefully and use the product correctly on the basis of full understanding.
  • Page 2 CONTENTS 1. Preface ..........................1 1.2 Disclaimers ........................2 2. Acceptance, storage and transportation ................. 2 2.1 Unpacking inspection ....................2 2.2 Storage .......................... 2 2.3 Carry ..........................2 3. Product overview ........................ 3 3.1summary ......................... 3 3.2 Product features ......................3 3.3 Working principle of heat metering ................
  • Page 3 8.4 Operation examples ....................27 8.4.1 Example of password setting ................28 8.4.2 Enumeration type parameter setting example ............ 29 8.4.3 Example of parameter setting with fixed or no decimal point ......31 8.4.4 Example of parameter setting with non fixed decimal point ......32 8.4.5 Example of mixed alpha numeric parameter setting .........
  • Page 4 ● All rights reserved. Without the written consent of 2 flow AB, no part of the manual can be copied in any form. ● 2Flow AB makes no guarantee in any form for this manual, including but not limited to the sale of this manual and its use for other special purposes.
  • Page 5 1.2 Disclaimers The following situations do not belong to product liability: (1) Damage caused by customers' negligence or lack of maintenance of products. (2) Problems or damage caused by violation of relevant regulations during operation, operation and storage. (3) Problems or damage caused by natural disasters and other external factors. (4) Problems or damage caused by repair or modification by personnel not authorized by the company.
  • Page 6 3. Product overview 3.1summary MAG-11 electromagnetic heat meter (hereinafter referred to as "heat meter") is a product integrating the measurement of air conditioning water flow, heat and temperature difference, which is suitable for cold / hot water air conditioning billing system. The converter, electromagnetic flow sensor and supply / return water temperature sensor form a heat meter.
  • Page 7 Screen display: dot matrix LCD is used, and the panel information is complete. Under different panels, positive and negative flow, cold and heat, alarm information, temperature sensor status and other contents can be displayed, and a variety of parameter settings can be carried out. The screen supports 90゜, 180゜, 270゜. Safety protection: the standard protection grades of sensors and calculators are IP65, IP67 and IP68.
  • Page 8 When the media is other: Power calculation p=q×ρ×∆T×H Q is the measured flow; Ρ is the set medium density; H is the set enthalpy of medium; ∆T=|Ts-Tr|. The power measurement mode is divided into heating mode (heat), cooling mode (cold) and automatic judgment mode (auto), which are calculated according to the rules in the following table: Table 3 - 1 Calculation rules of heat and cooling capacity31 Power...
  • Page 9 Through parameter setting, it can be set to For Modbus protocol, see 9.5rs485 communication function (MODBUS-RTU) for detailsFel! Hittar inte referenskälla.Fel! Hittar inte referenskälla. For BACnet protocol, see 9.6rs485 communication function (BACnet ms/tp) for detailsFel! Hittar inte referenskälla.Fel! Hittar inte referenskälla. 4.2.1.4 Bluetooth communication Support Bluetooth 4.0 communication of Android 6.0 and above systems,and use MODBUS-RTU protocol.
  • Page 10 Figure 4 - 3 Schematic diagram of external dimensions of threaded calorimeter41 Table 4 - 5 dimension table of threaded sensor41 Normal Measuring tube Total length diameter length L DN10 G 3/4 R 1/2 DN15 DN20 R 3/4 DN25 G 1 1/4 DN32 G 1 1/2 R 1 1/4...
  • Page 11 4.4 Temperature sensor El= insertion depth, AI= cable length, M= mounting accessories, D= sheath outer diameter Product standard DIN EN 60751 (according to IEC 751) Sensor PT1000 Two-wire system ± 0.15 ℃ Measurement accuracy Four wire system ± 0.1 ℃ Measuring range: 0 ~ 105 ℃...
  • Page 12 5.2 Pipe section meeting the working conditions of flow sensor 5.2.1 The upstream and downstream straight pipe sections shall be of sufficient length 5.2.1.1 The minimum allowable length of the upstream straight pipe section of the sensor is 5dn and the downstream is 2DN (DN is the pipe diameter) Single elbow full open gate valve or ball valve 5.2.1.2 When there are spoiler components (half open valve, regulating valve, stop valve, etc.) upstream, the length of the straight pipe should be extended...
  • Page 13 cannot display the measured value normally. Raise the outlet end of the downstream pipe section to ensure full pipe. The flow direction is from bottom to top, which can ensure the full pipe. Det gick inte att hitta bilddelen med relations-ID rId24 i filen.
  • Page 14 5.2.4 In the pipe section where the measuring pipe is located, the fluid conductivity should remain stable important In the case of upstream chemical injection, the fluid conductivity may fluctuate violently, thus affecting the normal operation of the flow sensor. To avoid this situation, it is recommended to change the injection port of chemical substances to the downstream side of the flow sensor.
  • Page 15 5.4 Installation instructions 5.4.1 welding The pipe flange for installing the flow sensor should be welded before the instrument is in place. Electric welding is prohibited after the instrument is in place; After the instrument is installed, when welding is required at other positions of the pipeline, the power supply of the instrument must be disconnected first.
  • Page 16 important The electrode shown in the above figure on the right is located at the top of the measuring tube, and the bubbles released from the medium will cause the electrode to be insulated from the medium for a short time, thus making the measurement result wrong.
  • Page 17 important Sufficient operating space shall be reserved at the installation position of the converter to facilitate wiring and connecting conduit. When wall hanging is installed, enough length of cable shall be reserved. 6. Grounding The instrument housing and the medium must be grounded together. Figure 6 - 1 Schematic diagram of instrument grounding61 6.1 Metal pipe Connect the grounding of the instrument shell with the pipe flange by wire.
  • Page 18 6.2 Non metallic pipe Grounding ring or grounding electrode must be used. Grounding connection of flow meter with grounding ring on nonmetallic pipe. Figure 6 - 5 Schematic diagram of non-metallic pipeline instrument grounding63 notes The grounding mode of the three electrode sensor is shown in Figure 6 - 1. 7.
  • Page 19 7.1.2 Input / output signal cable In order to ensure the sealing performance of the instrument access hole, the single hole sealed cable should be a round multi strand sheathed cable with an outer diameter of 6 ~ 10mm, and the double hole sealed cable should be a round multi strand sheathed cable with an outer diameter of 3 ~ 5mm, with a copper core cross- sectional area of 0.5 ~ 1.5mm2.
  • Page 20 If the signal cable provided with the product is found to be too short, please contact our company for replacement. It is forbidden to lengthen it at will. If the signal cable is too long in practical application, please do not wind it up; If you need to cut it short, please handle the thread end as shown in the above figure.
  • Page 21 Be careful The power supply and signal cables of the heat meter are allowed to be exposed, but they must be protected from external factors; Please keep the signal cable and excitation cable of the split heat meter away from high-power appliances and frequency converters as far as possible.
  • Page 22 Table 7 - 1 description of power terminals71 220V AC power supply mode 24V DC power supply mode Terminal symbols meaning Terminal symbols meaning 220V AC L 24V DC + 220V AC N 24V DC - Table 7 - 2 description of flow sensor terminals72 Terminal symbols meaning EMF signal input...
  • Page 23 7.3.3 Wiring between converter and sensor (split heat meter) important The connection terminals of the converter are plug-in type. First connect the wire head to the plug and tighten it. After checking it, insert the plug into the corresponding terminal base.
  • Page 24 7.3.4 Connection between converter and external instrument The cable shall be connected to the terminal after crimping the end of the insulated straight pipe. 7.3.4.1 Flow and heat current output 7.3.4.2 Flow and heat passive pulse output important ● as it is a transistor node output (isolated type), please pay attention to the voltage and power polarity when wiring.
  • Page 25 7.3.4.3 RS485 output 7.3.4.4 Temperature sensor wiring Two wire temperature sensor wiring: Four wire temperature sensor wiring:...
  • Page 26 7.3.5 Power cable wiring Protective grounding Before the power cable is connected, the instrument shell should be grounded to ensure the safety of operators. The grounding wire should use 600V insulated wire, the cross-sectional area of the wire should be greater than 2mm2, and the grounding resistance should be less than 10 Ω.
  • Page 27 8. Panel operation and display 8.1 Panel and key description Figure 8 - 1 panel and keys81 Table 8 - 1 key description81 name Key function Measurement interface Parameter setting Record interface queryinterface Click move Enter parameter Enter parameter setting or Move cursor, right →...
  • Page 28 8.2 Real time data display interface 8.2.1 Measurement interface display date(year/month/day) time warning number flow 2020/01/01 19:04:15 ! unit Flow+99999 m Accumulation number Accumulation sign 41043.40m ∑ figure 8-2 flow data interface time date(year/month/day) warning power Power sign 2020/01/01 19:04:15 ! unit Heat99999 kW Accumulation power...
  • Page 29 8.2.2 Description of interface display items Date (year / month / day): display format xxxx/xx/xx Time (H / min / s): display format xx/xx/xx Instantaneous flow: see Appendix E for terms and expressions. Fel! Hittar inte referenskälla. Cumulative flow (∑ +: positive cumulative flow, ∑ -: negative cumulative flow): see Appendix E for terms and terms.
  • Page 30 8.3 Menu list There are 6 menus available to users, including basic, system, power, query, test and calibration: Figure 8 - 6 available menus of heat measurement mode (1)85 Figure 8 - 7 available menus of heat measurement mode (2)86 When entering the advanced setting state, the user can add two items of detail and special in the operation menu.
  • Page 31 8.4.1 Example of password setting 2020/01/01 19:04:15 ! Flow+99999 m 41043.40m ∑ Figure 8 - 9 arbitrary measurement interface88 Click the → key in any measurement interface to enter the menu selection page. Figure 8 - 10 menu selection page89 Click the ↓...
  • Page 32 Figure 8 - 13 changing the selected position812 Click the ↓ key to modify the selected number. Figure 8 - 14 changing the selected number813 After entering the correct password, click the ← key to confirm the input and enter the menu.
  • Page 33 Figure 8 - 17 entering the basic menu815 Click → to enter the PV units setting interface. Figure 8 - 18 PV units setting interface816 Click ↓ to change the options. Figure 8 - 19 change options Click ← to jump out of the confirmation screen. Figure 8 - 20 confirmation screen817 Click ←...
  • Page 34 Figure 8 - 21 exit to basic menu 8.4.3 Example of parameter setting with fixed or no decimal point Take system->signal->low cutoff% as an example, click → in any measurement interface to enter the menu selection interface, and click ↓ to select the system menu. Figure 8 - 22 select system menu818 Click →...
  • Page 35 Figure 8 - 26 changing the selected position821 Click the ↓ key to modify the selected number. Figure 8 - 27 modify the selected number822 Click ← to jump out of the confirmation screen. Figure 8 - 28 confirmation screen823 Click ←...
  • Page 36 Figure 8 - 30 select system menu824 Click → enter the password to enter the system menu, click ↓ and select signal. Figure 8 - 31 entering the system menu825 Click → to enter the signal submenu and select Qmax. Figure 8 - 32 entering the signal submenu826 Click →...
  • Page 37 Figure 8 - 34 changing the selected position827 Click the ↓ key to modify the selected number. Figure 8 - 35 modify the selected number828 Click the → key to change the selected position to select the decimal point. Figure 8 - 36 select decimal point829 Click ↓...
  • Page 38 Figure 8 - 39 exit to signal menu 8.4.5 Example of mixed alpha numeric parameter setting With Take detail ->bluetooth name as an example, click on any measurement interface → enter the menu selection interface, and click ↓ to select the detail menu. Figure 8 - 40 select the detail menu831 Click →...
  • Page 39 Figure 8 - 43 changing the selected position Click the ↓ key to modify the selected numbers or letters. The modification range is numbers 0 ~ 9, capital letters a ~ Z, symbols ",", "-", "". Figure 8 - 44 modify the selected numbers or letters834 Click ←...
  • Page 40 The so-called "zero adjustment" is to record the current zero value inside the instrument through the steps in 9.1.2, so that the measurement result of the instrument at the "0m/s" flow rate is set to "0". 0 After the instrument is put into operation, the measured value is unstable or has large error.
  • Page 41 Figure 9 - 2calibration menu92 Click → to enter the setting interface, set the option to yes, and click ← twice to enter the zero setting confirmation interface Figure 9 - 3 zero setting confirmation interface93 Click → return to the measurement interface, and click ← to start the instrument zeroing.
  • Page 42 Figure 9 - 5 menu selection interface95 Select the clear total option to clear the accumulation, or select the clear log option to clear the report Figure 9 - 6detail menu96 Click → to enter the setting interface, set the option to yes, and click ← twice to clear it successfully 9.3 Report query Enter the query menu.
  • Page 43 different dates. Data time switching: press the ↓ key to turn the page and display the instantaneous values at different times. Exit: press the ↓ key to return to the main page of report query. 9.3.2 Σ flow cumulative flow query Cumulative flow item unit Fwd.FlowAcc_Hourly...
  • Page 44 Cumulative heat item: optional cumulative value heat ac with heat_Hourly, cumulative value of cooling capacity clodacc_Hourly, daily cumulative value of heat heatac_Daily, daily accumulated value of cooling capacity clodacc_Daily, monthly cumulative value of heat heatac_Monthly, monthly cumulative value of cooling capacity clodacc_Monthly, annual cumulative value of heat heatac_Yearly, annual cumulative value of cooling capacity clodacc_Yearly.
  • Page 45 9.3.6 Alarm record query Alarm log Recording serial number Recording date Recording serial number Recording date Figure 9 - 13 alarm record query interface913 Record serial number: provide up to 100 pieces of power on and power off information. OFF means over，ON means start.Fel! Hittar inte referenskälla. 9.4 Empty and full pipe functions 9.4.1 Significance of ATC function The heat meter cannot work normally without medium, so it is necessary to judge whether...
  • Page 46 ↓→Zero Trim ↓→Output Trim → ↓→Tube Trim → Figure 9 – 15calibration menu Select empty trim option for empty pipe calibration, full trim option for full pipe calibration, and tube region option to set empty pipe sensitivity ↓→Empty Trim ↓→Full Trim →...
  • Page 47 0x1C:m3/s 0x83:m3/m Instantaneous flow 0x13:m3/h 0x03 0x06 0x0042 0x0001 unit 0X18:L/s 0X11:L/m 0X8A:L/h 0x7F:kW 0xF6:MW 0xF4:kJ/h 0x8D:MJ/h 0x03 0x06 Power unit 0x062E 0x0001 0xF5:GJ/h 0xEA:cal/h 0xF8:kcal/h 0x8C:Mcal/h 0～9999999 long 0x03 0x10 Sensor number 0x0127 0x0002 0.0001～ float 0x03 0x10 Range FS 0x014B 0x0002 99999...
  • Page 48 ulong 0x03 Daily accumulated Fixed unit wh 0x0217 0x0002 cooling capacity ulong 0x03 Monthly Fixed unit wh 0x0219 0x0002 accumulated cooling capacity ulong 0x03 Annual Fixed unit wh 0x021B 0x0002 accumulated cooling capacity float 0x03 Instantaneous flow Fixed unit 0x0401 0x0002 m3/h Fixed unit ℃...
  • Page 49 Set the Modbus address as 1, check the communication parameter table, and the data address of the high bit of the positive cumulative flow value is 0x0201, the length is 0x0002, and the data type is long. Send the command as follows: Table 9 - 5 example of reading high-order transmission data Format send content...
  • Page 50 Table 9 - 9 485 communication parameter setting items Set item Description Options / value range Default explain value Communicatio MODBU Protocol MODBUS,BACNET n mode Baudrat 1200,2400,4800,9600,19200,3840 Baud rate 9600 Fixed to DataBit Data bit Verification Parity None,Odd,Even None method Select 1 or 2 for check...
  • Page 51 Table 9-12 instantaneous flow unit Flow rate Unit BACNET Enum m3/h m3/min m3/s Table 9 - 13 heat units Power Total unit BACNET Enum 126(Provisional) 126(Provisional) Table 9 - 14 power units Power rate Unit BACNET Enum kJ/h 17(Provisional) MJ/h 126(Provisional) GJ/h 126(Provisional)
  • Page 52 displayed first, and the deci digits will be reduced according 10.2 cumulative flow data Cumulative System Total Units m3,L,mL displayed after convers flow unit (system according to this configuration. The decimal digits of the cumula flow data value are displa according to this configuration, Totalizer Cumulative...
  • Page 53 is used to eliminate interference at low flow rate. The threshold value is calculated according to the range and small signal cut-off value. Output signal output Current Loop Out output Current FLOW,POWE When selecting power, you need to Loop POWER output set the maximum power value.
  • Page 54 currently in heat or cold metering. Pressure options Setting according to the Pressure actual working conditions 0.6MPa,1.6MPa 0.6MPa will affect heat calculation. 10.4 Query (report query) See 9.3 report query for details. 10.5 Test Table 10 - 4 test (default password 0004) Options / Default Set item...
  • Page 55 It is used to set the boundary between empty pipe and full pipe. The higher the sensitivity, Sensitivity the easier it is to judge as empty 0～99 Tube Region% traffic pipe. When there is air in the control (%) pipe, it is necessary to set the sensitivity higher.
  • Page 56 and reverse flow: the actual forward flow is displayed as reverse flow, the actual reverse flow is displayed as forward flow, and the cumulative amount is also calculated according displayed direction. Power Set Power setting When selecting water, the heat meter will calculate the heat according to the density and enthalpy of water at various...
  • Page 57 Clear Clear the accumulated value of Clear Total accumulation flow and heat. Save factory Save the current settings as Save Settings parameters factory settings. This name will be displayed when Bluetooth Bluetooth mobile searches Name name Bluetooth. The password that needs to be Bluetooth Bluetooth PW 0000...
  • Page 58 Instrument Used to set the current instrument Function FLOW POWER function mode. Reset Reset the password of all interfaces to Password Reset Password the default value. 2FLOW AB GARNISONSVÄGEN 30 28135 HÄSSLEHOLM, SWEDEN +46 (0) 451 223 00 www.2flow.se...