DI MPU01 Manual Download Page 45

Pag. 45 of 52

- Main parameters description

Name

Displaying

Description

Menu

Transducers 

mounting 

method

Transducer 

Mounting

The  transducers  may  be 

mounted  on  the  pipe  in  4 

different methods: 

V

Z

N

and 

V

The  mounting  method 

choice is in application con-

ditions function.

The  most  frequently  used 

mounting  methods  are 

V

 

and 

Z

.

M24

Transducers 

mounting dis

-

tance

Transducer Spacing

The  mounting  axial  dis-

tance, 

Lout

,  is  automat-

ically determined based 

on the following previously 

entered data: Ø pipe; pipe 

thickness;  pipe  material; 

eventual  inner  lining  and 

its  thickness;  transducers 

mounting method.

M25

Instantaneous 

flow rate 

measure unit

Flow Rate Unit

Measure units associated with the instantaneous flow rate 

measurement. Is possible to select 8 different measure units for 

the volume: Cubic Meter (m3); Liter (l); US Gallon (Gal); UK Gal-

lon (IGL); Million US Gallon; Cubic Feet (CF); US Oil Barrel (OB); 

UK Oil Barrel (IB); and 4 measure units for the time: 

hour (/h); /min (/m); /sec. (/s); /day (/d)

M31

Flow totalizers 

measure unit

Totalizer Units

Measure units associated with the flow totalizers.

Is possible to select 8 different measure units:

Cubic Meter (m3); Liter (l); US Gallon (Gal); UK Gallon (IGL); 

Million US Gallon; Cubic Feet (CF); US Oil Barrel (OB); UK Oil 

Barrel (IB)

M32

Summary of Contents for MPU01

Page 1: ...r 0 20mA Accuracy 1 Repeatability 0 2 Linearity 0 5 Basic measurement period 500ms Serial port RS485 Communication protocol MODBUS RTU or ASCII opt Programmable frequency output 0 5000Hz Relay output...

Page 2: ...n or at Z mode 1 sonic section The installation method choice depends on the pipe and the fluid characteristics The instrument measures the transit time via the two transducers that alternatively tran...

Page 3: ...e flow rate measurement and separate totalization Data Converter Unit Accuracy 1 Working conditions Temperature 20 85 C humidity 85 non condensing for applications in conditions different from the sta...

Page 4: ...perature 30 90 C Menu 23 19 Clamp On TS 2 TS 2 HT Dimensions Pipe range 20 100mm 4 Temperature 30 160 C Menu 23 19 Clamp On TS 2 TM 1 Dimensions Pipe range 50 700mm 2 40 Temperature 30 90 C Menu 23 16...

Page 5: ...re 30 900 C Menu 23 20 Clamp On TL 1 TC 1 standard Dimensions Pipe range 80 4000mm 3 160 Temperature 40 400 C Max pressure 1 6Mpa 16bar Menu 23 17 Insertion TC 1 TLC 2 for non metallic pipes Dimension...

Page 6: ...ower cables from the DIMPU connection cables 2 Remove the caps from the cable glands and open the cover by unscrewing the screws 3 Lead the cables into the transmitter through the cable glands 4 Close...

Page 7: ...rical connections use a cable with a 6 10mm outer diameter and fully tighten the M18 cable gland Securely close the cover position the cable so that it forms a downward curve at the M18 output Fig 4 i...

Page 8: ...Pag 8 of 52 5 4 TRANSDUCER CONNECTION Electrical connections 5 3 2 Supply voltage in 10 30Vdc Fig 6 Fig 7...

Page 9: ...Pag 9 of 52 Electrical connections 5 5 OUTPUT SIGNALS CONNECTION 5 5 1 Analog output 5 5 2 Pulse output Fig 8 Fig 9...

Page 10: ...Pag 10 of 52 Electrical connections 5 5 3 Relay output 5 5 3 MODBUS port Fig 10 Fig 11...

Page 11: ...ion All configurations set by the user are stored in memory but it s good to make sure that the menu M26 Default Settings is set to 0 Use RAM Settings 6 2 keyboard DIMPU has 4 buttons Press to activat...

Page 12: ...the flow velocity in the pipe One of the best devices is the transducers upstream installation of a fluid threads rectifier which allows to have a straight section length of the pipe less than indica...

Page 13: ...hey may not be completely filled with fluid fig 16 inclined pipes with the downward flow because they may not be completely filled with fluid fig 16 the transducers must never be placed in the highest...

Page 14: ...pipes with diameters in the DN50 250 range Installation 7 4 Z installing Is the installation method for pipes with diameters in the DN300 400 range 7 5 W installing Is the installation method for pip...

Page 15: ...the menu M23 choose the option 17 or 21 TC 1 or TLC 2 insertion transducer in the menu M24 choose 1 Z installation and in the menu M25 check the positioning distance 5 Determine the best location for...

Page 16: ...lose the ball valve to avoid leakage 6 Use a meter or a caliper to measure the A dimension Slowly insert the transducer into the valve support and open the ball valve Measure the distance L between th...

Page 17: ...ck the transducers when the detected power has reached its maximum value always checking that the distance between the two transducers is equal to that indicated in the menu M25 7 7 2 Signal quality Q...

Page 18: ...uge 8 3 Pipe material Value detectable on site or from the technical data of the hydraulic interested programming in M14 8 4 Materiale del rivestimento interno del tubo Value detectable on site or fro...

Page 19: ...9 3 Marking tools To trace on the pipe surface the transducers positioning points are sufficient simple tools but effective at the same time a paper roll piece like that calculators with a width grea...

Page 20: ...oint to a length equal to half the r circumference Next at 180 degrees on the circumference r from point a draw a straight line called D parallel to the straight line S and with equal length The inter...

Page 21: ...the transducer on the pipe surface at the transducer installation point already cleaned 3 Securely fasten with a metal fixing clamp or other the transducer on the pipe WARNING do not overtighten to a...

Page 22: ...ogramming M76 2 Q max alarm programming M24 Transducers mounting method programming M77 Buzzer operation programming M25 Transducers mounting distance displaying M78 OCT output programming M26 Data st...

Page 23: ...w totalizer measurement unit 10 2 4 How to enable and disable the totalizers Use the M34 M35 and M36 menu to enable and disable the forward POS reverse NEG or net NET flow totalizer 10 2 5 How to rese...

Page 24: ...ized volume can be sent as an output pulse The totalizer will generate one pulse per volume unit The pulse totalizer can be generated by the OCT relays or BUZZER hardware devices For example configure...

Page 25: ...change will be saved in EEPROM 10 2 19 How to set the RS485 serial interface Use M62 for setting 10 2 20 How to display the partial totalizers Use M82 to display the partial totalizer daily monthly o...

Page 26: ...rd totalizer POS value 11 03 M03 Instantaneous flow rate and reverse tot displaying Displaying only The display shows the instantaneous flow rate and reverse totalizer NEG value 11 04 M04 Instantaneou...

Page 27: ...s the previously set value By entering a new value the system will automatically calculate the pipe inner diameter new value M13 11 13 M13 Pipe inner diameter programming The display shows the previou...

Page 28: ...shows the previously set value Available only with 11 option selected in M16 11 18 M18 Pipe inner lining thickness programming The display shows the previously set value 11 19 M19 Inner ABS thickness...

Page 29: ...characteristics when 3 option is selected 4 Standard B 5 Insertion B 45 6 Standard L 7 JH Polysonics 8 Standard HS 9 Standard HM 10 Standard M1 11 Standard S1 12 Standard L1 13 PI Type 14 FS410 FUJI 1...

Page 30: ...and other configuration parameters aren t saved or modified 11 27 1 Default setting loading To load a default setting proceed as follows press Select the default setting to be loaded with or and pres...

Page 31: ...neous flow rate measurement unit proceed as follows press Press or to select the volume measure unit and press to confirm Available settings Cubic Meter m3 Liter l US Gallon Gal UK Gallon IGL Million...

Page 32: ...rmation in 2 distinct sub menu is needed It is also possible to reset all totalizer or single totalizer To reset proceed as follows press Select with or YES and press Selecting NO the reset procedure...

Page 33: ...ibration By pressing during the calibration procedure is stopped The digit at the bottom left indicates the remaining reads number for the calibration completion NB During calibration the signal statu...

Page 34: ...to confirm and unlock the programming changes Programming menu 11 48 M48 Calibration data programming Only for headquarters use 11 49 M49 MODBUS serial port test Only for headquarters use 11 50 M50 Da...

Page 35: ...move the cursor to the right with Press to store the data logger interval time Set the data logger recordings number to be made Change the digit with and move the cursor to the right with Press to sto...

Page 36: ...et to 0 4 20mA the measure unit is m3 h with M55 set to 3 4 20mA vs Vel the measure unit is m s 11 58 M58 Analog output simulation In this menu it s possible to force the analog output signal value to...

Page 37: ...ramming In this menu it s possible to set theAL4 analog input beginning and full scale 11 66 M66 AL5 analog input programming In this menu it s possible to set theAL5 analog input beginning and full s...

Page 38: ...et the maximum flow threshold for the 1 alarm 11 75 M75 2 Q min alarm programming In this menu it s possible to set the minimum flow threshold for the 2 alarm 11 76 M76 2 Q max alarm programming In th...

Page 39: ...ramming In this menu it s possible to set the function associated to the relay output Available settings 0 No Signal 1 Poor Signal 2 Not Ready No R 3 Reverse Flow 4 AO Over 100 5 Fo Over 120 6 Alarm 1...

Page 40: ...ossible to display the DIMPU recorded daily monthly and annual events To display the events proceed as follows press Select the events display mode with or Available settings 0 Browse by Day 1 Browse...

Page 41: ...alue x1 Available settings 0 x0 0001 E 4 1 x0 001 1E 3 2 x0 01 3 x0 1 4 x1 5 x10 6 x100 7 x1000 8 x10000 E4 9 x100000 E5 10 x1000000 E6 11 89 M89 Temperature differential displaying In this menu it s...

Page 42: ...alues 11 93 M93 Flight time and delta T In this menu it s possible to display the flight time measured by the DIMPU and the difference in flight times UP DN 11 94 M94 Reynolds number displaying In thi...

Page 43: ...nd press to confirm in the example shown next the PT100 Temperature function Available operations x 1 x abs x x x sqrt x exp x ln x log x power x y sin x cos x arcsin x arccos x arctan x Store in M x...

Page 44: ...Pipe Material Carbon Steel Stainless Steel Cast Iron Ductile Iron Copper PVC Plastics in general Aluminium Asbestos Fiberglass Epoxy Other M14 Inner lining material Liner Material None No Liner Tar Ep...

Page 45: ...material eventual inner lining and its thickness transducers mounting method M25 Instantaneous flow rate measure unit Flow Rate Unit Measure units associated with the instantaneous flow rate measurem...

Page 46: ...the measured flow velocity is less than the cutoff value the display will show the instantaneous flow rate measure at fixed 0 Range 0 000 0 25m s M41 Zero flow calibration Set Zero When the fluid in...

Page 47: ...utput Value Is the instantaneous flow rate value expressed in the above selected measure unit which is associated with the analog output scale beginning 4 or 0mA M56 4 20mA output full scale VALORE RI...

Page 48: ...rameter data error Press ENT key and restore default parameters System Data Memory Error System stored data block error Restart or contact headquarters Circuit Hardware Error Sub CPU circuit fatal err...

Page 49: ...tations 4 Pipe lining too thick 5 The transducer cables are not properly connected 1 Tight the transducers on the pipe 2 Check the setted parameters 3 Clean the pipe surface and remove any rust 4 Chan...

Page 50: ...hour d ddddddE dd CR LF DQM CR Return flow rate per minute d ddddddE dd CR LF DQS CR Return flow rate per second d ddddddE dd CR LF DV CR Return flow velocity d ddddddE dd CR LF DI CR Return POS tota...

Page 51: ...ll be W12345DV CR 13 3 3 N prefix The prefix N is a single byte IDN network prefix not recommended in a new design It is reserved only for the purpose of the compatibility with the former versions Com...

Page 52: ...Documentation subject to technical change with no prior warning...

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