Multivariable DP flow transmitter
Multivariable dp flow transmitter is generally used together with differential pressure flow device such as V-cone, Orifice-plate, Verabar, Nozzle, Venturi etc. to directly display instant flow and total flow. Compared with the traditional differential pressure flow transmitter, multi-Variable differential pressure flow transmitter greatly reduces the cost of installation and after-sales maintenance. Multi-Variable differential pressure flow transmitter is widely used in petroleum, chemical, electric power, metallurgy, shipbuilding, Pharmacy, textile, papermaking and environmental protection industries.
Descripción del producto
Multivariable DP flow transmitter’s Technical data:
- Suitable for all kinds of Differential pressure flow devices
- Turndown ratio: 1 : 100 (standard configuration), 1 : 200(option) , 1 : 400 (option)
- DP sensor accuracy: 0.5%(option), 0.1%(option), 0.2% (standard configuration)
- Operation temperature for DP sensor: -40 ~ 85℃
- Minimum measurable differential pressure range: 10 ~ 1000 Pa.
- Maximum Static pressure rating: 40 Mpa
- Instant flow display range: 0 ~ 99999 m3/h, Cumulative flow display range: 0 ~99999999 m3
- With temperature and pressure compensation, suitable for the gas media with high temperature or steam
- Power supply: 24VDC, 6V lithium battery (option), Solar energy (option)
- Output: 4-20mA (only suitable for 24VDC powered ), corresponding to Instant flow rate; RS485 (only suitable for 24VDC powered ), user can select either 4-20mA or RS485 (Modbus-RTU). It is not available to select both 4 – 20mA and RS485. It is suggested to select RS485 in case the end user wants to read Multiple variables.
- Explosion-proof: Exd II CT4
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Multivariable DP flow transmitter’s Dimensión:
Multivariable DP flow transmitter’s Wiring:
Multivariable DP flow transmitter’s
Output mode
Multivariable DP flow transmitter’s
Wiring
Pulse output
(3-wire)
Salida de corriente
(4-20mA, 2-wire)
RS485 
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Model:
Multivariable DP flow transmitter’s
Modelo
Multivariable DP flow transmitter’s
Product picture
Remark
Multivariable DP flow transmitter
MDP310-FC1
Without temperature & pressure compensation, be applicable for liquid fluid Multivariable DP flow transmitter
MDP310-FC3
With temperature & pressure compensation, be applicable for gas of Ambient temperature Multivariable DP flow transmitter
MDP310-FC3-V
With temperature & pressure compensation, be applicable for steam
Multivariable dp flow transmitter’s Parameter interface list:
| Interface | Function description |
| K00 | Segment coefficient K00
( Applicable for F ≤ Segment point 1, Segment point 1 = Voltage corresponding to 10% flow rate span ) |
| K01 | Segment coefficient K01
(Applicable for Segment point 1 ＜ F ≤ Segment point 2, Segment point 2 = Voltage corresponding to 17.5% flow rate span ) |
| K02 | Segment coefficient K02
(Applicable for Segment point 2 ＜ F ≤ Segment point 3, Segment point 3 = Voltage corresponding to 25% flow rate span ) |
| K03 | Segment coefficient K03
(Applicable for Segment point 3 ＜ F ≤ Segment point 4, Segment point 4 = Voltage corresponding to 37.5% flow rate span ) |
| K04 | Segment coefficient K04
(Applicable for Segment point 4 ＜ F ≤ Segment point 5, Segment point 5 = Voltage corresponding to 50% flow rate span ) |
| K05 | Segment coefficient K05
(Applicable for Segment point 5 ＜ F ≤ Segment point 6, Segment point 6 = Voltage corresponding to 62.5% flow rate span ) |
| K06 | Segment coefficient K06
(Applicable for Segment point 6 ＜ F ≤ Segment point 7, Segment point 7 = Voltage corresponding to 75% flow rate span ) |
| K07 | Segment coefficient K07
(Applicable for Segment point 7 ＜ F ≤ Segment point 8, Segment point 8 = Voltage corresponding to 87.5% flow rate span ) |
| K08 | Segment coefficient K08
(Applicable for Segment point 8 ＜ F ≤ Voltage corresponding to 100% flow rate span |
| K09 | Instant flow rate unit ( set range: 0, 1, 2, 3 )
0 : m3 (for factory calibration using); 1 : Nm3 (for factory calibration using); 2 : MMSCF /d; 3 : MMSCF /h; |
| K10 | Algorithm selecting ( for manufacturer operating ) |
| K11 | Flow coefficient ( set range: 0 ~ 60000 )
Observación: Manufacturer use special software to calculate the flow coefficient according to the calculation sheet of the throttling elements, then input the calculated flow coefficient in interface K11. |
| K12 | SQRT (square root) ( set range: 0,1, 2, 3, 4 )
0 : No SQRT; 1 : No SQRT x 10; 2 : SQRT; 3 : SQRT x 10; 4 : SQRT x 100 (default) |
| K13 | Differential pressure sensor’s range ( setting range: 0, 1, 2 )
0 : 0 ~ 9.999 Kpa; 1 : 0 ~ 99.99 Kpa; 2 : 0 ~ 999.9 Kpa |
| K14 | Digits of fractional part for instant flow rate ( set range: 0, 1, 2 )
0: No fractional digit; 1: one fractional digit , 2: two fractional digits |
| K15 | Small flow rate cut-off ( set range: 0 ~ 5000 )
Observación: When manufacturer calculating the flow coefficient according to the calculation sheet of the throttling elements, the threshold value of small flow rate cut-off will be automatically calculated, then input the calculated threshold value of small flow rate cut-off at interface K15. |
| K16 | RS485 Communication address ( set range: 1 ~ 255 ) |
| K17 | Baud rate ( set range: 0, 1, 2 )
0: 2400; 1: 4800 , 2: 9600 |
| K18 | Setup instant flow rate corresponding to 20mA ( set range: 0 ~ 60000 )
This parameter interface is only applicable for output:4-20mA |
| K19 | Working mode of transmitter ( set range: 0, 1, 2, 3, 4 )
0 : Display flow rate at the standard condition, time sharing working 1 : Display flow rate at the standard condition, time sharing working and reset 2 : Display flow rate at the standard condition, Real-time working 3 : Display flow rate at the process condition, Real-time working; 4 : Display flow rate at the process condition, time sharing working Remak: Real-time working is applicable for external 24VDC powered, time sharing working is applicable for battery powered. |
| K20 | Temperature test (reserved) |
| K21 | Manually input density compensation ( set range: 0 ~ 600.00 ) |
| K22 | Pressure range’s decimals setting ( set range: 0, 1 ), for manufacturer setting.
0: pressure with 3 decimal places ( Applicable for pressure range ≤10 Mpa); 1: pressure with 2 decimal places ( Applicable for pressure range ＞10 Mpa) |
| K23 | Operation temperature range selecting ( set range: 0, 1 )
0: -50 ~ 150℃; 1: -50 ~ 450℃ |
| K24 | Current output options ( set range: 0, 1 )
0: For instant flow rate at standard condition; 1: For instant flow rate at the process condition. |
| K25 | Pressure sensor’s range setting (setting range: 0 ~ 60000 ) |
| K26 | Zero point of pressure |
| K27 | Full scale of pressure |
| K28 | Zero point of differential pressure |
| K29 | Full scale of differential pressure |
| K30 | Full scale of output current |
| K31 | Damping time (setting range: 0, 1, 2, 3 ) |
| K32 | Range setting of differential pressure sensor |
| K33 | Accumulative flow adjustment (setting range: 0, 1, 2, 3 )
0: The low 6 digits of accumulative flow at standard condition, positive adjustment; 1: The low 6 digits of accumulative flow at standard condition, negative adjustment; 2: The high 6 digits of accumulative flow at standard condition, positive adjustment; 3: The high 6 digits of accumulative flow at standard condition, negative adjustment. |
| K34 | Adjustment value ( relate to K33 ) |
| K35 | Zero point automatic capture |
| K36 | Automatic cut off the offset of zero point |
| K37 | Instant flow rate setting |
| K38 | Linearity correction setting (setting range: 0, 1, 2 )
0: Without compensation; 1: Differential pressure compensation; 2: Flow rate compensation |
| K39 | Time setting for zero point automatic capture and zero point’s offset cut-off, 3.6 second per unit |
| K40 | Calibration mode setting (setting range: 0, 1 )
0: Normal calibration mode 1: Automatic calibration mode |
| K41 | not use |
| K42 | not use |
| K43 | not use |
| K44 | not use |
| Note: User only need setup parameter at interface K11, K15, parameters at other interfaces have been set up before product leaving factory. | |
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