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Summary of Contents for Microsensor MPM4730
- Page 1 MPM4730/4700 Operation Manual V2.0...
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Page 2: Specification
1 Introduction MPM4730/4700 Intelligent Pressure Transmitter is the intelligent pressure/level measurement instrument. Using the most advantaged technologies and the latest achievements in scientific research in the world, it is famous for its compact size, good stability and wide range. - Page 3 Accuracy: ±0.075%FS (min.), ±0.1%FS (typ.), ± 0.25%FS (max.) (4730: Table pressure ≤20KPa and negative pressure and absolute pressure ≤500KPa product accuracy ±0.5%.) (4700: 3.5mH2O and 7mH2O liquid level transmitters are integrated after range scaling，The accuracy is typically ±0.5%FS.); Note:synthetic precision includes nonlinearity,hysteresis, repeatability and temperature error.
- Page 4 IP68（4700 Transmitter part） 、P65(Junction box part) Cable: ф7.2mm PVC or polyurethane cable with vented tube Weight: ~ 250g（4700 No cable） ~160g（4730） 3 Outline dimension and Installation 3.1 Outline dimension (Unit:mm) MPM4700 (50） SW27 SW27 SW27 M20×1.5 M20×1.5 M20×1.5 MPM4730（B1） MPM4730（B2） MPM4730（B3）...
- Page 5 3.2 Installation 3.2.1 Please be sure before Installation: a) The measuring pressure is in the measurement range; b) The measuring medium is compatible with construction material; c) The measuring medium would not stop up the pressure-leading hole. 3.2.2 Installation Method Usually the transmitter should be mounted vertically up to the horizontal direction.
- Page 6 Pressure Transmitter Valve Pipe Figure 1 3.2.2.2 recommended installation method of liquid level products: Installation in Static Water a) The installation method in the pool to see Figure 2.To protect the transmitter, it should be mounted far away from the pumping in/out source to prevent the pumping impact;...
- Page 7 Fig. 2 Fig. 3 Installation in the flowing water (e.g. river-way or reservoir) need water calming device. a) Inserting steel pipe in the water channel , The steel pipe should be thicker, and several little holes should be made at different heights of the pipe to damp wave and reduce water moving effect.
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Page 8: Electric Connection
Fig. 6 4 Electric Connection 4.1 the transmitter is electrically connected with the external circuit through a plug socket or cable External Plug Connection Internal Definition Plug 4Wires MPM4730 B2 Wires Electric Wiring Color Plug & MPM4700 Plug connection of ＋V 1（Black）... - Page 9 Internal External Plug Connection Plug Definition 4Wires MPM4730 B2 7 Wires Wiring Plug & MPM4700 Plug Electric Color connection of ＋V 1（Black） Black explosion OUT/GND 2（Red） proof product Case 3（Blue） Blue RS485B 4（White） White RS485A 5（Yellow） Yellow(Green) Note: Explosion-proof product of 4-pin plug connection only provide (4 ~ 20) mA DC output 4.2 Typical electrical connection method...
- Page 10 Transmitter 10～28V DC Black/+V Red/+OUT Input Yellow(Green)/RS485A Safety Computer White/RS485B barrier Fig. 8 Note: when 4mA ~ 20mA DC output and RS485 signal are used at the same time, RS485 signal will affect 4mA ~ 20mA DC output signal in communication, and the degree of influence is related to communication rate and communication frequency.
- Page 11 Danger zone Safety zone Black/+V Safety Power barrier Red/+0UT Load P input Blue Yellow(Green)/RS485A Safety Computer barrier White/RS485B Fig. 10 ExiaIIBT6 Ga [Exia]IIC Safe barrier’s ex-proof parameter: Transmitter Ex-proof parameter: Ui:12.4VDC Ii:140 mADC Uo:12.4VDC Io:140mADC Po:0.43W Li:0μH Ci:1.049μF Pi:0.43W Note： Ui：the highest input voltage, the highest voltage which could work on transmitter input terminals.
- Page 12 could be connected with safe barrier output terminals. Li：the max. internal inductance, the internal equal total inductance which could exist on transmitter input terminals. Lo：the max. external inductance, the biggest inductance which could be connected with safe barrier’s terminals. 4.3 Installation notes There is a plastic tube inside the cable, it is used to connect gauge sensor with the atmosphere.
- Page 13 RS485 interface, display actual pressure, set new zero, and analog output and transmitter address. Note: “MS Setonline” software could be downloaded from our website www.microsensor.cn b) Software for HART transmitter:HART CONFIG Tool software Through MS-HART232 conversion module, the user could ...
- Page 14 Please be sure do not knock at the package violently, and protect the housing jacket and rubber bushing. 5.2 Shipment Enclosed Transmitter out should include: MPM4730/4700 Intelligent pressure/level Transmitter Special Cable （connect to transmitter） the length due to the order Connection Box（connect to transmitter）...
- Page 15 15min and put into operation. 6.2 Maintenance MPM4730/4700 intelligent pressure/level transmitter does not need regular maintenance. However, please pay attention to the following items for better operation. a) Please check the cable connection often and make sure the cable connection reliably and no aging.
- Page 16 additional error. 6.3 Responsibility Within one year from the delivery date, we shall repair or replace the instrument with any quality fault caused by material parts or our manufacturing technique. For non-quality malfunction during user’s operation, we are in charge of repair. But the material cost and the shuttle transportation fees should be borne by users.
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