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Summary of Contents for Microsensor MPM4730
- Page 1 MPM4730/4700 Operation Manual...
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Page 2: Table Of Contents
Contents 1 Introduction ..................1 2 Specifications ..................1 3 Outline Construction and Installation ..........3 4 Electric Connection ................8 5 Unpacking、Components and Storage ..........14 6 Operation and Maintenance ............. 15 7 Responsibility .................. 16 Our company reserves the modification right for this operation manual due to renovation of production technology and craftwork. -
Page 3: Introduction
The Explosion-proof version of MPM4700 is an intrinsic safe version, conforming the standard of GB3836.1-2010 and GB3836.4-2010. Explode sign is ExiaⅡBT6 Ga. MPM4730 marine products conform to the requirements of CCS classification specification for steel sea-going ships (2018) and have obtained type approval. MPM4700 marine products conform to the requirements of CCS classification specification for steel sea-going ships (2006) and have obtained type approval. - Page 4 Pressure Type: gauge, absolute, sealed gauge（4730） gauge, absolute（4700） Accuracy: Accuracy: ≤±0.1%FS ≤±0.25%FS ≤±0.5%FS Note: The precision of products is related to the range of measurement, and the precision of products in different range is different. Power Supply: 10V～28VDC(RS485 communication interface) 12V～30VDC(HART communication protocol）...
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Page 5: Outline Construction And Installation
Insulation: 100MΩ／50V Vibration: 20g (20~5000)Hz Shock: 20g，11ms Protection:IP65（4730 B1 & B2）、IP63（4730 B3） IP68（4700 Transmitter part）、P65(Junction box part) Cable: ф7.5mm PVC or polyurethane cable with vented tube Weight: ≤ 250g（4700 No cable） ≤230g（4730） 3 Outline dimension and Installation 3.1 Outline dimension Unit:mm （122）... - Page 6 (50） SW27 SW27 SW27 M20×1.5 M20×1.5 M20×1.5 MPM4730（B1） MPM4730（B2） MPM4730（B3） 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.
- Page 7 products; The pressure interface of the conventional pressure transmitter is M20×1.5 with sealing gasket；To facilitate installation and maintenance， a globe valve should be installed between the flange joint and the pipe,to see figure 1. Pressure Transmitter Valve Pipe Figure 1 3.2.2.2 recommended installation method of liquid level products: Installation in Static Water...
- Page 8 different heights of the pipe for lifting up and down conveniently and making the water going through unobstructed. If necessary, the transmitter could be wrapped by steel wire. Lift up and down with the steel wire to protect the cable. C o n t r o l R o o m El ec t ni ca l C on n ec t io n B ox F ix ed Mo un t...
- Page 9 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. (to see Figure 4）...
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Page 10: Electric Connection
E L e c t n i c a l C o n n e c t i o n Bo x Fig. 5 Air Pocket Damper Fig. 6 4 Electric Connection 4.1 the transmitter is electrically connected with the external circuit through a plug socket or cable... - Page 11 External Plug Connection Internal Definition Plug 4Wires MPM4730 B2 Wires Electric Wiring Color Plug & MPM4700 Plug connection of 1（Red） non-explosion ＋V proof product 2（Black） OUT/GND Black 4（White） RS 485B White 5（Yellow） RS 485A Yellow(Green) Internal External Plug Connection Plug...
- Page 12 P/I Transmitter DC current Load 0V/OUT Input 20mA ～ Fig. 7 b) The electric connection method of transmitter only with RS485 communication to see Figure 8: DC current P/I Transmitter +O U T RS485A Input Safety Com puter RS485B barrier Fig.
- Page 13 4 20mADC ～ 4 20mADC ～ transmitter transmitter Cur rent meter Cur r ent meter Power Vs Power Vs Load RL Load R MS-H375 MS-H375 MS-H A R T 2 3 2 Fig. 9 d) This Ann explosion-proof type electrical connection methods are shown below.
- Page 14 Uo：the highest output voltage, the highest voltage on intrinsically safe circuit when safe barrier’s output side is open. Ii：the max. input current, the max. current which could work on transmitter input terminals. Io：the max. output current, the max. current on intrinsically safe circuit which could be got from safe barrier output terminals.
- Page 15 a) Then the intrinsic safe version transmitter is used in explosive environment, please connect the transmitter with the safe barrier to form Intrinsic Safe Ex-proof System. b) The installation of the intrinsic safe version transmitter should be conformed to the standard of GB3836.15-2000. Part 15 The Regulation of Electric Installation in Hazardous Area (except coal mine) of Electric Equipment Operation in Explosive Gas Environment.
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Page 16: Unpacking、Components And Storage
Transmitter software through RS232/RS485 conversion module, is used to communicate with RS485 interface (including level range, compensated temperature range and version), displaying actual pressure, setting new zero, analog output and transmitter address. The initial address is random, if the user needs to reset the address, please notify us or reset it after receiving the product. -
Page 17: Operation And Maintenance
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. -
Page 18: Responsibility
a) Please check the cable connection often and make sure the cable connection reliably and no aging. b) Please clean the steel cap and diaphragm cavity according to the measuring media. (take care!) c) Please do not pull the cable violently or press the diaphragm with sharp or hard metal, etc.
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