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Product Overview
MPM4700 level transmitter is the full stainless steel construction and full-sealed submersible intelligent level transmitter with high accuracy. It uses highly reliable and stable pressure sensor, intelligent processing circuit, precise digital temperature compensation and linearity correction technics for production. The water-proof cable connects with housing sealed, with vented tube putting in, the transmitter could be used in the water or liquid in a long time. Integrated construction and standard output signal could provide easy operation and good automatic control. With 2-wire working, compact size, light weight and easy installation and operation, it is widely used for industry field instead of normal 2-wire 4~20mADC analog output transmitter.
Product Features
·4～20mADC 2-wire current output;
·Digital temperature compensation and linearity correction;
·RS485 communication interface(Custom or MODBUS protocol) or HARTcommunication protocol(optional);
·Netting application;
·Full stainless steel construction, compact size, light weight;
·Special requirement available;
·RoHS Certificate
·Intrinsic safe ex-proof version conforming to GB3836.4 ExiaⅡBT6 Ga Regulation; Ex-proof Certificate is issued;
·Marine type products accord with CCS"classification of sea-going steel ships of the rules "(2006) the requirements, has obtained the type approval.
Performance Parameters
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Basic range
（mH2O）
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3.5
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7
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10
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20
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35
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70
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100
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200
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Overpressure
（mH2O）
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5
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10
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15
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30
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50
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100
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150
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300
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Note: The min.shrinked available range is 1/5 of basic range;
For the other pressure range between min.range and max.range, but not indicated on the above table, we enlarge the above basic pressure range to produce (overpressure unavailable)
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Total accuracy ①③
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±0.075%FS (min.) ±0.1%FS (typ.) ±0.25%FS(max.)
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Stability
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±0.2%FS/year
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Compensation temp. ②
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(-10 ～ 70) ℃
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Operation temp.
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(-10 ～ 80) ℃
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Storage temp.
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(-40 ～ 100) ℃
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Power supply
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(10～ 28)VDC (RS485) , (12 ～ 30)VDC (HART ® ),
(10～12)VDC(The Ann model,the security gate power supply)
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Output
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(4 ～ 20)mADC
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RS485 communication interface(Custom or MODBUS protocol) or HART® communication protocol
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Load
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(4 ～ 20) mADC output, (U-10V or 12V) / 0.02A(Ω)
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RS485 bus line could connect with 99 transmitter
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Insulation
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100MΩ/50V
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Shock
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20g ,(20 ～ 5000)Hz
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Impact
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20g ,11ms
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Protection
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IP68(Transmitter part);IP65(Junction box part)
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Media compatibility
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Diaphragm: stainless steel 316L
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Housing: stainless steel 1Cr18Ni9Ti
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O-ring: Viton
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Weight
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~ 160g
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①Total accuracy: including non-linearity, hysteresis, repeatability and thermal error;
②For special temperature requirement, please contact with our company;
③For pressure range 3.5mH2O and 7mH2O, after shrinking, the total accuracy is ±0.5%FS.
Outline Structure
（Unit: mm）
Electrical Connection
Transmitter connecting the outsude by cable or connection box;
Order Guide
Order Note
1. If the user has no special requirement for cable, we provide default PVC cable;
2. If the user has special requirement, please feel free to contact our company.
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