Microsensor MPM480 Manual de usuario

MPM480

Operation Manual

Contents

1 Introduction .................................................................................... 1

2 Specifications ................................................................................. 3

3 Outline Construction and Installation .............................................. 4

4 Electric Connection ........................................................................ 8

5 Unpacking、Components and Storage ......................................... 14

6 Operation、Maintenance 、Responsibility& Troublesome ............ 15

7 Responsibility ............................................................................... 17

Our company reserves the modification right for this operation manual

due to renovation of production technology and craftwork. If some

information is changed, no more notice will be edited.

Please pay attention to the latest version.

Our company also reserves the right of final explanation for this manual.

Version: V1.0

Thank you very much for selecting Micro Sensor’s product, please take

some time to read this operation manual very carefully before using the

product.

1 Introduction

MPM480 piezo-resistive pressure transmitter is designed by our

company, it adopts the advanced pressure transmitter technology, and

combine with our years of experiences on developing pressure

transmitters. Zero and Span output of MPM480 transmitter can be

precisely calibrated, it has compact size with good accuracy and

stability, and easy adjusting.

As for users’ various requirements, MPM480 pressure transmitter is

available with general version, Explosion-proof version and Ship-use

version.

In which, General version of MPM480 transmitter includes the types for

general use, Flush-diaphragm, Sanitary and Anti-corrosive

applications.

General version of MPM480 pressure transmitter has M20×1.5 or G1/2

male pressure port , it is widely applied for various pressure

measurements and process controls in the fields of petroleum,

chemi-industrial, metallurgy, electric power, light-industry, textile mill,

architecture, hydrography etc.

Flush-diaphragm of MPM480 pressure transmitter has M20×1.5 or “G

1/2” male pressure port , it is suitable for measuring the pressure in

food and medical applications, and possible attaching by the media.

Sanitary MPM480 pressure transmitter has a clamp flange connection

(DN25), it is suitable for pressure measurements in food, beverage,

medicine applications.

Anti-corrosive model MPM480 is made of anti-corrosive materials with

Tantalum isolated diaphragm, Hastelloy C housing and pressure

connection, viton O-ring sealing, thus it has good anticorrosion.

Electrical connection of the transmitters is Plug or Cable connection.

Two-wire MPM480 transmitter with plug connection can have a local

LCD or LED indicator to display current value or pressure value on site.

Explosion-proof version of MPM480 includes Intrinsically safe version

ExiaIICT6 and Flameproof version ExdIICT6, in accordance with

national standard GB3836.1-2010 <<Electrical Apparatus for explosive

gas atmospheres- Part 1:General requirements. >>

Flameproof model in accordance with GB3836.2-2010 <<Electrical

Apparatus for explosive gas atmospheres- Part 2: Flameproof

enclosure “d” >>Regulations, Explosion-proof marked with Exd II

CT6Gb.

Intrinsically safe version in accordance with GB3836.4-2010

<<Electrical apparatus for explosive gas atmospheres -Part 4: Intrinsic

safety “i” >>Regulations, Explosionproof marked with ExiaIICT6Ga.

Ship-use version of MPM480 pressure transmitter in accordance with

the related regulations of CHINA CLASSIFICATION SOCIETY (CCS),

and certified by CCS Tianjin branch, and achieve a Ship-Use

Certificate.

The product is manufactured in accordance with CMC, permits by

manufacture measurement tools or products in P. R. of China,

2 Specifications

Pressure Range: -1bar…0 ~ 100mbar…1000bar

Overpressure:≤ 2 times FS or 1100bar (minimum value is valid)

Pressure Type: Gauge, Absolute or Sealed

Accuracy: ≤±0.25%FS ≤±0.5%FS ≤±1%FS

Note: The precision of products is related to the range of measurement,

and the precision of products in different range is different.

Long-term Stability: ≤±0.2%FS/year

Zero Temperature Drift: ±0.03%FS/℃ (≤100kPa)

±0.02%FS/℃(＞100kPa)

FS Temperature Drift: ±0.03%FS/℃ (≤100kPa)

±0.02%FS/℃ (＞100kPa)

Power Supply:15V~28VDC (intrinsic safe version supplied through

safe barrier)

Signal Output: 0/1V~5VDC (3-wire) 4mA~20mADC(2-wire)

0mA~10/20mADC (3-wire);

Operation Temperature:-30℃~80℃（4-pin Plug、7-pin Plug）

-20℃~70℃（cable material: PE, PVC）

-20℃~80℃ (cable material: PUR)

-10℃~60℃(Intrinsic safety)

-20℃～60℃(Exd)

Storage Temperature:-40℃~120℃，-20℃~85℃（cable type）

Resistance:≤（U-15）/0.02Ω（Current output）;

≥10kΩ（Voltage output）

Pressure Port:M20×1.5 Male

or G 1/2” male

or Clamp (DN25) connection

Housing Protection: IP65

Electrical Connection: Special Plug or Cable 1.5m

Other related device: Intrinsically safe version shall be power supply

via a safe barrier.

Note: Please pay attention for transmitter with LCD or LED, power

supply is 20~28VDC.

3 Outline Construction and Installation

3.1 Construction and Mounting Dimension

Unit:mm

3.1.1 Non flame-proof model (Fig.1)：

SW27

(112)

M20×1.5

26.7

M20×1.5

SW27

（113）

SW27

M20×1.5

(109)

26.7

Fig. 1

3.1.2 Flameproof Version (Fig.2)：

Fig.2

3.2 Installation

3.2.1 Check before Installation

a) The measuring pressure is in the measurement range;

b) The measuring medium is compatible with construction;

c) The measuring medium would not jam the pressure-leading hole.

d) Explosion-proof transmitter must accord with the related regulation

in Part 15 of GB3836.15-2000 Electrical apparatus for explosive

gas atmospheres-Part 15: Electrical installations in hazardous

areas （other than mines）.

3.2.2 Installation Method

Generally, the transmitter shall be installed vertically upwards.

Use MPM480 pressure transmitter with flush diaphragm, the effective

depth of the internal thread should not be less than 15mm. Sanitary

MPM480 pressure transmitter using clamp installation.

Sanitary MPM480 pressure transmitter has a clamp connection.

The transmitter can be directly installed on a flange of the measuring

pipe, in order for easy installation or maintenance, it is recommended

S W 3 0

Φ3 0

M 2 0 X 1 . 5

1 2

111

～

to install a valve between the flange and the pipe.(see Figure 3).

Pressure Transmitter

Valve

Pipe

Fig. 3

3.3 Attenation

a) Don’t stab the pressure leading hole of the pressure port by any

sharp things, and do not touch the diaphragm by your fingers, it

may damage the sensor.

b) Flush-diaphragm transmitter and Sanitary transmitter always has a

plastic protection cover on the pressure port for avoiding any

possible damage on the diaphragm, please do not take it off until

installing the transmitter.

c) For flush-diaphragm version, do not try to use the sealing way of

twisting any sealing tape around the pressure port male of flush

diaphragm transmitter, it may affect the measuring stability or

damage the transmitter.

d) In case the transmitter is operating under thunder or lightning area,

please install an anti-thunder device in the circuits.

4 Electric Connection

4.1 The transmitter is connected with the outside circuit

through plug or special cable.

The pin arrangements of socket are to see Fig. 4, and pin definitions

are as follows：

≈

10A

250V

GDM

VDE

lift

27.5 18

GSP-U

400

33.5

（50）

SW17

Fig. 4

Table 1

2-wire 3-wire

1 +V +V

2 OV/+OUT GND

3 Null +OUT

The electric definitions of cable are as follow：

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