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陜西正捷工程科技有限責(zé)任公司>>技術(shù)文章>>PMT系列粉塵濃度變送器

PMT系列粉塵濃度變送器

閱讀:1681        發(fā)布時間:2017-6-6

PMT系列粉塵濃度變送器
產(chǎn)品型號:  PMT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

兩線制4-20mA輸出

PMT系列粉塵濃度變送器是一款久負盛名,、幾乎免維護的一款電荷感應(yīng)粉塵流動檢測產(chǎn)品,能提供連續(xù)在線粉塵含量檢測和除塵設(shè)備粉塵泄漏檢測,。

 

探頭工作原理:采用電荷感應(yīng)和探頭保護技術(shù),,當(dāng)粉塵微粒流經(jīng)探頭附近的時,,微弱的電信號感應(yīng)進入到探頭中,,一個DSP數(shù)字信號處理器處理此感應(yīng)信號,成為一個線性比例與粉塵威力質(zhì)量含量的輸出值,。由于采用了探頭保護技術(shù)和電荷感應(yīng)技術(shù),,確保該探頭能檢測各種潮濕粉末和高導(dǎo)電粉塵,傳感器為被動型(無電源和電子電路),,基本免維護,,非常耐用。

 

測量范圍:>0.3微米的任何顆粒 探測等級:0.1PA 等效于0.1mg/m3,, 0.5PA 等效于0.5mg/m3,,5.0PA 等效于5.0mg/m3。

輸出:4-20mA

 

優(yōu)點:

1.比傳統(tǒng)的摩擦電原理的粉塵探頭具有更高的可靠性

 

2.滿足美國國家環(huán)保局EPA認證

 

3.對于各種腐蝕,、粘稠氣體,、水比較多,需要儀表本身比較耐磨損和防堵塞的場合.

 

應(yīng)用場合

 

各種管道氣體輸送粉料,氣體加壓運輸?shù)纫约安即龎m(收塵設(shè)備),高爐余壓發(fā)電TRT粉塵保護.嚴格和傳統(tǒng)的摩擦電原理粉塵探頭區(qū)分.

特性:

 

Service: Air and compatible gases, any type particulate conductive or nonconductive.
Wetted Materials: 304 SS and PTFE.
Air Velocity Range: 300 ft/min and higher.
Minimum Detection: Standard: 10.0 pA, Optional: 5.0 pA and 0.5 pA.
Temperature Limits: Ambient: -15 to 160°F (-25 to 70°C); Process: Standard: -40 to 250°F (-40 to 120°C); Optional: -40 to 450°F (-40 to 232°C).
Pressure Limit: 10 psi (0.69 bar).
Power Requirement: 18-28 VDC (24V Nominal).
Output Signal: 4-20 mA.
Loop Resistance: 300 Ohms maximum.
Current Consumption: Powered from 4-20 mA loop.
Electrical Consumption: Terminal Block.
Process Connection: See Model Chart on .
Enclosure Rating: Weatherproof, NEMA 4X (IP 66).
Mounting Orientation: Any.
Weight: Varies with length of probe and type of mount.
Agency Approvals: CE Ordinary locations only, CSA

選型表

 

EXAMPLE

PMT

A1

1

T1

P1

1

L1.5

PMT-A11T1P1-L1.5 Particulate Transmitter, ordinary/general purpose locations,

CE approval, NEMA 4X, CSA, , 1/2" NPT connection, 250°F max. temp., 10 psi

max. pressure, 10.0-5000 pA, 1.5" probe.

SERIES DESIGNATOR

PMT

 

 

 

 

 

 

PMT Particulate Transmitter (1-piece configuration, sensor included in price)

ENCLOSURE RATING

 

A1

 

 

 

 

 

Ordinary/General Purpose Locations, CE Approval, NEMA 4X, CSA

AHZ2

Hazardous Location, CSA Approval, Class I, Division II, Groups A-D; Class II,

 

Groups F,G

PROCESS CONNECTION

 

 

1

 

 

 

 

1/2" NPT

2

1.5" Quick Clamp Connection

3

2" 150# ANSI Flange

4

2" 150# ANSI Flange with Process Mating Flange and Installation Kit.

MAXIMUM PROCESS

 

 

 

T1

 

 

 

250°F (121°C)

TEMPERATURE

T2

450°F (232°C)

MAXIMUM PROCESS

 

 

 

 

P1

 

 

10 psi

PRESSURE

RANGE

 

 

 

 

 

1

 

10.0-5000 pA

2

5.0-5000 pA

3

0.5-5000 pA (required for low levels or EPA leak detection)

INSERTION LENGTH

 

 

 

 

 

 

L1.5

1.5" Probe

(recommended at

L03

3" Probe

least 1/2 duct diameter)

L05

5" Probe

 

L10

10" Probe

 

L15

15" Probe

 

L20

20" Probe

 

L30

30" Probe

 

L36

36" Probe

 

 

 

 

 

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