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PMT系列粉尘浓度变送器

陕西正捷工程科技有限责任公司

2017/6/6 8:58:18

PMT系列粉尘浓度变送器
产品型号:  PMT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

两线制4-20mA输出

PMT系列粉尘浓度变送器是一款久负盛名、几乎免维护的一款电荷感应粉尘流动检测产品,能提供连续在线粉尘含量检测和除尘设备粉尘泄漏检测。

 

探头工作原理:采用电荷感应和探头保护技术,当粉尘微粒流经探头附近的时,微弱的电信号感应进入到探头中,一个DSP数字信号处理器处理此感应信号,成为一个线性比例与粉尘威力质量含量的输出值。由于采用了探头保护技术和电荷感应技术,确保该探头能检测各种潮湿粉末和高导电粉尘,传感器为被动型(无电源和电子电路),基本免维护,非常耐用。

 

测量范围:>0.3微米的任何颗粒 探测等级:0.1PA 等效于0.1mg/m3, 0.5PA 等效于0.5mg/m3,5.0PA 等效于5.0mg/m3。

输出:4-20mA

 

优点:

1.比传统的摩擦电原理的粉尘探头具有更高的可靠性

 

2.满足美国国家环保局EPA认证

 

3.对于各种腐蚀、粘稠气体、水比较多,需要仪表本身比较耐磨损和防堵塞的场合.

 

应用场合

 

各种管道气体输送粉料,气体加压运输等以及布袋除尘(收尘设备),高炉余压发电TRT粉尘保护.严格和传统的摩擦电原理粉尘探头区分.

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

选型表

 

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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