產(chǎn)品名稱: PMT系列粉塵濃度變送器
產(chǎn)品型號(hào): PMT
兩線制4-20mA輸出
粉塵濃度檢測(cè)儀經(jīng)過(guò)一個(gè)固定探頭的靜電荷感應(yīng)量測(cè)量粉塵粒子濃度。粉塵粒子與探頭感應(yīng)產(chǎn)生靜電荷，通過(guò)探頭進(jìn)行信號(hào)放大并傳送進(jìn)監(jiān)測(cè)控制系統(tǒng)。靜電荷的大小與粉塵粒子的流量成正比。本系統(tǒng)的高科技電子線路把這部分電荷轉(zhuǎn)換成為控制信號(hào)輸出，用于連續(xù)記錄粉塵粒子的總量或濃度
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 Ordering Page.
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 AHZ2 | | | | | | Ordinary/General Purpose Locations, CE Approval, NEMA 4X, CSA Hazardous Location, CSA Approval, Class I, Division II, Groups A-D; Class II, Groups F,G |
| Process Connection | | | 1 2 3 4 | | | | | 1/2" NPT 1.5" Sanitary Connection 2" 150# ANSI Flange 2" 150# ANSI Flange with Process Mating Flange and Installation Kit. |
| Maximum Process Temperature | | | | T1 T2 | | | | 250°F （121°C） 450°F （232°C） |
| Maximum Process Pressure | | | | | P1 | | | 10 psi |
| Range | 1 2 3 | 10.0-5000 pA 5.0-5000 pA 0.5-5000 pA （required for low levels or EPA leak detection） | ||||||
| Insertion Length （recommended at least 1/2 duct diameter） | | | | | | | L1.5 L03 L05 L10 L15 L20 L30 L36 | 1.5" Probe |
