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深圳市德威达科技有限公司
两线制4-20mA输出
产品名称: PMT系列粉尘浓度变送器
产品型号: PMT
两线制4-20mA输出
粉尘浓度检测仪经过一个固定探头的静电荷感应量测量粉尘粒子浓度。粉尘粒子与探头感应产生静电荷,通过探头进行信号放大并传送进监测控制系统。静电荷的大小与粉尘粒子的流量成正比。本系统的高科技电子线路把这部分电荷转换成为控制信号输出,用于连续记录粉尘粒子的总量或浓度
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
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 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 |
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