FMD78差壓變送器
- 品牌： E+H
- 型號： FMD78
產(chǎn)品描述
差壓變送器，帶有金屬測量膜片和毛細管膜片密封
抗過載，帶功能監(jiān)測，具有HART, PROFIBUS PA 或FF基金會現(xiàn)場總線通信協(xié)議
優(yōu)點
- 極高的可重復性和長期運行穩(wěn)性
- 高精度： ±0.075%
-
量程比100:1，特殊要求可更高
-
用于流量和差壓監(jiān)測，最高符合SIL3, 由TüV SüD根據(jù)IEC 61508 標準進行認證
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HistoROM®/M-DAT 存儲模塊
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對測量元件和電子模塊進行功能監(jiān)測
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模塊化設(shè)計，可以與差壓、靜壓和壓力測量儀表(Deltabar S, Deltapilot S, Cerabar S)的模塊部件進行互換, 如：
- 可更換的顯示單元
- 通用的壓力和差壓電子模塊 -
通過快速設(shè)定菜單進行快速調(diào)試
-
現(xiàn)場菜單引導式操作
-
廣泛的自診斷功能
應(yīng)用領(lǐng)域
Deltabar S差壓變送器可用于解決以下測量問題：
-
液體的物位、體積或質(zhì)量測量
-
通過多項國際認證
技術(shù)參數(shù)
Continuous / Liquids
Pressure
Measuring Principle Differential pressure Characteristic / Application Digital transmitter with metallic measuring diaphragms diaphragm seals and capillaries
Modular transmitter
Long term stability
Enhanced safety via self diagnostic functions
Secondary process barrier
Supply / Communication 4...20 mA HART:
10,5...45V DC
Ex ia: 10,5...30V DC
PROFIBUS PA /
FOUDATION Fieldbus:
9...32V DC
Accuracy 0,075% + influence of diaphragm seal
Long term stability 0,05% of URL/year
Ambient temperature -40°C...85°C
(-40°F...185°F)
Process temperature -40°C...400°C
(-40°F...662°F)
Process pressure absolute / max. overpressure limit 160bar (2400 psi)
Pressure measuring range 100mbar...40bar
(1.5psi ... 600 psi)
Main wetted parts Alloy C276
316L
Monel
Tantalum
Process connection Diaphragm seal (Pancakes, threads)
Flanges (DIN, ANSI)
Tri-Clamp ISO2852
Hygienic connections
Max. measurement distance 400m (1312ft) H2O
Output 4...20 mA HART
PROFIBUS PA
FOUNDATION Fieldbus
Certificates / Approvals ATEX
FM
CSA
NEPSI
IECEx
SIL
NACE
GL marine
WHG/ Overfill prevention
EN10204-3.1
3A
Options HistoROM/M-Dat
4-line digital display
SS- or Aluminiumhousing
Separate housing
Application limits Measuring cell:
Metal welded
