FMD78差壓變送器
- 品牌： E+H
- 型號(hào)： FMD78
產(chǎn)品描述
差壓變送器，帶有金屬測(cè)量膜片和毛細(xì)管膜片密封
抗過(guò)載，帶功能監(jiān)測(cè)，具有HART, PROFIBUS PA 或FF基金會(huì)現(xiàn)場(chǎng)總線通信協(xié)議
優(yōu)點(diǎn)
- 極高的可重復(fù)性和長(zhǎng)期運(yùn)行穩(wěn)性
- 高精度： ±0.075%
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量程比100:1，特殊要求可更高
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用于流量和差壓監(jiān)測(cè)，最高符合SIL3, 由TüV SüD根據(jù)IEC 61508 標(biāo)準(zhǔn)進(jìn)行認(rèn)證
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HistoROM®/M-DAT 存儲(chǔ)模塊
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對(duì)測(cè)量元件和電子模塊進(jìn)行功能監(jiān)測(cè)
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模塊化設(shè)計(jì)，可以與差壓、靜壓和壓力測(cè)量?jī)x表(Deltabar S, Deltapilot S, Cerabar S)的模塊部件進(jìn)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(guò)快速設(shè)定菜單進(jìn)行快速調(diào)試
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現(xiàn)場(chǎng)菜單引導(dǎo)式操作
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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(cè)量問題：
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液體的物位、體積或質(zhì)量測(cè)量
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通過(guò)多項(xiàng)國(guó)際認(rèn)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
