SETRA壓力變送器268系列技術(shù)參數(shù)
Performance Data | |||
Parameter | Standard | Optional | Optional |
Accuracy RSS* (at constant temp.) | ±1.0%FS | ±0.4%FS | ±0.25%FS |
Non-Linearity (BFSL) | ±0.98%FS | ±0.33%FS | ±0.20%FS |
Hysteresis | ±0.20%FS | ±0.20%FS | ±0.20%FS |
Non-Repeatability | ±0.05%FS | ±0.05%FS | ±0.05%FS |
Thermal Effects**Compensated Range °F(°C) | +40 to +150 (+5 to +65) | ||
Zero/Span Shift %FS/℉ | ±0.033 (±0.06) | ||
Maximum Line Pressure | 10 PSI | ||
Overpressure | 10 PSI in Positive or Negative Direction | ||
Warm-up Shift | ±0.1% FS Total | ||
Physical Description | |||
Case | IP65 die-cast aluminum enclosure | ||
Electrical Connection | Screw Terminal Strip Inside of Case | ||
Electrical Termination | PG-9 | ||
Zero and Span Adjustment | Accessible Inside of Case | ||
Pressure Fittings | 3/16" O.D. Barbed Brass for 1/4" Push-On Tubing (Standard) | ||
Mounting | 2 Mounting Tabs with 0.18" Holes | ||
Weight (approx.) | 348 grams | ||
Pressure Media | Typically Air or Similar Non-Conducting Gases. | ||
Environmental Data Temperature | |||
Operating* °F (°C) | 0 to +150 (-18 to +65) | ||
Storage °F (°C) | -65 to +180 (-54 to +82) | ||
Electrical Data (Current) | |||
Circuit | 2-Wire | ||
Output* | 4 to 20 mA** | ||
Bidirectional Output at Zero | 12 mA | ||
External Load | 0 to 800 Ohms | ||
Minimum loop supply voltage | (VDC) = 9 + 0.02 x (Resistance of receiver plus line) | ||
Maximum loop supply voltage | (VDC) = 30 + 0.004 x (Resistance of receiver plus line) | ||
Re-Ranging (268MR only) | 4 Position Dip Switches (located inside cas | ||
Electrical Data (Voltage) | |||
Circuit | 3-wire (Exc, Com, Sig) | ||
Output* | 0 to 5VDC/0 to 10VDC** | ||
Excitation (for 0 to 5VDC output) | 9 to 30VAC/12 to 42VDC | ||
Excitation (for 0 to 10VDC output) | 11 to 30VAC/13 to 42VDC | ||
Bidirectional Output at Zero | 2.5VDC (0 to 5VDC)/5VDC (0 to 10VDC) | ||
Output Impedance | 100Ohms | ||
SETRA壓力變送器268系列產(chǎn)品介紹
Model 268 系列微差壓傳感器由不銹鋼膜片與固定電極構(gòu)成一個(gè)可變電容，壓力變化時(shí)，電容值發(fā)生變化。Setra檢測(cè)電路將電容值的變化轉(zhuǎn)化為線性直流電信號(hào)。彈性膜片可承受 70KPa 過(guò)壓（正向 / 負(fù)向均可）而不會(huì)損壞。此傳感器 / 變送器已進(jìn)行了溫度補(bǔ)償，從而提高了溫度性能和長(zhǎng)期穩(wěn)定性。
Model 268 或 268MR 微差壓變送器可用來(lái)測(cè)量差壓或表壓 ( 靜態(tài) ), 并將信號(hào)轉(zhuǎn)換為成比例的電流信號(hào)，輸出 4-20mA 的電流信號(hào)。激勵(lì)電壓為 24VDC。Model 268(EX) 符合本質(zhì)安全要求，防爆等級(jí)為 ia ll CT4( 特選 ), 可在防爆的環(huán)境下正常工作。Model 268/268MR 最小測(cè)量范圍為 0 ～ 25Pa, 最大測(cè)量范圍為 0 ～ 25KPa, 在室溫下精度為 ±1%FS, 溫度補(bǔ)償范圍在 +5 ～ +65℃ , 通過(guò)溫度補(bǔ)償電路，使溫度影響小于 ±0.06%FS/℃。
Model 268/268MR廣泛應(yīng)用于天然氣管道監(jiān)測(cè)，電廠風(fēng)壓檢測(cè)等領(lǐng)域。
SETRA壓力變送器268系列選型
SETRA壓力變送器268系列其他常見(jiàn)型號(hào)：
SETRA 268
SETRA 268Ex
SETRA 268MR
SETRA 268C2061056
SETRA 2681-10CL-D-11-C-F1-N-E
SETRA 2681-250L-D-11-C-F1-N-E
SETRA Pressure Transmitter NEW + ORIGINAL+ ONE YEAR WARRANTY
愛(ài)澤工業(yè)成立于2010年，定位于向先進(jìn)制造工業(yè)提供高端制造技術(shù)和設(shè)備。代理經(jīng)營(yíng)世界先進(jìn)的電氣自動(dòng)化、機(jī)械與傳動(dòng)、流體控制、儀器儀表、工具等產(chǎn)品。作為電氣，液壓以及氣動(dòng)解決方案的合作伙伴，我們利用我們的全球協(xié)作團(tuán)隊(duì)，為客戶提供先進(jìn)解決方案，市場(chǎng)知識(shí)以及相關(guān)增值服務(wù)來(lái)幫助優(yōu)化客戶的工作效率，提高可靠性和安全性，致力于成為工業(yè)產(chǎn)品和解決方案的優(yōu)質(zhì)渠道。
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SETRA壓力變送器268系列2681-250L-D-11-C-F1-N-E技術(shù)參數(shù)及選型
