SETRA压力变送器268系列技术参数
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压力变送器268系列产品介绍
Model 268 系列微差压传感器由不锈钢膜片与固定电极构成一个可变电容，压力变化时，电容值发生变化。Setra检测电路将电容值的变化转化为线性直流电信号。弹性膜片可承受 70KPa 过压（正向 / 负向均可）而不会损坏。此传感器 / 变送器已进行了温度补偿，从而提高了温度性能和长期稳定性。
Model 268 或 268MR 微差压变送器可用来测量差压或表压 ( 静态 ), 并将信号转换为成比例的电流信号，输出 4-20mA 的电流信号。激励电压为 24VDC。Model 268(EX) 符合本质安全要求，防爆等级为 ia ll CT4( 特选 ), 可在防爆的环境下正常工作。Model268/268MR 最小测量范围为 0 ～ 25Pa, 最大测量范围为 0 ～ 25KPa, 在室温下精度为 ±1%FS, 温度补偿范围在 +5 ～ +65℃ , 通过温度补偿电路，使温度影响小于 ±0.06%FS/℃。
Model 268/268MR以其性能价格比，广泛应用于天然气管道监测，电厂风压检测等领域。
SETRA压力变送器268系列选型
SETRA压力变送器268系列其他常见型号：
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
爱泽工业成立于2010年，定位于向先进制造工业提供高端制造技术和设备。代理经营世界先进的电气自动化、机械与传动、流体控制、仪器仪表、工具等产品。作为电气，液压以及气动解决方案的合作伙伴，我们利用我们的全球协作团队，为客户提供先进解决方案，市场知识以及相关增值服务来帮助优化客户的工作效率，提高可靠性和安全性，致力于成为工业产品和解决方案的优质渠道。
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SETRA压力变送器268系列2681-10CL-D-11-C-F1-N-E技术参数及选型
