655A差压变送器适用于高静态/低DP的应用场合，特别适用于*终用户和OEM，要求在3”w - c范围内具有极高的超压和0.25%的精度和稳定性。

每一个655A系列采用先进的制造技术，以确保HI和LO端口之间的对称性。对称，加上自动焊接程序，使这些差压变送器在高高架管线压力下具有优异的性能和可靠性。每个单元包括一个6点的NIST校准证书，证明该单元的高水平的性能。655A系列变送器压力端口全部由316不锈钢焊接而成，采用无o形环设计，非常适用于高循环应用、毛细管填充系统或需要保证无泄漏系统的应用场合。

Service:Compatible gasses or liquids.

Wetted Materials:316L SST.

Accuracy:±0.25% BFSL, RSS (combined effect of non-linearity, hysteresis, and repeatability).

Stability:≤ ±0.25% FSO/yr.

Temperature Limits:-20 to 200°F (-29 to 93°C).

Compensated Temperature Limits:0 to 170°F (-17.8 to 76.7°C).

Pressure Limits:1000 psi (68.95 bar) continuous; 3000 psi (206.8 bar) burst.

Thermal Effects:≤ ±1.5% F.S. over comp. temperature range.

Power Requirements:8 to 38 VDC.

Output Signal:4 to 20 mA.

Static Pressure Effects:On Zero: ≤ ±0.25% FSO per 1000 psi; On Span: ≤ ±0.5% of reading per 1000 psi.

Loop Resistance:1500 Ω.

Electrical Connections:Cable exit with 24" cable; optional 6-pin connector.

Process Connections:1/4" NPT female.

Enclosure Rating:Designed to meet NEMA 4X (IP66).

Mounting Orientation:Mount in vertical position: zero shifts up to 1" ±H2O depending on orientation.

Response Time:< 10 ms.

Weight:18 oz (510 g).

Agency Approval:CE.