NUFLO传感器9A
Replacement Kits
Each replacement kit contains a rotor, two vane assemblies, two
retainer rings, and a calibration tag. All components are calibrated
as a set and should be installed as a set. Components should not be
installed individually.
Table 3—Replacement Kits
Meter Kit Size (in.) Standard Grade Part No. Industrial Grade Part No.
3/8 9A 9A
1/2 9A 9A
3/4 9A 9A
7/8 9A 9A
1 9A 9A
1-1/2 9A 9A
2 9A 9A
3 9A 9A
4 9A 9A
6 9A 9A
8 9A 9ACompliances
• CSA Certified for Hazardous Areas, Class I, Div. 1, Groups A, B,
C, D
• Meters with maximum working pressures below 7500 psi are compliant
with ANSI 12.27. Single Seal.
• Certified by Cameron in compliance with pre-qualified materials
of NACE MR0175/ISO 15156. This certification does not imply or
warrant the application of the product in compliance with NACE
MR0175/ISO 15156 service conditions in which the customer/user
installs the product
涡轮流量计
一、涡轮流量计原理
当被测流体流过传感器时,在流体作用下,叶轮受力旋转,其转速与管道平均流速成正比,叶轮的转动周期地改变磁电转换器的磁阻值。检测线圈中的磁通随之发生周期性变化,产生周期性的感应电势,即电脉冲信号,经放大器放大后,送至显示仪表显示。
涡轮流量计特点
.高精确度,一般可达±1%R、±0.5%R,高精度型可达±0.2%R;
.重复性好,短期重复性可达0.05%~0.2%,正是由于具有良好的重复性,如经常校准或在线校准可得到极高的精确度,在贸易结算中是优先选用的流量计;
.输出脉冲频率信号,适于总量计量及与计算机连接,无零点漂移,抗干扰能力强;
.可获得很高的频率信号(3~4kHz),信号分辨力强;
.范围度宽,中大口径可达1:20,小口径为1:10;
.结构紧凑轻巧,安装维护方便,流通能力大;
.适用高压测量,仪表表体上不必开孔,易制成高压型仪表;
.专用型传感器类型多,可根据用户特殊需要设计为各类专用型传感器,例如低温型、双向型、井下型、混砂专用型等;
.可制成插入型,适用于大口径测量,压力损失小,价格低,可不断流取出,安装维护方便。