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超声波流量计|南京仪器仪表

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超音波式
性能Performance
流体Fluid 相当于超纯水/纯水Ultrapure water/Pure water requivalent
测定流量范围Measuring flow ranges 0~300mL/min,5~300mL/min
测量流体精度Meaduring flow accuracy FS±1%(纯水瞬间流量)FS±1%(at instanteneious flowrate of pure water)
zui高工作压力Max operating pressure 0.4MPa(G) (耐压0.5MPa(G))
流体工作温度Operating fluid temperature zui高50℃Max
工作环境温度
Ambient operating temperature
0~50℃ (应不结露) 0~50℃(No dewing)
电装部分
Electrical Part
检测方式Input signals 传播时差方式 Propagation time difference method
输入信号Input Signals 累计值复位输入、0点复位输入(采用跳线管脚到及RS-485复位)
Integrating value reaetting input and reset input at zero point
(Reset by jumper pin and RS-485)

输出信号Output signals

测量输出
·DC4~20mA输出
瞬间流量 分辨率约1/3000
累计流量至上限设定(20mA)5000ml可任意设定
(zui大载荷阻抗800Ω)
·频率/累计脉冲输出(开路集电极输出)…从频率/累计脉冲出选择
频率…可在FS流量时的FS频率设定(可设定100~300Hz)
累计脉冲…可设定每1脉冲的设定流量(1~200mL)
·异常输出(开路集电极输出)…在不可测量时输出
*开路集电极额定输出:同步电流zui大100A、外加电压zui大+35V
(vol=1.3V)
Measuring output:4-20mADC
Instantaneous flowrate:Limit of resolution:Approx 1/3000
Integrating flowrate:Possible arbitraily to set up to 500mL/min in upper
limit setting (Max load resistance:800)
Pulse output(Open collector)...Selectable from frequency/integrating pulse
Flowrate setting at FS...Settable arbitrarily up to 300mL/min at
frequency of FS
Integrating pulse...Setting flowrate per one pulse settable(1-200mL)
Abnormal output(Open collector output)...Output at time when disenabling
to measure
*Open collector output rating:Sink current;
Max 100A impressed voltage:Max +35V(vol=1.3V)
通信功能
Communicating function
RS-485
电源电压Power source voltage DC 24V
消耗电流Power consumption 100mA
检测部
Detecting
Part
质Material of wetted part PFA
电缆长度Cable length 2m(同轴电缆、聚四氟乙烯包覆) 2m(coaxial cable shielded with Teflon)
配管口径Pipe size TV1/4,TV3/8

Connecting terminals
1
2
DC电源(+) Power source at DC(+)
DC电源(-) Power source at DC(-)
3
4
4-20mA电流输出(+) Current output at 4-20mA(+)
4-20mA电流输出(-) Current output at 4-20mA(-)
5
6
7
脉冲输出(开路集电极输出) Pulsr output(Open collecot output)
错误输出(开路集电极输出) Erroneous output(Open collector)
COM开路集电极输出 COM to open collector output
8
9
RS-485输出(+) RS-485 output(+)
RS-485输出(-) RS-485 output(-)

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