Controllers & Temperature Controllers

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LU-50 Flow Totalizer

The LU-50 flow totalizer is suitable for measuring the flow of various liquids, gases and steam. It performs compensation calculations based on measured pressure and offers multiple input modes.

  • CategoryControllers & Temperature Controllers
  • Model-
  • Views6059 views
  • Updated2011-11-25
Selection customization and technical solution support available. After-sales Service 0086-400-8875-999, Pre-sales Hotline 0086-0592-5711111

I. Overview

The LU-50 flow totalizer is suitable for flow measurement of various liquids, gases and steam, and can perform compensation calculation based on the measured pressure. It offers multiple input modes and can be connected to frequency pulse sensors such as vortex flowmeters, or to other flow transmitters with 0-10 mA or 4-20 mA output.
The LU-50 flow totalizer adopts a table-lookup compensation method, enabling high-accuracy compensation calculation for superheated steam and saturated steam. It provides multiple display modes and can display cumulative flow, instantaneous flow, pressure, temperature, frequency, density and time, with the display refresh cycle freely settable. According to different input frequencies, the LU-50 flow totalizer can set ten different flow coefficients and automatically correct the flow coefficient by interpolation algorithm. The LU-50 flow totalizer adopts WATCHDOG circuit, software trap, redundancy, digital filtering and other technologies, giving the whole instrument strong anti-interference capability.

Main Technical Specifications
Basic error: ±(0.2%F.S±1) digits Flow signal: Pulse greater than 2V, 0-6.5KHz frequency
Pressure signal: 0-10mA, 4-20mA current Temperature signal: Pt100 RTD
Over-range: Sb Sampling period: 0.8 s
Output signal: Transmitter output current 0-10mA or 4-20mA Data protection: Data retained for ten years after power failure
Alarm output: AC220V/3A Communication interface: RS232 RS485
Display: Dual 4-digit LED display, automatic decimal point shift Applications: Temperature, pressure, level, etc.
Output power supply: DC12V/50mA,DC24V/50mA Power consumption: 4W
III. Dimensions and panel cutout (W×H×D) Unit: mm
Type A: 96×96×105  Cutout: 92×92    Type B: 48×96×105  Cutout: 45×92
Type C: 96×48×105  Cutout: 92×45    Type D: 160×80×105  Cutout: 152×76
Type E: 80×160×105  Cutout: 76×152  Type F: 72×72×105  Cutout: 68×68

LU-50 Flow Totalizer User Manual

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