Ultrasonic SL1438B is a battery powered ultrasonic flow meters and features micro-power consumption and super low start-up flow rate. The high-performance long life battery, the micro-power consumption circuits and the high-efficiency electroacoustic converter makes it possible to measure out doors where no power supply is available.
SL1438B Ultrasonic Flow Meters It is suitable for a single liquid medium, without much impurity, particles, suspended solids or air bubbles, and for full pipe f low measurement. SL1438B Ultrasonic Flowmeters can be widely used and is suitable for any acoustic conductive fluids measurement.
- Water supply
- Waste water treatment
- Industrial process water
- Cooling or heating water
- Super low start – up flow rate : 0 . 005m / s
- Micro-power design, Power consumption ﹤0. 5 mw
- Battery-powered (the battery can continuously work for 8 t o 10 years
- Data storage vi a EEPROM, can record the total i zed flow data of the previous 64 working days, previous 64 working months and the previous 5 working years; data is permanently saved after powering off .
SL1438B Ultrasonic flow meter Technical Specifications
- Accuracy : ± 1. 0% of reading (±0. 5% for option)
- Repeatability : ± 0. 3%
- Flow range : ± 0. 03 to ±23 ft / s (±0. 01 to ±7 m/ s)
- Power supply : internal battery（3. 6 v/ 19. 8 Ah ）can continuously work 8 to 10 years, or 10 ~ 36 VCD external power supply can be used to power it .
- Explosion Proof rate : Ex (ia) ⅡB T4
- Protecting rate : I P65
- Operation temperature :
- Transmitter : – 50 F~+140 F(-10 C~+60 C), humi di t y≤85%
- Transducer : – 40 F~+176 F(-40 C~+80 C)
- Display : 8 -digit LCD display for prompting and display instantaneous flow, total flow, total operation time, date etc.
- Magnetic induction key
- Storage : Data storage via EEPROM, can record the total flow data and the data can be permanently saved after powering off.
- Communication : RS-485 accumulate pulse (10～36 VDC)
- Transducer of SL1438B ultrasonic flow meters :
- The max pressure : 1.6 MPa
- Fluid temperature : 4 °C ~ 50°C
- Meter body material ：Carbon Steel
- Protection rate : IP65
- Power consumption: ＜0. 5mw
- Install the SL1438B ultrasonic flow meter on the horizontal and vertical pipes. Make sure the pipe is full of liquid.
- Before installing the SL1438B ultrasonic flow meter, clean the pipe surface.
- Straight pipe section of the same diameter D as the meter, having length of 10 D and 5 D shall be installed upstream and downstream of t he meter respectively.
- The two transducers should be mounted at the pipe’ s center line on horizontal pipes.
- Make sure that t he transducer mounting direction is parallel with the flow
InstallationUltrasonic in line Flow meter installation There are two kinds of SL1438B battery powered ultrasonic flow meter – compact type & remote type. Please refer to the corresponding dimension drawing before installing the meter and connect with the matched flanges.
- Installation dimension drawing
- Compact type installation dimension drawing
- Remote type installation dimensi on drawing