Modular Ultrasonic Flow Meter | RWTT Modular

Modular Ultrasonic Flow Meter | RWTT Modular

Modular Ultrasonic Flow Meter  – Overview

The Modular Ultrasonic Flow Meter is compact and economical. It works using the transmit-time working theory. One ultrasonic sensor sends an ultra-sound wave and another sensor receives this wave. The transmit time from send to receive has a direct relationship with the flow speed. The converter then calculates the flow speed based on the transmit time.  Can be installed onto an instrument box easily via DIN rail. It has no pressure loss and measurement is not affected by temperature or pressure changes. Accuracy can reach ±1%. It has an LCD display and communicates via 4-20mA, pulse or RS485 outputs. It also has reliable empty full tube detection technology. Excellent low flow rate measurement performance. Turndown ratio 100:1.

Modular Ultrasonic Flow Meter  – Features

  • Accuracy: ±1% of reading at rates >0.2 mps
  • Repeatability: 0.2%
  • Principle: Transmit time
  • Velocity: ±32m/s
  • Pipe Size: DN15mm-DN6000mm

Description

Modular Ultrasonic Flow Meter | RWTT Modular

Table 1: Wall Mount Type Ultrasonic Flow Meter Technology Parameter

Items Specifications
Accuracy ±1% of reading at rates >0.2 mps
Repeatability 0.002
Principle Transmit time
Velocity ±32m/s
Pipe Size DN15mm-DN6000mm
Display LCD with backlight, display accumulated flow/heat, instantaneous flow/heat, velocity, time etc.
Signal Output 1-way 4-20mA output
1-way OCT pulse output
1-way relay output
Signal Input 3-way 4-20mA input achieve to heat measurement by connecting PT100 platinum resistor
Other Functions
Automatically record the positive,negative, net totalizer flow rate and heat. Automatically record the time of power-on/off and flow rate of the last 30 times. Replenish by hand or read the data through Modbus communication protocol.
Pipe Material Carbon Steel, stainless steel, cast iron, cement pipe, copper, PVC, aluminium, FRP etc. Liner is allowed
Straight Pipe Section Upstram: 10D; Downsteam:5D; From the pump:30D (D means outer diameter)
Liquid Types
Water, seawater, industrial sewage, acid & alkali liquid, alcohol, beer, all kinds of oils which can transmit ultrasonic single uniform liquid
Liquid Temperature Standard: -30℃ ~ 90℃ ,High-temperature:-30℃ ~ 160℃
Liquid Turbidity Less than 10000ppm, with a little bubble
Flow Direction Bi-directional measuring, net flow/heat measuring
Environment Temperature Main Unit: -30℃ ~ 80℃
Transducer: -30℃ ~ 160℃, Temperature transducer: select on enquiry
Environment Humidity Main Unit: 85% RH
Transducer: standard is IP65, IP68(optional)
Cable
Twisted Pair Line, standard length of 5m, can be extended to 500m (not recommended); Contact the manufacturer for longer cable requirement. RS-485 interface, transmission distance up to 1000m
Power Supply DC24V
Power Consumption Less than 1.5W
Communication MODBUS RTU RS485

Table 2: Wall Mount Type Ultrasonic Flow Meter Transducer Selection

Type Specification Measuring range
Temperature range
Clamp on type
Small-size DN15mm~DN100mm -30℃~90℃
Middle- size DN50mm~DN700mm -30℃~90℃
Large -size DN300mm~DN6000mm -30℃~90℃
High temperature
clamp on type
Small-size DN15mm~DN100mm -30℃~160℃
Middle- size DN50mm~DN700mm -30℃~160℃
Large -size DN300mm~DN6000mm -30℃~160℃
Insert type
standard length
type
Wall thickness
≤20mm
DN50mm~DN6000mm -30℃~160℃
Extra-length
type
Wall thickness
≤70mm
DN50mm~DN6000mm -30℃~160℃
Parallel type
used for narrow
installation
space
DN80mm~DN6000mm -30℃~160℃
Inline type
π type inline DN15mm~DN32mm -30℃~160℃
Flange type DN40mm~DN1000mm -30℃~160℃

Table 3: Wall Mount Type Ultrasonic Flow Meter Temperature Sensor Model

PT100 Accuracy Cut Off Water Measuring Range Temperature
Clamp-on ± 1% No DN50mm~DN6000mm -40℃~160℃
Insertion Sensor ± 1% Yes DN50mm~DN6000mm -40℃~160℃
Insertion-type installation with pressure ± 1% No DN50mm~DN6000mm -40℃~160℃
Insertion type for small pipe diameter ± 1% Yes DN15mm~DN50mm -40℃~160℃

Modular Ultrasonic Flow Meter | RWTT Modular

Brand

Royce Water Systems

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