ST501 Ultrasonic Energy Meter With Clamp-on Transducer

Product Information

 

ST501 is a high-accuracy ultrasonic flow meter with clamp-on transducers measuring big pipe diameter.which is built-in RTD module. When it is equipped with PT100 temperature sensor, ST501 can be upgraded into energy meter used for measuring individual energy consumption in any  liquid heating/cooling systems. The meter is supplied complete with flowmeter and temperature sensor, making the system real-time detect the temperature of supply and return pipe.

 

The energy meter can be widely applied in various applications, like HVAC, cooling tower, data center, energy audit, and building(shipping mall, office, museum, hospital, school, subway etc.). Energy meter, also called thermal energy meter or heat meter, is used to accurately measure heat consumption in heating and cooling facilities so that the user can reach energy-saving and cost-saving.

 

Benefits

  • Measure the actual flow and total consumption of various liquids.
  • No loss of process control, optimization of assets and efficiency, no downtime or expense from calibration.
  • Adaptive signal processing algorithms optimize performance, ensuring accurate measurements even in challenging flow conditions.
  • Clear display interface and LCD display with alarm function, easy to operate and debug
  • Utilize transit-time ultrasonic technology so as to realize bi-directional flow measurement by precisely measuring the time it takes for ultrasonic signals to transmit upstream and downstream.
  • Leverage the data logging capabilities to analyze historical flow patterns to make system optimization.
  • Built-in keypad and simple menu system for fast and easy programming of pipe diameter, pipe material, liquid type, and measurement nuits.

 

 

Product Features

 

Dimension

 

 

 

 

 

 

Technical Information

 

Parameter

 

Performance Specifications

Velocity Range

0.03~±16ft/s (0.01~±5m/s)

Accuracy

±1.0% of measured value

Repeatability

0.3% of measured value

Pipe Size

1" ~ 48" (DN25 ~ DN1200)

Power Supply

24V DC

Keypad

16 (4×4) touch keys

Display 40 character, 2 line (20×2) lattice alphanumeric, back lit LCD.

Function Specifications

Output

Analog output: 4~20mA, max load 750Ω.
Pulse output: 0~9999Hz, OCT, (min. and max. frequency is adjustable)
Relay output: max 1Hz(1A@125V AC or 2A@30V DC)
Communication RS485

Liquid

water, sea water, oil, alcohol...
Pipe Material PVC, stainless steel, carbon steel, copper...

Physical Specifications

Transmitter

Aluminum alloy, IP65

Transducer

Encapsulated design, protection grade IP68
Double-shielded transducer cable
The standard/maximum length of cable: 30ft/1000ft(9m/305m)

Temperature

Transmitter: 32℉~140℉(0℃~60℃)

Transducer: 32℉~140℉(0℃~60℃) Standard

PT100 Temp. Sensor: 32℉~257℉(0℃~125℃)

Humidity

Up to 99% RH, non-condensing

 

 

 

 

 

Energy Interface

Menu84 Energy Unit Select
  • Giga Joule (GJ)
  • Kilocalorie (Kc)
  • KWh
  • BTU
Menu86 Specific Heat Select
  • GB
  • Fix Specific Heat
Menu85 Temperature Select
  • From T1, T2
  • From AI3, AI4
Menu87 Energy Totler ON/OFF
  • ON
  • OFF
Menu89 Temperature Diff
Menu8. Heat Meter Is On
  • Outlet
  • Inlet
Menu88 Energy Multiplier
  • x0.0001 (E-4)
  • x0.001 (E-3)
  • x0.01 (E-2)
  • x0.1 (E-1)
  • x1 (E0)
  • x10 (E1)
  • X100 (E2)
  • x1,000 (E3)
  • x10,000 (E4)
  • x100,000 (E5)
  • x1,000,000 (E6)

 

 

 

Wiring

 

 

 

 

Installation

 

V Method

The "V" method is considered as the standard method. It usually gives more accurate reading and is used on pipe diameters ranging from 25mm to 400mm(1'' ~ 16'') approximately. Also, it's convenient to use, but still requires proper installation of the transducer, contact on the pipe at the pipe's centerline and equal spacing on either side of the centerline.

 

 

 

Z Method

The signal transmitted in a "Z" method installation has less attenuation than a signal transmitter with the "V" method. This is because the "Z" method utilizes a directly transmitted(rather than reflected) signal which transverses the liquid only once. The "Z" method is able to measure on pipe diameters ranging from 100mm to 3000mm(4”~120”).

 

 

 

 

N Method

With the "N" method, the sound waves transverse the fluid twice and bounce three times off the pipe walls. It's suitable for small pipe diameter measurement. The measurement accuracy can be improved by extending the transit distance with the "N" method(uncommonly used).

 

 

 

 

W Method

As with the "N", the measurement accuracy can also be improved by extending the transit distance with the "W" method. The sound wave transverse the fluid four times and bounces four times off the pipe walls. It's suitable for very small pipe(diameter is less than 50mm/2'').

 

 

 

 

Package & Accessory

 

 

 

 

Order Information

 

ST501

Code

Specification

 

 

 

 

 

 

 

 

 

 

F

Ultrasonic Flow Meter

E

Ultrasonic BTU/Energy Meter(Optional)

 

 

 

 

 

 

 

 

Code

Transducer
CT038 Clamp-on transducer:
32℉~140℉ (0℃~60℃) (Standard)
IT212 Insertion transducer:
-40℉~176℉ (-40℃~80℃) (Optional)

 

 

 

 

 

Code

Cable Length

L

Standard cable length: 33ft(10m)

L+

On request other lengths

 

 

Code

Temperature Sensor

PT100

Temperature: 32℉~257℉ (0℃~125℃)

 

ST501

E

CT038

L

Complete ordering information

 

 

Application Industry

 

 

 

Pharmaceutical

 

  • Water for injection measurement
  • Measurement of sterile fluids
  • Clean room applications

Building Services

  • Installation on hot water lines
  • Energy flow measurement
  • Installation on chilled water systems

Water and Wastewater

  • Replacement of ultrasonic flow meters
  • Drinking water and effluent measurements
  • Pump testing

Marine and Shipbuilding

  • Measurement of engine cooling lines
  • Monitoring of sea water inlets
  • Heavy fuel oil measurements

General Industry

  • Automated process control
  • Large scale metering projects
  • Measurement of steam condensate

 

Velocity Range: 0.03~±16ft/s (0.01~±5m/s)
Accuracy: ±1.0%
Pipe Size: 1'' ~ 48'' (DN25 ~ DN1200)
Liquid: water, sea water, diesel oil, alcohol...
Pipe Material: PVC, stainless steel, carbon steel, copper...
Output: 4-20mA, RS485, OCT Pulse, Relay...
Transmitter: IP65
Transducer: IP68