ST502 Ultrasonic Energy Meter
Clamp-on type ultrasonic energy meters for flow and heat
consumption measurement.
Introduction
ST502 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, ST502
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
- Measures the actual flow and total energy 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
bidirectional flow measurement by precisely measuring the time it
takes for ultrasonic signals to travel 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 units.
ST502 is a brand-new high-end product that is made of aluminum
alloy material and realizes CNC processing method. It adopts the
industry-leading full-sealed iron-absorbing side-opening technology
without any screw locking, and the tedious steps of screwing are
reduced. Such a convenient design truly realizes "one-second
opening".
Principle
TVT(Transit-Time Vortex) technology represents a cutting-edge
approach to ultrasonic flow measurement, combining the principles
of transit-time ultrasonics with the capability to harness the
vortex shedding phenomenon, delivering unparalleled accuracy and
versatility in ultrasonic flow meters. This innovative integration
technology enhances the accuracy, versatility, and performance of
ultrasonic flow meters, making them well-suited for a wide range of
applications across various industries and is a valuable solution
for industries requiring precise flow measurements in varying flow
conditions.
- Enhanced Accuracy in Turbulent Flows:
TVT technology excels in applications where fluid flow conditions
vary between laminar and turbulent. The incorporation of vortex
shedding data enhances accuracy in challenging flow environments.
- Versatility in Fluid Types:
TVT technology is versatile and suitable for a wide range of fluid
types, including liquids with varying viscosities and densities.
Flo-Instruments ST502 ultrasonic flowmeter offers high-accurate and
repeatable flow measurement for liquids at an economical price. It
is made of strong metal case. Combined the outstanding performance
transducer with high industrial grade material, it's ideal for
pipes size from 1''(25mm) up to 200''(5000mm) in diameter. IP68
sensors that are easy to install requires this pipe not to be cut,
thus reducing installation and labor costs. Simple interface makes
it very convenient to operate.
ST502-PT100 ultrasonic energy meter, which is used for measuring
individual energy consumption in any liquid heating/cooling
systems. The meter is supplied complete with flowmeter and
temperature sensor, which can makes the system real-time detect the
temperature of supply and return pipe.
The temperature sensor is to use conversion element characteristics
of electromagnetic parameters change with temperature, the
temperature and temperature related parameters for testing
device.The resistancechange of the temperature change can be
converted to known as thermal resistance sensors.
ST502-PT100 Meter provides highly accurate thermal energy
measurement in chilled water, hot water and condenser water systems
based on
signal inputs from two temperature sensors and ultrasonic flow
meters.
Specifications
| Performance specifications |
| Velocity range | ±0.1 ~ ±40ft/s (±0.03 ~ ±12m/s) |
| Accuracy | ±0.5% of measured value (for ±1.5ft/s~±40ft/s) |
| Pipe size | 1’’ to 200’’ (25mm to 5000mm) |
| Fluid | Water, Sea Water, Diesel Oil, Kerosene, Gasoline , Fuel Oil,
Gasoline, Propane (-45℃), Alcohol, Butane (0℃), Water (125℃), Other |
| Pipe material | Carbon Steel, PVC, Stainless Steel, Asbestos, Cast Iron, Aluminum,
Ductile Iron, Fiber Glass-Epoxy, Copper, Other |
| Function specifications |
| Optional Outputs | Analog output: 4~20mA, max load 750Ω.
Pulse output: 0~9999Hz, OCT, (min. and max. frequency is
adjustable) Relay output: SPST, max 1Hz (1A@125VAC or 2A@30VDC) |
| Communication interface | RS485 |
| SD Card | Standard SD card Max record: 512days Record time interval,Max
record: 2GB |
| Power supply | 24V DC |
| Keypad | 16 light tactile keys |
| Display | 40 character, 2 line (20X2) lattice alphanumeric, back lit LCD. |
| Temperature | Transmitter: -40℉~140℉ (-40℃~60℃)
Transducer: -40℉~248℉ (-40℃~120℃) |
| Humidity | Up to 99% RH, non-condensing |
| Physical specifications |
| Transmitter | NEMA 4X (IP65), Die-cast aluminum |
| Transducer | Encapsulated design
double-shielded transducer cable
Material: Aluminium alloy+PEI |
| Transducer cable | Standard cable length: 33ft (10m). |
| Weight | Transmitter: approximately 2.15kg;
Transducer: approximately 0.9kg. |
| Type of Temperature sensor |
| PT100 | PT100 Temperature sensor |
