Flo-Instruments Co., Ltd
| Packaging Details | Conventional Packaging |
| Optional Outputs | OCT Pulse output: 0~5000Hz. Analog output: 4~20mA, max load 750Ω. |
| Temperature range | Transmitter: -40℉~140℉ (-40℃~60℃); Transducer: 32℉~140℉ (0℃~60℃) |
| Power supply | 24V DC/1A@max |
| Delivery Time | 3-5 working days |
| Payment Terms | T/T |
| Pipe size | 1”~48”(25mm~1200mm) |
| Velocity range | 0 ~ ±16ft/s (0 ~ ±5m/s) |
| Keypad | 16(4×4) key with tactile action |
| Model Number | ST505 |
| Certification | CE; ISO9001 |
| Place of Origin | ShenZhen |
| Brand Name | Flo-Instru |
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Product Specification
| Packaging Details | Conventional Packaging | Optional Outputs | OCT Pulse output: 0~5000Hz. Analog output: 4~20mA, max load 750Ω. |
| Temperature range | Transmitter: -40℉~140℉ (-40℃~60℃); Transducer: 32℉~140℉ (0℃~60℃) | Power supply | 24V DC/1A@max |
| Delivery Time | 3-5 working days | Payment Terms | T/T |
| Pipe size | 1”~48”(25mm~1200mm) | Velocity range | 0 ~ ±16ft/s (0 ~ ±5m/s) |
| Keypad | 16(4×4) key with tactile action | Model Number | ST505 |
| Certification | CE; ISO9001 | Place of Origin | ShenZhen |
| Brand Name | Flo-Instru | ||
| High Light | ST505 ultrasonic energy meter with RTD module ，ultrasonic energy meter with PT100 sensor ，energy consumption monitoring meter with temperature sensor | ||
Integrate into your management system to provide remote measurement services for precise energy consumption monitoring.
ST505 is a high-accuracy ultrasonic energy meter with clamp-on transducers for measuring large pipe diameters, featuring a built-in RTD module. When equipped with a PT100 temperature sensor, the ST505 becomes a complete energy meter for measuring individual energy consumption in liquid heating/cooling systems. The system includes flowmeter and temperature sensors for real-time detection of supply and return pipe temperatures.
This energy meter is widely applicable in HVAC, cooling towers, data centers, energy audits, and various buildings including shopping malls, offices, museums, hospitals, schools, and subways. Also known as a thermal energy meter or heat meter, it accurately measures heat consumption in heating and cooling facilities to achieve energy and cost savings.
The ST505 features a premium aluminum alloy construction with CNC processing, utilizing industry-leading full-sealed iron-absorbing side-opening technology without screw locking, enabling convenient "one-second opening" operation.
Transmitter
Transducer
| Specification | Value |
|---|---|
| Velocity Range | 0.03~±16ft/s (0.01~±5m/s) |
| Accuracy | ±1% of measured value |
| Repeatability | 0.3% of measured value |
| Pipe Size | 1" ~ 48" (25mm ~ 1200mm) |
| Power Supply | 24V DC |
| Keypad | 16 touch buttons |
| Display | (20×2) alphanumeric, backlit LCD |
| Output Type | Specifications |
|---|---|
| Analog Output | 4~20mA, max load 750Ω |
| Pulse Output | 0~9999Hz, OCT (min. and max. frequency adjustable) |
| Relay Output | max 1Hz (1A@125V AC or 2A@30V DC) |
| Communication | RS485 |
| Liquid Compatibility | water, sea water, oil, alcohol... |
| Pipe Material Compatibility | PVC, stainless steel, carbon steel, copper... |
| Component | Specifications |
|---|---|
| Transmitter | Die-cast aluminum, IP65, CNC machined |
| Transducer | Encapsulated design, IP68 protection, double-shielded cable |
| Cable Length | Standard: 30ft (9m), Maximum: 1000ft (305m) |
| Temperature Range (Transmitter) | -40℉~140℉ (-40℃~60℃) |
| Temperature Range (Transducer) | 32℉~140℉ (0℃~60℃) Standard |
| Temperature Range (PT100 Sensor) | 32℉~257℉ (0℃~125℃) |
| Humidity | Up to 99% RH, non-condensing |
The "V" method is considered the standard installation method, providing more accurate readings for pipe diameters ranging from 25mm to 400mm (1" ~ 16"). This convenient method requires proper transducer installation at the pipe's centerline with equal spacing on either side.
The "Z" method utilizes directly transmitted signals with less attenuation than the "V" method, suitable for pipe diameters from 100mm to 3000mm (4"~120").
With the "N" method, sound waves transverse the fluid twice and bounce three times off pipe walls, extending transit distance for improved accuracy in small pipe diameter measurements.
The "W" method further extends transit distance with sound waves transverse the fluid four times, suitable for very small pipes (diameter less than 50mm/2").
| Product | Code | Specification |
|---|---|---|
| ST505 | F | Ultrasonic Flow Meter (Optional) |
| E | Ultrasonic BTU/Energy Meter (Standard) | |
| Transducer | CT039 | Clamp-on transducer: 32℉~140℉ (0℃~60℃) (Standard) |
| IT215 | Insertion transducer: -40F~176F (-40℃~80℃) (Optional) | |
| Cable Length | L | Standard cable length: 33ft (10m) |
| L+ | Other lengths available on request | |
| Temperature Sensor | PT100 | Temperature range: 32℉~257℉ (0℃~125℃) |
| Complete Ordering Example: ST505 | E | CT039 | L | ||
Company Details
Business Type:
Manufacturer
Ecer Certification：
Verified Supplier
Flo-Instruments has been specialized in the field of ultrasonic flow meters, and has over 20 years of relevant engineering and installation experience, covering clamp-on and insertion, wall-mounted and portable. We are keeping focusing on the development of industrial, commercial, and civilian ... Flo-Instruments has been specialized in the field of ultrasonic flow meters, and has over 20 years of relevant engineering and installation experience, covering clamp-on and insertion, wall-mounted and portable. We are keeping focusing on the development of industrial, commercial, and civilian ...
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