# Product Appearance, Specifications, and Model

## **Exterior**

<figure><img src="/files/Y76EwtOWmDgeFHVU0QPH" alt=""><figcaption></figcaption></figure>

## **Exploded views**

<figure><img src="/files/ma7LEUmMMWLzpQn8xfrf" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/RbFelekmQ3VyTOIBEO7S" alt=""><figcaption></figcaption></figure>

## **Models & Dimensions** <a href="#models-and-dimensions" id="models-and-dimensions"></a>

<figure><img src="/files/ai5foJbKD7Yj3b2zvufr" alt=""><figcaption></figcaption></figure>

<table><thead><tr><th width="86.623046875">Spec</th><th width="82.90234375">A</th><th width="69.1767578125">B</th><th width="70.6123046875">C</th><th width="73.6640625">D</th><th width="68.48828125">E</th><th width="71.681640625">F</th><th width="108.15625">G</th><th>H</th></tr></thead><tbody><tr><td>FU-ES015</td><td>169.85</td><td>115</td><td>64</td><td>79</td><td>3</td><td>2.5</td><td>120.53</td><td>54</td></tr><tr><td>FU-ES020</td><td>169.85</td><td>115</td><td>64</td><td>79</td><td>3</td><td>2.5</td><td>124.02</td><td>54</td></tr><tr><td>FU-ES025</td><td>169.85</td><td>115</td><td>64</td><td>79</td><td>3</td><td>2.5</td><td>133.52</td><td>54</td></tr><tr><td>FU-ES032</td><td>169.85</td><td>115</td><td>64</td><td>79</td><td>3</td><td>2.5</td><td>143.02</td><td>54</td></tr></tbody></table>

<figure><img src="/files/GP0axux16iyIOcX4W9r4" alt=""><figcaption></figcaption></figure>

<table><thead><tr><th width="96.173828125">Spec</th><th width="90.1044921875">A</th><th width="65.6171875">B</th><th width="87.326171875">C</th><th width="59.279296875">D</th><th width="74.3232421875">E</th><th width="91.9794921875">F</th><th width="75.978515625">G</th><th>H</th></tr></thead><tbody><tr><td>FU-ES040</td><td>184.90</td><td>64</td><td>125.22</td><td>4</td><td>2.5</td><td>164.12</td><td>53.50</td><td>69.50</td></tr><tr><td>FU-ES050</td><td>184.90</td><td>64</td><td>125.30</td><td>4</td><td>2.5</td><td>178.12</td><td>53.50</td><td>69.50</td></tr><tr><td>FU-ES065</td><td>184.90</td><td>64</td><td>126.87</td><td>4</td><td>2.5</td><td>193.12</td><td>53.50</td><td>69.50</td></tr><tr><td>FU-ES075</td><td>184.90</td><td>64</td><td>128.55</td><td>4</td><td>2.5</td><td>207.12</td><td>53.50</td><td>69.50</td></tr></tbody></table>

<p align="center"><img src="/files/WTJyDuWsvYmcNJ8uSQZx" alt=""><br></p>

## **Product Specifications**

### **1. Mechanical Specifications**

| Installation method                      | Clamp-On                                                                                                                           |
| ---------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------- |
| Maximum working temperature of pipe wall | 100°C (non-UL)                                                                                                                     |
| Device working environment temperature   | -10\~60°C (14\~140°F) (The higher the temperature of the fluid in the pipe, the lower the upper limit of the ambient temperature.) |
| Applicable pipe size                     | DN15-75 (1/2" to 3")                                                                                                               |
| Power supply                             | DC 12V to 36V 200mA                                                                                                                |
| Response time                            | ≤0.5 to 1 s                                                                                                                        |

### **2. Measurement Specifications**

<table data-header-hidden><thead><tr><th width="217.81640625">量測相關規格</th><th></th></tr></thead><tbody><tr><td>Applicable fluid</td><td>Clear, oil or chemicals with less impurities (&#x3C;1%)</td></tr><tr><td>Linearity</td><td>± 0.5 % FS (>0.3m/s)</td></tr><tr><td>Reproducibility</td><td>± 0.4 %</td></tr><tr><td>OR tolerance</td><td><p>±3.0% RD (10%-100% F.S.)</p><p>±0.3% F.S. (0%-10% F.S.)<mark style="color:red;">*</mark></p></td></tr><tr><td>Measuring principle</td><td>Time of Flight, ToF</td></tr><tr><td>Transient data</td><td>Instantaneous flow volume and flow velocity</td></tr><tr><td>Transient data</td><td>Cumulative flow (optional positive, negative or net flow)</td></tr><tr><td>Water proof</td><td>IP66 <mark style="color:red;">**</mark>  (non-UL)</td></tr></tbody></table>

<mark style="color:red;">\*</mark>Measurement accuracy is calibrated under controlled laboratory conditions using clean water at room temperature with CNS UPVC piping. Actual results may vary depending on fluid properties, piping conditions, installation, and environmental factors.

<mark style="color:red;">\*\*</mark> IP66 Ingress Protection Rating indicates protection against dust and water. The first digit **6** means complete dust protection, and the second digit **6** means protection against powerful water jets.

### **3. Electrical Specifications**

* #### **Power supply**

  | **Whole device power supply** |                                                              |
  | ----------------------------- | ------------------------------------------------------------ |
  | Working specification         | 12V \~ 36V 90mA (4-20mA and RS485 current are not included.) |
  | Reverse voltage protection    | **Yes**                                                      |

  <br>
* #### **OCT output**

  | Power supply spec          | 5V\~30V 200mA |
  | -------------------------- | ------------- |
  | Reverse voltage protection | Yes           |
  | NPN connection             | Yes           |
  | PNP connection             | Yes           |
  | Maximum output frequency   | 700Hz         |
  | Overcurrent protection     | 200mA         |

  <br>
* #### Analog output (4-20mA, 0-20mA)

  <table data-header-hidden><thead><tr><th width="287.984375">Analog output (4-20mA, 0-20mA)</th><th></th></tr></thead><tbody><tr><td>Wiring</td><td>3 wiring</td></tr><tr><td>Power supply</td><td>Device shares power with the main unit, no external power supply required.</td></tr><tr><td>Output range</td><td>0–20 mA or 4–20 mA (selectable)</td></tr><tr><td>Maximum output range<br>(incl. error signal)</td><td>0~21.6 mA (0–20 mA mode) / <br>2.4~21.6 mA (4–20 mA mode)</td></tr><tr><td>Resolution</td><td>16-bit (0–24 mA physical range)</td></tr><tr><td>Response time</td><td>≤0.5 to 1s (matches display update rate)</td></tr><tr><td>Loop Resistance</td><td><p>1100 ohm @ 36V</p><p>600 ohm @ 24V</p><p>250 ohm @ 12V</p></td></tr></tbody></table>

  <br>
* #### Digital communication Modbus RTU RS485

  | Baud             | 9600, 19200, 38400, 57600 |
  | ---------------- | ------------------------- |
  | Wiring           | 2 wiring                  |
  | Nodes on the bus | 256                       |

### **4. User Interface**

<table data-header-hidden><thead><tr><th width="189.7734375">User Interface</th><th></th></tr></thead><tbody><tr><td>Language</td><td>English, Traditional Chinese, Simplified Chinese (Others customizable)</td></tr><tr><td>Unit</td><td>Metric: Liter, cubic meters, meters Imperial: foot, Cubic foot, Uk gallon, US gallon Time: second, minute, hour, day</td></tr><tr><td>Display</td><td><p>Double screen display : </p><p>Large 5-Digit LED, 16x3 3-Color Backlight LCD display</p></td></tr><tr><td>Display digits</td><td><p>LED 5 Digits (4 digits when negative value) </p><p>LCD 10 Digits (Not including sign and decimal point)</p></td></tr><tr><td>Operation buttons</td><td>4 Key touch buttons</td></tr><tr><td>Wired communication</td><td>Self-powered Analog output 4-20mA (Device after HW1.3) Modbus RTU RS485 Two-line OCT switch signal (ship with 2 meter cable)</td></tr></tbody></table>

## **Shipping Contents**

Besides other agreed contents, our standard package contains:

* FU-ES Device \* 1
* 2m 8 pin cable \* 1
* Quick starting manual \* 1

<figure><img src="/files/P0DuWY19q6qdDqLo0QLB" alt=""><figcaption></figcaption></figure>

## **Size, material, model**

<table data-header-hidden><thead><tr><th width="355.53515625">Parts</th><th>Material</th></tr></thead><tbody><tr><td>Screws for top side housing</td><td>Stainless steel 304</td></tr><tr><td>Screen cover</td><td>PMMA</td></tr><tr><td>Whole housing without screen cover</td><td>PC+GF</td></tr><tr><td>Buttons</td><td>PET</td></tr><tr><td>2 meters long 8 pin cable with insulation cover</td><td>Nylon</td></tr><tr><td>Middle lid</td><td>PPS+GF</td></tr><tr><td>Lower lid</td><td>PPS+GF, Silicon</td></tr><tr><td>Buckle</td><td>PPS+GF, PA66+GF, Silicon, Stainless steel 304</td></tr></tbody></table>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.lorric.com/qr/fu-es-echosense-instruction-manual/dimensions-specifications-and-model-numbers.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.