TRUE ECHO CR-L General Purpose Radar Liquid Level Sensor Installation Guide

CR-L General Purpose Radar Liquid Level Sensor

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Specifications

• Model: CR-L-GP-49-L1-P-E5-16-B0
• Frequency: 75-85 GHz
• Operating Voltage: 24V DC
• Communication: RS-485
• Warranty: 24 months

Product Usage Instructions

Mounting Instructions

Ensure the radar is installed perpendicular to the measured
surface. Avoid interferences within the beam angle. Install at
least 7.9″ away from side walls.

General Care

Install the radar correctly to minimize maintenance needs.
Ensure proper installation to avoid interferences and false
echoes.

Wiring Information

Refer to the pin-out tables for connecting the radar sensor. Use
the correct power supply according to the specifications.

Bluetooth App

Download and install the Bluetooth app to configure and monitor
the radar sensor remotely.

Programming Quick Start

Follow the programming guide to quickly set up the radar sensor
for your specific application.

FAQ

How can I obtain warranty service?

Contact Technical Support to receive a Return Material
Authorization (RMA) before shipping your product back.

What should I do if I encounter false echoes?

Ensure proper installation as per mounting instructions to avoid
false echoes caused by interferences.

Is it safe to operate the radar sensor in a moving

container?

No, FCC regulations prohibit operating the radar sensor while
being moved or inside a moving container.

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Thank You
Thanks for purchasing a TRUE ECHO® Radar Level Sensor from APG! We appreciate your business and your trust. Please take a moment to familiarize yourself with the product and this manual before installation. If you have any questions, don’t hesitate to call us at 888-525-7300. You can find the TRUE ECHO CR-L General Purpose Radar manual at: https://www.apgsensors.com/wp- content/uploads/2024/06/TRUE-ECHO-CR-L.pdf

TRUE ECHO® RADAR LEVEL SENSOR
General Purpose CR-L Radar Liquid Level Sensor
Installation Guide

Table of Contents
1. Description 2. How To Read Your Label 3. Warranty and Return
Information

4. General Care 5. FCC Information 6. Dimensions 7. Mounting Instructions

8. Wiring Information 9. Removal Instructions 10. Bluetooth App 11. Programming Quick
Start

1 Description
The TRUE ECHO CR-L brings the accurate level readings of radar sensors to industrial liquid measurements. It can accurately measure in many environments, including varying temperatures, steam, dust, smoke, and foam. The radar’s narrow beam can detect small targets and achieve precise positioning with high resolution. It has a maximum measuring range of 49.2 feet (15 m) and a minimum blind zone of 7.87 inches (0.2 m). All TRUE ECHO CR-L sensors can be field calibrated and programmed via the TRUE ECHO Bluetooth app.

Automation Products Group, Inc. 1025 W 1700 N Logan, UT 84321 www.apgsensors.com | phone: 888-525-7300 | email: sales@apgsensors.com Doc # 9006836 Rev B Part # 201122
6 Dimensions

2 How To Read Your Label
Each sensor comes with a label on the body with a full model number, a part number, and a serial number. The model number for the TRUE ECHO Radar Level Sensor will look something like this:
SAMPLE: CR-L-GP-49-L1-P-E5-16-B0
The model number correlates with all the configurable options and tells you exactly what you have. Compare the model number to the options on the datasheet to identify your exact configuration. You can also call us with the model, part, or the serial number and we can help you.

TRUE ECHO CR-L General Purpose Radar

3 Warranty and Return Information
This product is covered by APG’s warranty to be free from defects in material and workmanship under normal use and service of the product for 24 months. For a full explanation of our Warranty, please visit https://www.apgsensors.com/resources/warrantycertifications/warranty-returns/. Contact Technical Support to receive a Return Material Authorization (RMA) before shipping your product back.
If your radar level sensor needs to be returned for evaluation, contact us via email, phone, or on-line chat on our website. We will issue you an RMA number with instructions. You can also find the form on our website by clicking “RMA” in the web footer, or go to https://share.hsforms.com/1rPTIAWbsTMiD0XD_SkBs6g2rio0.
· Phone: 888-525-7300 · Email: sales@apgsensors.com · Online chat at www.apgsensors.com
Please have your radar part number and serial number available.

7 Mounting Instructions
· Mount your TRUE ECHO series radar so it has a clear, perpendicular path to the surface being monitored. Your sensor should be mounted away from inlets and outlets.
· The radar path should be free from obstructions and as open as possible for the 4° off axis beam pattern.
· Install the radar at least 7.9″ (20 cm) away from side walls. · Wrap PTFE tape around threads before installing the radar. Do NOT over tighten. · Do not suspend by cable.

4 General Care
Your TRUE ECHO Radar is very low maintenance and will need little care, as long as it is installed correctly. However, in general, you should:
· Avoid applications for which the sensor was not designed, such as extreme temperatures, contact with incompatible corrosive chemicals, or other damaging environments.
· Inspect the threads whenever you remove the sensor from duty or change its location.

Ensure the radar is installed perpendicular to the measured surface. Ensure there are no interferences within the beam angle, such as walls, steps, ladders, river banks, etc.

Install the radar at least 7.9″ (20 cm) away from side walls. When installing in wells or pipes, place the radar as close to the center as possible to avoid interference from side walls.

7.9″ (20cm)

5 FCC Information

FCC regulations require 75-85 GHz radars to be installed to ensure a vertically downward

orientation at fixed locations only. They must not operate while being moved or while

inside a moving container. Hand-held applications are prohibited as well as marketing to

When installing in tanks with domed lids, install off

7.9″

residential consumers.

center to avoid additional false echoes.

FCC ID: VPKAPGTRUEEC80 Contains Transmitter Module FCC ID: 2ABN2-BG22A3

8 Wiring Information

Pin Out Tables

4-20 mA

Red

VDC 24+

Blue

mA Out

Yellow

Earth Ground

Red Black Blue White Yellow

RS-485 VDC 24+ VDC Gnd RS-485 A RS-485 B Earth Ground

Power Supply Table

4-20 mA

Power Supply

16-30 VDC

4-20 mA Wires
RS-485 mA Wires RS-485 12-30 VDC

9 Removal Instructions
Removing your radar from service must be done with care.
STEP 1: Ensure power is turned off. If the radar was installed in the hazardous location, ensure that the cables will not energize while the sensor is disconnected.
STEP 2: Disconnect the radar wires. STEP 3: Remove the radar from its mount. STEP 4: Store it in a dry place, at a temperature between -40° to 158°F (-40° to 70°C).
10 Bluetooth App
Use Bluetooth to connect wirelessly to your TRUE ECHO Radar, change radar parameters, and view the echo waveform graph. STEP 1: Install the TRUE ECHO app from the app store. STEP 2: Turn on your mobile device’s Bluetooth. STEP 3: Open the TRUE ECHO app. On the Select Device screen, press
“General Purpose Radar.” STEP 4: Press the “Set up” button next to the radar’s name. STEP 5: Press “Read” to view current settings in each tab. Press “Write”
to save changes.

11 Programming Quick Start

STEP 1: Validate the Media Type is set to liquid. The CR-L General Purpose Radar is typically used for liquid level applications.
STEP 2: Choose a Vessel Type in the BASIC tab. This setting selects defaults to optimize performance.

Vessel Parameter Depth

Vessel Width

Level change rate Application

Damping time

Big

10 m

3 m

0.1 m/min Used when stable

10s

reading of a turbulent

material is a priority.

Small

1 to 10 m 1 to 3 m 1 m/min

Suitable for most

5s

working conditions.

Fast

0.5 to 10 m 0.5 to 3 m 10 m/min

Used when fast

3s

measurement is needed.

Test

0 to 15 m Unlimited Unlimited Best for in-house testing. 0s

STEP 3: Press “Write” to confirm your

choice. Press “Read” to view new settings. STEP 4: Set the Low Level, High Level, and Range settings. The

High Level 20mA

Sensor Zero Reference Point

Range Distance

Range setting should be

equal to the Low Level setting

to optimize performance.

Level

STEP 5: Press “Write” to confirm your

choice. Press “Read” to view settings.

Low Level 4mA

STEP 6: Press the ECHO tab to view

the echo waveform graph. This graph is used to determine echo strength and

view any obstacles in the radar’s path. The horizontal axis is distance from the

sensor face; the vertical axis is the echo strength in decibels (dB).

STEP 7: Close the waveform graph by pressing “Click Here To Close The Popup.”

STEP 8: In the case of obstructions, use the False Echo Begin and False Echo End settings

in the ADVANCED tab to create a false echo mask.

STEP 9: Press “Write” to confirm your choice. Press “Read” to view settings.

STEP 10: Validate the performance of the radar in the ECHO tab.

For more information about app programming, see the manual at: https://www.apgsensors.com/wp-content/uploads/2024/06/TRUE-ECHO-CR-L.pdf

References

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