KEYENCE FR Series Radar Type Level Sensor Instruction Manual

KEYENCE FR Series Radar Type Level Sensor

Specifications

• Model: FR Series
• Type: Radar Type Level Sensor
• Range: Short-range
• Display: Built-in display (FR-S01)
• Power Supply: Stabilized DC power supply with an isolating transformer

Safety Precautions:

• General precautions: Be aware of the symbols indicating hazardous situations and follow the instructions accordingly.
• Precautions on media: Clean the bottom of the main unit if conductive components adhere to avoid exceeding measured values.
• Precautions on handling: Avoid high electric or magnetic fields during installation to prevent malfunction.
• Precautions on installation: Consider noise immunity during installation and use a stabilized DC power supply with an isolating transformer.
• Precautions on Regulations and Standards: Ensure compliance with CE, UKCA marking, CSA certificate, CEC, NEC, and radio communication regulations.

Product Functionality
The FR Series Radar Type Level Sensor is designed for short-range applications and comes with a built-in display for easy monitoring of levels. It provides accurate level measurements and is suitable for various industrial applications.

How to Use:

1. Ensure the power supply is connected as per specifications.
2. Install the sensor in the desired location, considering noise immunity factors.
3. Refer to the User’s Manual for detailed instructions on setting up and calibrating the sensor.
4. Monitor the display for real-time level readings and make adjustments as necessary.

Frequently Asked Questions (FAQ):

Q: Where can I find the User’s Manual for the FR Series?
A: The User’s Manual can be downloaded from the KEYENCE website at http://www.keyence.com or obtained through a local KEYENCE representative.

Instruction Manual

Details about the FR Series functions and how to use the unit can be found in the “FR Series User’s Manual.” A copy of the “FR Series User’s Manual” can be downloaded off of the KEYENCE website. Alternatively, contact a local KEYENCE representative. KEYENCE website: http://www.keyence.com

Read this manual before using the product in order to achieve maximum performance. Keep this manual in a safe place after reading it so that it can be used at any time.

Symbols

The following symbols alert you to important messages. Be sure to read these messages carefully.

Important Indicates cautions and limitations that must be followed during operation.

Point
Indicates additional information on proper operation.

Reference
Indicates tips for better understanding or useful information.

Safety Precautions

General Precautions

 DANGER|

• Do not use this product for the purpose of protecting a human body or a part of a human body.•
• product is not intended for use as an explosion-proof product. Do not use this product in a hazardous location and/or potentially explosive atmosphere.
• Do not use this product in an application that may cause death, serious injury, or serious property damage due to a failure with this product occurring, such as in nuclear power plants; on aircraft, trains, ships, or vehicles; used within medical equipment, playground equipment, roller coasters, and other rides.

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  WARNING|

• Do not use the FR-SH01(C) for applications such as beverages, food, and
• medical services. Also, if using the FR-LP(H)20(L) for applications such as beverages, food, and medical services, be sure to use a ferrule mounting bracket (OP-88888).
• If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.
• You must perform a sufficient risk assessment for the machine where this product is to be installed prior to installing this product. Provide appropriate protective fail-safe measures on the machine independent from this product in case a failure with this product should occur.

  CAUTION|

• Before starting operation and during operation, verify the functions and  performance of the product.
• In case any failure occurs with the product, take sufficient safety measures to prevent further damage.

NOTICE|

• If the product is used in combination with other equipment, the functions and performance may not meet expectations depending on the operating condition, environment, and other conditions. Consider these points before using this product.

• If this product is used for an acid or alkaline medium, or for an application within sanitary environments and electroplating, check the resistance of the sensor materials to the target medium or application beforehand.

• Precautions on media

NOTICE
Measured values may exceed the upper limit if conductive components in the target medium adhere to the bottom of the main unit. In this case, clean the bottom of the main unit to remove the adhered substances.

Precautions on handling

CAUTION

• When detecting a high-temperature liquid, the temperatures of the metal components of the sensor will also rise, which may cause burns. Do not touch these metal components during operation.
• Do not touch the threads of the main unit because it is sharp.

Precautions on installation

CAUTION|

• Do not install the sensor in the following locations, as this may result in an accident:
• A location where the main unit is subject to vibrations or impact greater than its environmental resistance
• A location whose ambient temperature does not fall within the ambient operating temperature range
• A location where the humidity surrounding the main unit exceeds 85%RH(no condensation)
• A location subject to sudden changes in temperature
• A location with any volatile combustibles, solvents, or corrosive gases
• A location with a strong magnetic or electric field

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NOTICE

• During installation, take the following into account to improve the noise immunity. Otherwise, a malfunction may occur.

• Do not use a power cable whose length exceeds 30 m (20 m if using IOLink).
  Mount the sensor as far away as possible from any power lines.

• Mount the sensor as far away as possible from any equipment generating a high electric or magnetic field (such as solenoids and choppers).

• Wire input/output signal lines separately from power and high-tension lines.

Power supply

• Noise superimposed on the power supply may result in malfunction. Be sure to use a stabilized DC power supply with an isolating transformer.
• When using a commercially available switching regulator, be sure to ground the frame ground terminal.
• Failing to abide by the recommended installation conditions in this manual may lead to unstable detection.

Precautions on Regulations and Standards

CE and UKCA marking

Keyence Corporation has confirmed that this product complies with the essential requirements of the applicable EU Directive(s) and UK regulations, based on the following specifications. Be sure to consider the following specifications when using this product in the Member States of European Union and in the United Kingdom.

RE Directive (CE) and Radio Equipment Regulations (UKCA)

• Operating frequency: 58 to 63 GHz
• Maximum radio output:
• FR-S(H)01(C): -12.81 dBm (0.05 mW)
• FR-LM(H)20/LP(H)20/LS20: -5.89 dBm (0.26 mW)
• FR-LM(H)20L/LP(H)20L/LS20L: -17.36 dBm (0.02 mW)
• Remarks: These specifications do not give any guarantee that the end product with this product incorporated complies with the essential requirements of RE Directive and Radio Equipment Regulations. The manufacturer of the end product is solely responsible for the compliance of the end-product itself according to RE Directive and Radio Equipment Regulations.

CSA certificate

This product complies with the following CSA and UL standards and has been certificated by CSA.

• Applicable standard CAN/CSA C22.2 No.61010-1 UL61010-1
• Be sure to consider the following specifications when using this product as a product certified by CSA.
• Overvoltage category I
• Pollution degree 3 (FR-S(H)01(C)/SA1/SA2/SA1C/SA0/LS20(L))
• Pollution degree 4 (FR-LM(H)20(L)/LP(H)20(L))
• Use this product at an altitude of 5000 m or less.
• Use a CSA/UL certified power supply that provides Class 2 output as defined in the

CEC (Canadian Electrical Code) and NEC (National Electrical Code).

Precautions on radio communication

• The FR Series uses the 60 GHz band.

• Radio frequency interference slowing or even preventing measurement may occur if this product is used in the vicinity of equipment that uses the same frequency band such as wireless LAN equipment, microwaves, factory-use heaters, and high-frequency
  medical equipment.

• KEYENCE declares that the FR-S(H)01(C)/LS20(L)/LM(H)20(L)/LP(H)20(L) complies with Radio Equipment Directive 2014/53/EU.

• The entirety of this declaration of conformity with this EU directive is available at the following Internet address. [www.keyence.com/cedoc]

Precautions on radio communication (FR-S(H)01(C)/LS20L/ LM(H)20L/LP(H)20L)

complies part 15 of the FCC Rules.

Operation is subject to the two conditions:

1. may not cause harmful interference, and
2. this device must accept any interference received, including interference that may operation.

• FCC CAUTION Changes or modifications not expressly approved the responsible for compliance could void the user’s authority to operate the equipment.
  Note: equipment has been tested and found to with the limits for a Class A operated in a commercial environment.

• installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.

• Operation of this equipment in a residential area is likely to cause harmfull interference in which case the user will be required to correct the interference at his own expense.. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment and meets the FCC radio frequency (RF) Exposure Guidelines. This equipment should be installed and operated keeping the radiator at least 20cm or more away from person’s body.

• This device contains licence-exempt transmitters)/receivers) that comply with Imperation, Sciene and eConomic eve Conditi Canada s licence-exempt RS5(s).

1. This device may not cause interference.
2. This device must accept any interference, including interference that may cause undesired operation of the device.

• This equipment complies with ISED radiation exposure limits set forth for an uncontrolled environment and meets RSS-102 of the ISED radio frequency (RF) Exposure rules.
• This equipment should be installed and operated keeping the radiator at least 20cm or more away from person’s body.

Packaged Items

• Main unit
• Instruction Manual

System Configuration Example and Name of Each Component

• Short-range type with built-in display

*1 Lights in red, yellow, or green depending on the “Indicator pattern” setting.

Product Overview

The FR Series allows you to specify the following values.

1. The distance from the reference surface of the sensor to the bottom of the tank (0%)
2. The distance from the reference surface of the sensor to the top surface of the tank (100%)

With these values specified, the sensor displays the level of the liquid/powder from the bottom of the tank.

Installation and Mounting

Mounting the sensor
Mounting on the flange nozzle

1. Fit a gasket (included with the flange mounting bracket)1 on the flange mounting bracket, and then mount the sensor on the flange mounting bracket.
   Recommended tightening torque: 30 N·m

2. Insert a flange gasket1 between the flange mounting bracket and the flange nozzle, and then use bolts and nuts to secure the parts.
   Recommended tightening torque: 30 N·m
   Insert a flange gasket1 between the flange mounting bracket and the flange nozzle, and then use bolts and nuts to secure the parts.

3. A gasket is not required if an airtight seal is not required.

Mounting directly on a top panel (mounting with a nut).

1. Drill a hole with a diameter of 27 mm in the top panel.
2. Fit a gasket1 on the threads of the sensor, and then insert the threads in the hole in the top panel.
3.  Attach a nut from the bottom of the top panel.
   Recommended tightening torque: 30 N·m
   1 A gasket is not required if an airtight seal is not required.

Mounting directly on a top panel (using a general mounting bracket, not a nut)

1. Insert the threads of the sensor into a general mounting bracket.
2. Drill a hole with a diameter of 40 mm in the top panel, and then use screws to secure the general mounting bracket on this panel.

Mounting directly on a top panel (screwing in the device)

1. Drill a G3/4 screw hole in the top panel.
2. Fit a gasket1 on the threads of the sensor, and then insert this mounting screw in the hole in the top panel.

Mounting on an inner wall

1.  Mount a side mounting bracket on a wall with M6 screws.
2. Insert the sensor into the bracket, and then attach a nut from the bottom of the bracket.
   Recommended tightening torque: 30 N·m

Clamping to the tank wall

1. Attach the clamp of the mounting bracket to the tank wall, and then turn the screw to tighten the clamp.
2.  Insert the sensor into the clamp mounting bracket, and then attach a nut from the bottom of the bracket.
3. Loosen the socket head cap screw (width between two surfaces: mm) on the adjuster to rotate the bracket. Tighten this screw again after adjusting the bracket to the desired angle.
   Recommended tightening torque: 3.5 N·m

Offset mounting

1. Drill a hole with a diameter of 50 mm and four M6 screw holes in the top panel.
2.  Mount an offset mounting bracket to the top panel of the tank with M6 screws.
3. Mount the sensor on the offset mounting bracket.
   Recommended tightening torque: 30 N·m

NOTICE
If the liquid surface or bubbles reach the undetectable area, you can stabilize detection by mounting the offset mounting bracket at further distance from the liquid surface or bubbles.

Adjustable mounting

1. Mount the threaded bolt of an adjustable mounting bracket on the inner wall of a tank or similar object.
   (Recommended tightening torque: 24.5 N·m)

2. Insert the sensor into the hole of the adjustable mounting bracket, and then attach a nut from the bottom of the bracket.
   Recommended tightening torque: 30 N·m

3. Loosen the socket head cap screw (width between two surfaces: 4 mm) on the adjuster to rotate the bracket. Tighten this screw again after adjusting the bracket to the desired angle.
   Recommended tightening torque: 3.5 N·m
   

Mounting on a ferrule

1. Mount a gasket on the ferrule mounting bracket, and then mount this bracket on the sensor.
2. Mount the ferrule gasket on the ferrule.
3. Use a clamp to mount the sensor on the ferrule.

Recommended installation conditions

The FR Series beam widens as follows.
Ensure there are no metal obstacles in the following range.

Detection may be unstable at close distances.
It is recommended to install the sensor so that its reference surface is, at a minimum, at the following distances from the highest expected liquid level.

Adjusting the orientation of an installed sensor

The case can be rotated up to approximately 330°. After securing the sensor to a mounting bracket or something similar, rotate the case while holding the hexagon part in place with a wrench to orient the display as desired.

Wiring

• Pin layout

Power cable connector pin layout

IO-Link-compatible wire when connecting an IO-Link device
Independently insulate any unused input/output wires.

1. Control output wiring

   • NPN
   • PNP
     

2.  External input wiring

   • NPN
   • PNP

Analog output wiring

• It is possible to switch between 4-20 mA and 0- 20 mA using settings.

Connecting the Power Cable

1. Plug the power cable into the power cable connector.

NOTICE
When connecting the connector, plug it in straight and fix it firmly.
If the tightening is not sufficient, the connector may loosen, which may lead to contact failures.

Initial Setting at First Startup

When the sensor is turned on for the first time, configure the following initial settings.

• Select parameters with the keys and use the MODE key to confirm entries.
• After you confirm all the parameters on one screen, you will move to the next one.
• To return to the previous screen, hold down the MODE key and press the  key.

Underlined items are initial values

• Language ENGLISH, 日本語, 中文, DEUTSCH
• PNP/NPN PNP, NPN
• Control outputs 0, 1, 2, 3, 4, 5
• External input OFF, ON
• Detection target Water-soluble liquid, Oily Liquid, Powder
• Distance unit mm, m
• Bottom distance 0 to 2000mm*1
• Top Distance 0 to 2000mm*1
• Set value 1*2 0 to 99999
• Ouput 1 logic*2 N.O., N.C.
• Indicator order*3 Order 1, Order 2, Order 3, Only green, Always Off

1. The unit and decimal point position vary depending on the “Distance unit” setting. *
2. Numbers 1 to 5 are displayed depending on the value selected with “Number of control outputs.” Nothing is displayed if [0] is selected with “Number of control outputs.
3. The selectable number of patterns varies depending on the “Number of control outputs” setting.

Number of control outputs

• At most, there are five outputs, one external input, and one analog output.

• Set the number of control outputs to use.
  The set number of control outputs are assigned in order from OUT1.
  You can only use up to four control outputs when you select [ON] for “External input.”

• Other functions can be assigned to outputs to which control outputs are not assigned.
  For details on these functions, see the user’s manual.

• Each control output can also be changed to area mode.
  For details on area mode, see the user’s manual.

* During IO-Link communication, this cannot be used as output, but the OUT2 function
can be used.

• Detection target

Select [Water-soluble liquid] if the specific conductive capacity of the measurement target is 10 or higher, [Oil-based liquid] if the specific conductive capacity of the target is less than 10, and [Powder] if the target is a powder.
If you select [Oil-based liquid], the area from the base to 10% of the height of the tank on the side far from the sensor is masked.
For details, see the user’s manual.

Point
Selecting an incorrect detection target may prevent accurate detection of the liquid surface.

• Distance to bottom
  Enter the distance from the reference surface of the sensor to the bottom of the tank. For the position of the reference surface of the sensor when using a mounting bracket, see the dimensions provided in, for example, the catalog.
  See the dimensions for the position of the reference surface of the sensor when using a mounting bracket. The position indicated as the tank bottom is 0% in the % display.

Distance to top surface
Enter the distance from the reference surface of the sensor to the top surface of the tank. This position is 100% in the % display.

• Output logic 1
  N. O.: Control output turns on when the current value exceeds one of the set values.
  N.C.: Control output turns on when the current value drops below one of the set values.

• Indicator pattern
  You can select the lighting order of the ring indicator according to the liquid surface position.
  The indicator color is also linked to the color bar on the current value screen.

Basic Operation

Current value screen

• Changing set values
  Hold down the MODE key on the current value display to enter the menu, and then select Change set value.
  Use the keys to change the set value, and then confirm the change with the MODE key.

• Key lock

  • This function prevents operation mistakes by locking/disabling key operations to prevent the settings from being easily changed.
  • To require a password when canceling the key lock, set “Key lock method” to “With password.”

Enabling/disabling the key lock:

• Hold down the MODE key and the  key for 3 seconds or more.
• When “Key lock method” is set to “With password,” the password is required when unlocking the keys.

Reference
If the password entered is incorrect, an error will occur, and the normal screen will appear with the key lock still enabled.

Initializing settings
On the current value screen, hold down the MODE key and press the key five times to initialize all settings.

Maintenance

• Clean deposits and foreign substances on the mounting bracket and the bottom of the sensor as necessary.

Specifications

SUS304
Case| PPS   PBT  PAR
Connection port| G3/4 (20A)

Output

| Number of control outputs| Max. 5

Control output/alarm output

| NPN/PNP open collector (switchable), 30 VDC max., 50 mA max. for each output, residual voltage: 1.4 V max. (50 mA max.),

N.O./N.C. switchable,  IO2 also used for IO-Link,

IO5 also used for external input

Analog output

| 0 to 20 mA/4 to 20 mA, maximum load resistance: 260 Ω (Response time: 0.2 s after comparator output determined [90% response])
External input| Short circuit current: max. 1.5 mA, input time: min. 500 ms
Network compatibility| IO-Link v1.1/COM2
Analog output accuracy| Resolution| 1 mm
Zero accuracy| ±0.1 mA (zero = 4 mA)
F.S. accuracy| ±0.2 mA (F.S. = 20 mA)

Environmental resistance

| Ambient temperature| -20 to +55°C (no freezing) 4, 5
Ambient humidity| Up to 85%RH (no condensation)
Operating coupling temperature| -20 to +85°C (no freezing) 4, 5
Vibration resistance| 10 to 500 Hz;

Power spectral density: 0.816 G2/Hz; X, Y and Z directions

Shock resistance| 100 m/s2 (approx. 10 G), 16 ms pulses, 1000 times each for X, Y and Z axes
Enclosure rating| IP67
Protection circuit| Protection against reverse power connection, output overcurrent, output surge, and reverse output connection
Power voltage| 24 VDC+25%/-20%

including ripple, Class 2/LPS

Current consumption| 50 mA max. (at 20 V)/

40 mA max. (at 30 V) (excluding load)

Corresponding cable/connector| 8-pin M12 connector
UI| Display| LCD, ring indicator
Key switches| 3 (up, down, and MODE)

1.  Value guaranteed with water and the recommended mounting method. With water and the recommended mounting method, measurement is possible right up to the lens surface. An undetectable area on the near side occurs due to the relationship between the environment and the measurement medium. Additionally, the maximum measuring distance decreases.
2.  The target shape or the environment may make measurement impossible.
3. This value is guaranteed by KEYENCE inspection facilities. Errors may occur due to your environment.
4. The operating temperature range for each model is as follows.

On the FR-S01, selecting [Turns off when no op.] for “Screen brightness” can alleviate the ambient temperature regulation by 10°C.
*5 When performing SIP, turn the power supply off, and then perform this operation for 1 hour or less with an ambient temperature of 40°C or less and an internal system temperature of 130°C. Also, be sure to attach a ferrule mounting bracket and an internal gasket, which are optional KEYENCE products.

WARRANTIES AND DISCLAIMERS

1. KEYENCE warrants the Products to be free of defects in materials and workmanship for a period of one (1) year from the date of shipment. If any models or samples were shown to Buyer, such models or samples were used merely to illustrate the general
   type and quality of the Products and not to represent that the Products would necessarily conform to said models or samples. Any Products found to be defective must be shipped to KEYENCE with all shipping costs paid by Buyer or offered to KEYENCE for inspection and examination. Upon examination by KEYENCE, KEYENCE, at its sole option, will refund the purchase price of, or repair or replace at no charge any Products found to be defective. This warranty does not apply to any defects resulting from any action of Buyer, including but not limited to improper installation, improper interfacing, improper repair, unauthorized modification, misapplication and mishandling, such as exposure to excessive current, heat, coldness, moisture, vibration or outdoors air. Components which wear are not warranted.

2.  KEYENCE is pleased to offer suggestions on the use of its various Products. They are only suggestions, and it is Buyer’s responsibility to ascertain the fitness of the Products for Buyer’s intended use. KEYENCE will not be responsible for any damages that may result from the use of the Products.

3.  The Products and any samples (“Products/Samples”) supplied to Buyer are not to be used internally in humans, for human transportation, as safety devices or fail-safe systems, unless their written specifications state otherwise. Should any Products/ Samples be used in such a manner or misused in any way, KEYENCE assumes no responsibility, and additionally Buyer will indemnify KEYENCE and hold KEYENCE harmless from any liability or damage whatsoever arising out of any misuse of the Products/Samples.

4.  OTHER THAN AS STATED HEREIN, THE PRODUCTS/SAMPLES ARE PROVIDED WITH NO OTHER WARRANTIES WHATSOEVER. ALL EXPRESS,
   IMPLIED, AND STATUTORY WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON- INFRINGEMENT OF PROPRIETARY RIGHTS, ARE EXPRESSLY DISCLAIMED.

IN NO EVENT SHALL KEYENCE AND ITS AFFILIATED ENTITIES BE LIABLE TO ANY PERSON OR ENTITY FOR ANY DIRECT, INDIRECT, INCIDENTAL, PUNITIVE, SPECIAL OR CONSEQUENTIAL DAMAGES (INCLUDING, WITHOUT
LIMITATION, ANY DAMAGES RESULTING FROM LOSS OF USE, BUSINESS INTERRUPTION, LOSS OF INFORMATION, LOSS OR INACCURACY OF DATA, LOSS OF PROFITS, LOSS OF SAVINGS, THE COST OF PROCUREMENT OF SUBSTITUTED GOODS, SERVICES OR TECHNOLOGIES, OR FOR ANY MATTER ARISING OUT OF OR IN CONNECTION WITH THE USE OR INABILITY TO USE THE PRODUCTS, EVEN IF KEYENCE OR ONE OF ITS AFFILIATED ENTITIES WAS ADVISED OF A POSSIBLE THIRD PARTY’S CLAIM FOR DAMAGES OR ANY OTHER CLAIM AGAINST BUYER. In some jurisdictions, some of the foregoing warranty disclaimers or damage limitations may not apply. BUYER’S TRANSFER OBLIGATIONS:

If the Products/Samples purchased by Buyer are to be resold or delivered to a third party, Buyer must provide such third party with a copy of this document, all specifications, manuals, catalogs, leaflets and written information provided to Buyer pertaining to the Products/Samples.

KEYENCE CORPORATION 1-3-14, Higashi-Nakajima, Higashi-Yodogawa-ku, Osaka, 533-8555, Japan PHONE: +81-6-6379-2211 www.keyence.com/glb

References

• KEYENCE CORPORATION OF AMERICA
• Declaration of Conformity for RE Directive | KEYENCE America

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