# MWR-50 TA

# Product Information

# General Information

WARNING

Risk of Property Damage or Severe Injury

Ensure that you read, understand and follow all instructions before operating the tool. Failure to follow all the instructions may result in electric shock, fire, property damage and/or severe bodily injury.

- Read all Safety Information delivered together with the different parts of the system.

- Read all Product Instructions for installation, operation and maintenance of the different parts of the system.

- Read all locally legislated safety regulations regarding the system and parts thereof.

- Save all Safety Information and instructions for future reference.

In this Section

- Safety Signal Words
- Warranty
- ServAid
- Country of Origin
- Dimensional Drawings

# Safety Signal Words

The safety signal words Danger, Warning, Caution, and Notice have the following meanings:

DANGER | DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING | WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION | CAUTION, used with the safety alert symbol, indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE | NOTICE is used to address practices not related to personal injury.

# Warranty

- Product warranty will expire 12 months after the product is first taken into use, but will in any case expire at the latest 13 months after delivery.

- Normal wear and tear on parts is not included within the warranty.

  - Normal wear and tear is that which requires a part change or other adjustment/overhaul during standard tools maintenance typical for that period (expressed in time, operation hours or otherwise).

- The product warranty relies on the correct use, maintenance, and repair of the tool and its component parts.

- Damage to parts that occurs as a result of inadequate maintenance or performed by parties other than Atlas Copco or their Certified Service Partners during the warranty period is not covered by the warranty.

- To avoid damage or destruction of tool parts, service the tool according to the recommended maintenance schedules and follow the correct instructions.

- Warranty repairs are only performed in Atlas Copco workshops or by Certified Service Partners.

Atlas Copco offers extended warranty and state of the art preventive maintenance through its ToolCover contracts. For further information contact your local Service representative.

For electrical motors:

- Warranty will only apply when the electric motor has not been opened.

# ServAid

ServAid is a portal that is continuously updated and contains Technical Information, such as:

- Regulatory and Safety Information

- Technical Data

- Installation, Operation and Service Instructions

- Spare Parts Lists

- Accessories

- Dimensional Drawings

Please visit: https://servaid.atlascopco.com.

For further Technical Information, please contact your local Atlas Copco representative.

# Country of Origin

For the Country of Origin, please refer to the information on the product label.

# Dimensional Drawings

Dimensional Drawings can be found either in the Dimensional Drawings Archive, or on ServAid.

Please visit: http://webbox.atlascopco.com/webbox/dimdrw or https://servaid.atlascopco.com.

# Overview

# Applications

The MWR-50 TA is a mechanical click-wrench combined with an electronic torque transducer.

The MWR-50 TA are equipped with the ISM band radio interface (characterized by a frequency equal to 868 MHz / 915 MHz) for wireless connection with Focus 61.

The MWR-50 TA works with Focus 61, which defines the tightening programs for the MWR-50 TA.

A | Focus 61 | B | Station 1
C | Station 2 | D | MWR-50 TA

For more information about the configuration and the use of the MWR-50 TA, refer to the Focus 61 User Guide.

# LEDs

The MWR-50 TA has three sets of LEDs and each set consists of red, green, yellow and blue LEDs.

A | LED | B | Right view
C | Left view | D | Top view

In the following, a description of the LEDs behavior.

If the MWR-50 TA is out from the MWR Charging cradle, the battery is charged and at least a job is available on the MWR-50 TA:

- Yellow LED blinks every 3 s and blue LED blinks every 1 s: the MWR-50 TA is ready to use and any force is applied.

- Green LED on for 3 s and blue LED blinks every 1 s: the last tightening is OK and any force is applied on the MWR-50 TA after click.

- Red LED on for 3 s and blue LED blinks every 1 s: the last tightening is NOK and any force is applied on the MWR-50 TA after click.

- Yellow LED blinks with an interval less than 1 s: the MWR-50 TA is measuring.

- Green LED on for 3 s, yellow LED on during deadtime and blue LED on after deadtime: the last tightening is OK (TOK) and any force is applied on MWR-50 TA after click.

- Red LED on for 3 s, yellow LED on during deadtime and blue LED on after deadtime: the last tightening is NOK (TNOK) and any force is applied on MWR-50 TA after click.

- Red LED on for 3 s, yellow LED on during deadtime and blue LED bliks every 1 s: the last tightening is rehit or NOK and any force is applied on MWR-50 TA after click.

If the MWR-50 TA is out from the MWR Charging cradle, the battery is out of power and at least, a job is available on the MWR-50 TA:

- Red LED blinks every 3 s and blue LED blinks every 1 s: the MWR-50 TA is ready to use.

- Green LED on for 3 s and blue LED blinks every 1 s: the last tightening is OK and any force is applied on the MWR-50 TA after click.

- Red LED on for 3 s and blue LED blinks every 1 s: the last tightening is NOK and any force is applied on the MWR-50 TA after click.

- Red LED blinks every 1 s: the MWR-50 TA is measuring.

- Green LED on for 3 s, yellow LED on during deadtime and blue LED on after deadtime: the last tightening is OK (TOK) and any force is applied on MWR-50 TA after click.

- Red LED on for 3 s, yellow LED on during deadtime and blue LED on after deadtime: the last tightening is NOK (TNOK) and any force is applied on MWR after click.

- Red LED on for 3 s, yellow LED on during deadtime and blue LED bliks every 1 s: the last tightening is rehit or NOK and any force is applied on MWR-50 TA after click.

If the MWR-50 TA is out from the Charging cradle, the battery is charged and no jobs are available on the MWR-50 TA:

- Yellow LED blinks every 3 s: theMWR-50 TA is ready to use and any force is applied.

- Red LED on for 3 s: the last tightening is OK and any force is applied on the MWR-50 TA after click.

- Red LED on for 3 s and blue LED blinks every 1 s: the last tightening is NOK and any force is applied on the MWR-50 TA after click.

- Yellow LED blinks with an interval less than 1 s: the MWR-50 TA is measuring.

If the MWR-50 TA is out from the MWR Charging cradle, the battery is out of power and no jobs are available on the MWR-50 TA:

- Red LED blinks every 3 s: the MWR-50 TA is ready to use and any force is applied.

- Red LED on for 3 s: the last tightening is OK and any force is applied on the MWR-50 TA after click.

- Red LED on for 3 s and blue LED blinks every 1 s: the last tightening is NOK and any force is applied on the MWR-50 TA after click.

- Red LED blinks every 1 s: the MWR-50 TA is measuring.

If the MWR-50 TA is in the MWR Charging cradle, the battery is charged and the MWR-50 TA is ready to use:

- Yellow LED on permanently and the blue LED blinks every 1 s: active job available on the MWR-50 TA.

- Yellow LED on permanently: no active job available on the MWR-50 TA.

If the MWR-50 TA is in the MWR Charging cradle, the battery is out of power and the MWR-50 TA is ready to use:

- Yellow LED on permanently and the blue LED blinks every 1 s: active job available on the MWR-50 TA.

- Yellow LED on permanently: no active job available on the MWR-50 TA.

If the MWR-50 TA is out the MWR Charging cradle and an error occurred: Red LED blinks every 300 ms

If the MWR-50 TA is in the MWR Charging cradle and an error occurred: Red LED blinks every 300 ms and yellow LED on permanently.

If the MWR-50 TA is out the MWR Charging cradle and it is out the radio range: Red LED, the green LED and the yellow LED blink every 3 s.

If the MWR-50 TA is in the Charging cradle and out of the radio range: Yellow LED blinks on permanently.

# Radio module frequencies

Refer to the local Regulatory Domain for frequency selection.

Europe

Number | Channel | Frequency [MHz] | Data rate [bit/s]
1 | 51 | 868.034 | 38400
2 | 56 | 868.297 | 38400
3 | 60 | 868.502 | 38400
4 | 64 | 868.706 | 38400
5 | 69 | 868.006 | 38400
7 | 82 | 869.573 | 38400
8 | 84 | 869.840 | 38400
9 | 51 | 868.034 | 19200
10 | 56 | 868.297 | 19200
11 | 60 | 868.502 | 19200
12 | 64 | 868.706 | 19200
13 | 69 | 869.006 | 19200
15 | 82 | 869.573 | 19200
16 | 84 | 869.840 | 19200

USA

Number | Channel | Frequency [MHz] | Data rate [bit/s]
1 | 2 | 902.791 | 38400
2 | 9 | 906.478 | 38400
3 | 10 | 907.004 | 38400
4 | 17 | 910.691 | 38400
5 | 20 | 912.271 | 38400
6 | 31 | 918.064 | 38400
7 | 32 | 918.590 | 38400
8 | 46 | 925.963 | 38400
9 | 2 | 902.791 | 19200
10 | 9 | 906.478 | 19200
11 | 10 | 907.004 | 19200
12 | 17 | 910.691 | 19200
13 | 20 | 912.271 | 19200
14 | 31 | 918.064 | 19200
15 | 32 | 918.590 | 19200
16 | 46 | 925.963 | 19200

Korea

Number | Channel | Frequency [MHz] | Data rate [bit/s]
1 | 85 | 917.300 | 38400
3 | 91 | 918.900 | 38400
4 | 94 | 919.900 | 38400
5 | 97 | 920.500 | 38400
6 | 100 | 921.100 | 38400
7 | 103 | 922.500 | 38400
8 | 106 | 923.100 | 38400
9 | 85 | 917.300 | 19200
11 | 91 | 918.900 | 19200
12 | 94 | 919.900 | 19200
13 | 97 | 920.500 | 19200
14 | 100 | 921.100 | 19200
15 | 103 | 922.500 | 19200
16 | 106 | 923.100 | 19200

Japan

Number | Channel | Frequency [MHz] | Data rate [bit/s]
1 | 108 | 922.800 | 38400
2 | 109 | 923.400 | 38400
3 | 110 | 923.600 | 38400
4 | 111 | 924.200 | 38400
5 | 112 | 924.600 | 38400
6 | 113 | 924.800 | 38400
7 | 114 | 926.000 | 38400
8 | 115 | 926.200 | 38400
9 | 116 | 926.600 | 38400
10 | 117 | 926.800 | 38400
11 | 118 | 927.600 | 38400
12 | 108 | 922.800 | 19200
13 | 109 | 923.400 | 19200
14 | 110 | 923.600 | 19200
15 | 111 | 924.200 | 19200
16 | 112 | 924.600 | 19200
17 | 113 | 924.800 | 19200
18 | 114 | 926.000 | 19200
19 | 115 | 926.200 | 19200
20 | 116 | 926.600 | 19200
21 | 117 | 926.800 | 19200
22 | 118 | 927.600 | 19200

This device may not accept interference in the band 520 MHz - 720 MHz, including interference that may cause undesired operation.

# ISM band radio interface

- Frequency bands: 868 MHz / 915 MHz

- RF output power: 3 mW

- Receive input level (max): -112 dBm

# Product data

- Operating torque measuring range: 10 [N·m] - 50 [N·m] / 7.4 [lb·ft] - 36.9 [lb·ft]

- Drive: 9x12 mm.

- Overall length: 234 mm.

- Operating torque range: from 20% to 100% of the capacity

- Torque measurement accuracy (within the operating torque range): 2%

- Mechanical repeatability click: ± 4%

- Overload capacity: 120 % of nominal capacity

- Maximum angular speed: 250 °/s

- Angle measurement accuracy: ± 3.6 ° / 360 ° (at 6 ° per second)

- Temperature stability of torque measurement: +10 °C to +40 °C (10 °F to 104 °F)

- Tightening results memory capacity: 8100 Data sets (maximum)

- MWR-50 TA Reference Firmware version: 3.0.0

- Power supply: 1.2 V rechargeable battery

# Environmental conditions

Comply with the following environmental conditions during the operation:

- Indoor Use ONLY

- Room temperature: 5 °C to 40 °C (41 °F to 104 °F)

- Maximum relative humidity 80% for temperature up to 31 °C (88 °F) decreasing linearly to 50% relative humidity at 40 °C (104 °F)

# Accessories

# MWR Charging cradle

To recharge the battery of the MWR-50 TA with the MWR Charging Cradle:

1. Connect the MWR Charging Cradle to the AC power.

2. Insert the MWR-50 TA into the MWR Charging Cradle:

   When the wrench is placed into the MWR Charging Cradle, the red, yellow and green LEDs (placed on three sides of the MWR-50 TA) flash alternately. This indicates that the wrench sets the internal offset (zero point) for the torque transducer and runs a quick self-test.

   When the MWR-50 TA is in charging mode and the internal offset has been performed, the yellow LED of the MWR-50 TA is on and the Status LED of the MWR Charging Cradle is flashing (green colored).

   When the charging process of the MWR-50 TA is complete, the Status LED of the MWR Charging Cradle is constantly on (green colored).

For more information on the MWR Charging Cradle functioning, refer to the MWR Charging Cradle Product Instructions.

# Battery

A rechargeable NiMH AAA battery 1.2 V 1000 mAh provides power to the MWR-50 TA.

Use only rechargeable batteries. Do not use other battery types.

A | Front cap | B | + (positive pole)

To power on the MWR-50 TA:

1. Remove the front cap of the MWR-50 TA by using a flat screwdriver.

2. Insert the battery (with the correct polarity) into the dedicated case.

3. Screw the front cap of the MWR-50 TA by using a flat screwdriver.

To power off the MWR-50 TA:

1. Remove the front cap of the MWR-50 TA by using a flat screwdriver.

2. Remove the battery from the case.

3. Screw the front cap of the MWR-50 TA by using a flat screwdriver.

# End Fittings

At the front part, the wrench has a standard drive (9x12 mm) which allows to attach different types of end fittings.

For information on the compensations, please refer to the Focus 61 User guide.

# Protection cover

The protection cover protects the MWR-50 TA electronic housing from accidental light impacts in production.

Insert the ring of the protection cover on the handle of the MWR-50 TA and slide it to the electronic housing.

# Operation

# Ergonomic Guidelines

Consider your workstation as you read through this list of general ergonomic guidelines to identify areas for improvement in posture, component placement, or work environment.

- Take frequent breaks and change work positions frequently.

- Adapt the workstation area to your needs and the work task.

  - Adjust for a convenient reach range by determining where parts and tools need to be located to avoid static load.

  - Use workstation equipment such as tables and chairs appropriate for the work task.

- Avoid work positions above shoulder level or with static holding during assembly operations.

  - When working above shoulder level, reduce the load on the static muscles by lowering the weight of the tool, using for example torque arms, hose reels or weight balancers. You can also reduce the load on the static muscles by holding the tool close to the body.

  - Take frequent breaks.

  - Avoid extreme arm or wrist postures, particularly during operations requiring a degree of force.

- Adjust for a convenient field of vision that requires minimal eye and head movements.

- Use appropriate lighting for the work task.

- Select the appropriate tool for the work task.

- In noisy environments, use ear protection equipment.

- Use high-quality inserted tools and consumables to minimize exposure to excessive levels of vibration.

- Minimize exposure to reaction forces.

  - When cutting:

    A cut-off wheel can get stuck if the cut-off wheel is bent or not guided properly. Use the correct flange for the cut-off wheel and avoid bending the cut-off wheel during operation.

  - When drilling:

    The drill might stall when the drill bit breaks through. Use support handles if the stall torque is high. The safety standard ISO11148 part 3 recommends using a device to absorb a reaction torque above 10 Nm for pistol grip tools and 4 Nm for straight tools.

  - When using direct-driven screwdrivers or nutrunners:

    Reaction forces depend on the tool settings and joint characteristics. Strength and posture determine the amount of reaction force that an operator can tolerate. Adapt the torque setting to the operator's strength and posture and use a torque arm or reaction bar if the torque is too high.

- In dusty environments, use a dust extraction system or wear a mouth protection mask.

# Wrong handling

- The operation of the MWR-50 TA must be carried out by the middle of the handle.

- Pull / Push only in the tightening direction.

- Do not touch the body of the MWR-50 TA during tightening operations. Positioning the thumb on the tube alters the click value!

- Do not hold the body of the MWR-50 TA during tightening operations. The operation of the MWR-50 TA must be carried out by the middle of the handle.

# Correct handling and click tightening

- The screw should be tightened in even strokes.

- The closing speed should allow an immediate interruption of the tightening operation as the MWR-50 TA clicks.

- The operation of the MWR-50 TA must be carried out by the middle of the handle.

- The force should be one-handed, uniform, parallel and applied with no interruptions until the tool clicks.

After the automatic release (click), the MWR-50 TA must not be moved further.

# Operating Instructions

# Adjusting the click-torque

1. Insert the Setting key in the MWR-50 TA.

2. Rotate A counterclockwise to unlock the Setting key.

3. Rotate B clockwise to increase the torque, or counterclockwise to decrease the torque.

4. Rotate A clockwise to lock the Setting key.

   Make sure that the Setting key is locked properly after adjusting the mechanical click. After locking the Setting key, it is highly recommended to perform at least 25 clicks to verify the mechanical click suits.

   The label printed on each MWR-50 TA indicates the torque range of the wrench.

# Tightening Test

The Focus 61 sends the tightening program (Pset and Job) to the MWR-50 TA.

For more information on the configuration and the use of MWR-50 TA, refer to the Focus 61 User Guide.

When the MWR-50 TA receives the tightening program and the wrench is ready for use, the blue LED flashes.

Load the MWR-50 TA following the direction of the arrow as shown on the label on the MWR-50 TA body (see the figure below):

A | Blue LED | B | Tightening direction

During the measurement (MWR-50 TA is loaded with torque), the yellow LED flashes.

At the end of each tightening, the LEDs are alight according to the test result:

- Green LED: Tightening OK

- Red LED: Tightening NOT OK

# Service

# Maintenance Instructions

# Service Recommendations

Preventive maintenance is recommended at regular intervals. See the detailed information on preventive maintenance. If the product is not working properly, take it out of service and inspect it.

If no detailed information about preventive maintenance is included, follow these general guidelines:

- Clean appropriate parts accurately

- Replace any defective or worn parts

# Cleaning

Keep the MWR-50 TA clean.

After use, remove any traces of oil and grease from the MWR-50 TA with a soft cloth and a soft surface cleaner for oil/grease. Do not use aggressive or abrasive cleaner.

Use an anti-static cleaning cloth in order to remove dust from the MWR-50 TA.

Avoid using harsh detergents to clean the MWR-50 TA.

Clean the contact of the MWR-50 TA by using an electrical contact cleaner solution.

# Recycling

# Environmental Regulations

When a product has served its purpose it has to be recycled properly. Dismantle the product and recycle the components in accordance with local legislation.

Batteries shall be taken care of by your national battery recovery organization.

# Recycling information

| PART | RECYCLE AS
--- | --- | ---
1 | Transducer | WEEE
2 | Washer | Iron
3 | Spine | Iron
4 | Tube | Mixed waste: not recyclable
5 | Cylinder | Steel
6 | Washer | Iron
7 | Support | Mixed waste: not recyclable
8 | Spring | Steel
9 | Gear Washer & Nut | Steel
10 | Battery cup | Steel
11 | Battery | Battery
12 | Contact | Steel
13 | Electronic board | WEEE
14 | Electronic cover | Plastic
15 | Contacts | Steel
| Screw | Steel