MSW MINIAC - User Manual

26441 3/18 | 85-000862_INST_C
MINIAC SPEED & CADENCE SENSOR INSTRUCTIONS
6400 WEST 105TH STREET // BLOOMINGTON, MN 55438 // 1-855-883-6563 // WWW.MSWBIKE.COM
Thank you for purchasing an MSW
®
Speed and Cadence Sensor!
At MSW
®
we believe that having essential accessories makes a good
ride great.
WARNING: Cycling can be dangerous. Bicycle products should
be installed and serviced by a professional mechanic. Never modify your
bicycle or accessories. Read and follow all product instructions and warnings
including information on the manufacturer’s website. Inspect your bicycle
before every ride. Always wear a helmet.
For additional product and safety information go to: www.mswbike.com/safety.
COMPATIBILITY AND INTENDED USE
The MSW Speed and Cadence Sensor is compatible with 2.4g digital wireless
cycling computers. They need to have the capability to accept speed and
cadence data.
The MSW Miniac Speed and Cadence Sensor is intended for use
on roads and paved trails as well as ASTM Condition 2 use.
This includes smooth paved roads, unpaved and gravel roads,
and trails with moderate grades where loss of contact with
ground may occur but drops are less than 6" (15cm).
INCLUDED PARTS
Please check that all the following items have been included with the cycle
computer before starting.
A Sensor
B Rubber shim
C. Wheel magnet
D. Cadence magnet
E. Zip ties
F. Rubber O-ring
INSTALLATION
MOUNTING THE SENSOR
The sensor is mounted on the non-driveside chainstay, just behind the bottom
bracket. The distance between the computer head unit at the handlebar and
the sensor should not exceed 150cm.
The larger part of the sensor reads the cadence magnet to register cadence,
etc. The adjustable arm of the sensor unit registers speed, distance, etc.
The larger part of the sensor faces the front of the bike, and the adjustable arm
faces the back and sits along the inside of the chainstay. Loosen the knurled
dial in front of the adjustable arm to rotate it in the optimal position (fig. 1).
Do not tighten it until the optimal position has been determined.
Place the included rubber pad between the sensor and the chainstay. The sensor
is attached using two included zip ties, but do not fully tighten them until the
wheel and cadence magnets are in place, and the adjustments that yield the best
readings are made between the sensor, sensor arm, and the magnets (fig. 2).
The distance between the cadence magnet and the sensor, and between
the rear wheel magnet and the sensor arm should not exceed 3mm.
MOUNTING THE CRANK AND WHEEL MAGNETS
1. Place the cadence magnet on the inside of the crank arm 2 to 3cm up the
arm from the pedal spindle and zip tie it in place.
2. Position the larger part of the sensor close enough to the crank arm that the
required distance between it and the cadence magnet is achieved (fig. 3).
Checking operation of the sensor is most easily done with the bike
in a repair stand rather than doing it while riding.
3. Using this sensor placement as a guide, position the wheel magnet in the
approximate area that it will pass the sensor arm on the inside of the
chainstay. The wheel magnet is tightened to the spoke by threading it into
the magnet bracket that sits behind the spoke (fig. 4).
4. Holding the larger part of the sensor in place with one hand, rotate the arm
of the sensor so that the required distance between it and the wheel
magnet is achieved.
Bracket
Nylo n
Ties
Rubber
Bracket
Cycle Computer
Rubber Pad
Bracket
Cycle Computer
1–3mm
1–3mm
Spoke
Chainstay
(non-driveside)
Rear
Wheel
Front
Wheel
Cadence Sensor
Speed Sensor
Zip Tie
Cadence Magnet
Crank
Pedal
Cadence Sensor
1–3mm
Time Average Speed Maximum Speed Distance
Odometer Calorie Consumption
Average Cadence Maximum Cadence Trip Cadence
Unit
Tire size
Time
Time
Gender / Weight
ODO
Temperature
Gender / Weight
M
(
MODE
)
: Next option
C: Next setting
[
SET
]
: Change the value
Temperature °C/°F
H1 (Male)
H2 (Female)
WS: 0100–2999mm
KM/H+Kg+KM
M/H+Lb+KM
12H/24H
[
SET
]
Weight: 20–150Kg
44–330 lb
3 seconds
Searching for 30 seconds
Press and hold mode
key for 3 seconds
After 5 seconds of receiving
code from the sensor
PAIRED NOT PAIRED
C BUTTON
MODE BUTTON
M M
C
M/CM/C
M/C
M/CM/C
M
M
M
MMM
[
SET
][
SET
]
C
M/C Save and Exit
Hour (1–24)
Minute (0–59)
Second (0–59)
>M
[
SET
]
C C
C
C
PRESS
Not paired:
• Check sensor alignment
• Check battery
Figure 1
Figure 2
Bracket
Nylo n
Ties
Rubber
Bracket
Cycle Computer
Rubber Pad
Bracket
Cycle Computer
1–3mm
1–3mm
Spoke
Chainstay
(non-driveside)
Rear
Wheel
Front
Wheel
Cadence Sensor
Speed Sensor
Zip Tie
Cadence Magnet
Crank
Pedal
Cadence Sensor
1–3mm
Time Average Speed Maximum Speed Distance
Odometer Calorie Consumption
Average Cadence Maximum Cadence Trip Cadence
Unit
Tire size
Time
Time
Gender / Weight
ODO
Temperature
Gender / Weight
M
(
MODE
)
: Next option
C: Next setting
[
SET
]
: Change the value
Temperature °C/°F
H1 (Male)
H2 (Female)
WS: 0100–2999mm
KM/H+Kg+KM
M/H+Lb+KM
12H/24H
[
SET
]
Weight: 20–150Kg
44–330 lb
3 seconds
Searching for 30 seconds
Press and hold mode
key for 3 seconds
After 5 seconds of receiving
code from the sensor
PAIRED NOT PAIRED
C BUTTON
MODE BUTTON
M M
C
M/CM/C
M/C
M/CM/C
M
M
M
MMM
[
SET
][
SET
]
C
M/C Save and Exit
Hour (1–24)
Minute (0–59)
Second (0–59)
>M
[
SET
]
C C
C
C
PRESS
Not paired:
• Check sensor alignment
• Check battery
Bracket
Nylo n
Ties
Rubber
Bracket
Cycle Computer
Rubber Pad
Bracket
Cycle Computer
1–3mm
1–3mm
Spoke
Chainstay
(non-driveside)
Rear
Wheel
Front
Wheel
Cadence Sensor
Speed Sensor
Zip Tie
Cadence Magnet
Crank
Pedal
Cadence Sensor
1–3mm
Time Average Speed Maximum Speed Distance
Odometer Calorie Consumption
Average Cadence Maximum Cadence Trip Cadence
Unit
Tire size
Time
Time
Gender / Weight
ODO
Temperature
Gender / Weight
M
(
MODE
)
: Next option
C: Next setting
[
SET
]
: Change the value
Temperature °C/°F
H1 (Male)
H2 (Female)
WS: 0100–2999mm
KM/H+Kg+KM
M/H+Lb+KM
12H/24H
[
SET
]
Weight: 20–150Kg
44–330 lb
3 seconds
Searching for 30 seconds
Press and hold mode
key for 3 seconds
After 5 seconds of receiving
code from the sensor
PAIRED NOT PAIRED
C BUTTON
MODE BUTTON
M M
C
M/CM/C
M/C
M/CM/C
M
M
M
MMM
[
SET
][
SET
]
C
M/C Save and Exit
Hour (1–24)
Minute (0–59)
Second (0–59)
>M
[
SET
]
C C
C
C
PRESS
Not paired:
• Check sensor alignment
• Check battery
Figure 3
Bracket
Nylo n
Ties
Rubber
Bracket
Cycle Computer
Rubber Pad
Bracket
Cycle Computer
1–3mm
1–3mm
Spoke
Chainstay
(non-driveside)
Rear
Wheel
Front
Wheel
Cadence Sensor
Speed Sensor
Zip Tie
Cadence Magnet
Crank
Pedal
Cadence Sensor
1–3mm
Time Average Speed Maximum Speed Distance
Odometer Calorie Consumption
Average Cadence Maximum Cadence Trip Cadence
Unit
Tire size
Time
Time
Gender / Weight
ODO
Temperature
Gender / Weight
M
(
MODE
)
: Next option
C: Next setting
[
SET
]
: Change the value
Temperature °C/°F
H1 (Male)
H2 (Female)
WS: 0100–2999mm
KM/H+Kg+KM
M/H+Lb+KM
12H/24H
[
SET
]
Weight: 20–150Kg
44–330 lb
3 seconds
Searching for 30 seconds
Press and hold mode
key for 3 seconds
After 5 seconds of receiving
code from the sensor
PAIRED NOT PAIRED
C BUTTON
MODE BUTTON
M M
C
M/CM/C
M/C
M/CM/C
M
M
M
MMM
[
SET
][
SET
]
C
M/C Save and Exit
Hour (1–24)
Minute (0–59)
Second (0–59)
>M
[
SET
]
C C
C
C
PRESS
Not paired:
• Check sensor alignment
• Check battery
Figure 4
For off-road
riding and
jumps less than
6" (15cm)
B
A
E
C D
F

Summary

Cycling Safety Warnings

Compatibility and Intended Use

Wireless Cycling Computer Compatibility

Sensor is compatible with 2.4g digital wireless cycling computers requiring speed and cadence data.

Intended Use and Terrain

Intended for roads, paved trails, and ASTM Condition 2 use with moderate grades and drops.

Included Parts

Installation

Mounting the Sensor

Mount sensor on non-driveside chainstay behind bottom bracket. Adjust arm for optimal position and distance.

Mounting Crank and Wheel Magnets

Position cadence magnet on crank arm and wheel magnet on spoke, ensuring correct distance to sensor.

Pairing the MSW Miniac Double Wireless Computer

Maintenance and Battery

Maintenance

Periodically check sensor and magnet position. Ensure gap does not exceed 3mm.

Battery Replacement

Replace CR2032 battery when red light appears. Ensure correct polarity.

Battery Warnings

Follow safety guidelines to prevent damage, fire, or injury from lithium-ion coin-cell batteries.

Limited 2-Year Warranty

Warranty Coverage

Covers defects in materials and workmanship for two years from purchase.

Warranty Exclusions

Excludes damage from improper assembly, misuse, accidents, normal wear, and unauthorized modification.

Warranty Process

Return product to place of purchase with receipt for warranty inspection.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features
5. Warranty Information

The MSW Miniac Speed & Cadence Sensor is a bicycle accessory designed to provide speed and cadence data to compatible 2.4g digital wireless cycling computers. It is intended for use on roads, paved trails, and for ASTM Condition 2 use, which includes smooth paved roads, unpaved and gravel roads, and trails with moderate grades where loss of contact with the ground may occur, but drops are less than 6" (15cm).

Function Description:

The sensor works by detecting the rotation of a cadence magnet attached to the crank arm and a wheel magnet attached to a spoke. The larger part of the sensor reads the cadence magnet to register cadence, while the adjustable arm of the sensor unit registers speed and distance. This data is then wirelessly transmitted to a compatible cycling computer.

Important Technical Specifications:

• Compatibility: 2.4g digital wireless cycling computers capable of accepting speed and cadence data.
• Mounting Location: Non-driveside chainstay, just behind the bottom bracket.
• Sensor-to-Computer Distance: Should not exceed 150cm.
• Magnet-to-Sensor Distance: The distance between the cadence magnet and the sensor, and between the rear wheel magnet and the sensor arm, should not exceed 3mm.
• Battery Type: CR2032 coin-cell lithium-ion battery.
• Battery Life Indicator: A red light on the sensor indicates low battery.
• Environmental Use: Intended for conditions where drops are less than 6" (15cm). Not suitable for immersion or exposure to water/liquids, fire, explosion, or other hazards.
• Operating Temperature: Device should not be operated outside specified temperature ranges.

Usage Features:

• Installation:
  1. Place the included rubber pad between the sensor and the chainstay.
  2. Attach the sensor using two zip ties, but do not fully tighten initially.
  3. Place the cadence magnet on the inside of the crank arm, 2 to 3cm up from the pedal spindle, and secure it with a zip tie.
  4. Position the larger part of the sensor close enough to the crank arm to achieve the required 3mm distance to the cadence magnet.
  5. Position the wheel magnet to a spoke by threading it into the magnet bracket, ensuring it will pass the sensor arm on the inside of the chainstay.
  6. Rotate the adjustable arm of the sensor to achieve the required 3mm distance to the wheel magnet.
  7. Once optimal positions are determined for both magnets and the sensor, fully tighten the zip ties and the knurled dial on the sensor arm.
• Pairing with MSW Miniac Double Wireless Computer:
  1. In any mode, press and hold the M and C buttons for six seconds.
  2. Then, press the C button.
  3. The computer will search for 30 seconds.
  4. If paired, the computer will show the ID and return to the original page in 5 seconds.
  5. If not paired, check sensor and magnet alignment, and the battery. (For other compatible cycling computers, refer to their manufacturer's instructions for pairing).
• Testing: After installation and pairing, test to ensure the magnets are activating the sensor and the computer head unit is registering the magnets as they pass the sensor. This is most easily done with the bike in a repair stand.
• Adjustments: The knurled dial in front of the adjustable arm allows for rotation to achieve optimal position.

Maintenance Features:

• Regular Inspection: Periodically check the position of the sensor and magnets.
• Corrosion Check: Rust or corrosion on the magnet can cause malfunction.
• Gap Maintenance: Ensure the gap between the magnet and sensor does not exceed 3mm.
• Battery Replacement:
  1. When the red light on the sensor appears, the battery is low.
  2. Unscrew the back cover.
  3. Gently remove the old CR2032 battery.
  4. Replace with a new CR2032 battery, ensuring the (+) side faces up.
• Battery Warnings:
  • Do not leave the device exposed to heat sources or high-temperature locations (e.g., in direct sun in an unattended vehicle).
  • Remove the device from the vehicle or store it out of direct sunlight to prevent damage.
  • Do not disassemble, modify, remanufacture, puncture, or damage the device or batteries.
  • Do not immerse or expose the device or batteries to water or other liquids, fire, explosion, or other hazards.
  • Do not use sharp objects to remove batteries.
  • Replace batteries only with correct replacement batteries to avoid fire or explosion risks.
  • Dispose of batteries according to local waste disposal regulations.
  • Keep batteries away from children. Swallowing can lead to chemical burns, perforation of soft tissue, and death. Seek medical attention immediately if ingested.

Warranty Information:

MSW provides a limited 2-year warranty against defects in materials and workmanship from the original retail purchase date. This warranty is limited to the repair or replacement of the original product at MSW's option and is non-transferable. It does not cover damage from improper assembly, lack of maintenance, modification, competitive or commercial use, misuse, accidents, normal wear and tear, or installation of non-MSW compatible components. To claim warranty, return the product with a sales receipt to the original place of purchase.

MSW MINIAC Specifications

General

Brand	MSW
Model	MINIAC
Category	Bicycle Accessories
Language	English