PreCise WCM-02 User manual

PreCise MRM
Installation and Operation Manual
WCM-02
1311 East Franklin Road, Suite 102
Meridian, Idaho 83642
Support: 1-888-254-1634
www.PreCiseMRM.com
a subsidiary of FORCE America
WCM-02C
Copyright 2017
Sales: 1-888-449-0357
p. 1 of 14
Air & Road Conditions (ARC)
WCM-02 Installation and Operation Manual
Product Description
The PreCise®ARC System, WCM-02, is a remote in-cab display designed to connect to
a wired or wireless ARC sensor. The display collects accurate road and air conditions
information from the sensors and presents the information to the user on an intuitive,
easy-to-read screen. Easily view and collect data critical to decision making including
relative humidity, dew point, air temperature and road temperature.
Features
• Sunlight readable, full color display
• Backlight: User selectable and auto-dimming
• Display Units: °C or °F, User selectable
• Update Frequency: 1 to 60 seconds, User selectable
• Power: 9.8V-32V vehicle power
• Serial Interfaces: RS-232, SAE J-1708, CAN

PreCise MRM
Installation and Operation Manual
WCM-02
1311 East Franklin Road, Suite 102
Meridian, Idaho 83642
Support: 1-888-254-1634
www.PreCiseMRM.com
a subsidiary of FORCE America
WCM-02C
Copyright 2017
Sales: 1-888-449-0357
p. 2 of 14
Warnings & Cautions
• Read and follow all safety rules and instructions before installing or operating this equipment.
• Never operate a vehicle within a closed area. Always assure proper ventilation before starting
engine.
• Always use eye protection. Use goggles that are ANSI approved against impacts and shattering.
• Before wiring, disconnect the negative cable from the battery terminal. Failure to do so may result in
electric shock or injury due to electrical shorts. Batteries can generate explosive gases. Keep sparks,
flames and smoking materials away from batteries. Always wear eye protection around batteries.
• Do not damage pipe or wiring when drilling holes. When drilling holes in the chassis for installation,
take precautions so as not to contact, damage or obstruct pipes, fuel lines, tanks or electrical wiring. Failure
to take such precautions may result in fire.
• Do not use bolts or nuts in the brake or steering systems to make ground connections. Bolts or
nuts used for the brake or steering systems (or any other safety-related system), or tanks should NEVER be
used for installations or ground connections. Using such parts could disable control of the vehicle and cause
fire etc.
• Arrange the wiring so it is not crimped or pinched by a sharp edge. Route the cables and wiring away
from moving parts (like the seat rails) or sharp or pointed edges. This will prevent crimping and damage to
the wiring. If wiring passes through a hole in metal, use a rubber grommet to prevent the wires insulation
from being cut by the metal edge of the hole.
• When making connections to the vehicle's electrical system, be aware of the factory installed components
(e.g. on-board computer). Do not tap into these leads to provide power for this unit. When connecting the
unit to the fuse box, make sure the fuse for the intended circuit has the appropriate amperage. Failure to do
so may result in damage to the unit and/or the vehicle.
• Be sure to connect the color coded leads according to the diagram. Incorrect connections may cause the
unit to malfunction or damage to the vehicle's electrical system.
• To avoid property damage, personal injury, or death, park the vehicle on a flat level surface, set the parking
brake, turn the engine off, and chock the wheels before beginning installation.
• Do not mount the module in a location that could interfere with proper operation of the vehicle, such as
behind the gas or brake pedals.
• Avoid any circuits associated with the airbag system. Inadvertent airbag deployment may cause personal
injury or death.

PreCise MRM
Installation and Operation Manual
WCM-02
1311 East Franklin Road, Suite 102
Meridian, Idaho 83642
Support: 1-888-254-1634
www.PreCiseMRM.com
a subsidiary of FORCE America
WCM-02C
Copyright 2017
Sales: 1-888-449-0357
p. 3 of 14
INSTALLATION INSTRUCTIONS
Before You Start
Prior to installing the PreCise®ARC sensor and display, take time to familiarize yourself
with the installation instructions, theory of operation, and system components. Check
the contents of the shipping package and verify the display and appropriate harness are
included.
Mounting Locations
Select a mounting location that allows the operator to see the display without distracting
from the safe operation of the vehicle. The mounting surface should be relatively flat
and smooth. Prior to attaching the adhesive strips, ensure the mounting surface is
clean and free from contaminants.
Electrical Connections
The WCM-02 is designed to operate from switched 9.8-32Vdc power. It should typically
be connected to the ignition signal so that the display is on when the vehicle is running,
and off otherwise.
An in-line fuse, rated for three or five amps should be used for the ignition
connection. Under no circumstances should this connection be made directly to
vehicle power without fuse protection.
The red wire from the harness should be connected to switched power, and the black
wire should be connected to battery negative or chassis ground.
If a wired sensor (TS-01) is being installed, connect the M8 extension cable to the M8
connector on the harness.

PreCise MRM
Installation and Operation Manual
WCM-02
1311 East Franklin Road, Suite 102
Meridian, Idaho 83642
Support: 1-888-254-1634
www.PreCiseMRM.com
a subsidiary of FORCE America
WCM-02C
Copyright 2017
Sales: 1-888-449-0357
p. 4 of 14
Figure 1: Wiring for WTS-01
Figure 2: Wiring for TS-01

PreCise MRM
PreCise
Installation and Operation Manual
WCM-02
1311 East Franklin Road, Suite 102
Meridian, Idaho 83642
Support: 1-888-254-1634
www.PreCiseMRM.com
a subsidiary of FORCE America
WCM-02C
Copyright 2017
Sales: 1-888-449-0357
p. 5 of 14
To interface the RS-232 output to an IX-403-H, connect the DB-9 connector on the
display harness to the appropriate connector on the IX-403-H. To interface the RS-232
output to an IX-101-H, a DB-9 pigtail harness will need to be added to the IX-101-H
connector if it does not currently have one. The green wire should be inserted in
position 6 of the IX-101-H connector. The white wire should be inserted in position 7.
Figure 3: Connections for IX-101
For questions regarding installation or operation, please contact PreCise Support
at 888-254-1634 during normal business hours (7AM-6PM Mountain Time,
Monday-Friday) or [e-mail].
DB-9

PreCise MRM
Installation and Operation Manual
WCM-02
1311 East Franklin Road, Suite 102
Meridian, Idaho 83642
Support: 1-888-254-1634
www.PreCiseMRM.com
a subsidiary of FORCE America
WCM-02C
Copyright 2017
Sales: 1-888-449-0357
p. 6 of 14
Main Display
Display Options
Pairing Sensor to Display
The first time a sensor and display are installed or if either is replaced, they will need to
be paired.
• Hit the MENU button.
• Use the UP (▲) and DOWN (▼) buttons to underline “Sensor Selection”.

PreCise MRM
Installation and Operation Manual
WCM-02
1311 East Franklin Road, Suite 102
Meridian, Idaho 83642
Support: 1-888-254-1634
www.PreCiseMRM.com
a subsidiary of FORCE America
WCM-02C
Copyright 2017
Sales: 1-888-449-0357
p. 7 of 14
• Hit the SELECT button.
• With “Scan sensors” underlined, hit SELECT again.
• While the display shows “Scanning” install the battery in the sensor or tap it a few
times to wake it up. If you are pairing to a wired sensor, it will transmit as long as
it has power.
• When you see the serial number of the sensor you are pairing, underline it with
the UP (▲) and DOWN (▼) buttons and hit SELECT.
• With “Temperature” underlined, hit SELECT. This will take you to the main
display screen showing air and road temperature, as well as dewpoint (or

PreCise MRM
Installation and Operation Manual
WCM-02
1311 East Franklin Road, Suite 102
Meridian, Idaho 83642
Support: 1-888-254-1634
www.PreCiseMRM.com
a subsidiary of FORCE America
WCM-02C
Copyright 2017
Sales: 1-888-449-0357
p. 8 of 14
frostpoint) and relative humidity. Note that it could take up to a couple of minutes
before data from a wireless sensor appears.
Brightness Control
The brightness of the display can be controlled in a few ways. Even after power is
removed from the display, it will remember the last setting.
• From the main display screen, simply hit the UP (▲) or DOWN (▼) buttons to
increase or decrease the brightness.
• Alternatively, hit the MENU button, underline “Brightness”, and hit SELECT.
• From this screen, you can select a set level or “Brightness AUTO”, which will
automatically adjust the brightness level based on ambient light conditions.
Underline your choice and hit SELECT. This will take you back to the main
display screen.

PreCise MRM
Installation and Operation Manual
WCM-02
1311 East Franklin Road, Suite 102
Meridian, Idaho 83642
Support: 1-888-254-1634
www.PreCiseMRM.com
a subsidiary of FORCE America
WCM-02C
Copyright 2017
Sales: 1-888-449-0357
p. 9 of 14
Units Configuration (°F or °C)
Once the configuration is selected, the setting is saved until the next time it is changed.
• Hit the MENU button.
• Use the UP (▲) and DOWN (▼) buttons to underline “Configuration”.
• Hit the SELECT button, then underline the desired units and hit SELECT again.
This will take you back to the main display screen.

PreCise MRM
Installation and Operation Manual
WCM-02
1311 East Franklin Road, Suite 102
Meridian, Idaho 83642
Support: 1-888-254-1634
www.PreCiseMRM.com
a subsidiary of FORCE America
WCM-02C
Copyright 2017
Sales: 1-888-449-0357
p. 10 of 14
Signal Strength
This screen shows the relative strength of the wireless signal that the WCM-02 is receiving from
the sensor. The signal strength can range from 1 to 255. The higher the number, the better,
but even a low value will be sufficient as long as the signal is received consistently. This screen
can be used to evaluate the physical placement of both the WCM-02 and the temperature
sensor.
•Hit the MENU button.
•Use the UP (▲) and DOWN (▼) buttons to underline “Signal Strength”.
•Hit the SELECT button to display the received signal strength. Hit MENU to
return to the Menu screen.

PreCise MRM
Installation and Operation Manual
WCM-02
1311 East Franklin Road, Suite 102
Meridian, Idaho 83642
Support: 1-888-254-1634
www.PreCiseMRM.com
a subsidiary of FORCE America
WCM-02C
Copyright 2017
Sales: 1-888-449-0357
p. 11 of 14
Report Interval
The time between temperature and humidity readings being sent from the wireless sensor
(WTS-01) to the WCM-02 display is controlled with this setting. The wired sensor (TS-01) will
report every second, regardless of this setting. Once the interval is selected, the setting is saved
until the next time it is changed. The default report interval is once every two seconds.
Increasing the time between reports will provide a longer battery life for the WTS-01 wireless
sensor.
•Hit the MENU button.
•Use the UP (▲) and DOWN (▼) buttons to underline “Report Interval”.
•Hit the SELECT button, then increment or decrement the interval with the UP (▲)
and DOWN (▼) buttons. Hit SELECT again. This will take you back to the main
display screen.

PreCise MRM
Installation and Operation Manual
WCM-02
1311 East Franklin Road, Suite 102
Meridian, Idaho 83642
Support: 1-888-254-1634
www.PreCiseMRM.com
a subsidiary of FORCE America
WCM-02C
Copyright 2017
Sales: 1-888-449-0357
p. 12 of 14
Accel Settings
The wireless sensor (WTS-01) will “wake up” and determine if its paired display is on,
based on sensing movement via the built-in accelerometer and periodically based on
the wake interval. The wired sensor (TS-01) does not have an accelerometer. This
screen will show the latest accelerometer readings in each axis, as well as the peak
readings. Additionally, it will show the number of times the sensor has been brought out
of sleep mode by the accelerometer without the display being on.
•Hit the MENU button.
•Use the UP (▲) and DOWN (▼) buttons to underline “Accel Settings”.
•Hit the SELECT button.
•To clear the peak and false start readings, hit the SELECT button, underline
“yes” and hit SELECT again. To return to the menu screen, hit the MENU button.

PreCise MRM
Installation and Operation Manual
WCM-02
1311 East Franklin Road, Suite 102
Meridian, Idaho 83642
Support: 1-888-254-1634
www.PreCiseMRM.com
a subsidiary of FORCE America
WCM-02C
Copyright 2017
Sales: 1-888-449-0357
p. 13 of 14
Wake Interval
The wireless sensor (WTS-01) will “wake up” and determine if its paired display is on,
based on sensing movement via the built-in accelerometer and periodically based on
the wake interval. The wired sensor (TS-01) will report as long as it has power,
regardless of this setting. Once the interval is selected, the setting is saved until the
next time it is changed. The default interval is 10 minutes. Increasing the interval
(say from 10 minutes to 20 minutes) can increase the battery life. If the WTS-01
sensor is not consistently waking up due to motion, the wake interval can be reduced
to enable a faster response when the display is powered, at the expense of reduced
sensor battery life.
•Hit the MENU button.
•Use the UP (▲) and DOWN (▼) buttons to underline “Wake Interval”.
•Hit the SELECT button, then increment or decrement the interval with the UP (▲)
and DOWN (▼) buttons. Hit SELECT again. This will take you back to the main
display screen.

PreCise MRM
Installation and Operation Manual
WCM-02
1311 East Franklin Road, Suite 102
Meridian, Idaho 83642
Support: 1-888-254-1634
www.PreCiseMRM.com
a subsidiary of FORCE America
WCM-02C
Copyright 2017
Sales: 1-888-449-0357
p. 14 of 14
Accel Threshold
The wireless sensor (WTS-01) will “wake up” and determine if its paired display is on,
based on sensing movement via the built-in accelerometer and periodically based on
the wake interval. The wired sensor (TS-01) does not have an accelerometer. If the
accelerometer detects movement above the threshold setting, it will wake the sensor.
The higher the setting, the more force will be required to wake the sensor. The
default is set to “3”, with a maximum of “127”. In situations where the vehicle is
frequently exposed to gusting winds or similar environments, the user may choose to
increase this threshold to avoid waking the sensor inappropriately. Select the lowest
number (start with “4” or “5”) that appears to sufficiently reduce the number of false
starts while retaining the sensitivity to wake the sensor appropriately.
•Hit the MENU button.
•Use the DOWN (▼) buttons to scroll past the bottom of the screen and underline
“Accel Threshold”.
•Hit the SELECT button, then increment or decrement the threshold with the UP
(▲) and DOWN (▼) buttons. Hit SELECT again. This will take you back to the
menu screen.

PreCise MRM
Installation and Operation Manual
WCM-02
1311 East Franklin Road, Suite 102
Meridian, Idaho 83642
Support: 1-888-254-1634
www.PreCiseMRM.com
a subsidiary of FORCE America
WCM-02C
Copyright 2017
Sales: 1-888-449-0357
p. 15 of 14
MANUFACTURER LIMITED WARRANTY AND LIMITATION OF LIABILITY
Manufacturer warrants that on the Date of Purchase this Product will conform to Manufacturer's published specifications
for the product, which are available from Manufacturer on request, and Manufacturer warrants that the product is free
from defects in materials and workmanship. This Limited Warranty extends for twelve (12) months from the date of
delivery. Manufacturer will, at its option, repair or replace any product found by Manufacturer to be defective and subject
to this Limited Warranty.
This Limited Warranty does not apply to parts or products that are misused; abused; modified; damaged by accident,
fire or other hazard; improperly installed or operated; or not maintained in accordance with the maintenance procedures
set forth in Manufacturer's Installation and Operating Instructions.
To obtain warranty service, you must ship the product(s) to the specified Manufacturer location within thirty (30) days
from expiration of the warranty period. Contact customer service to obtain a RMA number and write the number on the
shipping container. You must prepay shipping charges and use the original shipping container or equivalent. Return
shipping charges within the United States, Canada, and Puerto Rico, will be paid by Manufacturer. This Limited
Warranty will apply only to a product purchased and located in the United States, Canada,or Puerto Rico.
EXCLUSION OF OTHER WARRANTIES: MANUFACTURER MAKES NO OTHER WARRANTIES, EXPRESSED,
IMPLIED OR STATUTORY. THE IMPLIED WARRANTIES FOR MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE HEREBY EXCLUDED AND SHALL NOT APPLY TO THE PRODUCT. BUYER'S SOLE
AND EXCLUSIVE REMEDY IN CONTRACT, TORT OR UNDER ANY OTHER THEORY AGAINST MANUFACTURER
RESPECTING THE PRODUCT AND ITS USE SHALL BE THE REPLACEMENT OR REPAIR OF THE PRODUCT AS
DESCRIBED ABOVE.
LIMITATION OF LIABILITY: IN THE EVENT OF LIABILITY FOR DAMAGES ARISING OUT OF THIS LIMITED
WARRANTY OR ANY OTHER CLAIM RELATED TO MANUFACTURER'S PRODUCTS, MANUFACTURER'S
LIABILITY FOR DAMAGES SHALL BE LIMITED TO THE AMOUNT PAID FOR THE PRODUCT AT THE TIME OF
ORIGINAL PURCHASE. IN NO EVENT SHALL MANUFACTURER BE LIABLE FOR LOST PROFITS, THE COST OF
SUBSTITUTE EQUIPMENT OR LABOR, PROPERTY DAMAGE, OR OTHER SPECIAL, CONSEQUENTIAL OR
INCIDENTAL DAMAGES BASED UPON ANY CLAIM FOR BREACH OF CONTRACT, NEGLIGENCE OR OTHER
CLAIM, EVEN IF MANUFACTURER OR A MANUFACTURER'S REPRESENTATIVE HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES. Manufacturer shall have no further obligation or liability with respect to the product
or its sale, operation and use, and Manufacturer neither assumes nor authorizes the assumption of any other obligation
or liability in connection with such product.
This Limited Warranty gives you specific legal rights, and you may also have other legal rights, which vary, from state
to state. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above
exclusion or limitation may not apply to you.
Any oral statements or representations about the product, which may have been made by salesmen or Manufacturer
representatives, do not constitute warranties. This Limited Warranty may not be amended, modified or enlarged, except
by a written agreement signed by an authorized official of Manufacturer that expressly refers to this Limited Warranty.
Part 15 Notice:
This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device
may not cause harmful interference, and (2) this device must accept any interference received, including interference
that may cause undesired operation.