Ascent Delta Wireless Manual

Delta Wireless
INTRODUCTION
Thank you for your purchase of an Ascent™ cycle
computer. With all the features that a professional rider
needs to keep track of a ride, the Ascent Delta Wireless
is the perfect accessory for any cyclist. The added
convenience of wireless transmission makes
installation simple!
BATTERY INSTALLATION
To help you get started quickly, the computer and
transmitter batteries have been installed at the factory.
Under normal use the batteries should last one to two
years. The Delta Wireless uses a 3V CR2032 button
cell battery (available at most drug stores or electronic
shops) in both the computer and the sensor/transmitter.
NOTE: Most problems that occur with cyclocomputers
are caused by dead or weak batteries.
Should you need to replace the batteries, follow the
steps below.
COMPUTER HEAD
1. NOTE: During a battery change, all data will be cleared
from memory. Make a note of your current wheel size
settings and cumulative odometer mileage before
replacing the battery so you can reprogram these
values once the new battery is installed (see "Program
Wheel Size" and "Program the Odometer").
2. Remove the battery cover from the underside of the
computer using a coin. See Figure 1. Remove the old
battery and dispose of properly.
Fig 1
3. Install a fresh battery with the positive (+) side facing
the battery cover.
4. Reinstall the battery cover securely, making sure the
rubber O-ring is still in place and does not get pinched
or distorted.
5. If for some reason the screen is blank or shows an
irregular display after a battery change, depress the
CLEAR button on the underside of the computer head.
See Figure 7.
SENSOR/TRANSMITTER
1. Remove the battery cover from the back of the
transmitter using a coin. See Figure 1. Remove the old
battery and dispose of properly.
2. Install a fresh battery with the positive (+) side facing
the battery cover.
3. Reinstall the battery cover securely, making sure that
the rubber O-ring is still in place and does not get
pinched or distorted.
COMPUTER FUNCTIONS
The Ascent Delta Wireless offers the following functions,
which can be accessed by pressing the LEFT button.
CURRENT SPEED (M/H or K/H)
Displays current speed, up to 100 M/H or K/H. Accurate
to 0.1M/H or K/H. Always displayed at the top of the
screen.
AVERAGE SPEED (AVG)
Calculates average speed based on ride time (ATM) & trip
distance (DST).
MAXIMUM SPEED (MAX)
Displays highest speed attained during a ride (or since
last reset), up to 100 M/H or K/H.
SPEED COMPARISON (5or 6)
Compares current speed to average speed. As you ride, a
(5) or (6) will appear next to current speed to indicate
whether your current speed is above (5) or below (6)
your average speed. This function is automatic, requires
no programming and cannot be disabled.
CLOCK (CLK)
Displays time of day in a 12 hour or 24 hour format.
AUTOMATIC RIDE TIMER (ATM)
Auto start/stop timer is activated by front wheel
movement and records actual ride time up to 24:00:00.
TRIP DISTANCE (DST)
Displays distance traveled during current ride (or since
last reset), up to 9999.9 miles or kilometers.
ODOMETER (ODO)
Displays cumulative ride distance, up to 99,999.9 miles
or kilometers.
DUAL WHEEL SIZE SETTINGS (1) or (2)
Wheel circumference is used to calculate speed and
distance. The Delta Wireless includes two wheel size
settings ( 1 and 2 ), which allow you to use the computer
on two bikes with different wheel sizes (e.g. your road
bike and mountain bike).
AUTO SLEEP
To prolong battery life, the Delta Wireless will
automatically enter "sleep" mode after 5 minutes of non-
use. In sleep mode, only the time of day will be displayed.
The computer will automatically exit sleep mode as soon
as any button is pressed.
DETERMINE WHEEL SIZE
The Delta Wireless uses wheel circumference (measured
in millimeters) to calculate speed and distance. Before
you can program the computer you must calculate wheel
circumference using one of the three methods below.
1. Select size from chart (least accurate): Use the chart
below to find the circumference for your tire size. The
chart lists the programming sizes for some of the most
popular tire sizes currently in use. These numbers
are estimations which may not precisely match the
circumference of your wheel, due to variations in tire
size between brands and models.
CIRCUMFERENCE
TIRE SIZE TIRE SIZE
16 x 1.75 1272 27 x 1
20 x 1.75 1590 28 x 1.5
3
/
24 x 1 1948 28 x 1.75
8
24 x 1.75 1907 28 x 1
1954
26 x 0.75 28 x 1
26 x 1.0 1973 700 x 18c
3
/
26 x 1 2105 700 x 20c
8
26 x 1.5 2026 700 x 23c
26 x 1.6 2051 700 x 25c
26 x 1.75 2070 700 x 28c
26 x 1.9 2089 700 x 32c
26 x 2 2114 700 x 37c
1 /
26 x 2 2133 700 x 40c
8
2. Measure wheel diameter (more accurate): Measure
your wheel diameter (including wheel and tire) in
millimeters (1 inch = 25.4mm) and multiply by 3.1416.
This value is your wheel circumference.
3. Perform roll-out test (most accurate): See Figure 2.
Fig 2
STEP 1: Stand your bicycle upright. With your tires
inflated to the proper pressure, rotate your front wheel so
that the valve is located at the bottom (6 o'clock position).
Make a mark on the ground to indicate the valve location.
STEP 2: Roll the bicycle forward in a straight line for one
complete wheel revolution, until the valve is again at the
bottom (ideally, you should be on the bike). Make a mark
on the ground to indicate the valve location.
STEP 3: Measure the distance between the marks in
millimeters (1 inch = 25.4mm). This value is your wheel
circumference.
PROGRAM THE COMPUTER
Before using your Delta Wireless, you must program
wheel size (see "Determine Wheel Size," above), select
a speed scale (miles or kilometers), set the odometer
(if desired), and set the clock. The first step is to set the
clock. To enter the set-up mode, depress the SET button
on the underside of the computer. See Figure 7.
SET THE CLOCK
The Delta Wireless is equipped with a digital clock that
displays time of day in a 12 hour or 24 hour format.
STEP 1: Using the tip of a pen, depress the SET button
on the underside of the computer to enter the Clock set-
up screen.
STEP 2: "12" or "24" will flash in the lower line of the
display. Press the RIGHT button to select 12 hour or
24 hour mode. Press the LEFT button to confirm your
selection and advance to the hours setting.
STEP 3: The hours will flash. Press the RIGHT button (or
press and hold) to advance the hours. If you selected 12
hour mode, "PM" will appear for hours between noon
and midnight. Press the LEFT button to advance to the
minutes setting.
STEP 4: The minutes will flash. Press the RIGHT button
(or press and hold) to advance the minutes. Press the
LEFT button to set the time and advance to the speed
scale selection screen.
SELECT SPEED SCALE
CIRCUMFERENCE
The Delta Wireless is capable of displaying speed and
distance information in either miles or kilometers.
1 /
2199
4
2224
STEP 1: After setting the clock, the computer will
2268
automatically advance to the speed scale selection screen.
1
/
2265 "M/H" or "K/H" will flash in the display screen. Press the
2
3 RIGHT button to select miles (M/H) or kilometers (K/H).
/ 2205
8
2102
STEP 2: Press the LEFT button to confirm your selection
2114
and advance to the wheel size setting screen.
2133
PROGRAM WHEEL SIZE
2146
STEP 1: After the speed scale has been selected, the
2149
computer will automatically advance to the first wheel
2174
size programming screen (b1). The left-most digit will
2205
flash. Press the RIGHT button to adjust the flashing digit
2224
according to the wheel circumference value determined
above. Press the LEFT button to advance to the next
flashing digit.
1x
Distance in mm / inch