Ascent Delta R Wireless User manual

Delta R Wireless
Cyclocomputer
INTRODUCTION
Thank you for purchasing an Ascent Wireless computer.
Packed with all the features that a professional rider needs to
keep track of a workout, the Delta R is a perfect training tool
for any cyclist. The added convenience of wireless transmis-
sion makes installation simple.
BATTERY INSTALLATION
To simplify installation, the Delta R computer and transmitter
are shipped with batteries installed. Replacement batteries are
available at most camera and electronic shops. Under normal
usage batteries should last approximately one year. Note:
Most problems that occur with cyclocomputers are caused by
dead or weak batteries. If you are having problems with your
computer’s operation, check and replace the batteries first.
COMPUTER/RECEIVER
The Delta R computer uses a common 3V CR2032 button cell
battery. See Figure 1.
STEP 1: To install or replace the battery, remove the battery
cover from the bottom of the computer using a small coin.
Remove the old battery and dispose of properly.
STEP 2: Install the new battery with the positive (+) pole fac-
ing the battery cover. Be careful when installing the battery not
to damage the battery contact.
STEP 3: Reinstall the battery cover and tighten firmly, mak-
ing sure the rubber O-ring does not get pinched or distorted,
as this will compromise the unit’s watertight seal.
Note: During a battery change programmed settings and
odometer mileage will be erased. Make
note of your current wheel size setting
and cumulative odometer mileage
before replacing the battery so you can
reprogram these values after the bat-
tery change (see “Programming Wheel
Size” and “Setting the Odometer”).
STEP 4: If for some reason the screen is blank or shows an
irregular display after a battery change, remove the battery
and install again. This will reset the computer’s microproces-
sor.
TRANSMITTER
The Delta R transmitter uses a 12V VR22 / L1028 / A23 bat-
tery.
STEP 1: To install or replace the battery, remove the battery
cover from the top of the transmitter case using a small coin.
Remove the old battery and dispose of properly.
STEP 2: Install a new battery with the positive (+) pole facing
the cover. Reinstall the battery cover and tighten firmly, mak-
ing sure that the rubber O-ring does not get pinched or dis-
torted, as this will compromise the unit’s watertight seal.
COMPUTER FUNCTIONS
CURRENT SPEED
Displays current speed up to 99.9 M/hr or KM/hr. Accurate to
0.1M/hr or KM/hr. Always displayed on top line.
SPEED BAR
Illuminated LCD segments on the screen align
with speed scale on computer bezel to indicate
current speed.
SPEED COMPARISON (+/-)
Compares current speed to average speed. As you ride, a (+)
or (-) will appear to the right of current speed to indicate
whether your current speed is above (+) or below (-) your
average speed. This function is automatic, requires no pro-
gramming and cannot be disabled.
CLOCK
Displays time of day in 12 hour or 24 hour format.
ODOMETER (ODO)
Displays cumulative ride distance, up to 9,999.9
miles or kilometers.
TRIP DISTANCE (DST)
Displays distance traveled during current ride
up to 999.99 miles or kilometers.
MAXIMUM SPEED (MXS)
Displays fastest speed attained during a ride, up
to 99.9 M/hr or KM/hr. Accurate to 0.1 M/hr or
KM/hr.
AVERAGE SPEED (AVS)
Displays average speed up to 99.9 M/hr or
KM/hr. Accurate to 0.1 M/hr or KM/hr.
Calculated using ride time (TM) and trip dis-
tance (DST).
AUTOMATIC RIDE TIMER
(TM)
Auto start/stop timer records actual ride time
up to 9:59:59. Activated by front wheel move-
ment.
CAL
Calculates calories burned (up to 1000 calories)
during a ride.
FAT
Calculates grams of fat burned (up to 1000
grams) during a ride.
SCAN
Allows hands free viewing of display screens.
When activated, the scan feature scrolls
through all display screens (except ODO and
CLOCK) on a continuous loop, displaying the
screens for four seconds each. To enter scan
mode, press the RIGHT button until “SCAN” appears in the
upper left corner of the display. Press the RIGHT button again
to exit scan mode.
MAINTENANCE INTERVAL REMINDER
A reminder to perform periodic maintenance at programmed
distance intervals. At the appointed distance intervals a
wrench icon will flash in the display screen. When the icon
appears, press the LEFT button to turn it off until the next
maintenance interval is due.
AUTO SLEEP
To prolong battery life, the Delta R will automatically enter
“sleep” mode after 5 minutes of non-use. The computer will
automatically restart when it receives input from the speed
sensor, or when any button is pressed.
PROGRAMMING THE COMPUTER
Before using your Delta R computer, you must program wheel
size, select a speed scale (Miles or Kilometers), input your age
and weight, select a clock mode (12H or 24H) and set the
clock and maintenance reminder. The first step is to determine
wheel size.
DETERMINING WHEEL SIZE
The Delta R uses wheel circumference (measured in millime-
ters) to calculate speed and distance. Note that while your
computer can be programmed to +/-1mm for total accuracy,
discrepancies of as much as 50mm will not have a significant
effect on accuracy in most situations. There are three methods
for determining wheel circumference:
1. Select size from chart below (least accurate)
2. Measure wheel diameter (more accurate)
3. Perform roll-out test (most accurate)
1. Chart: Use the chart to find the circumference for your tire
size, and enter this value in the computer (see “Programming
Wheel Size”). The chart lists circumferences for some of the
most popular tire sizes currently in use. These numbers are
only estimates which may not precisely match the circumfer-
ence of your wheel, due to variations in tire size between
brands and models.
2. Measure: Measure your wheel diameter (including wheel
and tire) in millimeters (1 inch = 25.4mm) and multiply by
3.1416. Enter this value in the computer (see “Programming
Wheel Size”).
3. Roll-out Test: See Figure 2.
STEP 1: Stand your bicycle upright. With your tire inflated to
its proper pressure, rotate your front wheel so that the valve is
located at the bottom (6 o’clock position). Make a mark on the
floor 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 bot-
tom (ideally, you should be on the bike). Make a mark on the
floor to indicate the valve location.
STEP 3: Measure the distance between the marks in millime-
ters (1 inch = 25.4mm). This value is your wheel circumfer-
ence. Enter this value in the computer (see “Programming
Wheel Size”)
PROGRAMMING WHEEL SIZE
After determining wheel circumference by one of the three
methods above, enter the value in the computer. The default
wheel size setting is 2124mm.
STEP 1: In any display screen press and hold both buttons
(LEFT and RIGHT) for three seconds to access the wheel size
programming screen.
STEP 2: The digit at the right of the screen will flash. Press
the RIGHT button to adjust the value. Then press the LEFT
button to advance to the next flashing digit.
STEP 3: Repeat this process until all digits have been set to
the appropriate value.
STEP 4: Press the LEFT button to confirm the value and pro-
ceed to the speed scale selection screen.
SELECTING MILES OR KILOMETERS
The Delta R is capable of displaying speed and distance infor-
mation in either miles or kilometers.
STEP 1: After programming wheel size (above), the
computer will automatically proceed to the speed scale selec-
tion screen, and “KM” will flash at the top of the screen.
STEP 2: Press the RIGHT button to select miles (M) or kilo-
meters (KM).
STEP 3: Press the LEFT button to confirm your selection and
proceed to the age input screen.
INPUT AGE
The Delta R uses your age and weight to measure calories and
fat burned.
STEP 1: After selecting speed scale (above), the computer
will automatically proceed to the age input screen. The left
digit will flash. Press the RIGHT button to adjust the value.
Then press the LEFT button to advance to the next flashing
digit.
STEP 2: Press the RIGHT button to adjust the value. Then
press the LEFT button to confirm the value and proceed to the
weight input screen.
INPUT WEIGHT
The Delta R uses your weight and age to measure calories and
fat burned.
STEP 1: After inputting age (above), the computer will auto-
matically proceed to the weight input screen. The left digit will
flash. Press the RIGHT button to adjust the value. Then press
the LEFT button to advance to the next flashing digit.
STEP 2: Repeat this process until you have entered your cor-
rect weight. Then press the LEFT button to confirm the value
and proceed to the clock mode selection screen.
11:38
43.8
KM/hr
37.238
43.8
KM/hr
ODO
37.238
43.8
KM/hr
DST
52.3
43.8
KM/hr
MXS
42.3
43.8
KM/hr
AVS
9:59:5.9
43.8
KM/hr
TM
156.23
43.8
KM/hr
CAL
213.54
43.8
KM/hr
FAT
1x
70
0
10
20
30
40
50
60
55.9
31.0
KM/hr
AVS
Fig 1
Fig 2
Tire Size Circ.(mm) Tire Size Circ.(mm) Tire Size Circ.(mm)
26x1.5 2030 700x20 2095 700x28 2135
26x1.75 2045 700x23 2110 700x32 2155
26x2.0 2115 700x25 2125 27x11/4 2155

SETTING THE CLOCK
The Delta R is equipped with a digital clock that displays time
of day in a 12 hour or 24 hour format.
STEP 1: After inputting weight (above), the computer will
automatically proceed to the clock mode selection screen.
STEP 2: “24” will flash at the bottom of the display. Press
the RIGHT button to select the 12 hour or 24 hour mode.
Press the LEFT button to confirm your selection and advance
to the hours setting.
STEP 3: Press the RIGHT button (or press and hold) to set
the hours. Press the LEFT button to advance to the minutes
setting.
STEP 4: Press the RIGHT button (or press and hold) to set
the minutes. Once the minutes are set, press the LEFT button
to advance to the maintenance interval selection screen.
SETTING MAINTENANCE REMINDER
The maintenance reminder is intended to remind you to per-
form periodic maintenance at preset mileage intervals. For
example, if you select a maintenance interval of 400 miles (or
kilometers), the maintenance icon will appear when total dis-
tance (ODO) reaches 400, 800, 1200, 1600 miles (or kilome-
ters), and so on. When the wrench icon appears, press the
LEFT button to turn it off until the next maintenance interval is
due.
STEP 1: After setting the clock (above), the computer will
automatically proceed to the maintenance interval selection
screen.
STEP 2: “600” miles (or kilometers) will flash in the display
screen. Press the RIGHT button to select a maintenance inter-
val of 200, 400, 600 or 800 miles (or kilometers).
STEP 3: Press the LEFT button to confirm your selection and
return to the speed and clock display screen.
SETTING THE ODOMETER
The Delta R odometer can be programmed so that cumulative
mileage can be restored after a battery change or transferred
from another computer.
STEP 1: In the ODO display screen, press and hold the LEFT
button for five seconds until the digit at the bottom right of the
screen begins to flash.
STEP 2: Use the RIGHT button to adjust the value. Press the
LEFT button to confirm the value and advance to the next
flashing digit.
STEP 3: Repeat this process until all digits have been set to
the appropriate value.
STEP 4: Once the last digit has been set, press the LEFT but-
ton to return to the ODO display screen.
RESET DISPLAY SCREENS
The DST, AVS and TM display screens are reset simultaneous-
ly. In the DST display screen, press and hold the LEFT button
for three seconds to reset all three display screens to zero.
The MXS, CAL and FAT display screens are each reset sepa-
rately. In each of these display screens, press and hold the
LEFT button for three seconds to reset the display.
To reset all display screens AND reset all programmed set-
tings (including wheel size, age, weight, clock, maintenance
interval and odometer), press and hold both buttons (LEFT
and RIGHT) for three seconds.
INSTALLATION
Since the Delta R is wireless, installation is simple and
straightforward. Begin by attaching the computer mounting
bracket to the handlebar.
BRACKET AND COMPUTER INSTALLATION
STEP 1: Select the proper size mounting ring for your han-
dlebar. Two mounting bracket rings and three rubber shims
are included to accommodate a variety of handlebar diame-
ters. The smaller ring (already fitted to the bracket) fits stan-
dard 25.4mm—26.4mm diameter handlebars. The larger ring
fits 31.8mm oversize bars. If necessary, remove the smaller
ring from the bracket and replace it with the larger ring. See
Figure 3.
STEP 2: Clamp the bracket to the handlebar and tighten in
place. See Figure 3. Do not over-tighten the bracket. The
bracket needs to be tightened only enough to prevent rotation
on the handlebar during normal riding.
STEP 3: Attach the computer to the bracket. Slide the com-
puter into the bracket from front to back. See Figure 3. You
should hear an audible ‘CLICK’ indicating that the unit is
locked firmly in place. Use the two bracket pivot points to
adjust the viewing angle as desired.
STEP 4: To remove the computer from the bracket, press
down on the release tab at the rear of the bracket and slide the
computer head forward.
WHEEL MAGNET AND TRANSMITTER
INSTALLATION
STEP 1: Using the included zip-ties, loosely mount the trans-
mitter (so that you can slide it around) to the leading edge of
the left fork blade with the transmitter battery cap facing up.
See Figure 4. The Delta R wireless transmission range is 24”
(60cm). The transmitter must be mounted no further than 24”
from the receiver (computer head) to properly transmit the
signal.
STEP 2: Attach the wheel magnet loosely to one of the
spokes on the same side of the wheel as the transmitter.
Adjust the position of the magnet and transmitter by sliding
both pieces up or down until the magnet passes the alignment
mark on the transmitter with a clearance of 1-3mm (1mm is
about the thickness of a penny). See Figure 4. If the magnet
and transmitter are not close enough, computer readings will
be inconsistent, erratic or completely absent. Most problems
that occur when installing a new computer are related to mag-
net and sensor alignment and spacing.
STEP 3: Once the transmitter and wheel magnet are aligned
properly, tighten both in place securely.
TEST OF INSTALLATION
Once the installation procedure is complete, test the unit to
make sure everything is adjusted and working properly.
STEP 1: Pick up the front end of the bicycle and spin the
front wheel. The computer should register a speed reading
within 1-2 seconds. If it does not, check the alignment of the
wheel magnet and transmitter, and make sure that the space
between the magnet and transmitter is 3mm or less. Adjust as
necessary and re-test. Note: Wireless cyclocomputers are
occasionally affected by electromagnetic interference.
Common sources of electromagnetic signals include high volt-
age power lines, motor driven equipment and other wireless
devices (such as heart rate monitors). If you experience
unusually high speed readings, check your surroundings for
possible sources of electromagnetic signals and move away
from the source.
Made in China 0405_1
Fig 3
Fig 4