FEATURES 2
GETTING STARTED 3
TAKING AIR SAMPLES 4
THE KEYPAD 5
THE MENU SYSTEM 5
SAMPLE AIR READINGS 6
SETUP 7
MAKING RUN ENTRIES 11
SEA LEVEL ET 11
THROTTLE STOP FACTOR 11
WEATHER ON HOLD 11
VIEWING/DELETING RUNS 11
RUN COMPLETION 13
MAKING PREDICTIONS 13
DOWNLOADING TO A PC 14
SET CLOCK 16
BAD RUNS 16
AUTO POWER OFF 16
BATTERIES 17
OPERATING/STORAGE LIMITS 17
WARRANTY 18
TECHNICAL SUPPORT 18
ABBREVIATIONS 19
GUIDELINES FOR ACCURATE PREDICTIONS 20
APPENDIX 21
1
PerformBJSF FEATURES
• Temperature Readout
• Relative Humidity Readout
• Absolute Barometric Pressure Readout
• Dew Point
• Vapor Pressure
• Air Density Ratio
• Horsepower Correction Factor
• Oxygen Sensor Readout (optional)
• Density Altitude Readout
• Oxygen Altitude Readout
• Remote Paging Capability (optional)
• 400 run data base
• Up to 10 separate data bases
• Sea level ET calculation
• Throttle stop ratio calculation
• ET to DA Ratio
• ET prediction
• Throttle stop prediction
• One run prediction
• Wind effect prediction
• Run completion
• Bad Run Detection
• Data and time stamp in data base
• Weather on Hold
• Manual weather input
• Automatic Last weather sample Hold
• View and delete runs
• 9V battery power
• Downloading Data Analysis software
(optional)
• Battery low indication and power level
• Automatic power off
2
GETTING STARTED
Press “MENU” key to turn unit on. Unit will automatically turn off after
2 minutes if no keys have been pressed.
GREETING MESSAGE
The PerformAIRE
By ALTRONICS
O2 EQUIPPED
VERSION 6.*
"O2 EQUIPPED" will only appear if the unit was purchased with an
oxygen sensor.
DATA BASE #1
ET MODE Selected
Multiple Run Prediction
Wind Prediction Enabled
Second greeting message above will show the following info about the
“Setup” of the unit: Data base, prediction mode, prediction type, and
wind effect.
TAKING AIR SAMPLES
1. Place PerformBJSF in an area that will constantly expose it to the
air you will be racing in (out side of trailer).
2. Do not place your hand or any other object near the air vent or black
probe while PerformBJSF is in use.
3. Keep PerformBJSF out of direct sunlight.
4. Do not place PerformBJSF near soil or grass as it may pick up
additional humidity.
5. Even though the PerformBJSF's sensors can stabilize very quickly,
residual heat left in the enclosure when the PerformBJSF is moved
from one environment to another may take more time to dissipate.
Example: When you arrive at the track and take the PerformBJSF out
of your 70-degree transporting vehicle and put it in the 90 degree outside
air, you must let it sit for fifteen minutes before taking a reading. During
this time the PerformBJSF enclosure and black probe will stabilize
with the environment and allow it to take extremely accurate readings for
the rest of the day. Allow time appropriately for differences in
3
temperature. If the PerformBJSF is OXYGEN SENSOR equipped,
allow twice as much time to stabilize.
UNIT DOES NOT NEED TO HAVE POWER ON IN ORDER TO
STABILIZE!!!!!!!
6. Although the PerformBJSF is reasonably durable, it can be
damaged if dropped or abused. Keep this in consideration when using
and storing the PerformBJSF.
7. For best results only turn PerformBJSF on when taking a reading.
**IMPORTANT**
Units with oxygen sensors only:
When using a unit with an oxygen sensor that is set to Oxygen Altitude
mode, the unit must remain stabile while in use. If movement has
agitated the unit it must remain stable for 15 minutes before taking air
samples. Unit does not need to have power on to stabilize!!!!
******Important******
It often takes a number of trips to the track to acquire the aboverecommended data in order to produce accurate results. Because of this,
we suggest using the following method until enough data has been
acquired.
Gasoline burning engines:
A 200’ rise in DA typically yields a 0.01sec slow down in ET and viceversa for a drop in DA.
Alcohol burning engines:
A 400’ rise in DA typically yields a 0.01sec slow down in ET and viceversa for a drop in DA.
For TS racers:
Typically the TS ratio is 3:1. This means is takes 0.03sec in the timer to
move the car 0.01sec. Use this information with the above DA change to
set up your timer.
4
KEYPAD FUNCTIONS
MENU/ON key - Turns unit ON and allows the unit to leave any current
menu and return to the MAIN menu.
SCROLL key - used to view runs that have been stored in the data base.
CLEAR/OFF key – Turns unit OFF when pressed from MAIN menu and
allows runs to be deleted from the data base and allows the user to
reenter a value if the wrong key was pressed.
ENTER/HOLD key - must be pressed after keying in a value to confirm
the value is correct. When pressed in CURRENT DATA mode the air
sample is held in memory and can be used for data entry later on.
MENUS
MAIN MENU - When unit is turned on the MAIN menu automatically is
displayed after the greeting message. The user can make of the six
following choices at this point:
SAMPLE AIR = 1
SET UP = 2
RUN ENTRY = 3
PREDICT = 4
Hit the “MENU” key again and see:
DOWNLOAD =5
SET CLOCK =6
BAD RUNS =7
AUTO POWER OFF =8
Hit the “MENU” key again and see:
PAGER SETUP =9 *
BATTERY CHECK =0
* Paging Option in no longer available with portable PerformBJSF systems.
Refer to Appendix for MENU chart
5
SAMPLE AIR
By pressing "1" from the MAIN menu the unit displays all the sampled
air parameters and the PREDICTION in the following format:
DATE TIME
TEMP HUMIDITY
PRESSURE OXYGEN (if equipped) / DEW POINT VAPOR PRESSURE
ALTITUDE/CF PREDICTION (ET or TS)
Pressing the “ENTER” key while viewing current data will HOLD the
data to be used for entering runs. The third and fourth line on the display
will alternate from showing pressure and oxygen to dew point and vapor
pressure and Altitude to Correction Factor (CF).
NOTE: Barometric Pressure
The Pressure reading is “Absolute”, which means it will NOT agree with
the weather channel or local forecast. This is due to the fact that the
local forecast is gives a corrected pressure reading that is compensated
back down to sea level. If you were to stand at your local airport and dig
a hole down to sea level the PerformBJSF pressure reading would then
Performeans it8 Tm0 Tc0-Slevelthat the
6
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