TIMEWISE 798A User Manual Download Page 1 | Manualshive

Page: 1 / 121

background image

©

TIMEWISE

32 Old Barn Road Hawthorn Woods, Illinois 60047

(847) 550-5052

Part Number 1001–798A Rev 7.001

All Rights Reserved

TIMEWISE

798A

RALLY

COMPUTER

USER’S MANUAL

TIMEWISE

798A

SPLIT

LAST CAST

RESET

TIME

ODO

∆

AUXILIARY

CLOCK

CALCULATED TIME

Log

SHIFT

FORWARD

PARK

REVERSE

CAST

TRUNCATE

Reset

Intelli-CAST

•

ODOMETER

SPEED

NEXT SPEED

AUXILIARY

ERROR

Clock

Odo Check

Alarm

Odometer

Factor

Preset

*

Odo & Time

Next Speed

Last Split

Adjust

ORM

Transit

Calc Time

*

Shift

–

CAST to load

.10

+

–

Remote Brightness

Brightness

Remote Aux

Odo Input

10.00

+

–

Error Format

.01

+

–

Time Format

Intelli-CAST

1.00

+

–

Input

÷

Ratio

.001

Speed Format

Odo Format

+

–

Set / Sync

To Go

A

↔

B

Calc Speed

Speed

Compute Factor

Print

1
2
3
...
»

Summary of Contents for 798A

Page 1: ...TIME Log SHIFT FORWARD PARK REVERSE CAST TRUNCATE Reset Intelli CAST ODOMETER SPEED NEXT SPEED AUXILIARY ERROR Clock Odo Check Alarm Odometer Factor Preset Odo Time Next Speed Last Split Adjust ORM Tr...

Page 2: ......

Page 3: ...en the 798A entered the idle mode The driver s module always re illuminates at its prior setting Version 1 006 February 11 2000 The power failure and odometer alarm visual notifications showing in the...

Page 4: ...tended by the rallymaster Version 3 000 October 29 2000 Fixed a bug that prevented the factors associated with the inactive odometer input from being corrected during the Compute Factor procedure if a...

Page 5: ...for the remote AUXILIARY display The TIME ODO switch now selects the auxiliary odometer the main odometer or the alarm countdown distance Previously the selections were the auxiliary calculated time...

Page 6: ...e driver s module AUXILIARY display The TIME ODO switch now selects the alarm countdown distance TIME the main odometer or the auxiliary odometer ODO Version 5 009 July 8 2016 Odometer transducer Inpu...

Page 7: ...lthough the standard 798A could be used to determine these timing errors the special features provided by option 3 firmware greatly simplify the process A 798A outfitted with option 3 firmware enables...

Page 8: ...n unit s AUXILIARY display when is selected on the TIME ODO switch if and only if the 798A is split and Next Speed is selected on the rotary switch The Event Timer and Calculated Time Counter With opt...

Page 9: ...dths digits just wait for up to four seconds and the hundredths digit will be briefly shown in the display You can also see the hundredths digit of the SPEED display in the driver s AUXILIARY display...

Page 10: ...Lastly the hundredths digit adjustability also applies to the speed you can load for the Preset function In this case however because the AUXILIARY display has a hundredths digit you can see the extr...

Page 11: ...ffset is being applied to the driver s ERROR display The timing units seconds or hundredths for the offset bias are the same timing units as chosen for the driver s ERROR display After setting an offs...

Page 12: ...her when a pneumatic hose is used at a timing line there is generally a small delay as air compresses within the hose Here again a slightly negative offset is needed Finally even a checkpoint mirror s...

Page 13: ...to 4 units seconds or hundredths the error is displayed with a resolution of only whole units Since the driver s display is not showing tenths of seconds or thousandths of minutes you can get a false...

Page 14: ...bias and split exactly when the error changes from 05 to 06 you will arrive 0 9 early on the time of day clock again exactly what you d expect What is important to note is that regardless of whether t...

Page 15: ...n The preset speed will be shown in the AUXILIARY display Use the toggle switches to adjust the preset speed Once a preset distance has been set you must rotate the rotary switch away from the Preset...

Page 16: ...tion Please take note that after setting predetermined values for use with the original Preset function it is possible to accidentally execute an AutoCAST should the main odometer eventually match the...

Page 17: ...after the AutoCAST is executed you can use the LAST CAST function to observe that the CAST was actually triggered at a distance of 50 000 miles If the rallymaster had in fact stipulated that the CAST...

Page 18: ...SUPPLEMENTAL INFORMATION OPTION 11 iv TIMEWISE 798A This Page Intentionally Left Blank...

Page 19: ...anties and Exclusion of Certain Damages All implied warranties including warranties of merchantability and fitness for a particular purpose are limited in duration to the length of this warranty In no...

Page 20: ...ll one the function of each switch on the 798A how to use the features of the 798A simple troubleshooting and how to prevent problems How to Use This Manual For a brief description of what the 798A do...

Page 21: ...ing Parameters Temporary Recall of Live Parameters while Split Adjusting a Split Parameter Recall of Previous Split Values 24 The Time of Day Clock Setting the Clock Synchronizing the Clock Automatica...

Page 22: ...the Calculated Time Minutes 41 The Average Rally Speed The CAST The Active CAST The Next CAST Changing to a New Active CAST Adjust the Active CAST Executing a Retro CAST Details Details When You Chang...

Page 23: ...ducer Failure Warning Power Failure Warning System Information Internal Battery Back up Display Re initialization Overall System Reset 64 Please Read On SECTION 3 APPLICATIONS 65 Using the 798A 71 Sam...

Page 24: ...tion with automatic correction to the calculated time Post Alignment Optional datalog from 56 most recent Splits and CASTs Optional 01 mph resolution for CASTs Odometer and calculated time truncation...

Page 25: ...efore reverting to 0 000 miles An auxiliary odometer also reads to 999 999 miles These two odometers count up or down in unison or they may be frozen parked at their current values The odometers may b...

Page 26: ...continue to update whether or not the main computer is split After switching to a new CAST you may subsequently change the CAST value to correct an erroneous entry Two CAST displays are provided one...

Page 27: ...of the dashboard Drill shallow pilot holes for the same reason If you examine the dashboard you may find that you can hide the mounting holes along the edge of decorative trim or camouflage them with...

Page 28: ...hes it to the 798A directly over a blower motor that may be located within the dashboard Blower motors radiate incredible amounts of electrical interference that can enter the cable and cause a malfun...

Page 29: ...red wire to a circuit already protected by a fuse keep in mind that a problem elsewhere in the vehicle may open that fuse and disable the 798A Also make certain the vehicle fuse is free of corrosion...

Page 30: ...tive in attenuating RFI they must be located next to the 798A See Appendix B for more information Most 798As do not have ferrite beads ODOMETER TRANSDUCERS The 798A will operate from a wide variety of...

Page 31: ...ioned before they can be used by the 798A To do so the 798A uses a built in signal conditioner and pulse divider the pulse divider is for ODOMETER INPUT 2 only that will buffer and reshape high speed...

Page 32: ...eel slippage is accuracy improved Photoelectric Transducers Photoelectric transducers are generally attached to the speedometer cable mechanism of your vehicle Alternatively some rallyists install a m...

Page 33: ...nsducers are by far the most popular They have been installed on virtually every type of vehicle TRANSDUCER INSTALLATION Anyone with average mechanical abilities can install an odometer transducer Hou...

Page 34: ...ransducer is 2 long and 0 375 in diameter The body of the transducer is threaded along its entire length allowing you to adjust its axial position after installation When installing the transducer pos...

Page 35: ...ransmission and the drive shaft will twist and vibrate as the engine applies torque to the drive train When that happens the gap between the transducer and magnet will change There may be enough movem...

Page 36: ...bolts you remove The bolt must be re tightened to the correct torque Also the added thickness of the bracket may require the use of a longer bolt Always replace a loosened expansion bolt with a new on...

Page 37: ...tall magnets with a specific pole facing the transducer Timewise does suggest that you consider placing the South pole toward the transducer Doing so assures you that should you subsequently install a...

Page 38: ...tating member possibly damaging the transducer and or magnet If you have epoxied the magnet to a wheel that was removed from the vehicle replace the wheel only after the epoxy has cured This will prev...

Page 39: ...hen timing in seconds substitute seconds in any reference to hundredths of a minute Similarly you may measure distance in miles or kilometers If you use kilometers as your unit of measure for distance...

Page 40: ...ch activation of the switch If held in the up or down position for approximately one second the parameter will change 12 5 times per second The 10 00 switch increases or decreases the selected paramet...

Page 41: ...tance internally When you de select SPLIT the displays automatically update to current course values It will be as if you had never entered the split mode at all NOTE If you have the rotary switch in...

Page 42: ...period Actually when the clock is initially calibrated by Timewise the oscillator is set to an accuracy of 0 01 minute after 48 hours If you participate in a rally lasting several days Timewise sugge...

Page 43: ...e Continue holding the SHIFT toggle handle down The clock setting functions are identified in italics Set Sync below the rotary switch Clock label Note If you do not activate RESET prior to selecting...

Page 44: ...ate and hold RESET to select the clock Sync function The clock will be live and the AUXILIARY display will show the word SYnc 3 Actuate any switch to advance or retard the clock Repeat as needed 4 Rel...

Page 45: ...king will not occur after the thousand mile point Blanking leading zeros at each thousand mile point has been disabled as there would be a sudden major change in the appearance of the display potentia...

Page 46: ...t to exit forward feature turn on the 798A while actuating both SHIFT and the 001 position of the 001 switch Repeat to return to the standard mode Note When the shift to exit forward feature is enable...

Page 47: ...ain odometer Use this function to align the main odometer to an official mileage e g an outmarker or other mileaged reference Important The calculated time described in detail later will not change wh...

Page 48: ...ust the auxiliary odometer only when the auxiliary odometer is visible The 798A disables adjustments to the main odometer for about one second following an adjustment to the auxiliary odometer This pr...

Page 49: ...continues to be depressed Activating TRUNCATE does not affect the auxiliary odometer Resetting the Main Odometer The main odometer can be reset to exactly 0 00000000 by actuating the SHIFT switch and...

Page 50: ...its long By using an appropriate factor the 798A will correctly measure distance as it senses pulses To understand how the odometer factor is used a brief description of the distant measure ment metho...

Page 51: ...or The procedure described below is used to compute a unique base factor for your installation When your base factor has been determined enter that value into the 798A A correct base factor will make...

Page 52: ...meter signal source the CLOCK display will show xxx 1 with xxx indicating the current divide by setting for odometer input 2 To select a different divide by ratio start by displaying its current setti...

Page 53: ...ctly should you accidentally switch factors or inputs assuming you install the odometer signal duplicator jumper plug mentioned below If you had valid base values for the other factors in the 798A you...

Page 54: ...imarily to give rapid warning should a magnet be dislodged from a wheel or when a transducer fails completely The transducer failure warning system is not intended to warn you of random missed pulses...

Page 55: ...o note when using the automatic factor calculation First the calculated time remains unchanged following an automatic factor calculation Do not assume the calculated time is corrected following the pr...

Page 56: ...you turn the rotary switch away from the Odo Check position Record the sample factor as necessary before moving the rotary switch You can repeat the sample factor calculation without changing the odo...

Page 57: ...is necessary to correct the factor Remember decreasing the factor makes the 798A measure fewer miles Thus reduce the factor 1 of 065000 or 650 counts The correct factor is 064350 You must also correc...

Page 58: ...age speeds given by the rallymaster Since the calculated time is a computed value rather than a stopwatch or a clock the value displayed will not necessarily advance at a steady pace Instead the calcu...

Page 59: ...e or whole seconds IMPORTANT As long as TRUNCATE is selected the 798A will not accumulate any calculated time nor will distance accumulate in the main odometer Truncating the Calculated Time Minutes A...

Page 60: ...D display The 798A will immediately begin using the new CAST value as it computes the calculated time After activating CAST the value in the NEXT SPEED display is automatically set to the previous CAS...

Page 61: ...n best understood by example Here s an intriguing application that utilizes the Retro CAST feature Suppose you re driving at an assigned CAST of 40 and the current instruction reads CAST 30 at last si...

Page 62: ...in part to Adjust ORM adjustments made in the active speed section If you wish to prevent course adjustments from becoming part of a Retro CAST correction use the Odo Time function instead of the Adju...

Page 63: ...ment a few feet before the reference and you believe the rallymaster would have used that exact value actuate the CAST switch immediately Note that many rallymasters effectively do this when they reco...

Page 64: ...ithin the intended hundredth of a mile you make the CAST changes However it must be pointed out that a disadvantage of using this feature is that you must execute all CAST changes within the intended...

Page 65: ...ement and Calculated Time at the Last CAST Post Alignment A very remarkable feature of the 798A is that you can retroactively correct the execution point ORM distance for the last CAST This capability...

Page 66: ...correct you d need to ascertain that later Automatic ORM Correction when making a LAST CAST Adjustment Option 10 As of version 6 000 firmware a standard feature of the 798A can be used to automatical...

Page 67: ...uring the Retro CAST recalculation To explain further here s a complete description of the Odo Time function with additional clarification on how it differs from the Adjust ORM function Odo Time Adjus...

Page 68: ...ed using the active CAST Similarly if you use the Odo Time function you will correct the calculated time using the calculation speed showing in the SPEED display And since the calculation speed for th...

Page 69: ...herefore if you anticipate employing the Retro CAST function and you want an automatic calculated time adjustment to remain unchanged after the Retro CAST use the Odo Time function when making the com...

Page 70: ...g this information you can precisely align the 798A to the rallymaster s values To do so drive to the identified landmark and enter the three official values into the appropriate displays Acknowledgin...

Page 71: ...ored if a CAST is executed while the 798A is split As each data set is collected it is stored in a cyclical memory stack This means that after all 56 storage locations are filled subsequent splits or...

Page 72: ...nformation in the displays will change to the new split data As a second example if you are looking at the second most recent datalog set and execute a split the displays will update to show data from...

Page 73: ...stance while you drive As is the case for adjusting other split parameters the 798A compensates for the distance you drive and sets the actual alarm distance accordingly An odometer alarm beeper will...

Page 74: ...es unless the 798A was split The Auxiliary Odometer Selecting ODO on the TIME ODO switch lets you view an Auxiliary Odometer This odometer is completely independent of the main odometer When visible i...

Page 75: ...oll over to 6 00 00 0 The delta counters can be independently reset to zero The odometer delta counter is reset by selecting RESET on the RESET SHIFT switch when Odometer or Adjust ORM is selected on...

Page 76: ...d designation Error Format Each time you activate Error Format the error will change from one format to another The counting format and resolution selected for the ERROR display can be different from...

Page 77: ...at a resolution of units in the main displays the CLOCK and CALCULATED TIME will show 12 00 06 and 12 00 10 respectively Using the information shown in these displays you would calculate an apparent...

Page 78: ...u drive with the ERROR showing an exact 0 00 your timing and location on the course will be correct upon each clock tick Unfortunately however all time and location combinations have limited resolutio...

Page 79: ...turned to the Odo Time function and the Calc Speed is adjusted Manual select t d o The TIME ODO switch next to the main computer s AUXILIARY display selects which parameter will be shown on the drive...

Page 80: ...used Although you can recover from this mistake you can do so only if you take notice of it It s better to make the correct adjustment the first time Because of this potential for error the 798A is p...

Page 81: ...power to the 798A When warned of a power problem turn the rotary switch or activate SHIFT to dismiss the warning The warning will be displayed again if another partial power failure occurs System Info...

Page 82: ...itialize the displays Re initializing the LED circuitry does not affect the numerical values of the data Overall System Reset You can reset the 798A to factory default conditions if you wish To do so...

Page 83: ...or adjust the active CAST to a speed of 0 0 thereby entering the transit mode Even if the rallymaster gives a CAST to use during the odometer check rather than a transit time you can often consider th...

Page 84: ...m mileage and times for the just completed leg Then exit the split mode 3 Drive to the outmarker 4 Reset the main odometer to 0 000 00000 miles Actuate SHIFT and then concurrently actuate TRUNCATE to...

Page 85: ...er 8 When the ERROR display nears 0 00 proceed along the course and Mileaged Outmarkers Are Not Provided When mileage resets to 0 00 at a checkpoint in line and the rallymaster does not provide a mile...

Page 86: ...an record a calculated time rather than your actual time of arrival As for all legs of a rally the 798A calculates the DIYC travel time using the distance you drive and the CASTs you enter Since the c...

Page 87: ...the odometer and enter the first CAST for the leg into the NEXT SPEED display Then CAST and add the speed section mileage to the odometer using the Adjust ORM function Then set the next speed into th...

Page 88: ...tment amount 3 Release the LAST CAST toggle switch 4 Select Adjust ORM and adjust the odometer by the amount noted in step 2 If you made a positive adjustment to the last cast odometer measurement add...

Page 89: ...e execute the route instruction only at that mileage Main Road Rules Left at tee Onto rule re enter a road prior to the next route instruction etc etc etc Straight as possible Route Instructions 0 00...

Page 90: ...e CAST to change the CAST to 30 Preset the next CAST 36 into the NEXT SPEED display Suddenly the road surface turns to gravel Actuate CAST immediately and adjust the active CAST to 25 from the value 3...

Page 91: ...ST 40 the 798A will temporarily ignore the extra 0 003 mile re computing the calculated time as necessary The unused 0 003 mile is then included in the CAST 40 section Alternatively you can treat the...

Page 92: ...ning right at Smith 1 88 15 Begin transit zone at RXR Take 7 42 minutes to reach route instruction 16 4 44 16 End transit zone at STOP AHEAD CAST 33 This is a standard transit zone Execute Transit or...

Page 93: ...d with which you are most comfortable Your next step is to run an actual rally But don t expect to remember all the features of the 798A the first time you use it There is always a learning curve asso...

Page 94: ...APPLICATIONS Section 3 76 TIMEWISE 798A This page intentionally left blank...

Page 95: ...e SYNC input inside the 798A The sleeve contact is connected directly to the chassis of the 798A and then to vehicle ground via the black negative power wire Please Note To properly use the remote inp...

Page 96: ...rse mileage Activating the remote SPLIT allows you to confirm time and mileage at the execution point of an instruction while simultaneously resetting the auxiliary odometer Note The remote SPLIT cann...

Page 97: ...carries the same warning Damage to the 798A or the accessory may occur as voltages are randomly applied to internal components The 798A and its accessories are engineered with protection against such...

Page 98: ...elow floor mats or carpeting can be accidentally pulled Some rallyist experience trouble only when starting their vehicle This is often caused by an ignition switch that momentarily breaks contact wit...

Page 99: ...seats air conditioners electronic fuel injection systems and microprocessor controlled instrumentation generate electrical noise that pollutes the 12 volt power system of a vehicle Reducing Electrical...

Page 100: ...Spark plugs and spark plug caps with suppressor resistors also reduce ignition noise Don t be misled by an apparent lack of trouble when using solid wires Ignition noise can be very elusive occurring...

Page 101: ...t into the 798A should stop operation before the instrument is damaged If the 798A is exposed to temperatures over 250 F even momentarily the operating firmware will be permanently altered To prevent...

Page 102: ...tered in a vehicle low temperature operation is limited by the lithium battery s chemistry Lithium battery chemistry can withstand short term exposure to 40 C 40 F and a continuous low temperature of...

Page 103: ...r plug Thin insulation 009 thick covering 26 or 28 gauge wire is required Contact Assignments Pin assignments for the odometer transducer input modular jacks are listed below Pin 1 is on the left when...

Page 104: ...vider t HL High Level Valid 0 99 millisec t LL Low Level Valid 10 microsec V IH Input High Level 4 5 5 14 volts 5 volts typ V IL Input Low Level 0 5 0 1 volt t LL V IH V IL t CY t HL IMPORTANT The 798...

Page 105: ...facturer electronic speedometer signal be aware that some vehicle systems output pulses at rates faster than 1000 Hertz even at 30 mph Others may have slower pulse rates but will fail to work correctl...

Page 106: ...e Note When using an OEM electronic speedometer system as a transducer input signal the speedometer in the driver s module may not work correctly even though the 798A functions properly in all other a...

Page 107: ...high speed clock to the remote PARK port All the LED segments will turn on to their brightest setting 3 Let the 798A warm up for at least 30 minutes 4 Carefully insert a small non conductive flat blad...

Page 108: ...tch mechanism Do not open the 798A to clean inside You will void the warranty If your 798A needs to be cleaned internally return it to Timewise for a thorough checkup Timewise will clean and calibrate...

Page 109: ...r plus shield 28 gauge w 8 contact unkeyed modular plug on one end shield drain wire on pin 1 substitute length in feet for xx Also available without modular plug Modular jack coupler for connecting t...

Page 110: ...9 miles km Delta Counters Amount of Change Mileage 99 999 to 999 999 miles km Time 59 999 59 9 to 5 59 999 59 9 Error on driver s module 9 999 59 9 to 59 999 59 9 or 40 001 00 1 to 99 999 59 9 then 00...

Page 111: ...1 93548 1 92926 1 92308 1 91693 1 91083 1 90476 1 89873 1 89274 1 88679 1 88088 31 32 1 87500 1 86916 1 86335 1 85759 1 85185 1 84615 1 84049 1 83486 1 82927 1 82371 32 33 1 81818 1 81269 1 80723 1 80...

Page 112: ...0 78947 0 78844 0 78740 0 78637 0 78534 0 78431 0 78329 0 78227 0 78125 0 78023 76 77 0 77922 0 77821 0 77720 0 77620 0 77519 0 77419 0 77320 0 77220 0 77121 0 77022 77 78 0 76923 0 76825 0 76726 0 76...

Page 113: ...everse mode regardless of the FORWARD PARK REVERSE switch Remotely activating CAST is disabled Option 3 Add an event timer and the ability to instantly reset the error and odometer The error can also...

Page 114: ...tch Permanently View 001 Miles Select special functions actuate the 001 Odo Format switch Temporarily View 001 Miles Select Adjust ORM Change Speed Format Select special functions depress and hold SHI...

Page 115: ...to Adjust ORM Select LAST CAST adjust ODOMETER display If the ORM is not to be corrected do not select Adjust ORM while making the adjustment Enter Transit Zone Depress and hold SHIFT actuate CAST Ad...

Page 116: ...press LAST CAST To re enable select FORWARD or depress LAST CAST again Adjust the beep length for the Park Reverse alarm Select Alarm actuate RESET on RESET SHIFT switch use the 001 switch to change t...

Page 117: ...4 Beeper park and reverse warning 28 63 adjusting the tone length 28 63 98 temporarily disabling 28 63 98 split warning adjusting the tone length 23 63 upon activating CAST 42 63 Blinking displays 62...

Page 118: ...display 23 56 58 Error Format function 58 Error offset enabling 61 98 Factor 32 automatic calculation 36 sample value display result only 38 98 determining a base factor 33 manual calculation 35 selec...

Page 119: ...der 13 34 63 87 Odometer input specifications 85 Odometer inputs 78 selecting the active input 32 Odometers main and auxiliary adjusting 29 resetting 31 resolution 29 Odometers main and auxiliary 27 O...

Page 120: ...warning 25 Select the active odometer input 32 Semi Intelli CAST function 46 62 Sender or Sensor See Transducers Serial number See System information Set Sync function 25 26 Setting High Resolution CA...

Page 121: ...ion 64 98 overheating 83 transducer 79 TRUNCATE function 30 41 enabling a one second delay 30 98 Truncating calculated time 31 41 calculated time minutes 41 main odometer 30 41 Warnings blinking CLOCK...

Reviews:

No comments

Related manuals for 798A

Brand: Kawai Pages: 142

Brand: Kawai Pages: 10

Brand: C-LOGIC Pages: 4

Brand: Bacharach Pages: 19

Brand: Keithley Pages: 55

Brand: Radio Shack Pages: 44

Brand: Radiodetection Pages: 2

Pasport PS-2138

Brand: Pasco Scientific Pages: 26

MTEK6000 Series

Brand: Metretek Pages: 81

Brand: Velleman Pages: 107

Brand: Sper scientific Pages: 56

Brand: Ratek Pages: 24

Brand: Oldham Pages: 106

Trimble Ranger 3

Brand: Badger Meter Pages: 20

Brand: A&D Pages: 38

Brand: Hanna Instruments Pages: 2

Brand: Vogel Pages: 4

K-PATENTS PR-23 AX Series

Brand: Vaisala Pages: 246

Brands by name

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Popular brands

Load more brands