Dynatest 1295 User manual

Dynatest 1295 Version 1.07i Sep 2017
1295 PAVEMENT FRICTION TESTER
OPERATION MANUAL
Version 1.07
Dynatest North America, Inc.
11415 Old Roswell Road Suite 100
Alpharetta, Georgia USA
PHONE: [phone]
FAX: [phone]
E-mail: [e-mail]
Dynatest®

Dynatest 1295 Version 1.07 ii Sep 2017
TABLE OF CONTENTS
SECTION DESCRIPTION PAGE
Section 1 Introduction
1.1 Introduction .....................................................................................1
1.2 Model 1295 System Description.......................................................1
1.3 Principles of Operation.....................................................................1
1.4 Daily Start-up Procedures................................................................3
1.5 Model 1295 Electrical Systems Components....................................4
1.5.1 Control Console ................................................................4, 5, 6
1.5.2 Portable Computer ............................................................7
1.5.3 Embedded Data Acquisition System .................................7
1.5.4 Operator Pendant Push Button Control .............................7
1.5.5 Printer................................................................................7
1.5.6 Vehicle Speed Display Meter.............................................7
1.6 Tow Vehicle Rear Bed Components.................................................8
1.6.1 250/300 Gallon Baffled Water Tank ...................................9
1.6.2 12 Volt DC Battery ............................................................9
1.6.3 750 Watt Power Inverter ....................................................9
1.6.4 Inverter Bracket..................................................................9
1.6.5 12 Volt DC Air Compressor................................................9
1.6.6 Air Preparation Unit ...........................................................9
1.6.7 External Retractable AC Power Cord.................................9
1.6.8 Four-Way AC Outlet Box....................................................9
1.7 Tow Vehicle Underside.....................................................................10
1.7.1 Positive Displacement Water Pump...................................10
1.7.2 Water Tank Dump Valve ...................................................10
1.8 Tow Vehicle Rear Bumper ...............................................................11
1.8.1 Continuously Adjustable Ball Hitch.....................................11
1.8.2 Water Hose Quick Disconnect ...........................................11
1.8.3 Signal Cable ......................................................................12
1.8.4 Power Cable .....................................................................12
1.8.5 Air Hose Quick Disconnect ................................................12
1.9 Two Wheel Trailer Components.......................................................13
1.9.1 Single/Dual Model 1270 Two-Axis Force Transducer(s).....14
1.9.2 Digital Encoders ................................................................14
1.9.3 Laminar Flow Water Nozzle(s)...........................................14
1.9.4 Power Disc Brakes.............................................................14
1.9.5 Brake Actuator Units..........................................................14
1.9.6 Test Brake Pressure Regulator..........................................14
1.9.7 Electric Lift Jacks...............................................................15
1.9.8 Electric Lift Jack Raise/Lower Switch.................................15
1.9.9 Rear Trailer LED Lights......................................................15
1.9.10 Air Shocks..........................................................................15
Section 2 Calibration
2.1 Calibration menu..............................................................................16
2.2 Force Transducer Calibration...........................................................17
2.2.1 How to perform the Daily Force Transducer(s) Calibration ....17

Dynatest 1295 Version 1.07 iii Sep 2017
TABLE OF CONTENTS
SECTION DESCRIPTION PAGE
Section 2 2.2.2 Editing the Transducer Platform Calibration Values...............18
2.2.3 The Two types of Force transducer(s) Calibrations................18
2.2.4 Understanding How Friction is Calculated .............................18
2.2.5 How often Should the Force Transducer(s) be Calibrated .....19
2.2.6 Description of All Force calibration Fields..............................19
2.2.6.1 View.........................................................................19
2.2.6.1.1 Un-calibrated ..........................................19
2.2.6.1.2 Calibrated ...............................................19
2.2.6.2 Calibrated Values ....................................................19
2.2.6.2.1 Traction Calibration.................................19
2.2.6.2.2 Load Calibration......................................19
2.2.6.2.3 Trailer Weight..........................................19
2.2.6.2.4 Traction Gain..........................................20
2.2.6.2.5 Load Gain...............................................20
2.2.6.2.6 Traction Offset ........................................20
2.2.6.2.7 Load Offset.............................................20
2.2.6.3 Calibration Resistors................................................20
2.2.6.4 Calibration Status ....................................................20
2.2.6.5 Calibrate Button.......................................................20
2.3 Distance and Velocity Calibration.....................................................21
2.3.1 How to Perform Automatic Distance and Speed Calibration 21
2.3.2 How to Manually Enter a Distance & Speed Calibration Value22
2.3.3 How Often Should the Distance & Speed be Calibrated.........22
2.3.4 What Happens if the Distance & Speed Values are Incorrect.22
2.3.5 How Does Distance and Speed Calibration Function .............22
2.3.6 Description of the Distance Calibration Fields ........................23
2.3.6.1 Distance Calibration Length......................................23
2.3.6.2 Right Wheel Encoder Calibration Value....................23
2.3.6.3 Left Wheel Encoder Calibration Value ......................23
2.3.6.4 Vehicle Encoder Calibration Value...........................23
2.3.6.5 Calibration Status Box..............................................23
2.3.6.6 Calibration Button.....................................................24
2.3.6.7 Distance Traveled.....................................................24
2.3.6.8 Left Encoder Count...................................................24
2.3.6.9 Right Encoder Count ................................................24
2.3.6.10 Vehicle Encoder Count.............................................24
2.3.6.11 Left Calibration Value ...............................................24
2.3.6.12 Right Calibration Value.............................................24
2.3.6.13 Vehicle Calibration Value..........................................24
2.3.6.14 Last Calibration Value...............................................24
2.3.6.15 Left Timer Count.......................................................24
2.3.6.16 Right Timer Count.....................................................25
2.3.6.17 Vehicle Timer............................................................25
2.3.6.18 Left Wheel Speed.....................................................25
2.3.6.19 Right Wheel Speed...................................................25
2.3.6.20 Vehicle Speed ..........................................................25

Dynatest 1295 Version 1.07 iv Sep 2017
TABLE OF CONTENTS
SECTION DESCRIPTION PAGE
Section 2 2.4 Temperature Sensor Calibration .......................................................26
2.4.1 Temperature Sensor Calibration..........................................26
2.4.1.1 Air Temperature................................................26
2.4.1.1.1 Gain.............................................26
2.4.1.1.2 Offset...........................................27
2.4.1.2 Surface Temperature.........................................27
2.4.1.2.1 Gain.............................................27
2.4.1.2.2 Offset ...........................................27
2.4.1.3 Tire Temperature...............................................27
2.4.1.3.1 Gain.............................................27
2.4.1.3.2 Offset ...........................................27
2.5 Flow and Level Sensor Calibration....................................................28
2.5.1 Flow Meter and Sensor Calibration......................................28
2.5.1.1 Flow Meter 1......................................................28
2.5.1.1.1 Gain.............................................28
2.5.1.1.2 Offset...........................................28
2.5.1.2 Flow Meter 2......................................................28
2.5.1.2.1 Gain.............................................28
2.5.1.2.2 Offset ...........................................29
2.5.1.3 Water Tank Sensor............................................29
2.5.1.3.1 Gain.............................................29
2.5.1.3.2 Offset...........................................29
2.6.1 How to Use the Meter and DAC Calibration ...................................30
2.6.2 Meter DAC Field Descriptions .............................................31
2.6.2.1 DAC 1 –Speed DVM........................................31
2.5.2.1.1 Gain.............................................31
2.5.2.1.2 Offset...........................................31
2.6.2.2 DAC 2 –Left Load DVM ...................................31
2.5.2.2.1 Gain.............................................31
2.5.2.2.2 Offset...........................................31
2.6.2.3 DAC 3 –Right Load DVM.................................31
2.5.2.3.1 Gain.............................................31
2.5.2.3.2 Offset...........................................31
Section 3 Setup
3.1 Initial Setup of the Tow Vehicle and Trailer.......................................32
3.2 Initial Setup of the Computer For Testing .........................................33
3.3 General Software Organization ........................................................34
3.4 Software Setup Process Outline.......................................................36

Dynatest 1295 Version 1.07 v Sep 2017
TABLE OF CONTENTS
SECTION DESCRIPTION PAGE
Section 4 Operation
4.1 Test Information Menu......................................................................37
4.1.1 Editing Information.................................................................38
4.1.2 Loading Default .....................................................................38
4.1.3 Recalling a Template.............................................................38
4.2 Settings............................................................................................39
4.2.1 Control Parameter Overview.................................................40
4.2.1.1 Test Type........................................................................40
4.2.1.1.1 Standard ...........................................................40
4.2.1.1.2 Chirp .................................................................40
4.2.1.1.3 Target Speed ....................................................40
4.2.1.1.4 Speed Range....................................................40
4.2.1.1.5 Test Suspension Speed ....................................40
4.2.1.2 Test Cycle Sequence......................................................40
4.2.1.2.1 Manual..............................................................41
4.2.1.2.2 Auto ..................................................................41
4.2.1.3 Test Wheel Sequence ....................................................41
4.2.1.3.1 Left....................................................................41
4.2.1.3.2 Right..................................................................41
4.2.1.3.3 Alternate (L-R)...................................................41
4.2.1.3.4 Alternate (R-L)....................................................41
4.2.1.4 Test Start.......................................................................42
4.2.1.4.1 Start Test by Pendant at DMI Start....................42
4.2.1.4.2 Start Test by Pendant after DMI........................42
4.2.1.4.3 Start Test on Distance From DMI ......................42
4.2.1.4.4 Auto Test Start Distance....................................42
4.2.1.5 Test Stop.......................................................................42
4.2.1.5.1 Pendant.............................................................42
4.2.1.5.2 Distance............................................................42
4.2.1.6 Test Time Parameters ...................................................43
4.2.1.6.1 Time parameter 1..............................................43
4.2.1.6.2 Time Parameter 2..............................................43
4.2.1.6.3 Time Parameter 3..............................................43
4.2.1.6.4 Time Parameter 4..............................................43
4.2.1.6.5 Time Parameter 5..............................................43
4.2.1.7 DMI –Distance Measuring Instrument ...........................43
4.2.1.7.1 DMI (Units).........................................43
4.2.1.7.2 DMI Starting Distance.........................43
4.2.1.7.3 Count UP or Down..............................43
4.2.1.8 Miscellaneous...............................................................
4.2.1.8.1 System Units..............................................................44
4.2.1.8.1.1 US/English .....................................................44
4.2.1.8.1.2 Metric.............................................................44
4.2.1.9 Test Watering ................................................................44
4.2.1.9.1 Wet ...................................................................44
4.2.1.9.2 Dry....................................................................44
4.2.1.9.3 Pre-wet..............................................................44

Dynatest 1295 Version 1.07 vi Sep 2017
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SECTION DESCRIPTION PAGE
Section 4 4.2.1.10 Data Average Filter..............................................44
4.2.1.11 Display Settings…………………………………….45
4.2.1.11.1 Speed...............................................45
4.2.1.11.2 DMI...................................................45
4.2.1.11.3 SN....................................................45
4.2.1.11.4 SN Display Value..............................45
4.2.1.12 Cycle Options......................................................45
4.2.1.12.1 Water Control Options......................45
4.2.1.12.2 Nozzle control Options......................45
4.2.1.12.3 Air Compressor Options ...................45
4.2.1.13 GPS Settings.......................................................45
4.2.1.13.1 GPS Bearing ....................................45
4.2.1.13.2 GPS Coordinate display ...................46
4.2.1.14 ROW Camera Settings........................................46
4.2.1.14.1 Mounted upside down.......................46
4.2.1.14.2 Image Inspector................................46
4.2.1.14.3 Image Inspector Duration..................46
4.2.1.15 Vehicle Dashboard Display Settings....................46
4.3.1 Trend Graph Description....................................................47
4.3.2.1 Trend Chart Field Definitions ..........................................48
4.3.2.1 SN Interval –Friction Trend Chart .......................48
4.3.2.1.1 SN Average .......................................48
4.3.2.1.2 SN Max .............................................48
4.3.2.1.3 SN Min ..............................................48
4.3.2.1.4 Y-Scale Min .......................................48
4.3.2.1.5 Y-Scale Max ......................................48
4.3.2.1.6 X-Scale .............................................48

Dynatest 1295 Version 1.07 vii Sep 2017
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SECTION DESCRIPTION PAGE
Section 4 4.3.2.2 SN Interval –Traction Force Trend Chart .............49
4.3.2.2.1 Traction Average ...............................49
4.3.2.2.2 Traction Max .....................................49
4.3.2.2.3 Traction Min ......................................49
4.3.2.2.4 Y-Scale Min .......................................49
4.3.2.2.5 Y-Scale Max ......................................49
4.3.2.2.6 X-Scale .............................................49
4.3.2.2.7 Auto Y-Scale .....................................49
4.3.2.2.8 Manual Y-Scale..................................49
4.3.2.3 SN Interval –Load Force Trend Chart ................49
4.3.2.3.1 Load Force Average ..........................49
4.3.2.3.2 Load Force Max ................................50
4.3.2.3.3 Load Force Min .................................50
4.3.2.3.4 Y-Scale Min .......................................50
4.3.2.3.5 Y-Scale Max.......................................50
4.3.2.3.6 X-Scale .............................................50
4.3.2.3.7 Auto Y-Scale .....................................50
4.3.2.3.8 Manual Y-Scale .................................50
4.3.2.4 SN Interval –Speed Trend Chart ........................50
4.3.2.4.1 Vehicle Speed Average .....................50
4.3.2.4.2 Vehicle Speed Max ...........................50
4.3.2.4.3 Vehicle Speed Min ............................50
4.3.2.4.4 Y-Scale Min .......................................50
4.3.2.4.5 Y-Scale Max.......................................50
4.3.2.4.6 X-Scale .............................................51
4.3.2.4.7 Auto Y-Scale .....................................51
4.3.2.4.8 Manual Y-Scale .................................51
4.3.2.5 SN Interval –Flow Trend Chart ...........................51
4.3.2.5.1 Flow Average ....................................51
4.3.2.5.2 Flow Max ...........................................51
4.3.2.5.3 Flow Speed Min .................................51
4.3.2.5.4 Y-Scale Min .......................................51
4.3.2.5.5 Y-Scale Max.......................................51
4.3.2.5.6 X-Scale .............................................51
4.3.2.5.7 Auto Y-Scale .....................................51
4.3.2.5.8 Manual Y-Scale .................................51
4.3.2.6 SN Interval –Standard Deviation Trend Chart ....52
4.3.2.6.1 Friction SN Standard Deviation .........52
4.3.2.6.2 Traction Force Standard Deviation ....52
4.3.2.6.3 Load Force Standard Deviation .........52
4.3.2.6.4 Vehicle Speed Standard Deviation ....52
4.3.2.6.5 Flow Rate Standard Deviation ...........52
4.3.2.6.6 Y-Scale Min ......................................52
4.3.2.6.7 Y-Scale Max.......................................52
4.3.2.6.8 X-Scale .............................................52
4.3.2.6.9 Auto Y-Scale .....................................52

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SECTION DESCRIPTION PAGE
Section 4 4.3.2.6.10 Manual Y-Scale...................................52
4.3.2.7 Locking Interval –Friction Trend Chart ...............53
4.3.2.7.1 SN at Peak ........................................53
4.3.2.7.2 SN Max .............................................53
4.3.2.7.3 SN Min ..............................................53
4.3.2.7.4 Y-Scale Min .......................................53
4.3.2.7.5 Y-Scale Max.......................................53
4.3.2.7.6 X-Scale .............................................53
4.3.2.7.7 Auto Y-Scale .....................................53
4.3.2.7.8 Manual Y-Scale .................................53
4.3.2.8 Locking Interval –Traction Trend Chart ..............53
4.3.2.8.1 Traction at Peak ................................53
4.3.2.8.2 Traction Max .....................................53
4.3.2.8.3 Traction Min ......................................53
4.3.2.8.4 Y-Scale Min .......................................54
4.3.2.8.5 Y-Scale Max.......................................54
4.3.2.8.6 X-Scale .............................................54
4.3.2.8.7 Auto Y-Scale .....................................54
4.3.2.8.8 Manual Y-Scale .................................54
4.3.2.9 Locking Interval –Load Trend Chart ...................54
4.3.2.9.1 Load Force Average ..........................54
4.3.2.9.2 Load Force Max ................................54
4.3.2.9.3 Load Force Min .................................54
4.3.2.9.4 Load Force @ Peak ..........................54
4.3.2.9.5 Y-Scale Min........................................54
4.3.2.9.6 Y-Scale Max.......................................54
4.3.2.9.7 X-Scale .............................................55
4.3.2.9.8 Auto Y-Scale .....................................55
4.3.2.9.9 Manual Y-Scale .................................55
4.3.2.10 Locking Interval –Speed Trend Chart ................55
4.3.2.10.1 Vehicle Speed Average....................55
4.3.2.10.2 Vehicle Speed Max .........................55
4.3.2.10.3 Vehicle Speed Min ..........................55
4.3.2.10.4 Vehicle Speed @ Peak ....................55
4.3.2.10.5 Wheel Speed @ Peak .....................55
4.3.2.10.6 Y-Scale Min .....................................55
4.3.2.10.7 Y-Scale Max.....................................55
4.3.2.10.8 X-Scale ............................................55
4.3.2.10.9 Auto Y-Scale ...................................56
4.3.2.10.10 Manual Y-Scale .............................56
4.3.2.11 Locking Interval –Flow Rate Trend Chart ...........56
4.3.2.11.1 Flow Rate Average...........................56
4.3.2.11.2 Flow Rate Max ................................56
4.3.2.11.3 Flow Rate Min .................................56
4.3.2.11.4 Flow Rate Peak ...............................56

Dynatest 1295 Version 1.07 ix Sep 2017
TABLE OF CONTENTS
SECTION DESCRIPTION PAGE
Section 4 4.3.2.11.5 Y-Scale Min ................................56
4.3.2.11.6 Y-Scale Max.....................................56
4.3.2.11.7 X-Scale ...........................................56
4.3.2.11.8 Auto Y-Scale ...................................56
4.3.2.11.9 Manual Y-Scale ...............................56
4.3.2.12 Locking Interval –Misc. Trend Chart ...................57
4.3.12.1 % Slip at Peak.....................................57
4.3.12.2 Time to Peak.......................................57
4.3.12.3 Time to Lockup....................................57
4.3.12.4 Y-Scale Min ........................................57
4.3.12.5 Y-Scale Max........................................57
4.3.12.6 X-Scale ..............................................57
4.3.12.7 Auto Y-Scale ......................................57
4.3.12.8 Manual Y-Scale ..................................57
4.4 Installed hardware field descriptions ..................................58
4.4.2 Force Transducers..................................................59
4.4.2.1 Left Wheel...........................................59
4.4.2.2 Right Wheel.........................................59
4.4.3 Water Equipment and Sensors...............................59
4.4.3.1 Flow Meters.........................................................59
4.4.3.2 Water Pumps.......................................................59
4.4.3.3 Water Tanks ........................................................59
4.4.4.1 DMI Distance Measuring Instrument....................59
4.2.4.4.1 Left Wheel........................................59
4.2.4.4.2 Right Wheel......................................59
4.2.4.4.3 Vehicle.............................................59
4.4.5 Test Start/Stop Devices
4.4.5.1 Pendant...............................................60
4.4.5.2 Photocell.............................................60
4.4.6 Temperature Sensors
4.4.6.1 Air Temperature Sensor......................60
4.4.6.2 Surface Temperature Sensor...............60
4.4.6.3 Left Tire Temperature Sensor..............60
4.4.6.4 Right Tire Temperature Sensor ...........60
4.4.6.5 TankTemperature Sensor....................60
4.4.7 Additional Equipment
4.4.7.1 Printer .................................................60
4.4.7.2 GPS ....................................................61
4.4.7.3 Right of Way Camera ..........................61
4.4.7.4 Vehicle Dash Display ..........................61
4.4.7.5 Inclinometer.........................................61
4.4.7.6 Accelerometer.....................................61
4.4.7.7 Texture Sensor....................................61

Dynatest 1295 Version 1.07 x Sep 2017
TABLE OF CONTENTS
SECTION DESCRIPTION PAGE
Section 4 4.5 Storage and Printing Field Descriptions............................................62
4.5.1 Data Storage...........................................................62
4.5.2 File Name ..............................................................62
4.5.3 File Directory...........................................................63
4.5.4 Test Set Number.....................................................63
4.5.5 Default File Setting……………………………………63
4.5.6 Output Files ............................................................63
4.6 Miscellaneous .................................................................................63
4.6.1 Test Printing............................................................63
4.6.2 Print Disk Files........................................................64
4.7 F Key Events......................................................................................65
4.8 SN Correction ....................................................................................66
4.9 Diagnostics ........................................................................................67
4.9.1 Encoders and Timers..........................................................67
4.9.1.1 dt meters and measurement theory....................67
4.9.1.2 Speed Meters ....................................................68
4.9.1.3 Encoder Count Meters.......................................68
4.10.1 Analog I/O........................................................................70
4.10.2 Analog Hardware Overview.................................70
4.10.3 Trace Select........................................................71
4.11.1 Digital I/O..........................................................................72
4.11.2 Digital Inputs:Port1,Port2,Port3...........................72
4.11.3 Digital Outputs:Port1,Port2 .................................73
4.12 Testing...........................................................................................75
4.12.1 Test Screen Layout...........................................................75
4.12.2.1 SN Average .....................................................76
4.12.2.2 SN Max............................................................76
4.12.2.3 SN Min.............................................................76
4.12.2.4 SN Standard Deviation.....................................76
4.12.2.5 Traction Average..............................................76
4.12.2.6 Traction Max....................................................76
4.12.2.7 Traction Min.....................................................76
4.12.2.8 Traction Standard Deviation.............................77
4.12.2.9 Load Average...................................................77
4.12.2.10 Load Max.........................................................77
4.12.2.11 Load Min..........................................................77
4.12.2.12 Load Standard Deviation..................................77
4.12.2.13 Speed Average................................................77
4.12.2.14 Flow Average...................................................77
4.12.2.15 Peak SN (PSN)................................................77
4.12.2.16 Time To Peak (TTP).........................................77