Parker TGSS 740 User Manual Download Page 10

True Ground Speed Sensor (TGSS) 740

  

10 

 

Installation

 

given to increase the material thickness as well. This will help reduce the bracket's 
susceptibility to vibration. 

MIN 6,35

IN

[.250]

5X R 6,35

[.250]

178
[7.0]

178
[7.0]

267

[10.5]

35.0°

 

Figure 4: Recommended mounting plate dimensions 

The TGSS has rubber shock absorber vibration mounts to reduce the effect of 
machine vibration. The vibration mounts have an internal M6 thread, the 
recommended installation torque is 5.4-7.3 Nm (48-65 in lbs).   

 

 

4.1.2.

 

Mounting Angle 

Any error in the mounting angle will directly affect the Doppler accuracy. At 35°, an 
error of 1° is approximately a 1% error in speed measurement. Post installation 
calibration should be done to remove errors due to bracket alignment tolerances 
and vehicle levelness.  

90°

35°

GROUND LEVEL

71

.9

[2

.83]

45.7

[1.80]

6.6 [.2

6]

BEAM PATTERN

MOUNTING PLATE

 

Figure 5: Installation angle 

 

Summary of Contents for TGSS 740

Page 1: ...TGSS True Ground Speed Sensor TGSS 740 User Manual HY33 5005 IB US Ed 01 2012 UM TGSS 740000 00 201201 03...

Page 2: ...ough its own analysis and testing is solely responsible for making the final selection of the system and components and assuring that all performance endurance maintenance safety and warning requireme...

Page 3: ...tion 9 4 1 Installation Guidelines 9 4 1 1 Mounting Bracket 9 4 1 2 Mounting Angle 10 4 1 3 Mounting the TGSS to a vehicle 11 4 1 4 Line of sight clearance 11 4 1 5 Installation Validation 12 4 2 Perf...

Page 4: ...rked with a warning symbol in the left margin indicate that a hazardous situation exists If precautions are not taken this could result in death serious injury or major property damage CAUTION Section...

Page 5: ...not be used If the control system shows error functions or if electronic modules cabling or connectors are damaged the system shall not be used WARNING Electronic control systems in an inappropriate...

Page 6: ...ls which can interfere with the functions of the system 2 1 3 Safety during start up WARNING The machine s engine must not be started before the control system is mounted and its electrical functions...

Page 7: ...sensor When the target terrain is moving relative to the sensor there is a change in the frequency of the reflected signal Doppler shift The ground speed is calculated by measuring the change in freq...

Page 8: ...tif 1 le dispositif ne doit pas causer d interf rence radio lectrique et 2 le dispositif doit tre en mesure d accepter toute interf rence radio lectrique m me si celle ci est susceptible de compromett...

Page 9: ...4 1 Installation Guidelines The TGSS 740 Radar measures motion relative to itself It is important to prevent unwanted motion in order to achieve optimal performance The unwanted motion could be of the...

Page 10: ...e the effect of machine vibration The vibration mounts have an internal M6 thread the recommended installation torque is 5 4 7 3 Nm 48 65 in lbs 4 1 2 Mounting Angle Any error in the mounting angle wi...

Page 11: ...he shock absorbers to a maximum depth of 6 35 mm 4 1 4 Line of sight clearance It is important for the sight line of the radar beam to be as unobstructed as possible Interference with radar beam can l...

Page 12: ...face most of the signal is reflected away from the radar 4 1 5 1 Line of sight evaluation With the vehicle stationary over a smooth surface slowly sweep the engine rpm over it s range Monitor the TGSS...

Page 13: ...return signal strength There is no return signal over standing water Short term loss of signal from small puddles is handled by the software When driving over large areas of water the output speed may...

Page 14: ...35 mounting angle The equation for Doppler shift frequency fd is given by V target velocity mph fo transceiver frequency Hz c speed of light 671 x 106 mph where angle between beam and path of target...

Page 15: ...nnector Pin out Pin Function 1 Output Speed square wave 2 Battery 9 to 16 Vdc 3 Ground When the unit is equipped with the Radar present output the connector is a Deutsch DT series housing part number...

Page 16: ...quirements Parameter Value Operating voltage 9 to 16 Vdc Operating current 120 mA 12 Vdc typical Circuit protection Current limiting device fuse of 5A should be installed Output signal Parameter Value...

Page 17: ...orms to the requirements of ASAE EP455 FEB 2003 Environmental Considerations in the Development of Mobile Agricultural Electrical Electronic Components ISO EN 14982 Agricultural and Forestry Machinery...

Page 18: ...Approximately 460 gms with cable Materials Enclosure black Xenoy Cable Water resistant 18 AWG 4 C SJOW 8 1 Dimensions The following diagram shows the dimensions of the TGSS 112 2 4 42 104 4 4 11 94 4...

Page 19: ...tion 5 15 1 Section 5 11 4 Level 2 Y F 12 Section 5 14 1 Mechanical Shock Y E 13 Section 5 14 2 2 Level 1 Mechanical Handling Shock Y C 14 Section 5 17 Combined Environment N 15 Section 5 10 1 Level 1...

Page 20: ...performed with a drop distance of 1000 mm It exceeded the EP455 requirement of 400mm D Particle Impact Samples were tested using an alternate method dropping the gravel from a height of 3 7m above the...

Page 21: ...emperature Change Rate 4 C min 3 hrs 3 hrs 3 hrs 3 hrs 3 hrs 4 hrs 11 hrs 30 min 1 Cycle T3 T2 T1 85 C Ambient 40 C On Off Supply Power 0 1 The samples underwent 10 cycles while EP455 requires 1 cycle...

Page 22: ...55 document 3 It is generally accepted that all else being constant ESD delivered by contact method is harsher compared to one delivered by air discharge method L EMC Immunity 1 Subject UUT to electro...

Page 23: ...tions 17 I Installation 9 Installation Guidelines 9 Installation Validation 12 Introduction 4 L Line of sight clearance 11 M Mechanical Specifications 18 Mounting Angle 10 Mounting Bracket 9 Mounting...

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