GEISMAR Garnet P8 Operating Manual Download Page 19

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8.1 Network Rail NR/L3/TRK/4900 Specific Models

Models

(deviation from standard technical specification)

Network Rail Track Inspection Digital Gauge TYPE 2

(incorporates shouldered thrusts)

Geismar Garnet P8

(single piece unit)

Geismar Garnet P8-T

(two-piece unit)

Parameter

Range

Accuracy Resolution

Gauge

(mm)

1410 to 1490

±1.0

±0.1

Groove gap

(mm)

25 to 125

±1.0

±0.1

Network Rail Layout Inspection Digital Gauge TYPE 3

(incorporates cylindrical thrusts)

Geismar Garnet P8-P

(single piece unit)

Geismar Garnet P8-P-T

(two-piece unit)

Parameter

Range

Accuracy Resolution

Gauge

(mm)

1410 to 1490

±0.5

±0.1

Groove gap

(mm)

25 to 125

±1.0

±0.1

Electrical Insulation

The Garnet digital track gauge comprises of a yellow GRP body which has an electrical
insulation resistance greater than 800

GΩ per cm. It does not interfere with track signals and

is compatible for use in Live 3rd and 4th rail areas. It complies with NR/L3/TRK/4900.

GAD04DOC820Ver9 - en.docx

Summary of Contents for Garnet P8

Page 1: ...PRECISION DIGITAL TRACK GAUGE FOR TRACK AND SWITCH GEOMETRY MEASUREMENTS GAD04DOC820Ver9 en docx OPERATING MANUAL ...

Page 2: ...l geismar com LOCAL REPRESENTATIVE Nous nous réservons le droit d apporter toute modification aux caractéristiques du matériel ainsi qu à sa mise en œuvre son mode d entretien et sa liste de pièces détachées We reserve the right to make any alteration or improvement to the specification operating and maintenance instructions as well as to spare parts list Die von uns durch technischen Fortschritt ...

Page 3: ...R Absolute Cant Offset displayed when re zeroing from setup menu New 35mm limit on absolute Cant Re zeroing Troubleshooting guide updated New technical support email address added 14 12 09 PH V7 Correction to charge times and autonomy Correction to front cover gauge and cross level wrong way around in photo Corrections to the performance table in the technical spec 8 0 Diagrams changed to show X l...

Page 4: ...odify translate make any attempt to discover the source code of the Software or create derivative works from the Software or iv Use a previous version or copy of the Software after you have received a disk replacement set or an upgraded version as a replacement of the prior version All copies of the prior version must be destroyed Limited Warranty Geismar warrant that the media on which the Softwa...

Page 5: ...libration 10 4 Software Menus 11 4 1 Menu Settings Description 11 4 1 1 Battery 11 4 1 2 Cross level Rezero 11 4 1 3 Language 11 4 1 4 Power 11 4 1 5 Backlight 11 4 1 6 Measure Units 12 4 1 7 Twist 12 4 1 8 Groove 12 4 1 9 Groove Latch 12 4 1 10 Firmware Version 12 4 1 11 Serial Number 12 4 1 12 Calibration Date 12 4 1 13 Exit Menu 12 4 2 Cross level Rezeroing Calibration 12 5 Charging the Batteri...

Page 6: ...t 1 1 Packing List The Garnet is supplied with the following components If any of these items are missing then contact your local Geismar representative Track Gauge Mains Battery Charger Operating Manual Calibration Certificate 1 2 Initial Instructions The Garnet track gauge is fitted with an internal Ni MH battery Before the instrument is first used the battery must be fully charged using the pro...

Page 7: ...n start the gauge operating 2 2 Switching Off Pressing both buttons simultaneously for 5 seconds will switch off the gauge Alternatively if the auto Power Off option has been enabled then the gauge will automatically switch off after a preset time of inactivity This is detailed in the Software Menus section of the manual 2 3 Control Buttons These two buttons are marked and and are used to operate ...

Page 8: ...use of on screen contextual help icons These appear on the LCD alongside the relevant control button or to remind the operator of their function Commonly used icons and an explanation of their meaning are listed below OK or Enter Scroll through option Next menu 2 6 DC Charging Socket This socket is used for charging the battery and can be found on the underside of the Garnet A battery charger is p...

Page 9: ...uring feet found on the Groove measuring side of the Garnet are in contact with the running face of the rail The Gauge paddle is spring loaded outwards so it is necessary to retract this paddle before it can be correctly positioned Alternatively and depending on what is being measured this paddle can be permanently retracted using the small catch found on the underside of the Garnet 3 2 Power On T...

Page 10: ...r Out away from the track centre The table below illustrates how the different measuring modes are selected Groove Paddle Enabled Groove Paddle Gauge Paddle Display Output Description Out Out Gauge 1436 4 X level 152 1 m m m m Gauge Cross level including orientation Out In 1436 4 X level 152 1 m m m m Running rail to opposite check rail Cross level including orientation In Out Groove 76 3 1400 1 m...

Page 11: ...ayed Pressing again will store the current Cross level value as the new Twist base reference and return the Garnet to Cross level measuring mode The first time the Twist screen is entered after a power up will result in an invalid Twist measurement being displayed as no base reference has yet been taken 3 7 Cross level Rezeroing Calibration To maintain integrity of Cross level and Twist measuremen...

Page 12: ...or The frequency by which the message is displayed is dependent on the remaining battery capacity i e with 20 charge remaining the battery level will be displayed every 20 seconds increasing to 5 seconds when the battery reaches 5 During this period the operator should consider charging the Garnet Note that the battery status value is only an indicator and not an exact figure If the Garnet is char...

Page 13: ...be returned to your local Geismar representative for re calibration 4 1 13 Exit Menu Select to exit the menu or select then menu will loop around to the start Battery 4 2 Cross level Rezeroing Calibration To maintain integrity of Cross level and Twist measurements the Garnet should regularly undergo a Cross level Rezeroing calibration This should be routinely performed and in the following circums...

Page 14: ...ue the calibration process During the measuring process a thermometer bar graphs indicates the progress It is essential the Garnet is not touched during this measuring process Processing Once the calibration process is complete the following message will be displayed If Cross level Rezeroing was initiated manually by selecting from within the user menu then the number displayed represents the ABSO...

Page 15: ...arger has an input operating voltage range of 100VAC to 240VAC 50 60 Hz 3 The unit will take approximately 15 hours to charge assuming a completely uncharged condition 4 Once the battery is charged disconnect the charger from the mains supply and remove the charging plug from the instrument The Garnet is now ready for use The instrument should never be left charging for more than 24 hours as this ...

Page 16: ...torage Ensure that the internal battery is regularly re charged See chapter 5 in order to prevent long term damage Regularly check for any signs of damage or misuse Regularly check for excessive play in the measuring paddles Regularly check that the paddle movement is smooth and free from glitches 6 2 Calibration Spot checks for calibration accuracy should be carried out as part of the routine mai...

Page 17: ...ong with the serial number and firmware version of your unit displayed on the LCD at start up to garnet geismar co uk The Garnet has a Cross level offset error Rezero the Garnet using the procedure described in Section 4 of this manual The Garnet Freezes Reset the Garnet by holding down the buttons for 10 seconds and then release Once switched off re initialise by pressing the button If the Garnet...

Page 18: ... depending on measurement being taken Gauge Thrust Bearings contact point Shape Contact point Cylindrical 0 14mm below rail top Standard A Shouldered 13 16mm below rail top Standard B 11 14mm below rail top Standard C Batteries Integral rechargeable Ni MH Autonomy Nominal 200 hours without backlight Charging Via external universal input charging unit 110 220VAC 50 60 Hz Charging Time 15 hours for ...

Page 19: ... Rail Layout Inspection Digital Gauge TYPE 3 incorporates cylindrical thrusts Geismar Garnet P8 P single piece unit Geismar Garnet P8 P T two piece unit Parameter Range Accuracy Resolution Gauge mm 1410 to 1490 0 5 0 1 Groove gap mm 25 to 125 1 0 0 1 Electrical Insulation The Garnet digital track gauge comprises of a yellow GRP body which has an electrical insulation resistance greater than 800 GΩ...

Page 20: ...Weight 3 00kg Noise Level dBA n a Vibration Level m s 1 This machine conforms to The Supply of Machinery Safety Regulations 1992 Rail Safety Group Standard GM RT 1310 EMC Regulations for Railway Applications EN50121 The Low Voltage Directive Supplied By Societe L Geismar N MacCuaig UK Development Manager Attention Any modification to this gauge without the prior written agreement of the Manufactur...

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GEISMAR Garnet P8, Operating Manual

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