Troxler RoadReader 3430 Guida di riferimento

Installation Procedures for the InstroTek Universal Base

Board (UBB)

June 24 2013

The UBB is designed as an easy replacement for Troxler models 3411, 3430, 3440

baseboards as ell as the InstroTek 3500. Certain tools are required to install and setup

the UBB for it to function correctly. The InstroTek arranty on this product requires that

only authorized, trained service personnel familiar ith these types of products conduct

the installation and setup. Once the UBB is installed, the gauge should be re-calibrated or

verified according to ASTM D2922.

Model 3401 and 3411 Baseboard Installation are covered in Section A

Model 3430 and 3440 Baseboard Installation are covered in Section B

InstroTek Model 3500 Baseboard Installation are covered in Section C

lectronic Adjustment and Setup Procedure are covered in Section D

Tools Required:

• Soldering iron and solder

• De-soldering iron or solder remover (3411 only)

• Phillips scre driver

• 5/16” nut driver

• Small je elers scre driver or Potentiometer adjusting scre driver

• Oscilloscope

• Digital multi-meter (DMM)

• High voltage probe

S CTION A – Installing the UBB in a 3401 or 3411 Gauge:

Use the follo ing parts from the existing 3411/3401

gauge along ith your ne UBB to complete this

task

1- GM tube holders and scre s(2)

2- GM tubes ith nylon spring supports and

springs (2 each)

3- He3 tube (1)

4- metal base plate (1)

5- Copper grounding spring (2)

6- Curved He3 tube support and scre (1each)

7- Scre s and ashers that attach circuit board

to metal plate.

8- Scre s and ashers that attach baseboard

assembly to gauge

Fig. 1

Fig.2

Disassembling the existing baseboard:

1. Turn off the gauge and place the gauge on a

standard block. Remove the top shell,

disconnect the batteries, discharge the high

voltage and remove the existing baseboard

and metal plate assembly.

2. Remove the He3 tube from the assembly by

removing the curved support bracket and

then pulling the tube do n ard a ay from

the baseboard.

3. Use a 5/16 nut driver to remove the scre s

securing the GM tube holders. The GM

tube holders are slotted and are held by the

metal plate. One end of the GM tube holder

ill still be connected to the baseboard by

soldered resistors. Slide off the other one

and remove the tubes. Figs 1, 2 and 3.

4. Do not discard the copper grounding

springs, as they are needed ith the ne

UBB assembly.

5. The nylon spring supports and small coil

springs are located in the resistor connected

end of the GM tubes and may drop out if the

tube is turned do n ard during removal.

Save these.

6. Separate the metal base plate from the

baseboard by removing the scre s on the

top of the baseboard.

7. Slide the metal base plate off the remaining

GM tube holder.

8. From the top of the board, use a de-

soldering tool to disconnect the resistors

from the baseboard. This ill allo you to

remove the remaining GM tube holder from

the old baseboard.

9. You are no ready to assemble your ne

UBB board.

Assembling the new UBB baseboard:

1. Remove the metal cover from the UBB by

removing the scre s.

2. Locate the 3 groups of jumpers on the UBB.

Fig 5.

Fig.3

Reuse these parts

Fig. 5

Fig.6

3. The groups of jumpers are marked as

“3411” “3430” or “3440/ 3500” s itches.

4. To configure the UBB for operation as a

3401/3411baseboard, only the group of

jumpers marked as 3411 switches need to

remain shorted by means of the jumpers.

Carefully remove all of the jumpers from

the groups marked as 3430 switches and

3440/3500 switches by cutting them with

wire cutters.

5. Locate the groups of jumpers marked S4 and

S6. Leave the jumpers marked 3411. Cut

the jumpers marked 3500/3430.Fig 6b

6. Place one copper grounding spring bet een

the bottom side of the UBB and the GM

tube holder ith the resistors. Ensure the

resistor leads from the GM tube holder

extend through the solder holes of the UBB.

Secure the GM tube holder ith the

mounting scre s. Solder the resistor leads

to the UBB at GM1 and GM2 points. Fig.6.

7. Slide the metal base plate into the grooves

on the GM tube holder.

8. Secure the UBB to the metal base plate ith

the scre s taken out.

9. Place the GM tubes into the secured GM

tube holder making sure the end of the GM

tube ith springs and nylon spring supports

are the end inserted into this connector.

10. Install the other copper ground spring and

GM tube holder by sliding it onto the metal

base plate and securing it to the UBB ith

the appropriate scre s. Fig. 7 and 8.

11. Reinstall the He3 tube and mounting

bracket. Fig.9.

12. Place the complete assembly back into the

gauge and secure it ith the appropriate

scre s.

13. Connect the batteries and control board

(front panel) to the UBB.

14. The UBB assembly is no complete and

ready for electrical adjustment and setup.

15. Proceed to Section D.

Fig.7

Fig.8

Fig.9

Fig 6b

S CTION B – Installing the UBB in a 3430 or 3440 Gauge:

NOT : In addition to the UBB, the UBB Base Board Kit, part

#1520103, is required to replace baseboards in Troxler Model 3430 and

3440 gauges.

The Base Board Kit Includes:

1. Metal base plate assembly (1)

2. GM tube interface circuit board (1)

3. 4-40 scre s (4 each)

4. 6-32 x .500 (6 each)

5. 6-32 x .375 (3 each)

6. Interface board header (1)

7. # 4 lock asher (4 each)

8. # 6 lock asher (9 each)

9. metal cover box

Installing the UBB in a 3430 or 3440 gauge:

Use the follo ing parts from the existing 3430/3440

gauge along ith your ne UBB and Base Board

kit to complete this task.

1. GM tubes (2)

2. GM tube holder and scre s(1)

3. He3 tube (1)

4. Curved He3 tube support and scre

5. Scre s and ashers that attach circuit

board to metal plate.

Scre s and ashers that attach baseboard

assembly to gauge.

Small angle bracket at GM tube end.

Disassembling the existing baseboard:

1. Turn off the gauge, place the gauge on a

standard block, remove the top shell,

disconnect the batteries, discharge the high

voltage and remove the existing baseboard/

base plate assembly.

2. Remove the He3 tube from the existing

baseboard by removing the metal bracket and

Fig. 10

Fig. 12

Fig. 11

pulling the tube do n ard a ay from the

existing baseboard.

3. Remove the scre s securing the plastic GM

tube holder. (Fig 10)

4. Carefully remove the GM tubes by prying

them out of the connectors ith a small flat

scre driver.

Assembling the new UBB baseboard:

1. Remove the metal cover from the UBB by

removing the 3 scre s and ashers. Fig. 11.

2. Locate the 3 groups of jumpers on the UBB.

See Fig. 5.

3. The groups of jumpers are marked as “3411”

“3430” or “3440/ 3500” s itches. To

configure the UBB for operation baseboard

of your choice, only the group of jumpers

for your selection of baseboard need to

remain shorted by means of the jumpers.

Carefully remove all jumpers of the

remaining 2 groups by cutting them with

wire cutters.

4. Locate the groups of jumpers marked S4 and

S6. Leave the jumpers marked 3500/3430.

Cut the jumpers marked 3411. Fig 12b

5. Looking do n on the UBB ith the jumpers

at the bottom section of the board, locate the

3 holes on the left side. Solder the GM

assembly header on the underside the board

at this location. The header should sit flush

on the board. Fig. 12.

6. Attach the small angle bracket to the ne

metal base plate. Fig 13a &13b.

7. Secure the UBB to the base plate ith the

appropriate scre s. Use the provided flat

ashers under the lock ashers. Fig 14.

8. Carefully press the GM tubes into the

contacts on the GM tube interface board.

9. Slide the GM tubes into the GM tube holder

mounted on the metal base plate and attach

the GM tube interface board to the baseboard

mounted header. Fig. 15.

10. Secure the GM tube interface board ith the

provided 4-40 scre s and ashers. Fig. 16.

Fig. 13a

Fig. 13b

Fig. 14

12b

11. Reinstall the He3 tube and mounting bracket.

12. Place the complete UBB assembly back into

the gauge and secure it.

13. Connect the batteries and scaler to the UBB.

14. For 3440 gauges connect the depth strip to

the header on the upper edge of the UBB.

Fig. 16.

15. The UBB assembly is no complete and

ready for setting up.

S CTION C – Installing the UBB in

an InstroTek 3500 Gauge:

All existing hard are from the presently installed

3500 baseboard is utilized for the replacement

baseboard.

Disassembling the existing baseboard:

1. Turn off the gauge, place the gauge on a standard

block, remove the top shell, disconnect the

batteries, and remove the 3 scre s securing the

metal cover from the top of the existing

baseboard. Discharge the high voltage by shorting

the pins on the upper left side of the baseboard.

2. Remove the 6 scre s securing the existing

Base board to the base plate.

3. Using both hands, gently pull the baseboard

directly up ard removing it from the base plate.

Assembling the new UBB baseboard:

1. Align the HE3 tube ith the connector on the

ne UBB and firmly press the UBB do n ard.

Verify the HE3 tube makes a secure connection to

the UBB connector.

2. Gently raise the lo er left side of the UBB and

visually align the GM pins on the UBB ith

the GM header assembly connected to the

baseplate.

3. Press do n on the UBB seating the GM pins into

the GM tube header.

4. Secure the UBB to the baseplate ith the 6

baseboard securement scre s.

Fig. 15

Fig. 16

5. Before installing the metal UBB cover verify the

setup procedure in Section D.

S CTION D -

lectronic Adjustment

and Setup Procedures

1. Place the gauge on the standard block. Turn

on the gauge.

Setting up the moisture signal:

2. Set the oscilloscope to 200 mV scale, ac coupled and very small

µsec(s) time base.

3. Locate the test point “M-ADJ” on the UBB. This is located at the

upper right of the UBB belo the battery connections.

4. Place the scope probe in the test point and connect the ground lead

of the probe to the gauge aluminum base.

5. Using the scope and small scre driver, adjust potentiometer R33

until you have a moisture signal at this test point ith peak

amplitude of 600 mV.

Setting up the Density signal:

6. Locate the test point “D2-ADJ” and “D1-ADJ” on the UBB.

These are located on the lo er side of the UBB left of the jumpers.

7. Place the scope probe in one test point and connect the ground lead

of the probe to the aluminum gauge base.

8. Using the scope and small scre driver, adjust potentiometer R15

(for “D2-ADJ”) and R7 (for “D1-ADJ”) until you have a density

signal for each of these test points ith a peak amplitude of 600

mV.

Reassemble the gauge:

9. Turn off the gauge and discharge the high voltage circuit by

shorting the “HV-Discharge” pins on the upper left corner of the

UBB ith an insulated metal object such as a scre driver.

10. Place and secure the metal cover on the UBB.

11. Reassemble the gauge.

12. The gauge ill need to re-calibrated or

verified for accurate results according to

ASTM D2922.

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