TransTech 300 Pavement Quality Indicator Operator’s Handbook

Pavement Quality Indicator™
Model 300
Operator’s Handbook
TransTech Systems, Inc.
2469 Albany Street
Schenectady, NY, 12304 USA
Toll Free: 1-800-724-6306
Phone: 518-370-5558
Fax: 518-370-5538
E-mail: [email protected]
Web Site: http://www.transtechsys.com
4/10/00 Rev 1
Table of Contents
1.0 Introduction
1.1
1.2
1.3
1.4
Asphalt Pavement Quality Indicator™ Features
Purpose of this Handbook
Application Summary
Safety
1
1
2
2
2
2.0 Controls and Components
2.1 External Controls and Components
2.2 Receipt and Preparation
3
4
3.0 Operation of the PQI Unit
3.1 General Operation Overview
3.2 Starting and Self Test
3.3 Setting the Date and Time
3.4 Setting the Measurement Units and MTD
3.5 Calibration
3.6 The Three Reading Modes
3.7 Shallow and Deep Penetration
3.8 Moisture/Moisture Correcting & Temperature Correction
3.9 Data Recall and Printing
6
8
9
11
12
14
17
17
18
4.0 Routine Operation
19
5.0 Maintenance and Trouble Shooting
5.1 General Care and Maintenance
5.2 Trouble Shooting
19
20
6.0 Warranty
21
Measurement Table
22
TransTech Systems Inc.
Pavement Quality Indicator™
Operating Instruction Handbook
4/10/00 Rev. 1
By TB Bailey Consulting
Copyright © 1999-2000 TransTech Systems Inc.
All rights reserved.
Pavement Quality Indicator™ and PQI™ are trademarks of
TransTech Systems, Inc.
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TransTech Systems, Inc. - Pavement Quality Indicator™
1.0 Introduction
1.1 Asphalt Pavement Quality Indicator™
Features
TransTech's third generation Pavement Quality Indicator™ (PQI) utilizes state of the
art technology to get accurate asphalt pavement density readings. It’s primary features are:
• No special license or radioactive materials required.
• Light weight and easy to use
• 12 hours of portable operation
• Measures density in common units (Lb/CuFt and Kg/M3
• Measures and compensates for asphalt temperature and surface moisture
• Stores 99 readings on internal Data Logger
• Optional Download to printer/computer
How Does it Work?
The density of asphalt pavement is directly proportional to the measured dielectric
constant of the material. TransTech's Pavement Quality Indicator™ uses electrical
waves to measure dielectric constant using an innovative, toroidal electrical sensing field established by the sensing plate. The electronics in the PQI convert the
field signals into material density readings and displays the results. Once calibrated
direct density readings can be consistently obtained.
Isolation
Ring
Receiver
Transmitter
Defect, void
or density
change.
Sensing Field
Material being
measured
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1.2 Purpose of this Handbook
This handbook is intended to be both a training manual and a reference source for
the operation, care and maintenance of the TransTech Pavement Quality Indicator.
You must read through the entire manual completely to familiarize yourself with the
unit’s features, controls and operating modes before starting to take readings and
analyze data.
1.3 Application Summary
The PQI is intended primarily for use on newly-laid asphalt pavements with thicknesses ranging from 1 inch to 6 inches. Once calibrated the PQI will provide reliable and consistent density measurements.
1.4 Safety
Every effort has been made to make the Pavement Quality Indicator convenient to
use and inherently safe. The PQI uses no nuclear elements, and is instead based
on a safe, low-voltage direct current electrical measurement techniques.
Like any instrument, however, the user should exercise care and common sense in
its use to prevent mishaps.
Take careful note of the following:
Warning
Do not use the unit on or near exposed electrical wiring.
A shock hazard potential exists if contact is made
with the exposed wiring.
Warning
Use care in handling the unit. Personal injury can occur through
improper handling. Take proper precautions to prevent accidental
dropping of the unit.
Caution
Turn the unit off when not in use and during transport.
Caution
Unauthorized disassembly of the unit
will void the warranty.
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2.0 Controls and Components
Prior to learning how to operate the PQI, we recommend that you familiarize yourself with the PQI unit’s operating controls and components. Illustrations and listing
of the main components and their basic functions are shown below.
Low Battery
Light
Temp Probe Connector
ON/ OFF
Switch
Display
Charger
Connector
Keypad
Computer/Printer
Connector
2.1 External Controls and Components
Figure 2.1 - PQI External Controls and Components
The light flashes when the battery charge is getting low.
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2.2 Receipt and Preparation
2.2.1 Receipt
The PQI shipment package includes the items listed below. Report any shipping
damage to the carrier. Contact TransTech Systems Inc. Customer Service if any of
the parts are missing.
•
•
•
•
One storage case
Operating handbook.
One PQI unit and temperature probe.
One battery charger: 120 V AC to 12 VDC Fast Charge
2.3.2 Preparation
Important
Before using the unit for the first time the internal battery
must be fully charged.
Follow the unpacking and setup instructions below.
The third generation PQI unit is powered by nickel metal hydride batteries which
weigh less and are smaller than equivalent lead-acid cells. The new microprocessor
controlled battery charger will usually charge the PQI unit in a couple of hours. For
first use and after a fully discharged battery pack a maximum of 5 hours should be
allowed for charging.
Under normal operation, the PQI unit can operate in excess of 13 hours at full
charge. The internal 12 volt battery is designed to be recharged in approximately 2
hours, using the 120 volt AC battery charger.
Warning
Attempting to recharge the unit in any other way than with the
recharger supplied with the unit can result in damage to the unit and
can present a safety hazard. Use of any charging means other than
the recharger supplied with the unit will void the unit’s warranty.
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TransTech Systems, Inc. - Pavement Quality Indicator™
The figure below shows the battery charger supplied with the PQI and connected to
the charger connector located on the side of the unit.
To charge the unit, proceed as follows:
1. Turn the PQI unit OFF.
2. Connect the charger to the charger connector located on the side
of the PQI unit.
3. Plug the charger into a standard 120 V AC outlet.
4. When charging is complete, unplug the charger from the power source first
then from the connector on the PQI unit.
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3.0 Operation of the PQI Unit
3.1 General Operation Overview
The Pavement Quality Indicator is designed to be an extremely flexible unit, with
several useful modes of operation. Each mode of operation is accessed through
the keypad controls. The number, letter and arrow keys have several functions.
The immediate function is shown by the text in the display panel. The display can
show four lines of text at a time called a page. The display tells the operator what
the PQI unit is ready to do or indicates that a reading is being taken or that more
key setting information is needed from the operator. Pressing a key causes the PQI
to “beep” indicating that the keystroke has been entered.
TransTech Systems
PQI V3.1G
Initializing…
Figure 3.1 First or “bootup” screen display.
1
2
3
C
4
5
6
D
7
8
9
E↑
ENT
0
B
F↓
←
Figure 3.2 Keypad
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A summary of the keypad codes used to set date and time, change measurement
modes, enter values for the Maximum Theoretical Density (MTD) value and enter
data are shown below. Each key function is discussed in more detail in the following sections of this handbook.
Keypad Functions
Key
1-9
B
C
D
E
F
ENT
Function
The number keys have different settings depending upon the menu
display.
Works as a back space key when it’s necessary to delete and
replace a single digit of information that was just entered by
mistake. Used as a “Hot Key” to switch among the three
measurement modes.
Used as a “Hot Key” to display the CHANGE OFFSET screen during
calibration when in one of the measurement modes.
Used as a “Hot Key” to display the DIAGNOSTICS screen when in one of
the measurement mode. Works as a decimal point when entering values.
The up arrow scrolls the display in the MAIN MENU. This key also
brings the unit back to the start up menu after taking a
density measurement.
The Down scrolls the display in the MAIN MENU. Used as a
“Hot Key” to toggle between Deep (D) and Shallow (S)
penetration when in one of the measurement modes.
The ENTer key functions like a return key in that it tells the PQI unit
to accept information or to take a density measurement.
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3.2 Starting and Self Test
Important
Before using the unit for the first time the internal battery
must be fully charged.
Follow the setup instructions in Section 2.2 above.
3.2.1 Starting the PQI unit for the first time.
A. Turn the PQI on by flipping the POWER switch. After a few seconds the display
will show the TransTech boot up screen. After the boot up screen clears the
PQI will display the SELECT PAVEMENT TYPE screen. From the main menu
option #5 also allows changing of this setting. The selection of a “Pavement
Type” which the PQI is going to be used on is required as part of the initial calibration of the unit.
Select Pavement Type
1) Base
2) Intermediate
3) Top/Surface
Startup Menu
1) Setup Menu
2) Run
B. Press the number 1 to show the first page of the MAIN MENU (also called
setup menu).
1) Set Date/Time
2) Set Units (Lb/CuFt)
3) Set MTD (200.0Lb)
ENT) Exit
(Scroll)
C. Press the Down arrow to show the second MAIN MENU page.
4) View Parameters
5) Set Pave Type (B)
6) Date Format M/D/Y
ENT) Exit
(Scroll)
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D. Press the Down arrow to show the third MAIN MENU page.
7) Control Data Log
8) Recall Data Log
9) Print Data Log
ENT) Exit
(Scroll)
Press the Down arrow to return the display to the first page of the
MAIN MENU as above.
3.3 Setting the Date and Time
The following steps check the date and time of the clock inside the PQI. At the first
screen of the MAIN MENU, pressing the 1 key enters the Set Date and Time mode.
03/24/2000 22:26:50
1) Change Date
2) Change Time
ENT) Exit
3.3.1 Setting the Date
A. Pressing the 1 key prepares the PQI for setting the month, day and year. The
first line of the display indicates the date presently stored in the PQI. If this date
check is correct then press the ENT key to return to the MAIN MENU.
Enter Date
MM/DD/YYYY
XX/XX/XXXX
ENT) Change C) Cancel
The MM is the first portion of a two digit month representing the 12 months of
the year. For example 01 is January.
The DD is the second portion of a two digit day indication with a value from
01 to 31.
The YYYY is the third portion of the date representing a four digit year. For
example, 1999, 2000 or 2001.
B. Notice the flashing cursor beneath the MM letters. Using number keys enter
the value for the current month, 01, 02, etc. At this time using the B (backspace) key will move the cursor between the two MM spaces so that the
month value can be changed.
C. See that the underline cursor has moved to the DD position. Using number
keys enter a two digit value for the current day of the month, 01, 02, etc.
Using the B (backspace) key will move the cursor between the two DD spaces
so that the day value can be changed if a mistake is made.
D. The underline cursor has moved to the YYYY position. Using number keys, enter
a four digit value for the year. Using the B (backspace) key will move the cursor
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between the four spaces so that the year value can be changed if a mistake is
made. Pressing the ENT key sets the new date. Pressing the “c” key cancels
and returns the PQI to the change date or the time screen without making any
changes to the current date.
E. From the Main Menu option #6 “Date Format” allows the date format to be
changed from M/D/Y to D/M/Y.
3.3.2 Setting the Time
A. From the Main Menu press the 1 key. Press the 2 key and the PQI is ready to
have the time set. The HH is the hour portion of the time in a 24 hour format
(midnight is 00 and 1 PM is 1300).
Enter Time
HH:MM:SS
XX:XX:XX
ENT) Change C) Cancel
The MM is the minute portion of the time display with a range of 00 to 59
minutes.
The SS is the seconds portion of the time also with a range of 00 to 59 seconds.
B. See that the underline cursor is under one of the HH letters. Use number keys
to enter the new hour of the day. Using the B (backspace) key will move the
cursor between the four spaces so that the year value can be changed if a
mistake is made.
C. The underline cursor has moved to the MM letters. Use the number keys to
enter a new minute value. Using the B (backspace) key will move the cursor
between the two spaces so that the minute value can be changed if a mistake
is made.
D. The underline cursor has moved to the SS letters. Use the number keys to
enter the new seconds values. Using the B (backspace) key will move the cursor between the two spaces so that the seconds value can be changed if a
mistake is made.
E. Pressing the ENT sets the new time. Pressing the “C” key cancels and returns
the PQI to the change date or time screen without making any changes to the
current time.
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3.4 Setting the Measurement Units and MTD
3.4.1 Setting the Measurement Units
A. From the MAIN MENU.
1) Set Date/Time
2) Set Units (Lb/CuFt)
3) Set MTD (200.0Lb)
ENT) Exit
(Scroll)
B. Press the 2 key to alternate between the English (Lb/CuFt) and Metric
(Kg/Cum) system of density units. For example set the PQI to English units.
C. The PQI is set to read and display these density units for all subsequent operations.
3.4.2 Setting the MTD value
The Maximum Theoretical Density (MTD) value is provided from the asphalt mix
designer.
A. Pressing the 3 key prepares the PQI unit to accept or change the current MTD
value.
Set MTD
(200.0 Lb/CuFt)
1) Keep this value
2) Enter a new value
B. Pressing the 1 key will return the display to the MAIN MENU without any
change to the stored MTD value. Pressing the 2 key changes the display to the
CHANGE MTD menu.
Set MTD
(200.0 Lb/CuFt)
D= "."
B= <New:
C. At this display, if the ENT key is pressed a 0.0 MTD value will occur and the
display will return to the Main Menu.
D. Use the keypad to enter a new 4 digit MTD value. At this time the B key can
be used to back space and change any of the digits. When the new MTD value
is set pressing the ENT key sets the new MTD value in the PQI. The display will
return to the Main Menu. The “D” key is used to enter the decimal point.
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3.5 Calibration
Calibration is necessary for accurate and consistent readings. The PQI must be calibrated for each asphalt mat at each job site. Readings for the PQI are recorded
and compared to lab tests on core samples taken from the same location. Be sure
that the PQI has been charged at least 2 hours. Use the sample table in the back
of this handbook for recording the readings from the PQI and the lab results of the
core samples.
3.5.1 Preparation
Pick a location on the asphalt that is dry. Designate an area approximate 10 feet
long and 5 feet wide on the asphalt mat. Divide the area into five data locations.
See Fig. 3.5.1.
3.5.2 Calibration Readings
A. Turn the PQI on. Select the type of pavement you will be calibrating the PQI
from the menu choices. A “B”, “I” or “T” will be displayed with in [ ].
B. Choose #2 (run) from the startup menu.
C. Using the “B” key, press the key until “Single Mode” appears on the screen.
D. Using the “F” key, press it to select shallow or deep penetration mode. An S or
D will be displayed within brackets [ ].
E. Place the PQI in the first location on the asphalt mat. Using a crayon marker
draw a circle around the PQI. The round sensor plate may be used as a guide.
Press the ENT key, (DO NOT TOUCH THE PQI) and wait for a reading to complete. Record the density reading.
HINT:
Better readings are taken if no hands or objects are in contact with
the PQI.
1
2
3
4
5
Figure 3.5.1 Reading Location Layout
F. Move the PQI approximately 2 inches up and to the right on the outside of the
circle. Consider this position as the 2 o’clock location. Press the ENT key to take
another reading and record it in the table given in the back of this manual.
5
1
4
PQI
5
3
4
2
5
1
2
5
1
3
4
2
5
1
3
4
2
1
3
4
3
Figure 3.5.2 PQI Measurement Pattern
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G. Move the PQI clockwise around the marked circle to about the 4 o’clock position. Press the ENT key to take another reading and record it in the table.
H. Continue to move the PQI in clockwise steps around the marked circle stopping
at the 8 o’clock and 10 o’clock positions to take and record density readings.
Following the pattern in Fig. 3.5.2, move the PQI to the next circle location,
record a density reading in the center and at each clock position, in turn, until
the table is complete.
3.5.3 Calibration Comparison
A. Arrange to have physical core samples taken from the center of each marked
circle location in the 10 foot strip.
B. Enter the density value from each core sample on the data table.
C. Calculate the numeric difference between the average PQI readings and the
core density lab reports. Add or subtract to obtain a small number which represents the difference between the density value that the PQI is reading versus
the actual density values from the core samples. These numbers are used to
adjust the calibration offset value stored in the PQI so that the unit can indicate readings that are very close to the actual density values for the asphalt
mix at the job site.
Example:
• The average of the PQI readings equals 145 Lbs/CuFt
• The average of the core densities from the lab equals
150 Lbs/CuFt.
• The difference is 5 Lbs/CuFt.
The PQI is reading lower, so that 5 Lbs/CuFt must be added to the current offset
value stored in the PQI.
3.5.4 Calibration Offset Value
A. From the “Single Read Mode” screen press the “C” key. The PQI will enter the
calibration routine.
Offset [D] = 17.0
1) PQI reads too hi
2) PQI reads to lo
ENT) Exit
The current calibration value will be displayed along with two choices. Pressing 1
will confirm that the PQI is reading to high. Pressing 2 will confirm that the PQI is
reading to low.
Offset Adjustment
D= "." B= <-
Adjustment:
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B. An adjustment value is obtained from the comparison between the readings
from the PQI and the density values from the core lab samples. Enter the
adjustment value from the data sheet using the numbers on the key pad. Press
the ENT key to set the new value.
Adjustment = -12.3
New Offset = 27.3
1) Use this value
2) Keep old value
C. Press 1 to store the new offset calibration value.
The PQI is now calibrated. Congratulations!
3.6 The Three Reading Modes
3.6.1 Single Reading Mode
The single reading mode is a more accurate way of measuring density. A reading
can be made every five seconds. This mode is suggested for use during initial calibration.
Single Mode [DB]
Press ENT to Read
3.6.2 Continuous Reading Mode
The continuous reading mode provides for real time measuring of density. This
mode allows the user to quickly scan the density of the asphalt mat. It can be useful to identify single reading and average mode sample locations.
Continuous Mode [DB]
Batt: 12.7V
H2O: 23.2 187.6 F
D: 156.5 Lb (87.8%)
3.6.3 Average Reading Mode
The average reading mode is the most accurate way to measure the density of a
location in which the PQI performs the calculation to determine the average several
readings. This mode allows for averaging of between 1 and 9 readings.
Avg Mode (3) [DB]
1-9) New # of reads
ENT) Start Reading
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A. The data memory logger stores data taken in the Average Mode only. From the
MAIN MENU press the Down arrow until the screen below appears.
7) Control Data Log
8) Recall Data Log
9) Print Data Log
ENT) Exit
(Scroll)
Press key 7 once to display the DATA LOG CONTROL screen.
1) Data Log ON
2) Data Log OFF
3) Data Log Clear
ENT) Exit
Press key 3 to Clear all the previous readings from the Data Logger. Press 1 to
turn the Data Logger ON for the Average Reading mode. After readings are
complete pressing 2 turns off the Data Logger.
B. Once in this mode, the user is ready to take an average of a number of density
readings (between 1 and 9)…5 is recommended
Avg Mode (3) [DB]
1-9) New # of reads
ENT) Start Reading
On the first line, [D] means that the PQI is set for deep penetration, the (3)
means that 3 readings are to be averaged. The [B] means that the PQI is set
for use on base. Pressing a number between 1 and 9 will set the number of
readings to be averaged.
C. The next screen indicates that the PQI is ready to take a reading at the first
location.
Avg Mode (3)
[DB]
ENT)Take Reading #1
Press ENT and Do Not Touch the PQI while it takes a reading.
D. Move the PQI and follow the instructions on the display for the
next reading.
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E. After the last reading screen press ENT again for the PQI to calculate the
current average.
Avg Mode (3)
[DB]
ENT) Display Average
H2O: 23.2 187.6 F
D: 156.5 Lb (87.8%)
F. The next screen indicates that the PQI is ready to be moved to a new location
for the next density reading. Note any major change in the relative moisture on
the H2O indicator.
Avg Mode (3)
[DB]
ENT) to continue
H2O: 23.2 187.6 F
D: 156.5 Lb (87.8%)
Continue to move the PQI in the pattern of Fig. 3.5.2 and take readings at
each location.
G. At this time, if data logging is turned on, the user is allowed to log the last
average.
Log the last avg?
(23 points in log)
1) Yes
2) No
H. Logging the average allows the user to enter a station location.
For example; the Station Number from a site map may be give as “300 +
050.“ Enter 300 as the first#, enter 50 as the second#. As before, the B key
can be used to “backspace” and correct numbers. Put in the numbers for the
current location then press ENT.
Bypass the Set Location screen by pressing ENT.
Enter Station #
Example: 300 +50
First #:
Second#:
Data Added to Log
Press ENT
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3.7 Shallow and Deep Penetration
The third generation PQI has a shallow and deep range of asphalt pavement penetration. The preferred range of operation is the deep mode. This is because in the
deep range, surface irregularities have a minimal effect on the density reading. In
addition the deep range provides more depth and better volume averaging. The
shallow mode should be selected for a thin lift measurement.
From any measuring mode pressing the F key will toggle between
SHALLOW [S] and DEEP [D] penetration range. A click sound along with the keystroke beep indicates that the PQI has changed depth modes. The display below
shows that the PQI in set for deep penetration. Use the shallow mode for mat
thickness of 3/4" to 1" compacted. Use the deep mode for 1" to 6" compacted.
Single Mode [DB]
Press ENT to Read
3.8 Moisture
Excessive moisture can affect the accuracy of the PQI. DO NOT take a reading
where there is signs of excessive surface moisture. However if the water (H2O) levels are low and relatively the same, then density readings can be consider very
accurate. The Relative Water Level is displayed as “H2O” values in all measurement modes of the PQI.
Continuous Mode [DB]
Batt: 5.6V
H2O: 23.2 187.6 F
D: 156.5Lb (87.8%)
The display shows H2O values in three digits.
3.8.1 Moisture correction
The third generation PQI has a built in moisture correcting formula. Care should
still be used when taking PQI density readings in areas of the mat mean standings
surface moisture.
Hint:
Always wipe the sensor disk with a clean dry cloth
before taking another reading.
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3.8.2 Temperature Compensation
The third generation PQI comes equipped with a infrared temperature probe
attached to the connector at the front of the PQI. Be sure that the temperature probe is pointing down toward the asphalt mat. It is recommend that the
probe be attached to the PQI and used at all times except for storage.
Temperature readings allow for internal offset adjustments due to extreme temperature changes on the asphalt mat.
A. Temperature readings are displayed during all of the measurement modes.
3.9 Data Recall and Printing
3.9.1 Data Recall
A. From the MAIN MENU pressing key 8 will display the first RECALL DATA LOG
screen.
Data Log Size: 22
Up/Down to select
ENT to exit
Pressing the Up or Down arrow keys displays the previous
or next set of readings.
[01] Loc 0300+0150
06/23/2000 22:54:26
H2O: 23.1 T: 186.4 F
Dens: 6.7 Lb
The
The
The
The
first row displays the record number [1] and the location.
second row displays the time and date the reading was made.
third row displays the H2O and temperature.
fourth row displays the average density reading.
B. Pressing the ENT key returns the display to the MAIN MENU.
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3.9.2 Printing Data
An optional printer can make a permanent record of all the readings at a particular job site and asphalt mix. The PQI record memory may be cleared and the PQI
moved to another job site.
A. Once the printer is connected, printing is started from the third screen of the
MAIN MENU.
7) Control Data Log
8) Recall Data Log
9) Print Data Log
ENT) Exit
(Scroll)
Pressing key 9 starts the transfer of data from the PQI to the printer.
Send Data Log to…
1) Printer
2) Computer
ENT) Exit
B. During printing the screen below is displayed:
Printing StandBy
C. When all records are printed the PQI display will return to the MAIN MENU
automatically.
(Optional device linking to a computer has been added for future use)
4.0 Routine Operations
Once calibrated the PQI is ready to be used at each job site and asphalt mix. It is
suggested that 5 or more readings be taken at each site following the reading pattern of Fig. 3.5.2 and utilizing the Data Logger.
5.0 Maintenance and Trouble Shooting
5.1 General Care and Maintenance
The PQI has been designed to require a minimum of maintenance or service.
Normal care in use should insure long and trouble free operation. The bottom of
the sensing probe is protected by a durable black bottom. This material was chosen as it is resistant to adhesion of pavement particles. A thin coat of silicone
spray, wiped on with a dry cloth will enhance its performance. If pavement materials begin to adhere to the bottom, a rag moistened with WD40 (kerosene) will
clean it off.
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5.2 Trouble Shooting
The chart below provides guidance to a few suspect conditions.
Trouble Shooting Chart
Problem
Remedy
Incorrect Screen Display
Check Power switch
Check battery charger
Incorrect Density Reading
Clean off probe
Check calibration
Check H2O reading
Incorrect Temperature
Check temp. probe connection
Check that temp. probe is pointed
down toward pavement
Clean temp. probe head
Data is not being recorded
Review Data Logger procedure
Turn unit off a few seconds then
turn it on.
5.2.1 Diagnostics
In the event that the PQI continues to malfunction an internal diagnostics mode
can be activated to provide necessary technical information to the factory.
In the event that a repair is required, it is strongly recommended that authorized
factory service be obtained. Unauthorized repair or maintenance by the user during
the warranty period will void the unit’s warranty.
From the Main Menu option #4 “View Parameters” is a diagnostic tool for factory use.
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TransTech Systems, Inc. - Pavement Quality Indicator
6.0 Warranty
The Company warrants to the Purchaser that the product delivered hereunder will
be free from defects in material or workmanship and be the kind and quality designated or specified in the contract or purchase order. This warranty shall apply only
to defects appearing within one (1) year from the date of shipment by the
Company.
If the product delivered hereunder does not meet the above warranty and if the
Purchaser promptly notifies the Company, the Company shall thereupon correct
any defect, including nonconformance with the specifications, either (at the
Company’s option) by repairing any defective or damaged parts of the product,
replacing the product, or by making available the necessary repaired or replacement parts.
The liability of the Company under this warranty, for any loss, whether the claim is
based on contract or negligence, shall not in any case exceed the cost of correcting defects in the product as herein provided, and upon the expiration of the warranty period, all such liability shall terminate. The foregoing shall constitute the
exclusive remedy of the Purchaser and the exclusive liability of the Company.
The foregoing warranty is exclusive and in lieu of all other warranties, whether written, oral, implied or statutory.
No warranty of merchantability or of fitness for purpose shall apply.
Unauthorized service shall void this warranty.
Factory authorized service and replacement items may be obtained directly from
TransTech’s factory or through an authorized representative. For further information
contact TransTech Customer Service:
Telephone - (518) 370-5558 or
Toll Free in the US - 1 (800) 724-6306
FAX - (518) 370-5538
E-mail - [email protected]
Address: TransTech Systems Inc.
Customer Service
2469 Albany St.
Schenectady, NY 12304
TransTech Systems, Inc. - Pavement Quality Indicator
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Measurement Table
Company Name ________________ Date _______
Job site ______________________
Asphalt Mix ___________________ MTD value _________
Calibration Work Sheet
Position
Location Location Location Location Location
1
2
3
4
5
Center
2 o'clock
4 o'clock
8 o'clock
10 o'clock
Total
Average
(÷ by 5)
Core Sample ____ _____ ______ _____ _____
Difference ____ _____ ______ _____ _____
Suggested Calibration Offset value _______
Calibration Value Trend Sheet
Calibration
Values
Mix Type
TransTech Systems, Inc. - Pavement Quality Indicator™
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TransTech Systems, Inc. - Pavement Quality Indicator
Measurement Table
Company Name ________________ Date _______
Job site ______________________
Asphalt Mix ___________________ MTD value _________
Calibration Work Sheet
Position
Location Location Location Location Location
1
2
3
4
5
Center
2 o'clock
4 o'clock
8 o'clock
10 o'clock
Total
Average
(÷ by 5)
Core Sample ____ _____ ______ _____ _____
Difference ____ _____ ______ _____ _____
Suggested Calibration Offset value _______
Calibration Value Trend Sheet
Calibration
Values
Mix Type
TransTech Systems, Inc. - Pavement Quality Indicator™
TransTech Systems, Inc. - Pavement Quality Indicator
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Notes
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TransTech Systems, Inc. - Pavement Quality Indicator™
Notes
TransTech Systems, Inc. - Pavement Quality Indicator™
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TransTech Systems, Inc.
2469 Albany Street
Schenectady, NY, 12304 USA
518-370-5558