how to use foxwell crd700 diagital pressure tester

DPT701 Digital Pressure Tester User’s Guide_English Version_V1.00

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Trademarks FOXWELL is trademark of Shenzhen Foxwell Technology Co., Ltd. All other marks are trademarks or registered trademarks of their respective holders.

Copyright Information ©2013 Shenzhen Foxwell Technology Co., Ltd.

All rights reserved.

Disclaimer The information, specifications and illustrations in this manual are based on the latest information available at the time of printing.

Foxwell reserves the right to make changes at any time without notice.

Visit our website at: www.foxwelltech.com

For Technical Assistance, send us email at [email protected]

http://www.warensortiment.de/

mailto:[email protected]


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One-Year Limited Warranty

Subject to the conditions of this limited warranty, Shenzhen Foxwell Technology Co., Ltd (“FOXWELL”) warrants its customer that this product is free of defects in material and workmanship at the time of its original purchase for a subsequent period of one (1) year.

In the event this product fails to operate under normal use, during the warranty period,due to defects in materials and workmanship, FOXWELL will, at its sole option, either repair or replace the product in accordance with the terms and conditions stipulated herein.

Terms and Conditions 1 If FOXWELL repairs or replaces the product, the repaired or replaced product shall be warranted for the remaining time of the original warranty period.No charge will be made to the customer for replacement parts or labor charges incurred by FOXWELL in repairing or replacing the defective parts.

2 The customer shall have no coverage or benefits under this limited warranty if any of the following conditions are applicable: a) The product has been subjected to abnormal use, abnormal conditions, improper storage, exposure to moisture or dampness, unauthorized modifications, unauthorized repair, misuse, neglect, abuse, accident, alteration, improper installation, or other acts which are not the fault of FOXWELL, including damage caused by shipping. b) The Product has been damaged from external causes such as collision with an object, or from fire, flooding, sand, dirt, windstorm, lightning, earthquake or damage from exposure to weather conditions, an Act of God, or battery leakage, theft, blown fuse, improper use of any electrical source, or the product was used in combination or connection with other product, attachments, supplies or consumables not manufactured or distributed by FOXWELL.

3 The customer shall bear the cost of shipping the product to FOXWELL. And FOXWELL shall bear the cost of shipping the product back to the customer after the completion of service under this limited warranty.

4 FOXWELL does not warrant uninterrupted or error-free operation of the product. If a problem develops during the limited warranty period, the consumer shall take the following step-by-step procedure:

a) The customer shall return the product to the place of purchase for repair or replacement processing, contact your local FOXWELL distributor or visit our website www.foxwelltech.com to get further information. b) The customer shall include a return address, daytime phone number and/or fax number, complete description of the problem and original invoice specifying date of purchase and serial number. c) The customer will be billed for any parts or labor charges not covered by this limited warranty. d) FOXWELL will repair the Product under the limited warranty within 30 days after receipt of the product. If FOXWELL cannot perform repairs covered under this limited warranty within 30 days, or after a reasonable number of attempts to repair the same defect, FOXWELL at its option, will provide a replacement product or refund the purchase price of the product less a reasonable amount for usage. e) If the product is returned during the limited warranty period, but the problem with the product is not covered under the terms and conditions of this limited warranty, the customer will be notified and given an estimate of the charges the customer must pay to have the product repaired, with all shipping charges billed to the customer. If the estimate is refused, the product will be returned freight collect. If the product is returned after the expiration of the limited warranty period, FOXWELL’ normal service policies shall apply and the customer will be responsible for all shipping charges.

5 ANY IMPLIED WARRANTY OF MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE OR USE, SHALL BE LIMITED TO THE DURATION OF THE FOREGOING LIMITED WRITTEN WARRANTY. OTHERWISE, THE FOREGOING LIMITED WARRANTY IS THE CONSUMER’S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED. FOXWELL SHALL NOT BE LIABLE FOR SPECIAL, INCIDENTAL, PUNITIVE OR CONSEQUENTIAL DAMAGES, INCLUDING BUT NOT LIMITED


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TO LOSS OF ANTICIPATED BENEFITS OR PROFITS, LOSS OF SAVINGS OR REVENUE, LOSS OF DATA, PUNITIVE DAMAGES, LOSS OF USE OF THE PRODUCT OR ANY ASSOCIATED EQUIPMENT, COST OF CAPITAL, COST OF ANY SUBSTITUTE EQUIPMENT OR FACILITIES, DOWNTIME, THE CLAIMS OF ANY THIRD PARTIES, INCLUDING CUSTOMERS, AND INJURY TO PROPERTY, RESULTING FROM THE PURCHASE OR USE OF THE PRODUCT OR ARISING FROM BREACH OF THE WARRANTY, BREACH OF CONTRACT, NEGLIGENCE, STRICT TORT, OR ANY OTHER LEGAL OR EQUITABLE THEORY, EVEN IF FOXWELL KNEW OF THE LIKELIHOOD OF SUCH DAMAGES. FOXWELL SHALL NOT BE LIABLE FOR DELAY IN RENDERING SERVICE UNDER THE LIMITED WARRANTY, OR LOSS OF USE DURING THE PERIOD THAT THE PRODUCT IS BEING REPAIRED.

6. Some states do not allow limitation of how long an implied warranty lasts, so the one-year warranty limitation may not apply to you (the Consumer). Some states do not allow the exclusion or limitation of incidental and consequential damages, so certain of the above limitations or exclusions may not apply to you (the Consumer). This limited warranty gives the Consumer specific legal rights and the Consumer may also have other rights which vary from state to state.


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Safety Information

For your own safety and the safety of others, and to prevent damage to the equipment and vehicles, read this manual thoroughly before operating your tester. The safety messages presented below and throughout this user’s manual are reminders to the operator to exercise extreme care when using this device. Always refer to and follow safety messages and test procedures provided by vehicle manufacturer. Read, understand and follow all safety messages and instructions in this manual.

Safety Message Conventions Used

We provide safety messages to help prevent personal injury and equipment damage. Below are signal words we used to indicate the hazard level in a condition.

Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury to the operator or to bystanders.

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury to the operator or to bystanders.

Indicates a potentially hazardous situation which, if not avoided, may result in moderate or minor injury to the operator or to bystanders.

Important Safety Instructions

And always use your tester as described in the user’s manual, and follow all safety messages.

●Do not route the test cable in a manner that would interfere with driving controls.

●Do not exceed voltage limits between inputs specified in this user’s manual.

●Always wear ANSI approved goggles to protect your eyes from propelled objects as well as hot or caustic liquids.

●Fuel, oil vapors, hot steam, hot toxic exhaust gases, acid, refrigerant and other debris produced by a malfunction engine can cause serious injury or death. Do not use the tester in areas where explosive vapor may collect, such as in below-ground pits, confined areas, or areas that are less than 18 inches (45 cm) above the floor.

●Do not smoke, strike a match, or cause a spark near the vehicle while testing and keep all sparks, heated items and open flames away from the battery and fuel / fuel vapors as they are highly flammable.

●Keep a dry chemical fire extinguisher suitable for gasoline, chemical and electrical fires in work area.

●Always be aware of rotating parts that move at high speed when an engine is running and keep a safe distance from these parts as well as other potentially moving objects to avoid serious injury.

●Do not touch engine components that get very hot when an engine is running to avoid severe burns.

●Block drive wheels before testing with engine running. Put the transmission in park (for automatic transmission) or neutral (for manual transmission). And never leave a running engine unattended.

●Do not wear jewelry or loose fitting clothing when working on engine.


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Table of Contents

ONE-YEAR LIMITED WARRANTY ..................................................................................................... 2

SAFETY INFORMATION..................................................................................................................... 4

SAFETY MESSAGE CONVENTIONS USED ............................................................................................. 4

IMPORTANT SAFETY INSTRUCTIONS .................................................................................................... 4

1 USING THIS MANUAL ..................................................................................................................... 7

1.1 BOLD TEXT ................................................................................................................................. 7

1.2 SYMBOLS AND ICONS ................................................................................................................... 7

1.2.1Solid Spot............................................................................................................................ 7

1.2.2Arrow Icon ........................................................................................................................... 7

1.2.3 Note and Important Message ............................................................................................. 7

2 INTRODUCTION .............................................................................................................................. 8

2.1 TESTER DESCRIPTIONS ................................................................................................................ 8

2.2 ACCESSORY DESCRIPTIONS ......................................................................................................... 9

2.3 TECHNICAL SPECIFICATIONS......................................................................................................... 9

3 GETTING STARTED ........................................................................................................................ 9

3.1 PROVIDING POWER TO TESTER .................................................................................................... 9

3.1.1 Powered by Cell Battery ..................................................................................................... 9

3.1.2 Replace Battery(9V) ........................................................................................................... 9

3.2 SYSTEM SETUP ........................................................................................................................... 9

3.2.1 Select Language .............................................................................................................. 10

3.2.2 Select Measurement Unit ................................................................................................. 10

3.2.3 Save The Plate Number ................................................................................................... 10

3.2.4 Backlight .......................................................................................................................... 10

4 DIAGNOSTIC OPERATION ........................................................................................................... 11

4.1 START-UP AUTO TEST................................................................................................................ 11

4.2 DIAGNOSTIC FUNCTION SELECTION............................................................................................. 12

4.2.1 Oil Pressure Test ............................................................................................................. 12

4.2.2 Petrol Compression Test .................................................................................................. 13

4.2.3 Diesel Compression Test ................................................................................................. 14

4.2.4 80 Bar Manometer ........................................................................................................... 14

4.2.5 Petrol Injection System ..................................................................................................... 15


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4.2.6 Common Rail Test – Low Pressure Circuit ....................................................................... 16

4.2.6.1 About The Common Rail System .............................................................................. 16

4.2.6.2 To perform low pressure circuit test .......................................................................... 16

5 PRINT DATA .................................................................................................................................. 19


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1 Using This Manual

We provide tool usage instructions in this manual. Below is the conventions we used in the manual.

1.1 Bold Text

Bold text is used to highlight selectable items such as buttons and menu options.

Example

Press the ENTER key to select.

1.2 Symbols and Icons

1.2.1Solid Spot

Operation tips and lists that apply to specific tool are introduced by a solid spot ●.

Example

When System Setup is selected, a menu that lists all available options displays. Menu options include:

●Languages ● Unit ● Workshop Name saving

1.2.2Arrow Icon

An arrow icon indicates a procedure.

Example

To change menu language 1. Scroll with the arrow keys to highlight Language on the menu. 2. Press the ENTER key to select.

1.2.3 Note and Important Message

Note

A NOTE provides helpful information such as additional explanations, tips, and comments.

Example

NOTE Test results do not necessarily indicate a faulty component or system.

Important

IMPORTANT indicates a situation which, if not avoided, may result in damage to the test equipment or vehicle.

Example

IMPORTANT Do not soak keypad as water might find its way into the tester.


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2 Introduction

DPT701 is a useful tool to measure fuel pressure and engine compression. It can be used to measure pressure up to 80 bar(1160PSI) for any gas and noncorrosive liquid.

With the tester properly connected to the sensor and powered on, you can use the tester to measure fuel pressure and engine compression; to check the battery, the sensor and the microprocessor automatically; and transfer data to computer for close check and printing with wireless module.

2.1 Tester Descriptions

This section illustrates external features, ports and connectors of the tester.

Figure 2-1 front view 1 LCD Display - shows menus, test results and operation tips.

2 Back Key – cancels an action and returns to previous screen or level.

3 Printing Key– it’s used to send the test result to the printer if needed. With the wireless printing module, the user can print the test data without the action to connect it to a printer.

4 OK Key - confirms an action or movement and goes to next level, and saves test data.

5 Wireless Receiver Key - is used to send data to a PC using the Foxwell wireless receiver.

6 Direction Keys - select an option or show the Max value of the testing pressure..

7 LCD Backlight Key – To turn on/off the LCD backlight as users’ will in order to save battery power

8 Power Switch - turns on/off the scanner and press and hold for 5 seconds for emergency reboots.

9 Port for Sensor- Provides a connection between the pressure tester and the sensor.

IMPORTANT Do not use solvents such as alcohol to clean keypad or display. Use a mild nonabrasive detergent and a soft cotton cloth.


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2.2 Accessory Descriptions

This section lists the accessories that go with the tester. If you find any of the following items missing from your package, contact your local dealer for assistance.

1 User’s Guide

2 80 Bar Sensor

3 Wireless PC receiver

4 Spare Fuse

5 2X2 Diagnostic Adapter

6 CD

7 Sealant

8 Blower Molding Case

2.3 Technical Specifications

Sensor type: Strain gauge technology, amplified and digital temperature compression Sensor output: Ratiometric, 0.5/4.5 V DC at 5 V DC excitation Sensor FS.: 80 bar / 1160 psi Resolution: 0.1 bar / 1psi Proof pressure: 150% FS Battery type: 9V Display: Backlit 64x128 pixels graphic LCD Data transmission interface: wireless module Adapters included: 6mm and 8mm Working Temperature：0 to 60℃ (32 to 140℉) Storage Temperature：-20 to 70℃ (-4 to 158℉) Dimensions：190*110*44mm

3 Getting Started

This section describes how to provide power to the tester and how to program the scanner to meet your specific needs

3.1 Providing Power to Tester

Before using the tester, make sure to provide power to the tester. The unit operates on 9-volt cell battery

3.1.1 Powered by Cell Battery

The scan tool receives power through a 9 volt cell battery which installed in the back of the tester.

To install the battery 1. Prepare a 9 volt lithium battery. 2. Install this battery in the back of the tester. Please pay attention to its positive pole and negative

pole. 3. Press the power switch of the tester to power it on.

3.1.2 Replace Battery(9V)

1.If the product does not go on or goes out repeatedly, the power supply battery might be too low. 2.To replace the battery, open the rear cover of the instrument to gain access to the battery compartment. Replace the battery with a new 9-volt battery and replace the cover on the back of the instrument.

3.2 System Setup


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This section illustrates how to program the scanner to meet your specific needs. Options typically include:

● Select the language ● Change measurement unit (Bar or Psi) ● Save the plate number

Note System Setup settings remain until changes to the existing setups are made.

To do system setup 1. Enter into the setup mode by pressing the OK key as soon as the tester is turned on (within 3

seconds).

3.2.1 Select Language

Selecting Language opens a screen that allows you to choose system language. The tester is set to display English menus by default.

To configure system language

1. Scroll with the up and down arrow keys to highlight Language from Setup menu and press the OK key to confirm.

Figure 3-1 Sample Language Selection Screen

3.2.2 Select Measurement Unit

After confirming the language, the tester will automatically show the selection of measurement unit. The tester is set to display BAR as default pressure standard.

To select measurement unit

1. Scroll with the up and down arrow keys to select BAR/PSI from Setup menu and press the OK key to confirm

Figure 3-2 Sample Measurement Unit Selection Screen

3.2.3 Save The Plate Number

The Plate Number will be used to send the test data to PC for further checking and printing when the wireless receiver is connected with computer.

To Save The Plate Number 1. Press the data printing key 2. Input the plate number with the arrow keys.

3.2.4 Backlight

The backlight can be activated at any time using the backlight key. To deactivate the backlight, press the backlight again. Please note that the backlight needs a lot of battery power; so it should be used only when it is strictly necessary.


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4 Diagnostic Operation

This section illustrates how to measure fuel pressure and engine compression.

4.1 Start-up Auto Test

A start-up auto test assures the user that the battery, the sensor and the microprocessor are working properly when the tester is turned on.

To perform Start-up Auto Test

1. Connect the pressure sensor to the pressure tester, then press power on key to turn on the tester. The display will show the welcome message for three seconds.

Figure 4-1 Sample Start-up Welcome Screen

2. A “power on test” will be performed and the battery, sensor, memory and fuse will be tested one by one automatically.

Figure 4-2 Sample Battery Test Screen

Figure 4-3 Sample Sensor Test Screen

Figure 4-4 Sample Memory Test Screen


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Figure 4-5 Sample Fuse Test Screen

3. If any one item of the above four is failed, a faulty message will displayed.

Figure 4-6 Sample Start-up Auto Test Failed Screen

4.2 Diagnostic Function Selection

When “Power on test” is finished successfully, a menu with available service options displays. Menu options typically include

● Oil pressure test ● Petrol compression ● Diesel compression ● 80 Bar manometer ● Petrol inj. system ● Low side common rail

4.2.1 Oil Pressure Test

The oil pressure test allows you to test oil pressure. By default the maximum reading will be shown on the display.

To perform oil pressure test

1. Scroll up and down arrow keys to select Oil pressure test from the option menu and press OK key to confirm.

Figure 4-7 Sample Select An Option Menu Screen

2. The actual reading displayed as the following screen.

Figure 4-8 Sample Actual Reading Screen


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3. Using the right arrow key to move between the maximum and actual reading.

Figure 4-9 Sample Maximum Reading Screen

4. Using the Left arrow key to clear the maximum reading.

NOTE The maximum reading is stored even though the display shows the actual reading.

4.2.2 Petrol Compression Test

Petrol compression and diesel compression belongs to Engine compression test. It allows to you test the actual engine compression.

To perform Petrol compression test：

1. Scroll up and down arrow keys to select Petrol compression from the option menu and press OK key to confirm.


2. The petrol compression will be displayed. Scroll up and down arrow keys to select the right cylinder and the maximum reading will be displayed and stored automatically.

Figure 4-11 Sample Petrol Compression Reading Screen

3. Use the left arrow key to clear the reading of the selected cylinder and pressing the right arrow

key you can toggle between graphical and text display.

Figure 4-12 Sample Graphical Display Screen

NOTE The graphic bar will represent 0 to 10 bar when you test petrol compression.


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4.2.3 Diesel Compression Test

Diesel compression and petrol compression belongs to Engine compression test. It allows to you test the actual engine compression.

To perform Diesel compression test：

1. Scroll up and down arrow keys to select Diesel compression from the option menu and press OK key to confirm.


2. The diesel compression will be displayed. Scroll up and down arrow keys to select the right cylinder and the maximum reading will be displayed and stored automatically.

Figure 4-14 Sample Diesel Compression Screen

3. Use the left arrow key to clear the reading of the selected cylinder and pressing the right arrow key you can toggle between graphical and text display.

Figure 4-15 Sample Graphical Display Screen

NOTE The graphic bar will represent 0 to 80 bar when testing diesel compression.

4.2.4 80 Bar Manometer

80 Bar Manometer allows you to test any pressure up to 80 Bar. The actual reading will be shown on the screen by default.

To perform 80 Bar manometer:

1. Scroll up and down arrow keys to select 80 Bar manometer from the option menu and press OK key to confirm.



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2. The actual reading will be displayed as following screen.

Figure 4-17 Sample Actual Reading Screen

3. Use the right arrow key to move between the maximum and actual reading.

Figure 4-18 Sample Maximum Reading Screen

NOTE The maximum reading is stored even if the display shows the actual reading and the stored maximum reading can be read by pressing the right arrow key.

4.2.5 Petrol Injection System

Petrol Injec. System allows you to test petrol pressure. The actual reading will be shown on the screen by default.

To perform Petrol Injection System:

1. Scroll up and down arrow keys to select Petrol Injec. System from the option menu and press OK key to confirm.


2. The actual reading will be displayed as following screen.

Figure 4-20 Sample Petrol Inj. System Actual Reading Screen

3. Using the right arrow key to move between the maximum and actual reading, using the Left arrow key to clear the maximum reading.


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Figure 4-21 Sample Petrol Inj. System Maximum Screen

NOTE The maximum reading is stored even if the display shows the actual reading and the stored maximum reading can be read by pressing the right arrow key.

4.2.6 Common Rail Test – Low Pressure Circuit

This section illustrates how to test low pressure circuit with FOXWELL DPT701, the largest number of

failures are produced in the low pressure circuit.

4.2.6.1 About The Common Rail System

What is the Common Rail System?

The common rail system refers to the fact that all of the fuel injectors are supplied by a common fuel rail which is nothing more than a pressure accumulator where the fuel is stored at high pressure. It is one of the most advanced diesel fuel injection systems. One of the great advantages of this new system lies in the fact that the nozzles are controlled electronically; so an electronic unit decides what the exact amount of fuel needed by the engine is and sends an electrical signal to the injectors to open the nozzle. At that time the fuel pressure in the common rail passes through the nozzles and goes into the cylinders. The name common rail comes from the fact that the injectors are all connected to a common rail. The injection system is divided into two distinct parts: the low pressure circuit and the high pressure circuit. The low pressure circuit is responsible for getting fuel to the high pressure pump in optimal conditions of pressure, filtering etc.

The Structure of the Common Rail Systems

The low pressure circuit consists essentially of: fuel tank, fuel pump, filter, pressure regulator and pipes.

Figure 4-22 Sample Common Rail System Structure

4.2.6.2 To perform low pressure circuit test

Checking the low pressure circuit is relatively easy, by checking the fuel pressure at certain points of the system. To perform low side common rail, you need the following adaptors


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Figure 4-23 Sample Common Rail Adaptors

The “Low side common rail” test is a three step test. Scroll up and down arrow keys to select Low side common rail from the option menu and press OK key to confirm. When this option is selected, a message will show the test number and a brief description of the test to be performed.


Step 1 Pressure at high pressure pump input

After pressing the OK key, the following test screen displays. Press OK key to continue the test or press BACK key to return to previous menu.

Figure 4-25 Sample Low Pressure Circuit Test Step 1 Screen

NOTE The normal pressure value of test #1 is 2.5 Bar. Press OK key to go to next step if it shows 2.5 Bar or extremely lower than the correct pressure value. If it shows significantly higher pressure, it indicates a fault exists in the regulator.

Step 2 Pressure between the low pressure pump and fuel filter


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After step 1, please press the OK key, and the following test screen displays. Press OK key to continue the test or press BACK key to return to previous menu.


NOTE The normal pressure value of Test #2 is 2.5 bar, if it’s normal, then press OK key to go to test #3. If it’s significantly higher pressure, provided test #1 is correct, it indicates dirty filter . Please replace the filter cartridge. If the pressure is significantly lower and test #1 is also significantly lower, then please turn off tap and check: if the pressure is still 2.5 bar or higher, it indicates faulty regulator; if the pressure is too low, it indicates faulty low pressure pump.

Step 3 Pressure of the return circuit

After step 2, please press the OK key, and the following test screen displays. Press OK key to continue the test or press BACK key to return to previous menu.


NOTE The normal pressure value of Test #3 is 0.7 to 0.8 bar. If it’s normal, the whole test finished successfully. If it’s significantly higher pressure, it indicates return tube is obstructed. Once replaced, if pressure remains high, return valve of high pressure pump is faulty. If it’s significantly lower pressure, it indicates the return valve of high pressure pump is faulty.


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5 Print Data

DPT701 is able to be updated to keep you stay current with the latest development of diagnosis. To

print the data of DPT701, you need following tools ●DPT701 ●DPT701print tool

● PC or laptop with USB Ports and Internet explorer

● Wireless PC receiver

To be able to use print tool, PC or laptop must meet the following minimum requirements

● Operation System: Win98/NT, Win ME, Win2000, Win XP, VISTA and Windows 7.

● CPU: Intel PⅢ or better

● RAM: 64MB or better

● Hard Disk Space: 30MB or better

● Display: 800*600 pixel, 16 byte true color display or better

● Internet Explorer 4.0 or newer

IMPORTANT Do not disconnect the wireless receiver from computer, or power off the computer during

the process of printing.

To print test results 1. Download and launch DPT701 print tool. The application would show as below .

Figure 5-1 Sample Print Application Screen

2. Plug the wireless PC receiver into the USB port of the computer. The wireless receiver icon would turned from grey to blue if the receiver is recognized by the print tool.

Figure 5-2 Sample Blue Wireless Receiver Icon

3. Press the wireless receiver key so that the tester communicates with print tool .The Dynamic

Pressure screen popped up with a graph showing the data.


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Figure 5-3 Sample Dynamic Pressure Graph Screen

4. Press Print key to print the data. You are required to create the Plate Number on the tester.

Figure 5-4 Sample Plate Number Input Screen

5. The following print screen will pop up.

Figure 5-5 Sample Data Print Screen

6. Click print report to print the data through computer.


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Figure 5-6 Sample Data Report Screen

how to use foxwell crd700 diagital pressure tester

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