LIABILITY AND SAFETY    i

Safety Symbols and Markings    i

Liability    ii

General Safety Instructions    iii

Device Handling    iv

1. INTRODUCTION    1

1.1. Product Description    1

1.2. Parts of the Device    2

2.INSTALLATION    3

2.1. Environment    3

3.OPERATION    5

4. MAINTANANCE    11

5.DECLARATION    15

6.WIRING DIAGRAM    16

7.CONTACT INFORMATION    17

Figure 1:Parts of the Device    2

Figure 2: Stainless Steel Jar    5

Figure 3: Fixing Tool    6

Figure 4: Cover    6

Figure 5: Opening the Door 1    7

Figure 6: Opening the Door 2    8

Figure 7: Place the Jar on the Guard    8

Figure 8: Sensor    9

Figure 9: Counter    10

Figure 10: Counter Keys    10

Figure 11:Extraction of Box    13

Figure 12: Fuse with its Spare    13

Figure 13: Belts    14

BLES

This manual contains important information on the safe usage and maintenance of UTA-0620A-N and of its related components. Please read through the manual carefully before operating the device for the first time and keep it for the future reference.

Safety Symbols and Markings

UTEST General Terms and Conditions of Sales and Delivery apply in all cases. Warranty and liability claims arising from personal injury and damage to property cannot be upheld if they are due to one or more of the following causes:

1. Unauthorized modifications to the device and its components.

2. Failure to use the instrument in accordance with its designated use and purpose which is described in this manual.

3. Failure to adhere to the sections of the manual dealing with the performance check, operation and maintenance of the instrument and its components.

4. Incorrect performance checks for operation and maintenance of the instrument and its components.

5. Damage resulting from the effects of foreign bodies, accidents, vandalism and force majeure.

The instrument is only to be used for its designated purpose as describe herein. Replace faulty components only with original replacement parts from UTEST. Accessories should only be installed or connected to the instrument if they are expressly authorized by UTEST. If other accessories are installed or connected to the instrument, then UTEST will accept no liability and the product guarantee is forfeit.

This part contains important safety instructions that the user must follow for operation and storage of UTA-0620A-N.

1. Device should be seated on a steady base.

2. Always follow basic safety precautions when using this product to reduce risk of injury from any dangerous situations.

3. Read and understand all instructions in the documentation that comes with UTA-0620A-N.

4. Observe all warnings and instructions marked on the product.

5. Before removing any covers or performing maintenance repair and service, isolate from electrical supply by removing mains plug.

6. Wear protective clothing when handling equipment at extreme temperature.

7. Avoid contact with these materials if any organic or inorganic chemicals are used in the test to be performed with the equipment.  Wear safety glasses, gloves and a lab coat before starting the test.
   

8. Do not lean the cabinet to the wall at zero distance.

9. While the test is in operation do not remove any covers or attempt to adjust any part of the machine.

10. Make sure that your hand is not under the jar when placing the drum on the reduction gearings.

11. After placing the sample in the jar, make sure that the cap is fully inserted and the locks are fully tightened.

WARNING: The equipment is not allowed to be operated by children or anyone under the influence of alcohol, drugs or pharmaceutical preparations. Anyone who is not familiar with this manual must be supervised when using the equipment. Carry out the stipulated maintenance properly and at the correct time. Following completion of the maintenance tasks, perform a functional check.

Device Handling

The electronic and mechanic parts of UTA-0620A-N are sensitive components. Please handle them carefully.

1. Do not place any heavy objects on the device.

4. Avoid any impact or rough handling that might damage the device.
5. Do not change the calibration settings of the machine.
   
6. 
   
7. Do not disassemble UTA-0620A-N

5. Install the product in a protected location where no one can step on or trip over the power cord and in a location where the power cord cannot be damaged.

1.1 Product Description

The Micro Deval Testing Machine is used to determine the resistance to wear of aggregates in the presence of water and an abrasive charge. The device can perform tests in accordance with ASTM D6928, D7428 and AASHTO T327 standards. UTA-0620A-N consists of a steel frame, two stainless steel jar stainless steel spheres (2 pcs) and an automatic digital counter which allows machine to stop automatically at the preset number of revolutions. Stainless steel drums rotate at a speed of 100 ± 5 r.p.m.

The Micro-Deval is constituted of a sturdy steel frame which can receive 2 stainless jars together. The jars are made of stainless steel with diameter and height according to standards (diameter within 194 and 202 mm and height within 170 and 177 mm) and are complete with cover and locking device.

UTA-06200E Micro-Deval consists of shaft, drums, electric motor, reduction gear, control unit and cover. Please see Figure 1 to location of the units.

UTA-0620A-N will be sent as one piece. Therefore, users do not need to assemble it. First, the machine must be properly positioned. Then electrical connections should be made. The samples required for the test should be placed in the drum in accordance with the standards. Testing can be started by closing the top cover of the drums after adjusting the speed value from the control controller.

2.1. Environment

Make sure that the room in which the device is going to be placed have a proper mains supply which is in compliance with the machines specifications. Check the voltage (V), ampere (A), frequency (Hz), and the phase of the mains supply in Table 1.

Table1: UTA-0620A-N Electrical Connection Properties

UTA-0620A-N Electrical Connection Properties 

Main electricity line must be free from instabilities and repetitive power cuts for both the extended life of the device and the continuity of testing. Therefore, make sure that the mains supply is well grounded. If the power cuts are frequent or the grounding is not well enough, the use of an uninterruptible power supply (UPS) is recommended.

Make sure that the device is placed in a clean and dry surrounding. Direct contact of the device with the sunlight should be avoided. A conditioned room for example, will comply the above conditions and will result in best operational performance and measurement results. Device should be well accessible from the front and the sides for connections, testing and maintenance.

In order to prevent inaccurate test results, the ground should be rigid enough to minimize vibrations or shocks. If there are any other testing equipment or a source that creates vibrations on the floor, device should be placed maximum possible distance to that source. Surface of the ground should be horizontal and smooth enough so that the horizontal and vertical alignment of the device are not shifted.

1. Read the requirements of the related standard of the test.

2. Open the Bakelite screw on the Stainless-Steel Jar by turning it counterclockwise.
   

3. Turn the tool used to fix the cover until it is free from the fixing points.

4.    Remove the cover.

5. Pour the aggregate, abrasion charges, and water that you have prepared in accordance with the standard into the jar.

6. Close the jar's lid by performing the reverse procedure for opening the lid.
   

NOTE: Before closing the lid of the jar, make sure that the black gasket inside the lid is not folded, dislodged or damaged.

7. Then open the cover of the device as shown in Figure 5 and Figure 6.

Figure 5: Opening the Door 1

Figure 6: Opening the Door 2

8. Place the jars in which you have placed the sample inside the device, on the black guards on the reduction gearing. Make sure that the jars are completely in contact with the guards.
   

9. Close the cover. There is a sensor to check whether cover is closed or not. If the sensor cannot detect the cover test will not start.
   

10. After connecting the power cord, turn on the power switch. Automatic digital counter allows machine to stop automatically at the present number of revolutions.

11. Set the counter to the desired number of revolutions. To do this press the left arrow key to switch the digits. Set each digit by using Up and Down keys. Then press MODE key on the Direct Reader Counter.

12. Press Start Button.

Left Arrow Key

13. After the test is completed, the counter must be reset with the reset button. To make a new test, after the stop button, a new sample is prepared and the processes are repeated.

14. After the test, collect the aggregate and the steel balls in a pan, taking care to avoid the loss of any aggregate. Using a washing bottle, carefully wash the inside of the drum and the lid, and retain the washings. Empty the material and all the washings on to the sieve according to the standard. Wash the materials in a stream of clean water.

15. Carefully separate the aggregate particles retained on the 8 mm guard sieve from the steel balls by using magnet. Taking care not to lose any aggregate particles.

16. Proceed for the calculation according to the standard.

4. MAINTANANC

ELECTRIC HAZARD: It is important to care that the unit must be switched off and the main cable must be removed before starting any maintenance for user’s safety.

The UTA-0620A-N must be used correctly and maintenance and inspections must be performed at regular intervals. Such precautions will guarantee the safe and efficient functioning of the equipment. Periodic maintenance consists of inspections made directly by the test operator and/or by the authorized service personnel.

All safety devices must be functional at all times. Damaged protective covers or devices must be replaced as soon as possible. When safety components are replaced, the protective devices are to be properly attached and tested.

We recommend that the device is cleaned of any particles and dust from the scattered specimen after the test with a water, damp cloth, and brush to avoid incrustations which could damage the paint work.

Maintenance to the equipment is responsibility of the purchaser and must be performed as stated by this chapter. Failing to perform the recommended maintenance actions or maintenance performed by unauthorized people can void the warranty.

Trained technical personnel or electrician must carry out maintenance of the electric system. For a device related electrical issues consult UTEST Technical Service Department or representative.

If the machine does not switch on, check whether the emergency stop button stays in a pressed position or not. If the emergency stop button does not stay in pressed position, then fuse in rocker switch is changed with its spare given. You must first plug out the power cable to perform this operation. After that extract the box which carries the fuse with screwdriver and change the fuse with its spare (See Figure 11 and 12).

If you notice any leakage in the jar's lid, first make sure you close the lid completely. Then check whether the black gasket under the cover is damaged. A damaged gasket can cause leakage.

Check the belts inside the device depending on the frequency of use and make sure that there is no wear on the belts.

If device does not start check the sensor (see Figure 8). There is a sensor to check whether cover is closed or not. If the sensor cannot detect the cover test will not start.

5.DECLARATION

6.WIRING DIAGRAM

7.CONTACT INFORMATION

Address: ASO 1. Organized Industrial Site

Ural Street No: 18 Sincan /Ankara /TURKEY

Phone: +90 312 394 38 75 (pbx)

Fax: +90 312 394 38 77

Info: utest@utest.com.tr

Export Sale: sales@utest.com.tr

Technical Service: service@utest.com.tr