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BD Instruments

Author: Syed Islam

BD InstrumentsArticles by: Syed Islam

Los Angeles Abrasion Machine With Safety Cabinet

General Features:
Los Angeles device with Sound proof (security) cabinet is used for determination of aggregates resistance to fragmentation. The machine consists of an electronic control unit and a rolled steel drum having an inside diameter of (711 ± 5) mm and internal length (508 ± 5) mm. The drum is rotated at a speed of between 31 and 33 r.p.m.

The machine is equipped with automatic counter, which allows stopping when the preset number of revolutions is completed. There is a tray supplied with machine for easy discharge of specimen.

Manufactured from sheet steel, internally lined with sound-proofing material for noise reduction, conforming to CE safety directives. When opening the cabinet’s door during Los Angeles working, a micro switch automatically stops the rotation of the drum.

Locking Mechanism is also available as optional and (should be factory installed) should be ordered separately. Locking mechanism of the drum helps the user when filling the samples and lock the door nuts.

Abrasive charges should be ordered separately according to the standards.

Standards:
EN 1097–2, 12697-17, 12697-43, ASTM C131, AASHTO T96

Technical Specification:

Accessories / Spare Parts:

Micro-Deval Testing Machine

General Features:
Micro Deval Testing Machine used to determine the resistance to wear of 25-50mm size aggregates. The machine consists of a steel frame,two rotating bars with capacity of 4 cylinders.
Device is equipped with two stainless steel cylinders, and 25kg of ∅ 10 mm stainless steel balls and automatic digital counter which allows machine to stop automatically at the preset number of revolutions.
Stainless steel Ø200*154 drums are rotating at speed of 100 (±5) r.p.m.
Soundproof Safety Cabinet should be ordered separately during the order stage.

Standards:
EN 1097-1

Technical Specification:

Accessories / Spare Parts:

Nordic Abrasion Machine

General Features:

Nordic Abrasion Machine has been developed for testing the resistance of aggregates to wear by abrasion from studded tyres. The test is performed on natural or artificial stones and aggregates between 11.2 mm and 16.0 mm.
The test consists of a rotating aggregate in a drum containing steel abrasive balls and water. The machine consists of an electronic control unit and a rolled stainless steel drum having an internal diameter of 206.5 mm, internal length of 335 mm and thickness of 6 mm. The drum is rotated at a speed of 90 ± 3 r.p.m. 3 wings are installed inside of the drum to allow the balls and aggregates to be mixed properly.
The abrasion loss rate of aggregates is calculated after the specified number of revolutions stated in the relevant standard.
11,1 mm diameter steel balls ( 3.5 kg.) should be ordered separately.
The Nordic Abrasion Machine is supplied complete with Ø 15 mm, 7 kg Steel Balls.
Standards:
EN 1097-9; UNI 8520-13-16
Technical Specification:
Accessories / Spare Parts:

Aggregate Impact Value

General Features:
Used to determine the impact value of aggregates and select them for a given application.
The machine has a trip-action hammer release, and blow counter device. Manufactured from plated steel against corrosion. The counter fitted to the machine automatically records the number of blows delivered to the sample.  Supplied complete with 75 mm diameter * 50 mm cylindrical measure and steel tamping rod. 

Standards:
BS 812

Technical Specification:

Accessories / Spare Parts:

Aggregate Crushing Value Apparatus

General Features:

Aggregate crushing value provides a relative measure of the resistance of an aggregate to crushing under a gradually applied compressive load. Consists of ∅ 150 mm steel cylinder, plunger, base plate, tamping rod ∅ 16 x 600 mm and measure ∅ 115 x 180 mm deep. Used for aggregate passing 12.7 mm and retained by 9,52 mm sieve. Consists of∅ 75 mm steel cylinder, plunger, base plate, tampingrod ∅ 8 x 300 mm and measure ∅ 57 x 90 mm deep.Used for aggregates smaller than 9,52 mm. All parts are powder coated or galvanized.

Standards:
BS 812:110

Technical Specification:

Accessories / Spare Parts:

Sand Equivalent Test Set

General Features:
Sand Equivalent Test Set is used to determine the fines of aggregates.
The Sand Equivalent Test Set complete with siphon assembly (irrigator tube with valve, rubber stopper, siphon tube and hose, blow tube), funnel, measuring can, 5 lt capacity sand jar and a carrying case.
Supplied with two Sand Equivalent Measuring Two Graduated Cylinder and EN Model Weighted foot assembly for EN Model and two Sand Equivalent Measuring Graduated Cylinder and ASTM Model Weighted foot for ASTM Model.

Standards:
EN 933–8, ASTM D2419, AASTHO T176

Technical Specifications:

Accessories / Spare Parts:

Sand Equivalent Shaker

General Features:
The unit provides a constant uniform shaking with automatic cycle test. Provides shaking action at the specified rate and stroke. Supplied complete with built in timer that stops the shaker at the end of the test. Two models are available HR-A0815 without Security Cabinet and HR-A0820 withSecurity Cabinet. When opening cabinet’s door during shaker working, a micro switch automatically stops the machine.

Standards:
EN 933–8, ASTM D2419, AASTHO T176

Technical Specification:

Universal Testing Machine (UTM)

Product Description

1000kn Servo Steel Stranded Wire Universal Testing Machine(UTM)
Applications:

This Machine used to do Tension test of steel stranded wire, it can used to perform tension, compression, bend, shear test of metal and non-metal material. Oil cylinder of machine is underneath type, can free adjust testing room, automatic hydraulic clamp system, four column of main frame structure can be adjustable. Use import high quality electronic parts and components for production. Windows platform software. It has the feature such as automatic calibrate load, distortion, automatic switch measuring range, automatic stock test condition, test result, automatic count Fm, ReL, ReH, RP0.2, RP0.05, Rm and elastic modulus etc..It has the function of dynamic display test data and curve when test, data edition, browse test curve, magnification, superpositionm, comparision etc., can print complete test report and test curve.

Features:
1. 4 upright posts, hard chromeplated, easy installation of hydraulic jaw, tension fracture position in the middle of specimen.
2. With high quality parts, imported motor, thick steel column, plates and beam.
3. Noncorrosion column and screw poles to ensure long time application.
4. Steady working.
5.Equip special steel stranded wire entensometer, it’s precision is high, precision is ±0.5%, scale distance is 500mm, measuring range is 0-50mm.
6. Equip with special long type clamp, automatic clamp well by hydraulic system, break point is in the center of specimen not in the end.

Specification:

Model WAW-1000
Max. testing power 1000KN
Software control PC Controlled Electro-hydraulic Servo UTM software
Testing power Precision grade 0.5
Testing power distance 2%-100%FS
Distortion testing precision ±1%/±0.5%
Distortion testing range 2%-100% full range of extensometer
Displacement measuring 0.01mm
Max.lift speed of testing board 70mm/min
Piston travel 250mm
Max.tension distance 1000mm
Compress distance 0-490mm
Clamp diameter of round specimen Φ20-70mm
Clamp thickness of flat specimen 0-40mm
Clamp width of flat specimen 80mm
Size of compression plate 205mm×205mm
Bending stick distance 500mm
Bending stick width 140mm
Bending degree allowance 150mm
Main frame size 900×630×2250mm
Controller size 1040×650×860mm
oil pump power 2.0KW,1.5KW
Low grip motor power 1.1KW
Distortion testing device Electronic Extensometer
Overload protection 2-5%
Weight 3000kgs

DIGITAL STORAGE OSCILLOSCOPE

FEATURES:
  • 200/100/70/50 MHz : 2 Channel models ; 100/70/50 MHz : 4 Channel models
  • 1GSa/s Maximum Sampling Rate
  • 10M Maximum Memory Depth For Each Channel
  • 7” 800 x 480 WVGA LCD Display
  • 256 Color Gradient Display Function to Strengthen Waveform Performance
  • 1Mpts FFT Frequency Domain Signal Display
  • I C/SPI/UART/CAN/LIN Serial Bus Trigger and Decoding Functions
  • Zero Key Function For Horizontal Time, Vertical Voltage and Triggering
  • Compact and Innovative Exterior Design
Details:
The GDS-1000B Series digital storage oscilloscopes equip with 200/100/70 MHz : 2 Channel models; 100/70/50 MHz : 4 Channel models, that provide entry level users with diversified selections. The maximum real time sampling rate can be up to 1GSa/s. The robust functional performance makes the economical oscilloscope more colorful and allows entry level users to sumptuously enjoy the fun and value brought by test and measurement which is precisely the emerging mission of the test and measurement industry that GW Instek works relentlessly to achieve. 10M memory depth for each channel yields exquisite measurement results and allows each retrieved waveform to successfully reveal the details of signal. Engineers are often baffled by failing to retrieve signal details when measuring basic electric circuit signals. Now, GDS-1000B series oscilloscopes, with 10M memory depth for each channel, are capable to uncover all signal details. 7” 800 x 480 WVGA LCD display and the 256 color gradient display function together allow the GDS-1000B Series to distinctly display waveform details in gradients while measuring fast changing analog signals. Additionally, 50,000wfms/s waveform update rate helps engineers clearly understand the gradients of signal variations and easily identify the problem of transient signal variations.
1Mpts FFT signal display makes the frequency domain display function more delicate. Engineers can clearly observe the distributed details of frequency domain signals. Smooth and rapid response can even better locate where the problems are originated. Powerful
FFT function realizes high efficient spectrum analysis measurement which is indispensable for technology and education arenas. The GDS-1000B series provides serial bus analysis function with 10M long memory depth. Users can trigger, decode, and analyze frequently used I C, SPI and UART 2 serial bus and CAN/LIN bus, which is often used by automotive communications. The GDS- 000B Series oscilloscopes provide the zero key function for vertical voltage scale adjustment, horizontal time scale adjustment and trigger level adjustment. When processing complicate waveform adjustment and observation, engineers often require the zero key function to start a new measurement, adjust waveform or reset trigger level. The zero key function can reduce time in turning control knobs that is a great benefit for engineers.

Surveying Equipments

  1. Global Positioning System (GPS):
    • Hand Held GPS Receiver
    • DGPS
  2. RTK Systems
  3. Total Station
  4. Surveying & Mapping Software
  5. Electronics Theodolite
  6. Laser Theodolite
  7. Optical Theodolite
  8. EDM
  9. Digital Level
  10. Optical Level
  11. Transit Level
  12. Automatic Levelling Machine
  13. Plane Table
  14. Drafting & Mapping Equipments
  15. Distance Measuring Equipments:
    • Laser Distance Meter
    • Distance Measuring Wheel
    • Digital Distance Wheel
    • Hand Tally
  16. Surveying Tools:
    • Surveying Arrow
    • Tilting Surveying Umbrella
    • Optical Square
    • Hand Level
    • Topographic Abney Level etc.
  17. Compass:
    • Digital Compass
    • Pocket Compass
    • Height Measuring Compass
    • Optical Compass
  18. Accessories:
    • Aluminum Tripod
    • Levelling Staff
    • Levelling Rod
    • Prism Set
    • Prism Stand
    • Bubble
  19. Micro Gravity
  20. Cesium Magnetometer &
  21. Borehole Gravity
  22. Marine Gravity
  23. Air Borne Geo
  24. Micro Gravity Meters