H&D 3000

H&D 3000

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  • INSTRUMENT DESCRIPTION


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INSTRUMENT DESCRIPTION


H&D 3000

Instrument options

- Sample magazines for up to 2000 samples

- Barcode scanner for Compound and Batch identification

- Additional Hardness testing heads: Shore B, C, D, DO, O, OO, OOO, Micro A, Micro D, IRHD N, M, H, L, VLRH

- Sample separation in diff erent containers

Technical specification – Hardness Shore A

Shore A in accordance with: ISO 868, DIN 53505, ASTM D2240, ISO 7619, NFT 51-174, BS 903-A26

Technical specification – Hardness IRHD N

IRHD N in accordance with: DIN ISO 48, ASTM D1415, NFT 46-003, BS 903-A26

The H&D 3000 combines two important tests in a single instrument: Hardness and density are simultaneously measured on cured rubber discs. The instrument is completely software programmable for fully automated and unattended sample processing from a 20- position sequential rotary tray. Up to 5 individual Shore A hardness readings can be taken on each sample – afterwards the weight of the sample in air as well as in a temperature compensated immersion liquid is taken. Finally the reliable measured hardness and specific gravity test results, median and mean values as well as Pass/Fail status are automatically calculated and reported.

Hardness measuring head

The motorized and weight loaded hardness measuring unit featuring an integrated alignment and a digital measurement of the indentor displacement guarantees the highest precision hardness readings on up to 5 different test points per sample. Various types of hardness heads in accordance to different international standards such as Shore A, Shore D and IRHD are available. (multiple or interchangeable confi gurations available)

Precise sample handling

Stainless steel linear, rotational and multiposition electronic / pneumatic actuators provide safe and reliable handling of test samples. Actuators are mechanically separated into two groups: one for dry and one for wet samples to avoid any cross-contamination of the samples prior to weighing in the immersion liquid.

Integrated pump circuits

Ensure that the level of the density liquid in the dip tank is carefully controlled. After each density test, an adjustable amount of liquid is automatically renewed, keeping the density liquid fresh and in good condition. Also the pumps can be used to automatically fill, empty and change the density liquid in less than 20 seconds.

Endless rotary tray magazine

The rotary sample tray allows continuous operation of the machine, totally avoiding any
unproductive time. The testing area is separated by a supervised transparent safety door and covers all around the machine.

Hydrostatic weighing

Density / Specific gravity is determined by using the “weight in air” and “weight in water” methods. The H&D 3000 features two integrated weighing stations. After weighing the sample in air on the first weighing station, and placing the sample on the second weighing station, a user-defined number of wetting cycles can be programmed to remove any air bubbles around the sample. Afterwards the weight is taken. Simultaneously, the temperature of the density liquid is measured and used as a correction for density calculation.

All readings are rapidly taken by a precise weighing system based on a standard analytical precision scale, minimizing the possibility of water absorption by the sample.

Sample removal

All test samples are automatically removed after being tested and put into a separate container on the lower left side of the instrument. This ensures that rotary tray for fresh samples never gets contaminated with the liquid used for density testing. This ensures the highest accuracy and precision. Optionally, samples can be separated into 2 containers for passed and failed specimens.


TECHNICAL SPECIFICATION


Samples

Cured rubber discs

Sample diameter

30 - 45 mm

Sample thickness

5 - 8 mm

Sample capacity

Continuous rotary sample tray with 20 sample capacity (Optional sample trays up to 2000 samples are available)

Data Interface

Ethernet (10/100 MBit), USB (int.), CF card (int.), RS232 (opt.)

Power supply

100 - 230V, 50/60 Hz + N + PE, Single phase, about 1 Amps

Dimensions (H x W x D)

600 mm x 650 mm x 680 mm

Instrument options

- Sample magazines for up to 2000 samples - Barcode scanner for Compound and Batch identifi cation - Additional Hardness testing heads: Shore B, C, D, DO, O, OO, OOO, Micro A, Micro D, IRHD N, M, H, L, VLRH - Sample separation in diff erent containers

Technical specification - Density

Test method

Hydrostatic weighing according ISO 2781, ASTM D1817

Measurement range

< 1.0 g/cm³ to 2.8 g/cm³

Immersion Fluid Temperature Measurements

Standard

Technical specification - Hardness Shore A

Test method

Shore A in accordance with: ISO 868, DIN 53505, ASTM D2240, ISO 7619, NFT 51-174, BS 903-A26

Indenter

Hardened steel rod Truncated 35° cone 0.79 mm diameter

Measurement range

0 - 100 Shore A

Pressing force / load

Contact pressure: 12.5 N Spring Force: 8.065 N

Resolution

0.1 Shore

Technical specification - Hardness IRHD N

Test method

IRHD N in accordance with: DIN ISO 48, ASTM D1415, NFT 46-003, BS 903-A26

Indenter

Spherical Ball 2.50 mm diameter

Measurement range

0 - 100 IRHD

Pressing force / load

Preload: 0.29 N for 2 Seconds Main load: 5.4 N for 1-99 Seconds

Resolution

0.1 IRHD

Precise sample handling

Hardness measuring head

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