The ERWEKA TBH 425 WTD is based on the TBH 425 TD. In addition an external Sartorius or Mettler analytical balance with windshield (20.0 mg to 50.0000 g; accuracy ± 0.1 mg; Sartorius balance with in-built calibration weight) may be connected to the unit. Before testing the other parameters, the sample is placed manually onto the balance, the weight is determined and transferred to the units’ electronics.

Standard delivery range is without balance; different brands and types of balances are optionally available.

The TBH 425 series is available for measurement of hardness TBH 425, hardness and diameter TBH 425 D, hardness/diameter/thickness TBH 425 TD, hardness/diameter/ thickness/weight TBH 425 WTD.