resistance boxes
Ultratest offer a range of decade resistance boxes (ZX series) to suit a variety of applications and budgets. They are housed in robust metal cases and each resistive element undergoes a controlled ageing process to produce the very highest stability and also a low temperature coefficient. The very popular ZX74E is widely used for resistance thermometer simulation and resistance bridge networks.
Ultratest’s high resistance HR20/21 decade boxes are designed for checking and calibration of insulation testers at voltages of up to 5000 VDC with the HR20 providing up to 9 decades of resolution. Up to 1Tohm can be measured.
Ultratest’s high resistance HR20/21 decade boxes are designed for checking and calibration of insulation testers at voltages of up to 5000 VDC with the HR20 providing up to 9 decades of resolution. Up to 1Tohm can be measured.