Test Accessories 4-Wire Short Block for High Resolution DMM Calibration

4-wire Kelvin Short Block, zero-volt junction calibration kit for HP & Keithley desktop multimeters.(NOT originally manufactured by keithley & HP)

Applys to a variety of desktop multimeters, such as HP 34401, HP 34461, HP 3457, HP 3458, HP 3458, HP3468, HP3478, Keithley 2000, Keithley 2015,
and Keithley 2001 2002 2010 2016 etc.

Two types of boards with different sizes for matching various multimeter models. Please choose the correct type (Type A or B) according to your
multimeter’s model when placing an order.

Type A: for Keithley 2000, HP 34401 34461 … etc.

Type B: for HP 3468 3478 3457 3458 … etc.

This calibration block is made of the PCBs with immersion gold process, the copper-plated banana plugs, and the crimped gold-plated nuts. These
gold-gold contacts will evidently eleminate the low thermal potential.

Note: Please warm up your instrument for a few hours before calibration, it is critical.When the Short Block is plugged in your instrument, it is
enssential to wait for a period of time to balance the heat before proceeding to the next step.

Watch Out for Those Thermoelectric Voltages! – Fluke Calibration:

http://download.flukecal.com/pub/literature/p18-21.pdf