4/2-wire mode

For measuring a resistance via the 9 available measuring ranges on 2 channels in 2- and 4-wire mode the EL3692 has 9*2*2 = 36 manufacturer calibration data, consisting of gain and offset. Accordingly, 36 user calibration entries are available for user gain and user offset.

4/2-wire mode 1:

Calibration in 2-wire mode

For the lower 3 measuring ranges (10mΩ - 10 Ω) 2-wire mode only makes sense if the connection characteristics (line lengths, contact resistances) are known exactly. In these 3 measuring ranges the EL3692 is therefore not calibrated by the manufacturer for 2-wire measurement mode.
In Autorange mode with 2-wire connection these 3 measuring ranges are therefore not used.


The 3 measuring ranges can be used through manual settings (CoE or control word). Previous user calibration by the customer is essential.

The default state of the EL3692 is 4-wire mode. In this mode the measuring current flows via terminal points 1(5) through the resistance to terminal point 3(7). The voltage measurement takes place via terminal points 2(6) and 4(8).