Newtons4th PSM1700 - Page 102

PSM1700 PsimetriQ user manual
A-4
LCR active head
The PsimetriQ LCR active head fits onto the front of the
instrument, making connection to the output and the two
inputs, to provide four BNC connections for use with Kelvin
leads to connect to the component under test.
A cable from the active head connects to the AUX port on
the front of the PsimetriQ to allow selection of one of the
three internal shunts:
shunt
value
purpose
normal
100
general purpose,
all frequencies
high
10k
higher impedance,
low to medium frequency
very high
1M
impedance > 100k,
low frequency only
*Ensure you have enabled the “LCR Active Head” in the
AUX menu.
The active head contains high impedance buffer amplifiers
that help to reduce the effect of stray capacitance and
inductance.
The active head is usually supplied with Kelvin clip leads
but Kelvin test probes are also available for in-circuit
testing.
Part numbers
500-056
LCR active head
510-013
Kelvin clip lead set
510-014
Kelvin test probe set