50
current ranges. The effective bandwidth of the current signal falls as you reach the nA and pA current
ranges. IE Stability capacitors further slow the response.
The outer shell of this BNC connector is connected to the Reference 600+’s floating ground.
Scaling on this signal is 3 V for the nominal full-scale current on the selected current range. Cathodic
currents cause a positive output voltage. If the software is auto-ranging the current-range selection, this
signal is discontinuous at each change of range.
The I Monitor BNC connector is lightly filtered
using an RLC circuit. It has a bandwidth of
approximately 3 MHz when connected to a high-
impedance input. This bandwidth is further reduced
if a coaxial cable is connected to the BNC. Its
output impedance is approximately 200 Ω in
parallel with 220 pF.
E Monitor BNC
The E Monitor BNC connector is the output of the
Reference 600+’s differential electrometer circuit.
With the exception of the filtering described below,
it is a buffered representation of the voltage
difference between the white and blue cell cable
leads. It has very high bandwidth.
The outer shell of the BNC connector is connected
to the Reference 600+’s floating ground.
The E Monitor BNC connector is lightly filtered
using an RLC circuit. It has a bandwidth of
approximately 3 MHz when connected to a high-
impedance input. This bandwidth is further reduced
Caution: The shell of the I Monitor BNC is connected to the Reference 600+’s
Floating Ground. Connection of this BNC to a piece of earth-ground-referenced equipment can
compromise the Reference 600+’s ability to float, and invalidate data collected on earth-grounded
cells.
Caution: The shell of the E
Monitor BNC is connected to the Reference
600+’s Floating Ground. Connection of this BNC
to a piece of earth-ground-referenced equipment
can compromise the Reference 600+’s ability to
float, and invalidate data collected on earth-
grounded cells.
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