PORTS & JUMPERS (EI-2000S-CPU BOARD)
P1
BDM interface
Factory use only – Do not connect anything to this header.
P2 (J7)
Display interface
This connects, via ribbon cable, to the display, which is the
LCD1602-EI.
P3 & P4
Expansion board
interface
Both headers are used to connect to expansion boards,
which are the EI-2000-IO and EI-2000-EXP.
J1 & J2
Sense connections Local or remote sense selection shunts.
J3
Instrument
selection
This selects an EI-1000, EI-2000 or EI-4000 instrument, see
below.
This is set at the factory, and if this jumper is not
set properly, the meter will not function.
J4
RS485 terminator
resistor
Install a shunt to connect the 120 ohm terminator resistor to
the RS485 A & B lines.
FUSE
The fuse is a ½ ampere, 250VAC, 5x20mm, time-lag fuse.
Do not use any other rating.
VOLTAGE SELECT SWITCH (S2)
The voltage selection switch, located on the EI-2000S-CPU, selects the 115V or 230V range.
EI-4000 METER SELECTION HEADER SHUNT (J3)
Connect J3-4 and J3-2 to select an EI-4000 meter; the display is the
LCD1602-EI. This shunt, located on the EI-2000S-CPU board, is set by the
factory and should not be altered for any reason.
Invalid shunt positions:
E SENSE (EI-2000S-CPU)
J1/J2 REMOTE SCAL
Single channel EI-400
e remote sense conn
error of the cable voltage drop, mi
hermal errors of the connections and wire
temperature coefficients. The remote sense must be used if intrinsically-safe barriers are
being used. Do not use remote sense for EI-4000 multi-channel applications.
Disabled (local sense)
Enabled (remote sense)
0 meters can utilize th
nute t
ections. This minimizes the
NOTE: DO NOT SELECT THE VOLTAGE WHILE THE METER IS POWERED!