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Power Supply & Signal (4-20mA) cable connections will be on the
Right hand side of processor board:
After removing the transmitter glass window cover and Top Processor
board, go for the power supply & 4-20mA signal wire connections as
given below.
Locate 3 pin Green connector CN7 on the bottom board. Pull cable
into the enclosure through the cable gland on the right hand side
of the enclosure as shown in the figure 4.
Connect 3 wires as following:
Positive Supply
(+24V)
: +24 VDC to the labeled terminal.
Signal
(
4-20mA
)
:
4-20mA loop signal to the labeled terminal
Negative Supply
(AGND)
: Ground wire to the labeled terminal
Note: To avoid radio frequency interference (RFI), the shield
(including Mylar) must be grounded. Simply tying a bare drain wire
to ground does not ground a shield. Keep a shield as short as
possible, tie the shield to the external grounding screw. Also tie
any unused wires to the Ground.
Note:
➢
3-wire connection shall be
done as below (CN7)
1.
+VE (24V Dc)
2.
4-20mA (sourcing)
3.
NC
4.
-VE (GND)
