Honeywell DR4500A, Product Manual, Page: 49 / 266

Installation - Input Wiring Procedures
Release M DR4500A Classic Series Circular Chart Recorder With or Without Control Product Manual 35
April 2017
4-20 mA inputs and transmitter power
You can wire input 1 or 2 for 4–20 mA actuations.
The polarity for inputs #1 and #2 is identical.
The prerequisites are:

Model Number - Table 1 = 1X00, X100
ATTENTION
Connector J11 on the main processor printed circuit board can be used to provide 24 Vdc
power to up to two field transmitters (without power) which are supplying the 4
–20 mA input
signals to the recorder (1.2W @ 24 Vdc = 50 mA available).
Refer to Figure 2-14 and follow the procedure in Table 2-13 to wire 4-20 mA inputs.
Table 2-13 4-20 mA input wiring
Step Action
1 Open the recorder door. Loosen the captive screw in the chart plate and swing the plate out.
2
Be sure that the jumper MA/W1 is installed in the position labeled “MA”; this connects an
internal 250-ohm resistor across the 4-20 mA input terminals on J2. (Refer to Figure 2-14 for
location of jumper.)
3 Locate jumper W3 and make sure the jumper is in the proper position for your input type (see
Figure 2-14).
4 Locate connector J2 on the printed circuit board for input 1 (refer to Figure 2-14).
5 Remove the unwired plug from J2.
6 Run the input wires through the desired knockout - DO NOT bundle them with the power wires.
7 For CE Mark conformity:

Install the ferrite filter as shown in Figure 2-11.

Install the capacitors as shown in Figure 2-14.
8 Strip insulation from the end of each wire.
9 Loosen the screws in plug J2 terminals and position the plug as you would to plug it into J2.
10

For transmitters with power:
Insert the wires into the appropriate screw clamps and tighten the screws to secure the
wires.

For transmitters which require power:
Remove the unwired plug from J11 then wire the transmitter power to J11 and the
input to J2. Tighten the screws in the plugs to secure the wires.
11 Insert the wired plug into J2 and J11 as applicable.
12 Repeat steps 2 through 11 for input 2 printed circuit board as applicable.