AMC VersaTox, Инструкция по эксплуатации

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13
Wiring
AMC VersaTox
1-800-465-5777
www.armstrongmonitoring.com
3156502A
AIR FLOW
3.62"
0.88"
1.81"
Ø0.437
DIRECTION
ADD DUCSEAL
AIR FLOW
DIRECTION
SIDE VIEW
BOTTOM VIEW
MUST FACE THE AIR FLOW
NOTE: THE OPEN SIDE OF THE TUBE
FIGURE 4-3 Duct Mounting Option
4.2 WIRING
The AMC-VersaTox has two main wiring systems: the monitor and power supply wiring and the
relay wiring systems.
A two conductor, shielded cable is recommended to transmit the 4-20mA signal from the AMC-
VersaTox sensor/transmitter to the monitor. In the 2-wire version, the same wire pair is used for
both signal and power due to the low power current loop design of the AMC-VersaTox. For best
signal transmission and maximum noise rejection, it is recommended to run the cable through
steel conduit (the cable shield must be chassis grounded at the monitor or power supply).
4.2.1 MONITOR AND POWER SUPPLY WIRING
The AMC-VersaTox has different power inputs and in turn has different power and signal wiring
schemes. The following sections describe each of these schemes.
4.2.1.1 DC Transmitter (1 board) to AMC Monitor
The simplest version of the AMC-VersaTox is the 2-wire transmitter with optional display. The
AMC-VersaTox sensor/transmitter should be connected to an AMC monitor, as shown in the
following figure, by a twisted pair shielded cable for the conduction of the 4-20 mA signal.