Sensaphone IMS-1000, Руководство пользователя, Страница: 93 / 112

Chapter 5: IMS-1000 Sensors
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IMS-4851 4–20mA Bridge
Installation Instructions
Introduction
The IMS-1000 4–20mA Bridge allows you to
connect a 4–20mA transducer to your IMS-1000.
The 4–20mA Bridge features optical isolation
between the input and the IMS-1000, which ensures
trouble-free operation and safety. The electrical
connection between the bridge and IMS-1000 is
made via RJ-45 patch cable (not included). The
bridge may be mounted either on a wall or rest on
the floor.
Package Contents
(1) IMS-4851 4–20mA Bridge
(2) Plastic drywall anchors
(2) #6 Metal tapping screws
(4) Rubber feet
Wiring the Transducer
Connect your 4-20mA transducer to the terminal block labeled Input as shown in the figure below.
Insert 1 /
2
" stripped bare wire into the slot and tighten the screw. The Current Flow light will glow
steadily when current is flowing into the bridge from the transducer. Note that a 4-20mA transduc-
er typically requires you to have an external DC power supply for the transducer. A 24VDC supply
is available from Sensaphone (FGD-0053).
Figure 1: 4–20mA transducer wiring to IMS-4851 Terminal Block
Cabling
The 4-20mA Bridge connects to the IMS-1000 via an RJ-45 cable (e.g. CAT5 cable). The connec-
tion from the sensor to the IMS-1000 can utilize your existing network wiring infrastructure. For
example, the bridge may be installed in another room or another floor. Connect the bridge to your
structured wiring network via an RJ-45 jack. At the other end, connect a patch cable from your
structured wiring patch panel directly to the IMS-1000 environment input.