RKI Instruments Beacon 410 User Manual
Page 24
20 • Wiring the Beacon 410 Gas Monitor
Beacon 410 Gas Monitor Operator’s Manual
Connecting Recorders
Perform the following procedure to connect an analog signal recording device to the
Beacon 410. The output at the recorder output terminals for each channel is a 4 - 20 mA
signal that corresponds to the detection range of the detector head connected to that
Beacon 410 channel. Be sure to read the recording device’s operator’s manual before
installation and follow all wiring procedures and recommendations made by the recording
device’s manufacturer.
1.
Turn off or unplug incoming power to the Beacon 410.
2.
Open the housing door, then place the power switch in the OFF position.
CAUTION: The power switch does not control DC input power.
3.
Locate the recorder output terminals on the right end of the detector/transmitter
terminal strips. See “Beacon 410 Gas Monitor Component Location” on page 5 to
assist you in locating the recorder output terminals. They are labelled 4 - 20 mA
OUTPUT +
and 4 - 20 mA OUTPUT -.
4.
Install an appropriately rated cable bushing or conduit in an unused conduit hub on
the bottom of the Beacon 410 housing.
5.
Guide the wiring from the recording device through the selected conduit hub on the
bottom of the Beacon 410 housing.
6.
Connect the leads from the recording device to the recorder output terminals of the
selected active channels as shown in Figure 12 below.
Figure 12: Recorder Output Wiring
Connecting RKI Detector Heads
When a Beacon 410 is ordered from the factory, any detector heads that were ordered
with it are already setup on particular channels of the Beacon 410. If you are adding an
RKI detector head to your existing system, you will need to setup one of the unused
channels to operate the detector head. See “Selecting the Detector Head Input Type and
Gas Setup” on page 41 for instructions to setup a new channel.
Perform the following procedure to connect an RKI detector head to the Beacon 410.
1.
Turn off or unplug power to the Beacon 410.
2.
Open the Beacon 410 door and place the power switch in the off position.
CAUTION: The power switch does not control DC input power.
3.
See the detector head operator’s manual for instructions on how to connect the
Recorder Output Terminals From a
Detector/Transmitter Terminal Strip,
Typical of 4
4-20 mA
OUTPUT
4 - 20 mA Input
Recording Device
500 Ohms Impedance
Maximum