In stal la tion
Terminal Connections
(
continued
)
To connect the 4 to 20mA output signal with
another unit, connect the white wire to TB1,
position 1 (CE Mark units - TB4, position 1),
labeled 4-20 mA OUT. For making output
signal connections to display devices, refer to
the specific manual for that device (figure
11).
fig ure 11
If a device other than a General Monitors
readout/relay display module is being used,
the commons, COM, of both systems must be
connected together.
The Model S214 Hydrogen Sulfide Gas
Enhanced Smart Sensor operates from a
nominal supply of +24 VDC. Primary DC
power must be provided by the customer
unless one of the following General Monitors
Modules is being used with the Model S214:
l
DT210 Readout/Relay Display Module
with Power Supply & Relay Module
l
DT230 Readout/Relay Display Module
l
TA202A Trip Amplifier Module with a
PS002
The following General Monitors Modules
provide power connections for the Model
S214, but need a customer supplied DC
source (see Appendix, section 5.4):
l
DT210 Readout/Relay Display Module
without Power Supply & Relay Module
l
DT220 Dual Channel Display Module
l
TA202A Trip Amplifier Module without a
PS002
Since the Model S214 is designed to operate
continuously, a power switch is not included,
in order to prevent accidental system
shut-down.
NOTE
:
Power must remain
disconnected until all other wiring
connections have been made.
The maximum distance between the Model
S214 and the power supply is 4500 feet (1372
meters). See the Appendix (section 5.1.3) for
cable length specifications. The cable run
should be as short as possible.
To c24VDC to the Model S214,
connect the red wire to TB1, position 7 (CE
Mark units - TB4, position 2), labeled
+24VDC. Connect the black wire to TB1,
position 6 (CE Mark units - TB4, position 3),
labeled COM (figure 12).
fig ure 12
GENERAL MONITORS
Model S214
9
