CAMCORP CAM-AIRO Vertical Cartridge - Manual (Page 29)

4-20 mA Connections
Receiver
Using DCT1000
24V Supply
Low
Limit
High
Limit
Pressure
Limit
Switches
+ -
Receiver
+ -
Optional Connection
Using External
Power Supply
+
Supply
-
Supply
Alarm
Load
4-20 mA
Connections
TB4
High
Limit
Com
Low
Limit
TB3
TB5
Alarm
Relay
Contacts
TB1
(Internally Connected)
Master Controller
(10 Channel Shown)
Com Com
Alarm
Mode
Man
Ovr
Dt
Cln
Alarm
Reset
TB3
Daisy Chain
In Out
Daisy Chain
In Out
Master Controller
Input MUST NOT
Be Connected
To
Additional
Expander
Modules
(10 Channel Shown)
Slave Channel Expander
Line
Input
Solenoids
Sol
Com
L1 L2 1 2 3 4 5 6 7 8 9 10
Sol
Com L1 L2 1 2 3 4 5 6 7 8 9 10
Line
Input
Solenoids
Normally Open Contacts
Current Low Limit High Limit Next
Operation Switch Switch Operation
Hold Open Open Hold
Hold or Run X Closed Run
Hold Ø Open Hold
Hold Closed Ø Run
Run Closed
≠
Run
Hold Closed Ø Run
Run
≠
Open Hold
Ø Transition from open to closed
≠
Transition closed to open
X Either open or closed
Note: If a DCP100 or DCP200 pressure module is installed
in the master controller, the switching functions on the previ-
ous page are ignored.
2.0 The Series DCP Pressure Module
The Series DCP100 or DCP200 Pressure Modules are
designed exclusively for use with the Dwyer DCT1000 Dust
Collection Board for on-demand cleaning requirements.
These series of modules are available in 10
″
w.c. [2.49 kPa]
or 20
″
w.c. [4.98 kPa] ranges, which allow for differential
process pressure measurement as indicated on the display
of the master controller. An isolated 4-20 mA readout chan-
nel is provided for remote pressure display. The 4-20 mA
output may be wired either for use with an external power
supply and indicator or using the isolated on-board 24 volt
power supply to power the loop.
Caution: Prior to installing the DCP100/200 please
review the operating specifications carefully.
Some operating systems, especially in pneumatic
conveying applications, may see static pressure or vacuum
conditions that exceed the capability of the DCP100/200
pressure module. For these conditions there are a number of
alternate Dwyer pressure products that can be used to meet
your application requirements, all of which can be terminated
to the Dwyer DCT1000 dust collection timer board. For more
information on these and other Dwyer products, please call
us at (219) 879-8000, or visit us on the web at www.dwyer-
inst.com or www.dust-controls.com.
2.1 Location
The system should be located in an enclosure that meets rel-
evant safety standards and electrical codes. There are no
other special orientation requirements as the pressure mod-
ule is not orientation sensitive. Care should be observed
Figure 1
Switch Connections
3