Dwyer DCP200 User Manual
Bulletin E-97-M
Series DCP100A/200A Pressure Modules
Specifications – Installation & Operating Instructions
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The DCP100A or DCP200A pressure modules are designed exclusively for use with
the Dwyer
®
DCT1000 Dust Collector Timer
Controller boards 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 channel 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.
Table of Contents Page No.
1.0 Installation . . . . . . . . . . . . . . . . .2
1.1 Location . . . . . . . . . . . . . . . . . . . .2
1.2 Connections . . . . . . . . . . . . . . . . .2
1.3 Pressure Module Installation . . .2-3
1.3.1 Alarm Mode Switch Connection . .3
1.3.2 Alarm Reset Switch Connection . .3
1.3.3 Connecting the 4-20 mA loop . . .3
1.3.4 Connecting the Alarm Relay . . . . .3
SPECIFICA T IONS
Pressure Ranges: 10˝ w.c. or 20˝ w.c.
Temperature Limits: -40 to 140°F
(-40 to 60°C).
Pressure Limit: 10 psi (68.95 kPa).
Pressure Limit (differential): 10 psi
(68.95 kPa).
Accuracy: ±1.5% F.S. @ 73°F (22.8°C).
Output Signal: 4-20 mA.
Alarm Contacts: 1.5A inductive load, 3A
resistive load @ 30 VAC or 40 VDC.
Process Connections: Two barbed connections for use with 1/8˝ (3.18 mm) or
3/16˝ (4.76 mm) I.D. tubing.
Weight: 5.5 oz (155.9 g).
Table of Contents Page No.
2.0 Demand Mode using a
DCP100A/200A Pressure
Module . . . . . . . . . . . . . . . . . . . .3
2.1 High Limit Setup . . . . . . . . . . . . . .4
2.2 Low Limit Setup . . . . . . . . . . . . . .4
2.3 High Alarm Setup . . . . . . . . . . . . .4
2.4 Low Alarm Setup . . . . . . . . . . . . .4
2.5 Auto Alarm Reset Setup . . . . . . . .4
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361,U.S.A. Fax: 219/872-9057 e-mail: info@dwyer-inst.com
Phone: 219/879-8000 www.dwyer-inst.com
4-20 mA CONNECTIONS
RECEIVER
USING DCT1000
24V SUPPLY
RECEIVER
OPTIONAL
CONNECTION
SUPPLY
USING EXTERNAL
POWER SUPPLY
SUPPLY
NORMALLY OPEN CONTRACTS
MAN
ALARM
D1
ALARM
LOW
HIGH
OVR
MODE
CLN
RESET
LIMIT
COM
COM
TB3
(INTERNALLY CONNECTED)
TB1
L1
L2
SOL
COM
COM
TB2
MASTER CONTROLLER
(10 CHANNEL SHOWN)
5
8
6
7
34
9
12
OUT
DAISY
CHAIN
MASTER CONTROLLER
IN
INPUT MUST NOT BE
DAISY
CHAIN
CONNECTED
OUT
CHAIN
IN
CHAIN
TO ADDITIONAL
EXPANDER MODULES
DAISY
DAISY
10
LIMIT
4-20 MA
OUTPUT
4-20 MA
SOURCE
EXTERNAL
INTERNAL ALARM
TB4
CONTACTS
TB5
ALARM
LOAD
C3Ø4
F1
LINE
INPUT
SOLENOIDS
Fig. 1 - Switch
Connections
3.0 Pressure Module Maintenance 4
1.0 Installation
Caution: Prior to installing the
DCP100A/200A 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
DCP100A/200A pressure module. For
these conditions there are a number of
alternate Dwyer Instruments, Inc. pressure
products that can be used to meet your
application requirements, all of which can
be terminated to the Dwyer
®
DCT1000 Dust
Collector Timer Controller. 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.
1.1 Location
The system should be located in an enclosure that meets relevant safety standards
and electrical codes. There are no other
special orientation requirements as the
pressure module is not orientation sensitive.
SLAVE CHANNEL EXPANDER
(INTERNALLY CONNECTED)
SOL
L2
COM
34
12
SOLENOIDS
5
(10 CHANNEL SHOWN)
6
7
8
10
9
TB1
L1
LINE
INPUT
Care should be observed when routing the
air hoses to ensure that any potential condensation or moisture will not drain into the
sensor. Where heavy condensation is present, a drip loop or an in-line filter should be
installed to ensure long term operation.
1.2 Connections
When a pressure module is installed, the 420 mA process signal and the alarm relay
contacts are available. The circuit may be
used with the internal 24-volt power source
or with an external source. In either case,
the 4-20 mA circuit is isolated from ground
and other signals. The alarm relay contacts
are isolated, normally open contacts.
Pressure connections may be made to the
stepped hose barbs with either 1/8″ or
3/16″ I.D. tubing. The following subparagraphs describe the external switch connections. Refer to Figure 1 (above) for
switch connection illustration.
1.3 Pressure Module Installation
The pressure module is attached to the
Master Controller using integral connectors
on both units. The insertion ports for the
pressure module are located in the upper
2
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