CMR Electrical DPC200 Manual

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DPC200 PRESSURE - VOLUME CONTROL
• Ultra fine pressure or volume control
• Controls fan speed invertors and actuators
• Hand - Auto and BMS change over control
• Local or external BMS actual sensor display
• Local or external BMS position sensor display
• Internal or remote BMS set point adjustment
• Door switch control freeze with timer
• Low and High alarm thresholds and alarms
• Volt free alarm contact for remote BMS.
• Excellent repeatability
• After Sales Service is provided by CMR
• 24 month warranty
• 20 Years field application experience
GENERAL
The DPC200 was designed to provide accurate air volume and
room pressure control especially in clean room environments but
over the years it has found a multitude of uses in all kinds of control
systems. The principle of the control is simple and easily adopted
by any controls engineer. It consists of one control loop with a
number of options such as auto or manual control and remote BMS
interface. The DPC200 can be connected to any CMR external
sensor, damper motor or fan speed invertor. It provides constant air
volume control in ventilation systems or accurate room pressure
control especially in pharmaceutical production and research
areas. It has an option for local and remote alarm outputs and has
BMS and Scada monitoring systems connectivity. Full calibration
certificates traceable to National Standards can be supplied to
make the CMR control system conform to validation procedures.
REMOTE MEASUREMENT SENSORS
The Controller can read in a 0...10V signal from any CMR sensor.
The sensor actual value is displayed on an LCD Display on the front
operators panel of the DPC200. The LCD Display is normally scaled
0...100% of the 0...10V but can be scaled to different engineering
units i.e. Pa, mBar, m/s etc.
AUTO CONTROL SET POINT
A set point adjustment dial is provided for the user to select an
operating set point. The dial is available either as 0...100% or
-100%...0...+100% depending on type ordered.
CONTROL OUTPUT OPEN- OFF- CLOSE OR 0...10V/4...20mA
The DPC can drive all fast acting CMR motors which have a 24VAC
synchronous motor to drive open or close. Because of the high
speeds, the controller has all built in facilities to control in all
applications without hunting.
The DPC is also available with 0...10V output normally used for fast
acting Invertor Fan Speed Controls or specialist damper actuators.
MANUAL HAND CONTROL
A Hand-Auto switch is provided. When selecting the Hand option,
the manual set point dial is made active and the user can select a
manual operating set point to drive the invertor or damper into any
position. This is ideal for commissioning or emergency actions. The
dial is scaled to 0...100% as standard.
The actual speed of the Fan Invertor i.e. 0...100% of the Hz output or
the position of the actuator i.e. 0...100% of the damper angle is
continuously monitored. This value is available as 0...10V signal to
the BMS and the LCD display.
POWER SUPPLY
The DPC200 can be supplied for various power supplies such as
24V AC, 110V AC and 230V AC.
CMR CONTROLS
Division of C.M.RICHTER EUROPE LTD
Copyright © 2000 CMR® C.M.RICHTER EUROPE LTD
DPC200 Controller with Type 'J' display, hand-auto and Alarms
REMOTE CMR SENSORS
The DPC200 was designed to function with
all CMR measurement sensors for which
data sheets are available separately. The
most popular sensors are the DPM50
Pressure and the DPM55 air velocity or
volume instruments. The units are normally
built into a central control panel together with
the DPC200 s.
The DPMs have the advantage to provide
additional alarm contacts and a separate
4...20mA signal to independent pressure
monitoring systems. Another feature is the
large LED display which indicates the
pressures or velocities on the front panel for
the operator convenience.
also made easy as all the controls are under
the front lense of the DPM.
OTHER REMOTE CMR SENSORS
The sensors can also be mounted in the field
at any distance and the CMR P-Sensors
either in ABS or Aluminium Enclosures are
ideal for pressure control. The V-Sensors, F-
Sensors and VT-Sensors are used for air
volume control either for constant or variable
air volume applications.
CMR DAMPERS AND ACTUATORS
CMR provides a large range of dampers
either circular or rectangular with a variety of
actuators from 4 up 150 seconds rotation
speed for 0...90°. The DPC200 can control
all these actuators accurately and without
hunting. It is recommended to use CMR
dampers and actuators as the mechanical
strength and torque of the actuator is critical
when operating at very high speeds.
FAN SPEED INVERTOR CONTROL
The DPC200 is ideal to control any Fan
Speed Invertor from small to large
applications either on static pressures or fan
volumes using the CMR fan inlet ring
measuring probes. It is of great advantage
where an independent control loop is
required to provide fail safe operation. The
DPC200 can run the fan in auto or manual
mode and
the BMS.
22 Repton Court Repton Close
Basildon Essex SS13 1LN GB
Website : http://www.cmr.co.uk
All rights reserved The information is subject to change without notice
DPC200 Page 1
For External Pressure or Volume Sensors
Calibration is
provides override capability for
Tel +44 (0) 1268 287222
Fax +44 (0) 1268 287099
e-mail: sales@cmr.co.uk
DPM50/55 Sensor
P-Sensor
V- F- VT- Sensors
CMR Extract Valve
Invertor 0-100Hz
Issue GB 2 - 1 2001