DCT1000 - Dwyer Instruments, Inc.
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1. module into their slots e Always install and service this device with the power off and a lockout installed if required Hot plugging the pressure mod ule into an operating system may damage the system or cause the calibration parame ters to be erased Caution Do not force the module into the connectors Forcing the insertion may damage the con nectors Properly aligned the module should snap into place PRESSURE MODULE ALIGNMENT CHANNEL PINS A Q LONG PINS semen mou 1 Z txoennenns orcun MODULE ONLY BOARD fC 0 Of Cj 0 ocd INSERT LOCKING PINS UNTIL THEY SNAP FIRMLY IN PLACE 1 3 1 Alarm Mode Switch Connection The auto alarm reset is controlled by the alarm mode switch connection To enable the auto alarm reset the alarm mode input must be connected to a common connec tion A jumper may be used when auto alarm reset is always active A switch may be used if there are times that the auto alarm reset must be disabled The switch must be an isolated contact and wired such that no connection is made between either of the wires and ground 1 3 2 Alarm Reset Switch Connection The alarm may be reset either by pressing the Alarm Reset button on the control panel or by an external switch connected between the alarm reset terminal and one of the common terminals The alarm reset will only operate if the pressure module is installed an2. zero and the pres sure module calibration pressure Normally the High Limit should be above the Low Limit If however the High Limit pressure is set below the Low Limit the cleaning cycle will begin when the High Limit is exceeded and stop when the pressure falls below the High Limit The Low Limit in this case will have no effect Pressing both Up and Down buttons simultaneously and holding for about four seconds will restore the factory setting for High Limit to 5 0 w c 1 24 kPa 2 2 Low Limit Setup The operation of the Low Limit mode is identical to the High Limit mode except that the default Low Limit pressure is 3 0 w c 0 75 kPa The upper setable value is the calibration pressure of the pressure module and the lower limit is zero Press the Select button until the Low Limit indicator is illumi nated Use the Up and Down controls to set the limit to the desired setting Pressing both Up and Down buttons simultaneously and holding for about four seconds will restore the factory default 2 3 High Alarm Setup The operation of the High Alarm Setup is identical to the High and Low Limit Setup The High Alarm default is 0 0 w c The upper setable value is the calibration pres sure of the pressure module and the lower limit is zero Press the Select button until the High Alarm indicator is illuminated Use the Up and Down controls to set the limit to the desired setting Pressing both Up and Down buttons simultaneo
3. Bulletin E 97 M Series DCP100A 200A Pressure Modules Specifications Installation amp Operating Instructions 1 13 16 e 46 04 I 25 40 141 16 1 2 42 86 1 12 70 B 7O MODEL DCPIOOA 2 7 16 RANGE 0 20 IN H20 61 91 MAX OVERPRESSURE 10 PSI CALBRATION MADE N USA Dayer The DCP100A or DCP200A pressure mod ules 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 indicat ed on the display of the master controller An isolated 4 20 mA readout channel is pro vided 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 00eeaae 2 tl Location 0008 2 1 2 Connections 0 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 DWYER INSTRUMENTS INC P O BOX 373 MICHIGAN CITY INDIANA 46361 U S A SPECIFI
4. CATIONS 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 con nections 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 00ceeeeeeueaee 3 2 1 HighLimitSetup 4 2 2 Low Limit Setup 4 2 3 HighAlarm Setup 4 2 4 Low Alarm Setup 4 2 5 Auto Alarm Reset Setup 4 Phone 219 879 8000 Fax 219 872 9057 www dwyer inst com e mail info dwyer inst com NORMALLY OPEN CONTRACTS L sm H Ey 4 20 mA CONNECTIONS fire t ou EN USING Der 000 p aavsueey kio cc O BBE MASTER CONTROLLER Tow E Comecon USING EXTERNAL POWER SUPPLY TAF LOAD MASTER CONTROLLER INPUT MUST NOT BE CONNECTED jis TO ADDITIONAL EXPANDER MODULES LIN
5. E meut SOLENOIDS Fig 1 Switch SLAVE CHANNEL EXPANDER Connections Ba UNE meut SOLENOIDS 3 0 1 0 Caution Prior to installing the DCP 100A 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 infor mation on these and other Dwyer prod ucts please call us at 219 879 8000 or visit us on the web at www dwyer inst com or www dust controls com Pressure Module Maintenance 4 Installation 1 1 Location The system should be located in an enclo sure that meets relevant safety standards and electrical codes There are no other special orientation requirements as the pressure module is not orientation sensitive 2 Care should be observed when routing the air hoses to ensure that any potential con densation or moisture will not drain into the sensor Where heavy condensation is pre sent a drip loop or an in line filter should be installed to ensure long term operation 1 2 Connections When a pressure modul
6. d the pressure has returned to a normal condition 1 3 3 Connecting the 4 20 mA loop The pressure module provides an isolated 4 20 mA output which may be used to remotely monitor the differential pressure across the dust bags or cartridges The connection is made on the master control module at the terminal block designated for this signal The connection is a 2 wire con figuration with the option of using either an external 15 to 35 VDC power source or using the internal 24 VDC source 1 3 4 Connecting the Alarm Relay With the pressure module installed a relay contact is provided for controlling an exter nal alarm This relay is a single form A con tact It is activated when either the high alarm threshold is exceeded or the pres sure drops below the low alarm threshold The connection is made at the two pin con nector TB5 2 0 Demand Mode using a DCP100A 200A Pressure Module The DCT1000 system may be configured to be a self contained on demand control sys tem with the installation of the DCP100A 200A pressure module When this module is installed the master controller detects it and automatically sets the system to an on demand mode enabling features associat ed with the pressure sensor The following subparagraphs describe the setup and operation of these pressure related features 3 2 1 High Limit Setup The High Limit Setup sets the pressure at which the cleaning cycle will begin This value may be between
7. e is installed the 4 20 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 subpara graphs describe the external switch con nections 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 left quadrant of the DCT1000 Master Controller The pressure module can be removed by compressing the retaining clips on each end of the module then gently pulling the module out of the master con troller board When inserting the module the following procedure should be adhered to insure proper installation e Examine the bottom of the pressure mod ule and note the orientation of the connec tors e Align the module so that these connectors match the connector receptacles on the controller board e Orient the module with the four alignment pins over their respective mounting holes e Gently press the module into the connec tors and snap the retaining clips on either end of the
8. ntrols com Thank you for choosing Dwyer Instruments Copyright 2009 Dwyer Instruments Inc DWYER INSTRUMENTS INC P O BOX 373 MICHIGAN CITY INDIANA 46361 U S A Printed in U S A 8 09 FR 443123 01 Rev 2 Phone 219 879 8000 Fax 219 872 9057 www dwyer inst com e mail info dwyer inst com
9. usly and holding for about four seconds will restore the factory default 2 4 Low Alarm Setup The operation of the Low Alarm Setup is identical to the High and Low Limit Setup The Low Alarm default is 0 0 w c The upper setable value is the calibration pres sure of the pressure module and the lower limit is zero Press the Select button until the Low Alarm indicator is illuminated Use the Up and Down controls to set the limit to the desired setting Pressing both Up and Down buttons simultaneously and holding for about four seconds will restore the facto ry default 2 5 Auto Alarm Reset Setup The Auto Alarm Reset Setup mode allows the auto alarm reset time to be selected This value may be set between zero and 255 seconds The factory default value is five seconds When the auto alarm reset is enabled by shorting the auto alarm reset ter minal to a common terminal the alarm will be reset after the pressure returns to the normal range and the selected timeout peri od has expired 3 0 Pressure Module Maintenance The pressure module should require very lit tle maintenance under normal operational conditions However periodic calibration may be desirable to assure accuracy of the readings The module may be removed and returned to the factory for calibration Still need help Please feel free to contact one of our customer service representatives at 219 879 8000 or visit us on the web at www dwyer inst com or www dust co
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