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OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords 
our customers the latest in technology and engineering.

OMEGA is a trademark of OMEGA ENGINEERING, INC.

©  Copyright  201

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  OMEGA  ENGINEERING,  INC.  All  rights  reserved.  This  document  may  not  be  copied, 

photocopied,  reproduced,  translated,  or  reduced  to  any  electronic  medium  or  machine-readable  form,  in  whole  or  in 
part, without the prior written consent of OMEGA ENGINEERING, INC.

FOR 

WARRANTY

 RETURNS, please have the 

following information available BEFORE contacting 
OMEGA:
1.  

Purchase Order number under which the product
was PURCHASED,

2.  

Model and serial number of the product under 
warranty, and

3.  Repair instructions and/or specific problems 

relative to the product.

FOR 

NON-WARRANTY

 REPAIRS, consult 

OMEGA for current repair charges. Have 
the following information available BEFORE 
contacting OMEGA:
1.  Purchase Order number to cover the COST 

of the repair,

2.  Model and serial number of the product, and
3.  Repair instructions and/or specific problems 

relative to the product.

RETURN REQUESTS/INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. 
BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED 
RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID 
PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return 
package and on any correspondence.

The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent 
breakage in transit. 

 

WARRANTY/DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a 
period of 

13 months

 from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month 

grace period to the normal 

one (1) year product warranty

 to cover handling and shipping time. This 

ensures that OMEGA’s customers receive maximum coverage on each product. 

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s  Customer Service 
Department will issue an Authorized Return (AR) number immediately upon phone or written request. 
Upon examination by OMEGA,  if the unit is found to be defective, it will be repaired or replaced at no 
charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, 
including but not limited to mishandling, improper interfacing, operation outside of design limits, 
improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of 
having been tampered with or shows evidence of having been damaged as a result of excessive corrosion; 
or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating 
conditions outside of OMEGA’s control. Components in which wear is not warranted, include but are not 
limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However, 
OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for 
any damages that result from the use of its products in accordance with information provided 
by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by the 
company will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR 
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF 
TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY 
AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF 
LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total liability of 
OMEGA with respect to this order, whether based on contract, warranty, negligence, 
indemnification, strict liability or otherwise, shall not exceed the purchase price of the 
component upon which liability is based. In no event shall OMEGA be liable for 
consequential, incidental or special damages.

CONDITIONS:  Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic 
Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical 
applications or used on humans. Should any Product(s) be used in or with any nuclear installation or 
activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility 
as set forth in our basic WARRANTY/DISCLAIMER language, and, additionally, purchaser will indemnify 
OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the 
Product(s) in such a manner.

Summary of Contents for DPU91-BC SERIES

Page 1: ...e mail info omega com For latest product manuals www omegamanual info Shop online at omega com User sGuide DPU91 BC SERIES Batch Controller System TM...

Page 2: ...cifications without notice Servicing North America U S A Omega Engineering Inc Headquarters Toll Free 1 800 826 6342 USA Canada only Customer Service 1 800 622 2378 USA Canada only Engineering Service...

Page 3: ...ow sensors models FMG 3000 and FMG 550 insertion magmeters and models FP 5070 and FP 5060 in line flow sensors Your new DPU91 BC Batch Controller system includes the following items Omega DPU91P Trans...

Page 4: ...OMEGA DPU91 BC Batch Controller System 4 54 10 mm 2 13 in 91 44 mm 3 60 in 29 97 mm 1 18 in 8 13 mm 0 32 in 99 06 mm 3 90 in 99 06 mm 3 90 in DPU91 BC Batch Controller System 4 Dimensions...

Page 5: ...ile DIN punch or jigsaw suitable for cutting panel opening to within 1 mm 0 04 in tolerance DIN punches are available and recommended for creating clean precise openings quickly and easily in most ins...

Page 6: ...tch Module Convert a DPU91P Transmitter Generation II or later to a DPU91 BC Batch Controller System by plugging in DPU90 BCM Batch Module Optional Module Wiring Wire an external button or keypad cust...

Page 7: ...lly Closed Terminals 7 10 Digital S3 L Frequency Input Sensor wiring DPU90 COMM wiring The DPU91 BC requires regulated 10 8 to 35 2 VDC 24 VDC nominal from an external power supply Maximum current dra...

Page 8: ...or keep one hand touching a properly grounded pipe or other properly grounded piece of metal when handling modules CAUTION Avoid Electrostatic Discharge ESD All wiring connections to the DPU91 BC are...

Page 9: ...ection Frequency FMG 550 Black Red Shield White V DATA GND SHLD 3 4 Frequency S L 3 3 4 FMG 3000 FMG 3000 Blind Magmeter Output Selection Jumpers Connect the silver shield wire to earth ground in case...

Page 10: ...lack Red PWR PWR Loop Loop Common Start Stop Resume Inhibit Wire an external input as override for preventing batch from starting Connect an external button or keypad not supplied to remotely control...

Page 11: ...WR Loop Loop OC OC Pull Up Resistor Power Supply 9 WR 9 Gnd PLC Gnd Input If an external device needs logic 0 logic LOW input when the Open Collector is de energized in an NPN configuration set R1 NOR...

Page 12: ...l operation and will go ON when relay energizes according to DPU91 Relay settings BATCH Batch Activates relay while batch is running 0 100 Time Relay energized Relay de energized Batch Percentage MISS...

Page 13: ...ill not automatically resume when the flow decreases below the hysteresis level User interaction is required to resume the batch Hysteresis Time Process High Setpoint Relay energized Relay de energize...

Page 14: ...e or filter change Relay energized Relay de energized TWO STG Two Stage This function is designed to prevent overfilling or to minimize water hammer Both the mainline relay and the bypass relay are en...

Page 15: ...nd RIGHT keys Press both together to enable manual batch or top off a previous batch The valve will open as long as the keys remained pressed ENTER key Access menus Save changes 15 Operation ENTER Ope...

Page 16: ...he item for editing 4 Press or to edit the value selection 5 Press ENTER to store the new value selection 6 Press to select another menu item Repeat steps 3 5 as required 7 Press again to return to no...

Page 17: ...tch Output Current displays the output loop current in milliamperes mA Source Volume displays the calculated remaining source volume Shown if SOURCE VOLUME is ON Relay Status displays relay status for...

Page 18: ...s down the and keys Note A manual batch will cancel a batch in the RESUME CANCEL state Source Volume shows the calculated remaining source volume Displays if SOURCE VOLUME is ON Reset source volume wi...

Page 19: ...option Choose ON OFF or PWD password Default OFF INPUT Menu CAL Menu K Factor Set K Factor pulses per unit volume according to Flow Sensor manual Min 0 0001 max 999999 Cannot be zero Default 60 0000...

Page 20: ...onnected to the DPU91 The display value represents the precise current output Adjustment limits 19 00 mA to 21 00 mA Default 20 mA Test Loop Press or to manually output a current value from 3 6 mA to...

Page 21: ...flow value to activate relay Set Hysteresis Prevents the system from chattering around the set point In HI FLOW Mode Relay is energized at Set Flow value and will be de energized at Set Flow value mi...

Page 22: ...ption see discussion on page 12 Main Relay Select ADVANCED Mode only Selects the specified relay as the main relay for two stage valve control This relay will be de energized when the batch volume rea...

Page 23: ...nent Totalizer Default YES Source Volume Selects SOURCE VOLUME display option Choose ON or OFF Default OFF Volume Reset If SOURCE VOLUME is ON set the reset value for the source volume Default 1000 GA...

Page 24: ...annot be zero Volume entered during Volume Calibration is too low to calculate a K Factor K Factor error during volume calibration Value cannot be zero At least one batch must have a non zero volume B...

Page 25: ...d returns to VOLUME CAL 5 Press ENTER to accept the new K Factor DPU91 displays SAVING or press keys simultaneously to escape without saving and return to Enter Volume NOTE In Advanced Mode the Batch...

Page 26: ...elay of the sensor electronics Minimum update period is 100 ms System response is tempered by the display rate Electrical Requirements Power to Sensors Voltage 4 9 to 5 5 VDC 25 C regulated Current 20...

Page 27: ...mS nominal Short circuit and reverse polarity protected Adjustable span reversible Error Condition Selectable error condition 3 6 or 22 mA or NONE Actual update rate Determined by sensor type Test Mo...

Page 28: ...ion DPU91 BC Batch Controller System DPU91P DPU91 Panel Mount Transmitter DPU90 R Relay Module 2 DCR dry contact relays DPU90 BCM Batch Module Accessories DPU90 CT PC COMM Configuration tool DPU90 WM...

Page 29: ...29 OMEGA DPU91 BC Batch Controller System...

Page 30: ...OMEGA DPU91 BC Batch Controller System 30...

Page 31: ...A if the unit is found to be defective it will be repaired or replaced at no charge OMEGA s WARRANTY does not apply to defects resulting from any action of the purchaser including but not limited to m...

Page 32: ...Air Velocity Indicators Turbine Paddlewheel Systems Totalizers Batch Controllers pH CONDUCTIVITY pH Electrodes Testers Accessories Benchtop Laboratory Meters Controllers Calibrators Simulators Pumps I...

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