Omega Marine Instruments DPG5000 User Manual

User’s Guide  
DPG5000  
PRESSURE GAUGES  
M3366/0606  
 
M3366/0606  
DPG5000  
Table of Contents  
Warranty/Disclaimer.........................................................................2  
Return.Requests/Inquiries.................................................................3  
Instructions.......................................................................................4  
. Zero.Trimming................................................................................4  
. Use.of.Auto-Tare.Feature...............................................................4  
. Battery.Replacement......................................................................4  
. Re-Calibration...............................................................................5  
. Use.Of.Peak-Hold.Feature.(Optional)...........................................5  
. Analog.Output.Option.(0.To.2.VDC).............................................5  
. 4-20.mA.Transmitter.Option..........................................................6  
. External.Power.(24.VDC).and.  
. 0.to.5.VDC.Analog.Output.Option.................................................7  
. External.Power.Without.Other.Options.........................................7  
 
DPG5000  
M3366/0606  
• 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 which wear are not warranted, including but not limited contact points,  
fuses, and triacs.  
OMEGA is please 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 it will be as specified and free of defects.  
OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF  
ANY KIND WHATSOEVER, EXPRESS 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 even 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.  
 
M3366/0606  
DPG5000  
• 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 OMEGAS 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 Returns  
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 problem relative to the product.  
Non-Warranty Repairs  
For NON-WARRANTY REPAIRS, consult OMEGA for current repair  
charges. Have the following information available BEFORE contact 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 problem relative to the product.  
3
 
DPG5000  
M3366/0606  
• Instructions  
NOTE:.All.units.are.factory.calibrated.prior.to.shipment.  
1. Zero Trimming  
NOTE:.Some.units.are.equipped.with.zero.“knob”.  
If it becomes necessary to re-adjust the “Zero” on the display, this can be  
accomplished by turning the trimpot marked “Z” just to the left of the On/Off  
push button. On the DPG5000 there is either a zero adjustment knob or a black  
nylon cover screw. If the gauge has a cover screw, it is necessary to remove the  
cover screw to access the zero adjustment pot. An ideal zero is indicated by a  
reading of 000 with an intermittently flashing “-” sign.  
NOTE:.A.jewelers.screwdriver.or.an.eyeglass.repair.screwdriver.(supplied).  
is.a.suitable.instrument..Do.not.make.changes.to.the.Span.adjustment.(the.“S”.  
pot.to.the.right.of.the.push.button).as.part.of.the.zero.trimming..The.Span.should.  
only.be.changed.as.part.of.the.re-calibration.of.a.gauge.with.a.known.pressure.  
source.  
2. Use of Auto-Tare Feature  
When the DPG5000 is first turned on you will notice that the display flashes  
for the first 4 seconds. If the On/Off button is pushed and held during this  
period, any existing reading will be re-set to zero. This allows the user to “Tare-  
Out” a starting weight in hydraulic weighing applications. To remove the Tare  
feature turn the unit off and back on again and do not push the On/Off button  
during the flashing period.  
3. Battery Replacement (9 Volt Type)  
The battery can be replaced simply by removing the single screw at the top of  
the battery door. Remove the old battery, unplug the cable connector and replace  
with Eveready type 216 or equivalent. Replace the battery door and secure with  
the self-tapping screw. (Do not overtighten)  
NOTE:.For.best.accuracy,.re-calibration.per.step.4.should.be.performed.at.the.  
time.batteries.are.replaced.  
 
M3366/0606  
DPG5000  
4. Re-Calibration  
This procedure requires a known pressure source of at least 0.1% accuracy in  
order to fully utilize the accuracy potential of the DPG5000 (If not available, the  
gauge can be returned to OMEGA for re-calibration.)  
Procedure:  
A. Ensure the Gauge is at 0 psig (or vacuum if absolute), and adjust the zero  
as per instructions in step 1.  
B. Apply full scale pressure to the pressure port and adjust the span (“S”) pot  
until the display reads the correct pressure.  
C. Re-check the zero and re-adjust the zero (“Z”) pot if required.  
D. Repeat steps B and C, until no further adjustment is required.  
5. Use Of Peak-Hold Feature (Optional)  
After initially turning the gage on (wait until the display stops flashing), a  
second push of the On/Off button energizes the peak-hold feature and causes  
an arrow to appear in the display. In this mode, only the highest reading sensed  
will be shown (until a higher reading comes along). This “peak” reading will be  
retained until the unit is reset by turning it off with a third push of the button.  
The sequence can then be re-initiated; one push for on in normal mode, two  
pushes for “peak-hold” mode and a third push for Off/Re-set.  
6. Analog Output Option (0 To 2 VDC)  
The 0–2 VDC analog output is accessed through a miniature “Phone Jack”  
(mate supplied) on the back of the unit (see External Power and 0-2 VDC  
Output Plug drawing on the last page). The “Tip” connection is “+ Output”  
and the center connection is “- Output”. DO NOT CONNECT TO THE CASE  
CONNECTION. This should only be used as a cable restraint. To minimize the  
effect on the battery life, the output should not be loaded with less than 100,000  
ohms.  
0 to 2 VDC Table  
0-2 VDC Output  
Tip  
+ Output  
– Output  
Center  
Body  
No connection  
5
 
DPG5000  
M3366/0606  
7. 4-20 mA Transmitter Option  
When equipped with this option the gauge no longer operates from batteries  
but instead is “Loop Powered”. The loop connection is made to a 6 pin  
receptacle located at the rear of the unit (a mating plug is supplied). A voltage of  
between 9 and 32 VDC must be maintained at this connection (Pin A is “+” and  
Pin B is “-” see sketch) to insure proper operation. Completion of the earth or  
system ground (Pin F) is recommended for proper circuit protection.  
Power supply voltage must be sufficient to maintain a minimum of 9 VDC  
at the gauge terminals after “dropping” voltage across RL at full scale current  
(20 mA). Example: If RL = 250 ohm then “drop” is 0.02 Amps X 250 ohm = 5  
volts. Therefore power supply minimum is 5 V + 9 V = 14 V.  
RE-CALIBRATION: The procedure is the same as in step 4, except that  
there are 2 sets of zero and span adjustments. The front panel controls affect the  
display and the rear controls (remove “battery” door) affect the 4/20 mA signal.  
Typical 4-20 mA Circuit  
Process  
Gauge  
Controller  
Connector  
+ EXCITATION  
+Vin  
A
B
C
D
E
– EXCITATION  
R
L
4-20 mA  
CURRENT  
LOOP  
F
6
 
M3366/0606  
DPG5000  
8. External Power (24 VDC) and 0 to 5 VDC Analog Output  
Option  
When equipped with this option the gauge no longer operates from batteries  
but instead is “externally powered”. Both the 24* VDC input power and the 0 to  
5 VDC Analog Output are connected to the 6 pin circular connector on the rear  
of the unit. Pin connections are as follows:  
*Actual.range.of.input.voltage.is.12.to.31.VDC.  
24 VDC External Power and 0-5 V Analog Output  
PIN -A- PLUS (+) 24 VDC POWER IN  
PIN -B- PLUS (+) ANALOG OUTPUT  
PIN -C- MINUS (-) ANALOG OUTPUT  
PIN -D- MINUS (-) 24 VDC POWER IN  
PIN -E- NO CONNECTION  
6 Pin Connector  
F
A
E
B
D
C
PIN -F- CASE GROUND  
9. External Power Without Other Options  
The external power input is accessed through a miniature “Phone Jack”  
(mate supplied) on the back of the unit. The “Tip” connection is “+ Power”  
and the center connection is “- Power”. DO NOT CONNECT TO THE CASE  
CONNECTION. This should only be used as a cable restraint.  
It is important that you never remove or insert the “Phone Jack” connector  
into the gauge with the power turned on. This can damage the gauge and cause  
it to fail. Only turn the power on after the “Phone Jack” has been inserted  
into the external power connector.  
External Power and 0-2 VDC Output Plug  
Body  
Center  
Tip  
(Note: Not to scale)  
 
DPG5000  
M3366/0606  
Notes  
 
Thank You for Purchasing  
OMEGA Products  
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.  
It is the policy of OMEGA to comply with all worldwide safety and EMC/  
EMI regulations that apply. OMEGA is constantly pursuing certification of  
its products to the European New Approach Directives. OMEGA will add  
the CE mark to every appropriate device upon certification.  
The information contained in this document is believed to be correct, but  
OMEGA Engineering, Inc. accepts no liability for any errors it contains, and  
reserves the right to alter specifications without notice.  
WARNING: These products are not designed for use in, and should not be  
used for, patient-connected applications.  
Again, thank you for your interest in OMEGA.  
We welcome the opportunity to help you achieve your application goals.  
 
OMEGAnet® On-Line Service  
Internet e-mail  
Servicing North America:  
USA:  
ISO.9001.Certified  
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Stamford, CT 06907-0047  
TEL: (203) 359-1660  
FAX: (203) 359-7700  
FAX: (514) 856-6886  
Canada:  
976 Bergar  
Laval (Quebec) H7L 5A1  
TEL: (514) 856-6928  
For immediate technical or application assistance:  
USA and Canada: Sales Service: 1-800-826-6342 / 1-800-TC-OMEGA®  
Customer Service: 1-800-622-2378 / 1-800-622-BEST®  
Engineering Service: 1-800-872-9436 / 1-800-USA-WHEN®  
TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA  
Mexica:  
Benelux:  
Tel: (001) 800-826-6342  
En Español: (001) 203-359-7803  
FAX: (001) 203-359-7807  
Servicing Europe:  
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TEL: +31 (0) 20 6418405  
FAX: +31 (0) 20 6434643  
Toll Free in Benelux: 0800 0993344  
Czech Republic: Rudé armády 1868, 733 01 Karviná  
TEL: +420 (0) 69 6311899  
FAX: +420 (0) 69 6311114  
Toll Free in Czech Rep.: 0800-1-66342 e-mail: [email protected]  
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Toll Free in France: 0800-4-06342  
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Toll Free in Germany: 0800 TC-OMEGASM  
United Kingdom: One Omega Drive, River Bend Technology Centre  
ISO.9002.Certified  
Northbank, Irlam, Manchester  
M44 5EX, United Kingdom  
TEL: +44 (0) 161 777 6611  
FAX: +44 (0) 161 777 6622  
Toll Free in the United Kingdom: 0800 488 488  
OMEGA is a registered trademark of OMEGA ENGINEERING, INC.  
© Copyright 2005 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.  
 

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