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WARRANTY/DISCLAIMER

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

od of 

13 months

 from date of purchase. OMEGA 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 should malfunction, 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 being 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 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 it 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.

FOR 

WARRANTY

 RETURNS, please have the 

following information available BEFORE  

contacting OMEGA:
1. P.O. 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. P.O. number to cover the COST

of the repair,

2. Model and serial number of 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 PROCESS-

ING 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.  

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 registered trademark of OMEGA 

ENGINEERING, INC. © Copyright 2012 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 prior written consent of OMEGA ENGINEERING, INC.

Summary of Contents for DP301AN

Page 1: ...DP301AN DC VOLTMETER DP301AN AC VOLTMETER e mail info omega com For latest product manuals www omegamanual info Shop online at omega com User sGuide...

Page 2: ...rves the right to alter specifications without notice Servicing North America U S A Headquarters Omega Engineering Inc Toll Free 1 800 826 6342 USA Canada only Customer Service 1 800 622 2378 USA Cana...

Page 3: ...r 3 2 9 Environmental 3 2 10 Mechanical 3 3 0 MECHANICAL ASSEMBLY AND INSTALLATION 4 3 1 Panel Mounting 4 4 0 POWER AND SIGNAL 6 4 1 Changing Operating Voltage 6 4 2 Power and Signal Connections 6 4 3...

Page 4: ...sions 4 Figure 3 2 Exploded View 5 Figure 4 1 Main Board 6 Figure 4 2 Rear Terminal 6 Figure 5 1 Display Board Jumper Locations 10 Figure 5 2 Main Board Jumper Locations 11 Figure 5 3 Solder Switch Lo...

Page 5: ...incorporated in the mains supply cord Furthermore to provide protection against excessive energy being drawn from the mains supply in case of a fault in the equipment an overcurrent protection device...

Page 6: ...rement with readout from 0 to 1 999 1 2 MODEL DP301AN AC Model DP301AN AC for AC power line monitoring has a screw terminal barrier strip for signal and power This model uses a half wave average conve...

Page 7: ...z CMV SIG LO to SIG GND 1 0 Vp CMR AC GND to SIG GND 120 dB DC to 60 Hz CMV AC GND to SIG GND 1500 Vp per HV test 354 Vp per IEC spacing 2 4 ANALOG TO DIGITAL CONVERSION Technique Dual slope average v...

Page 8: ...56 V dc isolated to 300 Vp Power consumption 2 4 W nominal 2 9 ENVIRONMENTAL Operating temperature 0 to 60 C Storage temperature 40 to 85 C Relative humidity 95 at 40 C non condensing 2 10 MECHANICAL...

Page 9: ...nough to allow for the panel thickness 3 Slide the two slide retainers towards the rear of the unit and remove them 4 Observe the case dimensions previously shown From the front of the panel insert th...

Page 10: ...5 3 1 PANEL MOUNTING continued WARNING High voltage is present when using model AN AC with the 650 V AC option Figure 3 2 Exploded View...

Page 11: ...he voltmeters are factory set for 115 V ac 15 operation Power and signal can be connected using the D1 or D4 option Figure 4 2 Rear Terminal OPERATING VOLTAGE JUMPER INSTALLATION 230 V ac 15 Option C1...

Page 12: ...High 6 High 2 N Low 5 Low 3 Ground 4 Signal GRND DC D1 2 DC 17 High C DC return 16 Low D4 1 No connection 6 High 2 DC 5 Low 3 DC return 4 Signal GRND Connector Power Signal D4 1 L High 6 High 2 N Low...

Page 13: ...N J1 Connector D1 Option A 1 N C B 2 AC LO DC PWR C 3 N C D 4 N C E 5 N C F 6 DIG GND H 7 199 9 DP J 8 19 99 DP K 9 1 999 DP L 10 LAMP TEST M 11 4 7 V N 12 EXC P 13 EXC R 14 HOLD S 15 Spare T 16 SIG L...

Page 14: ...4 4 DIGITAL TEST SIGNALS Display HOLD instructs the meter to maintain a display of the last reading To activate HOLD connect J1 pin 14 R to J1 pin 11 M LAMP TEST instructs the meter to light the minu...

Page 15: ...en close solder switches as indicated Remove all push on jumpers not used 5 1 DECIMAL POINT SELECTION Figure 5 1 Display Board Jumper Locations Decimal Point S1 Alternate Decimal Point Configuration U...

Page 16: ...ure 5 3 on the following page for solder switch locations Input Configuration Solder Switches Push on Jumpers Remove Jumper Open Close S2 S3 Wire 200 mV dc A A 2 V dc B 20 V dc B C 200 V dc B D 200 V...

Page 17: ...12 5 3 BLANKING THE LEAST SIGNIFICANT DIGIT To blank the least significant digit open solder switch A on the circuit side of the display board Figure 5 3 Solder Switch Locations...

Page 18: ...age equal to 95 of the high end of the range selected 4 Locate the Span potentiometer R23 in Figure 3 2 Adjust until the display reads 1900 1 count 6 2 AC VOLTAGE RANGES 1 Follow steps 1 and 2 from ab...

Page 19: ...14 7 0 DRAWINGS Figure 7 1 Assembly Diagram...

Page 20: ...15 NOTES...

Page 21: ...ty 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 Equipmen...

Page 22: ...Paddlewheel Systems Totalizers Batch Controllers pH CONDUCTIVITY pH Electrodes Testers Accessories Benchtop Laboratory Meters Controllers Calibrators Simulators Pumps Industrial pH Conductivity Equipm...

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