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5

4.0 

POWER AND SIGNAL

AC versions of the voltmeter are factory-set for 115 Vac in the USA and 230 Vac in 

Europe (using C1 option) ±15% operation. DC versions are preset for 9-32 Vdc or  

26-56 Vdc operation. It is not possible to change the meter from 9-32 Vdc to  

26-56 Vdc or vice versa. Different static inverters are installed by the factory.

Refer to Safety Considerations prior to connecting power.

4.1 

CHANGING OPERATING VOLTAGE

Remove power lines from the meter, then remove the meter from the case.

Figure 4.1

Side View of Transformer

4.2 

POWER AND SIGNAL CONNECTIONS

Use shielded, twisted cable for the input signal, with the shield terminated to analog 

ground at the connector. Both analog and digital ground are internally connected and 

should not be connected externally. For proper grounding, connect the low signal to 

SIG LO (signal low).

A jumper at S3-A  (

Figure 5-2 Main Board) ties SIG LO to ANA GND (analog 

ground) internally. The common for digital inputs/outputs is connected to DIG GND 

(digital ground). This allows current to flow only in the digital ground and prevents IR 

drop in the analog ground that would be misread as a signal. A small voltage may 

exist between analog and digital grounds on connector J1.

Input

Jumper Installation

230 Vac ±15% (Option C1)

Remove W8 and W9 on the transformer
Install W4 on the printed circuit board

115 Vac ±15% (Standard)

Remove W8 and W9 on the transformer
Install W4 on the printed circuit board

Summary of Contents for DP3001

Page 1: ...http www omega com e mail info omega com User sGuide DP3001 DIGITAL PANEL VOLTMETER ROHS 2 COMPLIANT...

Page 2: ......

Page 3: ...nversion 2 2 7 Display 2 2 8 Power 2 2 9 Environmental 2 2 10 Mechanical 3 3 0 MECHANICAL ASSEMBLY INSTALLATION 3 3 1 Case Dimensions 3 3 2 Panel Mounting 4 4 0 POWER SIGNAL 5 4 1 Changing Operating V...

Page 4: ...1 Side View of Transformer 6 Figure 4 2 Rear Terminal Hookups 7 Figure 5 1 Display Board Jumper Locations 10 Figure 5 2 Main Board Jumper Locations 11 Figure 5 3 Solder Switch Locations 12 Figure 7 1...

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 over current protection device...

Page 6: ......

Page 7: ...del contains the required circuitry for full range selection and easy configuration 2 0 SPECIFICATIONS 2 1 ANALOG INPUT Model 3 4 5 Range 1 9999 Vdc 19 999 Vdc 199 99 Vdc Resolution 0 1 mV 1 mV 10 mV...

Page 8: ...ogrammable internally or at the rear connector Overrange indication 4 least significant digits flash 2 8 POWER Standard AC power voltage 115 or 230 Vac 15 AC frequency range 49 to 440 Hz Optional DC p...

Page 9: ...ouble row of 18 pins 3 96 mm 0 156 in spacing between pins Barrier terminal strip with six 6 screw Bezel Depth behind bezel with connector Panel cutout Weight Case material D1 connector option D4 conn...

Page 10: ...the panel cutout refer to case dimensions shown below 3 Push the slide retainers onto the case to fit tightly against the panel rear Rotate slide clamps back into original position and tighten clamp s...

Page 11: ...with the shield terminated to analog ground at the connector Both analog and digital ground are internally connected and should not be connected externally For proper grounding connect the low signal...

Page 12: ...d Green Green Model Power Signal AC D1 Connector A High 17 High 2 Low 16 Low C Earth Ground T Analog Ground D4 Connector 1 High 6 High 2 Low 5 Low 3 Earth Ground 4 Analog Ground DC D1 Connector 2 DC 1...

Page 13: ...E24 H 199 99 DP3 7 Spare E23 J 19 999 DP2 8 Spare E22 K 1 9999 DP1 9 Spare E25 L Decimal point select 10 Spare E26 M Spare E27 11 4 6 Vdc power output N Spare E29 12 4 7 Vdc power output P Excitation...

Page 14: ...s If taken low the converter will complete the full measurement cycle and then hold this reading as long as HOLD is low A positive pulse greater than 300 ns will now initiate a new measurement cycle b...

Page 15: ...lder 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 using main b...

Page 16: ...ons Refer to Figure 5 3 S3 A is used for signal connections Refer to Section 4 for more information Input Configuration Solder Switches Push on Jumpers Wire Jumper Open Close S2 S4 W10 2 Vdc J L H I K...

Page 17: ...the stability and internal accuracy If calibration is needed use the following procedure 1 Remove the front lens Insert a blade screwdriver under the notch at the bottom of the lens and gently pry it...

Page 18: ...12 7 0 DRAWINGS Figure 7 1 Assembly Diagram Main and Display Board...

Page 19: ...t the slope in volts sec during this second period T2 is constant and independent of input signal levels The time required to discharge the capacitor back to zero volts is then proportional to the sig...

Page 20: ..._______________________ _____________________________________________________________________________ ______________________________________________________________________________ ___________________...

Page 21: ..._________________________ _____________________________________________________________________________ ______________________________________________________________________________ _________________...

Page 22: ..._________________________ _____________________________________________________________________________ ______________________________________________________________________________ _________________...

Page 23: ...NS 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...

Page 24: ...Indicators R Turbine Paddlewheel Systems R Totalizers Batch Controllers pH CONDUCTIVITY R pH Electrodes Testers Accessories R Benchtop Laboratory Meters R Controllers Calibrators Simulators Pumps R In...

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