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Chapter 1 Introduction
1.1 Unpacking
Remove the Packing List and verify that you have received all equipment. If you have any questions about the
shipment, please call OMEGA Customer Service Department.
When you receive the shipment, inspect the container and equipment for any signs of damage. Note any evidence
of rough handling in transit. Immediately report any damage to the shipping agent.
NOTE:
The carrier will not honor any damage claims unless all shipping material is saved for their examination.
After examining and removing contents, save packaging material and carton in the event reshipment is
necessary.
1.2 Description
Featuring 5 digits of rate and 8 digits of total, the DPF500 meter is a battery powered indicator capable of accepting
magnetic pickup, DC pulse and switch closure inputs. The unit can be ordered with an optional 4-20mA output. The
DPF500-MA uses the 4-20mA loop to provide power when this output is used.
1.3 Features
• Magnetic Pickup Input, Contact Closure Input, DC Pulse Input (Optically Isolated)
• Displays Rate & Total Simultaneously
• 5 Digit Rate Display
• 8 Digit Totalizer Display
• 4-20mA Analog Output (-MA option)
• Powered From Internal Battery, or 4-20 mA Output Loop (-MA option)
• 20 Pt. Linearization (-LIN option)
• Isolated Scaled Pulse Output
1.4 Available Models
The following models are available from OMEGA Engineering, Inc.
PART NUMBER
DESCRIPTION
DPF501
Panel Mount, Battery Powered* Ratemeter and Totalizer (NEMA-4 Front)
DPF502
Wall Mount, Battery Powered* Ratemeter and Totalizer (NEMA-4 Enclosure)
DPF503
Explosion Proof, Battery Powered* Ratemeter and Totalizer
Class I, Division I, Groups B, C & D
Class II, Division I, Groups E, F & G
* All units may be powered from an external 8.5 -30 VDC to prolong internal battery life.
1.5 Available Options/Accessories
The following options (available at the time of ordering) are available from OMEGA Engineering, Inc.
PART NUMBER
DESCRIPTION
-MA
Loop Powered with 4-20 mA output
-LIN
20-point linearization
-BAT
Battery Pack
-ET
Extended Temperature Range
The following accessories are available from OMEGA Engineering, Inc.
PART NUMBER
DESCRIPTION
DPF5-BP
External battery pack with 2 "C" size batteries and 12" leads
DPF501-BAT
Spare battery
FPW-15
15 VDC power supply
