PD6620 Series Loop Leader Loop-Powered Rate/Totalizer

Brand: Precision Digital Corporation
The Loop Leader PD6622 and PD6624 are loop-powered, 1/8 DIN flow rate/totalizers designed for demanding process control applications. The four front panel buttons make setup and programming of the meter simple and intuitive. A dual-line display featuring five digits on the top line and eight digits on the bottom line, preprogrammed engineering units, and optional bargraph display (PD6624) provide a clear and attractive presentation of the process. 

The units of measure can be changed as needed (e.g. gal/second to liters/second) without the need to re-scale the meter.
Features
  • Loop-powered rate/totalizer
  • Loop-powered backlight with red backlight for alarm conditions
  • Display rate and total simultaneously
  • Total display includes commas for more intuitive readings
  • 1.5 Volt drop (4.5 Volt drop with backlight)
  • IP65 front
  • Operating temperature range: -40° to 75° C (-40° to 167° F)
  • Five digit top line
  • Alphanumeric tag names
  • Total, grand total, or non-resettable grand total
  • Up to 13-digit total and grand total
  • Dual line display
  • 1/8 DIN shallow depth case
  • Optional loop-powered solid state relays
  • Optional 4-20 mA Analog output
  • Open collector output standard
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The Loop Leader PD6622 and PD6624 are loop-powered, 1/8 DIN flow rate/totalizers designed for demanding process control applications. The four front panel buttons make setup and programming of the meter simple and intuitive. A dual-line display featuring five digits on the top line and eight digits on the bottom line, preprogrammed engineering units, and optional bargraph display (PD6624) provide a clear and attractive presentation of the process. 

The units of measure can be changed as needed (e.g. gal/second to liters/second) without the need to re-scale the meter.
Features
  • Loop-powered rate/totalizer
  • Loop-powered backlight with red backlight for alarm conditions
  • Display rate and total simultaneously
  • Total display includes commas for more intuitive readings
  • 1.5 Volt drop (4.5 Volt drop with backlight)
  • IP65 front
  • Operating temperature range: -40° to 75° C (-40° to 167° F)
  • Five digit top line
  • Alphanumeric tag names
  • Total, grand total, or non-resettable grand total
  • Up to 13-digit total and grand total
  • Dual line display
  • 1/8 DIN shallow depth case
  • Optional loop-powered solid state relays
  • Optional 4-20 mA Analog output
  • Open collector output standard

PD6622/PD6624

Model

Output

Specifications

Accuracy

  • 4-20 mA Transmitter Output: ± 0.05% of Full Scale ± 0.001 mA
  • Process Input (Square Root & Programmable Exponent): 10 to 100% of Full Scale
  • Process Input: ± 0.02% of Span ± 1 Count

Alarm

  • Open Collector Output, Solid State Relay (Alarm Deadband): 0 to 100% of Full Scale, User Programmable
  • Open Collector Output, Solid State Rely: User Programmable for High/Low Alarm

Calibration

  • 4-20 mA Transmitter Output: Factory Calibrated 4-20 mA
  • Recalibration is Recommended at least Every 12 Months

Delay Time

  • Open Collector Output, Solid State Relay (On & Off Time Delay): 0 to 9,999 seconds

Display

  • 14-Segment Alphanumeric Characters
  • Bargraph
  • Bottom: 0.4" (10.2 mm)
  • Bottom: 8-Digits (-9,999,999 to 99,999,999)
  • Process Input (Display Range): -9,999 to 99,999 on Top Line
  • Process Input (Display Range): -9,999,999 to 99,999,999 on Bottom Line
  • Top: 0.7" (17.8 mm)
  • Top: 5-Digits (-9,999 to 99,999)

Electrical Connectors

  • Removable Screw Terminals Accept 12 to 22 AWG Wire

Electrical Contacts

  • DI Digital Input Contacts: Normally Open

Electrical Rating

  • Open Collector Output: Two NPN, Isolated Open Collector, 30 Vdc at 90 mA - Maximum
  • Solid State Relay (Resistive Load): 250 Vac/dc at 1 A

Enclosure Finish

  • Buttons: Black
  • Gray

Enclosure, Body Material

  • High Impact Plastic
  • Noryl Polyphenylene Ether
  • Polystyrene Blend (PPE PS) Resin
  • Stainless Steel
  • Steel

Environmental Protection

  • IP65
  • IP66
  • NEMA 4
  • NEMA 4X

Frequency

  • Open Collector Output (Pulse Output Frequency): 250 Hz, Maximum

Function

  • Process Input: Linear
  • Process Input: Programmable Exponent
  • Process Input: Square Root

Gasket Material

  • Silicone Rubber

Humidity

  • 0 to 90% Relative Humidity, Non-Condensing

Input

  • DI Digital Input Contact: 2.1 Vdc
  • DI Digital Input Logic High: 2.4-30 Vdc, Maximum
  • DI Digital Input Logic Low: 0-0.9 Vdc
  • Process Input (Scaling & Display Range): 4-20 mA
  • Process Input Overload: over Current Protection to 1 A, Maximum

Isolation

  • 4-20 mA Transmitter Output: 500 V

K-Factor

  • Open Collector Output (Pulse Output Factor): 0.000001 to 999,999.9

Load

  • Solid State Relay (Inductive Load): 1/10 hp at 125/250 Vac/dc

Loop Resistance

  • 4-20 mA Transmitter Output: 10 to 750 ohms at 24 Vdc
  • 4-20 mA Transmitter Output: 100 to 1,100 ohms at 30 Vdc

Materials of Construction

  • Buttons: Silicone Rubber
  • Faceplate: Lexan Polycarbonate (PC) Film

Mounting

  • 1/8" DIN Panel
  • Two Panel Mount Bracket

Operating Temperature

  • Environmental: -40° to 75° C (-40° to 167° F)

Output

  • 4-20 mA Transmitter Output (Disable): High Impedance State < 1 mA
  • 4-20 mA Transmitter Output (Scaling Range): 1-23 mA
  • Analog Output: 4-20 mA

Output Noise

  • Noise Filter Bypass: 0.1 to 99.9% of Full Scale
  • Noise Filter: 1 to 16 seconds

Power Supply

  • 4-20 mA Transmitter Output (External Loop Power Supply): 7-30 Vdc, Maximum

Programming

  • Front Panel

Pulse Range

  • Open Collector Output (Pulse Width): 2 milliseconds, 50% Duty Cycle

Range

  • Process Input (Scaling Range): -999,999.9 to 999,999.9

Resistance

  • Process Input (Equivalent Resistance with Backlight Off): 75 ohms at 20 mA
  • Process Input (Equivalent Resistance with Backlight On): 225 ohms at 20 mA

Storage Temperature

  • -40° to 85° C (-40° to 185° F)

Thermal Drift

  • 4-20 mA Transmitter Output: 0.5 µA / °C, Maximum
  • Process Input: 25 ppm / °C from -40° to 75° C (-40° to 167° F) Ambient

Torque

  • Tightening Torque (Mounting Screws): 0.9 Nm (8 In/Lbs), Maximum
  • Tightening Torque (Screw Terminal Connectors): 0.5 Nm (4.5 In/Lbs)

Update Time

  • Display Update Rate [Ambient >-10° C (14° F)]: 1 Update / 1 second
  • Display Update Rate [Ambient >-20° C (-4° F)]: 1 Update / 2 seconds
  • Display Update Rate [Ambient -40° C (-40° F)]: 1 Update / 10 seconds

Voltage Drop

  • Process Input (with Backlight): 4.5 V, Maximum
  • Process Input (without Backlight): 1.5 V, Maximum

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