Precision Digital

PD6620 Loop Leader Loop-Powered Rate/Totalizer

1/8 DIN flow rate/totalizer, dual-line display (5 digits on top, 8 on bottom), designed for demanding process control applications

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$391.00 CAD
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The Loop Leader PD6620 is a loop-powered, 1/8 DIN flow rate/totalizer 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. gallons/second to liters/second) without the need to re-scale the meter.

The dual-line display can be customized by the user to operate in such a way as to satisfy a specific application. Typically, the top line is used for the rate while the bottom line is used for the total, grand total, or engineering units. Three programmable function keys and a digital input come standard and allow the meter to be customized for use in specialized applications.

All models come equipped with two open collector outputs and are available with two solid state relays and a 4-20 mA analog output. These outputs can be programmed for alarm indication, signal retransmission via pulse or analog signal, pump control, and a number of other useful features.

The fact that this meter is loop-powered means that there is no need to run additional, costly power lines; the meter gets all of the power it needs from the 4-20 mA loop. The Loop Leader loop-powered rate/totalizer is built in a shallow-depth case with a NEMA 4X/IP65 front and features loop-powered backlighting and a wide -40 to 167°F (-40 to 75°C) operating temperature range. It doesn't matter if it's indoors or outdoors, in bright sunlight or a dimly lit plant, or in an area that is wet, dirty, hot, or cold, the Loop Leader can go just about anywhere.



• Loop-Powered Backlight with Red Backlight for Alarm Conditions
• Loop-Powered Rate/Totalizer
• Display rate & total simultaneously
• Total display includes commas for more intuitive readings
• 1.5 Volt Drop (4.5 Volt Drop w/ Backlight)
• NEMA 4X, IP65 Front
• -40 to 167°F (-40 to 75°C) Operating Temperature Range
• Five Digit Top Line
• Alphanumeric tag names
• Total, Grand Total, or Non-Resettable Grand Total
• Up to 13-digit total & 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
• Optional Bargraph Display (PD6624)
• Batch control relay operation
• Timer functions for open collectors and relays
• Relay runtime and cycle count
• Multi-Point Linearization, Square Root, and Programmable Exponent Input Conditioning Functions
• Enter initial total & grand total count

Display Top: 0.7” (17.8 mm), Bottom: 0.4” (10.2 mm); 14-segment alphanumeric

Top: 5 digits -9999 to 99999

Bottom: 8 digits -9,999,999 to 99,999,999

Bottom line separated by commas
Display Update Rate Ambient > -10°C: 1 Update/Second

Ambient > -20°C: 1 Update/2 Seconds

Ambient -40°C: 1 Update/10 Seconds
Over Range Top: 99999; Bottom: 99,999,999 (flashing)
Under Range Top: -9999; Bottom: -9,999,999 (flashing)
Programming Method Front panel
Noise Filter 1, 2, 4, 8, 16 sec.
Noise Filter Bypass 0.1 to 99.9% FS
Recalibration Recalibration is recommended at least every 12 months.
Max/Min Display Max/min readings reached by the process are stored until reset by the user or until power to the meter is turned off.
Password Programmable password restricts modification of programmed settings.
Non-Volatile Memory All programmed settings are stored in non-volatile memory for a minimum of ten years if power is lost.
Normal Mode Rejection 64 dB at 50/60 Hz
Environmental Operating temperature range: -40 to 75°C
Storage temperature range: -40 to 85°C
Relative humidity: 0 to 90% non-condensing
Connections Removable screw terminals accept 12 to 22 AWG wire
DI Digital Input Contacts 2.1 VDC on contact. Connect normally open contacts across DI+ to DI-
DI Digital Input Logic Levels Logic High: 2.4 to 30 VDC (max)

Logic Low: 0 to 0.9 VDC
Enclosure & Materials 1/8 DIN, high impact plastic, NORYL® Polyphenylene Ether & Polystyrene blend (PPE PS) Resin, UL 94V-0, color: gray

Gasket: Silicone Rubber

Faceplate: LEXAN® Polycarbonate (PC) Film

Buttons: Silicone rubber; Color: black
Mounting 1/8 DIN panel cutout required. Two panel mounting bracket assemblies provided
Tightening Torque Screw terminal connectors: 4.5 lb-in (0.5 Nm)
Mounting screws: 8.0 lb-in max. (0.9 Nm)
Overall Dimensions (W x H x D) 4.68" x 2.45" x 3.79" (119 mm x 62 mm x 96 mm)
Weight 8.7 oz (247g) w/ option board
Warranty 3 years parts and labor