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Precision Digital PD684 5 Digit Loop-Powered Rate/Totalizer With Loop-Powered Backlight

5 Digit Loop-Powered Rate/Totalizer With Loop-Powered Backlight

Through significant innovation in technology and design, Precision Digital developed the Loop Leader® Series of loop-powered rate/totalizers, which are loaded with standard features and built for tough industrial environments.

Full Featured - Everything comes standard with these meters. The competition may charge extra for loop-powered backlighting, open collector output and programmable exponent capability, but these and a host of other key features are standard on these indicators.

Install Just About Anywhere - Indoors, outdoors, bright sunlight, dimly lit plant, wet, dirty, hot or cold, these indicators go just about anywhere. Their shallow depth case, FM Type 4X front, loop-powered backlighting, and wide operating temperature range are all standard features. And the PD689 with its FM Approval and CSA Certification can be installed in just about any hazardous location.

• 4-20 mA Input
• 5 Digit LCD, 0.6 (15.2 mm) High
• Overflow Feature Displays Total up to 8 Digits
• Programmable Alternating Rate/Total Display
• FM Type 4X, IP65 Front
• Shallow Depth Case 3.2" Behind Panel
• 2 V Drop (5.7 V with Backlight)
• Loop-Powered Backlight Standard
• Custom Engineering Units & Bargraph
• Linear, Square Root, or Programmable Exponent
• Maximum & Minimum Display
• Operating Temperature Range -20 to 65°C
• Intrinsically Safe & Non-Incendive
• Open Collector Alarm or Pulse Output
• HART Protocol Transparent

Select a link under the "item" tab below to order.

Cat #Descriptions
PD684-0K1Loop Leader® PRT - Rate/Totalizer for Safe Area
Display: 5 digit LCD (-99999 to 99999), 0.60" (15.2 mm) high, 7-segment, automatic lead zero blanking
Engineering Units: 0.25" (6.4 mm) high, 14-segment
Bargraph: 20-segment, 0-100% indication
Trend Arrows: Up and down trend indication
Backlight: Bright orange LED (intensity varies with signal)
Front Panel: FM Type 4X, IP65; panel gasket provided
Display Update Rate: 2.5/second
Overrange: Display flashes 9999
Underrange: Display flashes -99999
Programming Method: Four front panel buttons
Noise Filter: Programmable from 1 to 199
Recalibration: 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.
Voltage Drop: 2.0 V max w/o backlight, 5.7 V max with backlight
Equivalent Resistance: 100 Ω @ 20 mA without backlight, 285 Ω @ 20 mA with backlight.
Normal Mode Rejection: 64 dB at 50/60 Hz
Operating Temperature Range: -20 to 65°C
Allowable Temperature Range: -40 to 65°C* (see note below)
Storage Temperature Range: -40 to 85°C
Relative Humidity: 0 to 90% non-condensing
Connections: Screw terminals accept 12 to 22 AWG wire
Enclosure: 1/8 DIN, high impact plastic, UL 94V-0, color: gray
Mounting: 1/8 DIN panel cutout required. Two panel mounting bracket assemblies provided.
Tightening Torque: 4.5 lb-in (0.5 Nm) Screw terminal connectors
Overall Dimensions: 4.68" x 2.45" x 3.79" (119 x 62 x 96 mm)
Weight: 5.7 oz (162 g)
Warranty: 3 years parts and labor
Extended Warranty: 1 or 2 years, refer to Price List for details
Input Range: 4-20 mA
Accuracy: ±0.03% of span ±1 count, square root and programmable exponent: 10-100% FS.
Calibration: Scale without signal or calibrate with signal source
Calibration Range: User programmable over entire range of meter
Minimum Span: 0.40 mA between input 1 and input 2
Input Overload: Over current protection to 2 A maximum
Decimal Point: Up to 4 places (d.dddd, dd.ddd, ddd.dd, dddd.d, or ddddd)
Function: Linear, square root, or programmable exponent
Low-Flow Cutoff: -99999 to 99999 (-99999 disables cutoff function)
Temperature Drift: 50 PPM/°C from -40 to 65°C ambient
Totalizer Features
Total Display: 0 to 99,999 main total display plus 0 to 999 total overflow for a combined 8 digit total of 99,999,999.
Alternating Display: Totalizer may be programmed to alternate between rate and total every 10 seconds.
Time Base: Seconds, minutes, hours, or days
Totalizer Conversion Factor: 0.0001 to 99999
Totalizer: Calculates total based on rate, time base of second, minute, hour, or day, and field programmable multiplier; stored in non-volatile memory upon power loss.
Totalizer Rollover: Total rolls over when total exceeds 99,999,999.
Totalizer Reset: Manual reset or automatic with time delay, or disabled for non-resettable total applications.
Open Collector Output
Rating: Isolated open collector, 30 VDC @ 175 mA maximum
Alarm Output: Assign to rate or total, high or low rate alarm.
Deadband: 0-100% FS, user selectable
Acknowledge: ACK button resets output and screen indication.
Automatic Reset: Alarm resets automatically when signal reaches
the reset point.
Pulse Output: K-Factor programmable from 0.0001 to 99999.
Programmable frequency: 2, 4, 8, 16, 32, 64, 128 Hz.
Minimum pulse width: 3.9 ms @ 128 Hz.
Maximum pulse width: 250 ms @ 2 Hz.

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