Precision Digital PD684 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
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Cat # | Descriptions |
PD684-0K1 | Loop Leader® PRT - Rate/Totalizer for Safe Area |
General | ||
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 | ||
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. |