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. |
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