Model PD683-PD688 - Loop Leader Intrinsically Safe Loop-Powered Meters

Even with all the features packed into these meters, they`re still easy to setup and get running. Everything is programmed from the front panel buttons with no pots or jumpers to deal with. In fact, these indicators can be scaled without a signal source for even quicker setup.

The PD683 and PD688 go just about anywhere with their shallow-depth case, FM Type 4X front, loop-powered backlighting, and wide operating temperature range. It doesn`t matter if they`re indoors or outdoors, in bright sunlight, or a dimly lit plant, wet, dirty, hot or cold. And the PD688, with its FM approval and CSA certification, can be installed in just about any hazardous area environment.

Square root and programmable exponent functions are standard features on the PD683 and PD688. With these features these indicators can display flow from a DP transmitter or open channel flow in weirs and flumes.

Through significant innovations in technology and design, we developed the Loop Leader^® Series of loop-powered indicators which are loaded with standard features and built for tough industrial environments

Full Featured
There`s nothing stripped down or bare bones about these indicators; they are designed for demanding process control applications. Standard features include a full 5-digit backlit display with bargraph, on-screen custom engineering units, and min/max capabilities.

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 PD688 with its FM Approval and CSA Certification can be installed in just about any hazardous location

Square Root Function

The square root extraction feature displays flow rate by extracting the square root from a differential pressure transmitter signal. The user selectable low-flow cutoff feature gives a reading of

   •Displays Flow Rate
   •User Selectable Low-Flow Cutoff
   •Only 2 Calibration Points Required

General

• Display:Five digits: -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% to 100% indication.
• Trend arrows: Up and down trend indication.
• Backlight:Bright orange (intensity varies with signal)
• Display Update Rate:2.5/second
• Overrange:Display flashes 99999
• 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:125 Ω @ 20 mA w/o backlight, 315 Ω @ 20 mA with backlight
• Normal Mode Rejection:64 dB at 50/60 Hz
• Operating temperature range:-30 to 65°C
• Allowable Temperature Range:-40 to 65°C* (see note below)
• Storage temperature range:-40 to 65°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 connections
• Overall Dimensions:2.45" x 4.68" x 4.19" (62 x 119 x 106 mm)
• Weight:5.7 oz (162 g)
• Warranty:3 years parts & labor

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
• Note: An Error message will appear if input 1 and input 2 signals are too close together
• Input Overload:Over current protection to 2 A max.
• Decimal Point:Up to four decimal 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