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PD683/PD688 Loop Leader Loop-Powered Digital Panel Meter

Brand: Precision Digital Corporation
The Loop Leader PD683/PD688 is a loop-powered, 1/8 DIN digital panel meter designed for demanding process control applications. The PD683/PD688 loop-powered indicator is built in a shallow-depth case with an FM Type 4X front and features loop-powered backlighting and a wide -30° to 65° C operating temperature range. 

The Loop Leader PD688/PD683 is an Intrinsically Safe and Nonincendive, loop-powered, 1/8 DIN digital panel meter designed for hazardous process control applications. The PD688/PD683 loop-powered indicator is built in a shallow-depth case with an FM Type 4X front and features loop-powered backlighting and a wide -30 to 65° C operating temperature range.
Features
  • 4-20 mA input
  • 5-Digit LCD, 0.6" (15.2 mm) high
  • 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 and bargraph
  • Linear, square root, or programmable exponent
  • Maximum and minimum display
  • Operating temperature range: -30° to 65° C (-22° to 149° F)
  • Intrinsically safe and Non-incendive
  • HART protocol transparent
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The Loop Leader PD683/PD688 is a loop-powered, 1/8 DIN digital panel meter designed for demanding process control applications. The PD683/PD688 loop-powered indicator is built in a shallow-depth case with an FM Type 4X front and features loop-powered backlighting and a wide -30° to 65° C operating temperature range. 

The Loop Leader PD688/PD683 is an Intrinsically Safe and Nonincendive, loop-powered, 1/8 DIN digital panel meter designed for hazardous process control applications. The PD688/PD683 loop-powered indicator is built in a shallow-depth case with an FM Type 4X front and features loop-powered backlighting and a wide -30 to 65° C operating temperature range.
Features
  • 4-20 mA input
  • 5-Digit LCD, 0.6" (15.2 mm) high
  • 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 and bargraph
  • Linear, square root, or programmable exponent
  • Maximum and minimum display
  • Operating temperature range: -30° to 65° C (-22° to 149° F)
  • Intrinsically safe and Non-incendive
  • HART protocol transparent

Specifications

Accuracy

  • Input (Square Root & Programmable Exponent): 10 to 100% of Full Scale
  • Input: ± 0.03% of Span ± 1 Count

Approvals & Certifications

  • ATEX II 1 G, Ex Ia IIC T4, IP65, Ta = -40° to 65° C (-40° to 149° F)
  • CE
  • CSA: Non-Incendive Suitable for use in Class I, Division 2, Grade A, B, C, D, Class II, Division 2, Groups F, G, Class III, Division 2,
  • FM: Intrinsically Safe with Entity for use in Class I, Division 1, Grade A, B, C, D, Class II, Division 1, Groups E, F, G, Class III, Division 1, Class I, Zone 0, Group IIC, Temp. Code = T4

Calibration

  • Recalibration: Recommended at least Every 12 Months

Communication

  • HART

Display

  • 0.60" (15.2 mm) High
  • 5-Digit LCD (-99,999 to 99,999)
  • 7-Segment
  • Automatic Lead Zero Blanking
  • Backlight: Bright Orange LED (Intensity Varies with Signal)
  • Bargraph: 20-Segment, 0-100% Indication
  • Display Update Rate: 2.5 Per second
  • Engineering Units: 0.25" (6.4 mm) High
  • Engineering Units: 14-Segment
  • Input (Low-Flow Cut-Off): -99,999 to 99,999

Electrical Connectors

  • Screw Terminals Accept 12 to 22 AWG Wire

Enclosure Finish

  • Gray

Enclosure, Body Material

  • Plastic
  • Stainless Steel
  • Steel

Environmental Protection

  • IP65
  • IP66
  • NEMA 4X

Function

  • Input: Linear
  • Input: Programmable Exponent
  • Input: Square Root

Humidity

  • 0% to 90% Relative Humidity, Non-Condensing

Input

  • 4-20 mA
  • Input Overload: over Current Protection to 2 A, Maximum

Mounting

  • 1/8" DIN Panel

Operating Temperature

  • -30° to 65° C (-22° to 149° F)

Programming

  • Four Front Panel Buttons

Resistance

  • Equivalent Resistance: 100 ohms at 20 mA without Backlight
  • Equivalent Resistance: 285 ohms at 20 mA with Backlight

Span - Minimum

  • 0.40 mA between Input 1 & Input 2

Storage Temperature

  • -40° to 85° C (-40° to 185° F)

Temperature Range

  • Allowable Temperature Range: -40° to 65° C (-40° to 149° F)

Thermal Drift

  • Input: 50 ppm / °C from -40° to 65° C (-40° to 149° F) Ambient

Torque

  • Tightening Torque: 0.5 Nm (4.5 In/Lbs) Screw Terminal Connectors

Voltage Drop

  • 2 V, Maximum
  • 5.7 V, Maximum