ISO 9001:2008 Certified Quality System
 



Download Precision Digital Catalogs
Download Precision Digital Price Lists
PDC Catalog app for iPad
Read and Download Precision Digital white papers
Try the Trident X2 Virtual Meter
Try the Trident X2 Virtual Meter

PD683-PD688 Loop Leader Intrinsically Safe Loop-Powered Meters


Display Features Key Features Setup & Programming Diagrams

Installation Specifications Ordering Information Documentation


Intrinsically safe and non-incendive PD683-PD688 Loop Leader
I'd like to make an inquiry on this product

Features

  •  4-20 mA Input
  •  5-Digit Display
  •  0.6" (15.2 mm) LCD
  •  FM Type 4X, IP65 Front
  •  Shallow Depth Case 3.2" Behind Panel
  •  2 V Drop (5.7 V with Backlight)
  •  Loop-Powered Backlight
  •  Custom Engineering Units
  •  Bargraph Display & Trend Arrow
  •  Maximum & Minimum Display
  •  Square Root, or Programmable Exponent
  •  Non-Volatile Memory - No Battery Needed
  •  Operating Temperature Range: -30 to 65°C
  •  Intrinsically Safe & Non-Incendive
  •  HART Protocol Transparent
Loop-powered Meters: PD688 Loop Leader™  Approvals
There's nothing stripped down or bare bones about these intrinsically safe, loop-powered meters, designed for demanding process control applications. Standard features include a full 5-digit backlit display with bargraph, on-screen custom engineering units, and max/min display capabilities. There are two models available: the PD683 is for general-purpose applications and the PD688 is for hazardous area applications.

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.

PD683-PD688  Loop Leader™ Display Features

Key Features

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


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

Loop-powered indicators Loop Leader™  Square Root Function


4-20 mA Input Connections


Loop-powered Meters: PD684-PD689 Loop Leader Wiring Diagrams



Programmable Exponent



The programmable exponent function is used to linearize the level signal in open channel flow applications using weirs and flume and display flow and display flow rate in engineer.

Loop-powered indicators:  Loop Leader™  open channel flow  weirs and flume function

Setup & Programming

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 meters can be scaled without a signal source for even quicker setup.

Main Menu

   •Press Menu button to enter Programming Mode then    press Up arrow button to scroll main menu.

   •Press Menu button, at any time, to exit and return to    Run Mode. Changes made to settings prior to pressing    Enter/Ack button are not saved.

   •Changes to the settings are saved to memory only    after pressing Enter/Ack button.

   •The display moves to the next menu every time a    setting is accepted by pressing Enter/Ack button.
Loop-powered Meters: PD683-PD688  Loop Leader™ Setup and Programming Main Menu

Advanced Menu Features

To simplify the setup process, functions not needed for most applications are located in the Advanced features menu.
   •Press and hold the Menu button for five seconds       to access the advanced features of the meter
Loop-powered indicators: PD683-PD688 Loop Leader™  Advanced Menu Features

Wiring Diagrams

PD683 Safe Area Wiring



Loop-powered Meters: PD683  Loop Leader™ Safe Area Wiring With Backlight
With Backlight


Loop-powered Meters: PD683  Loop Leader™ Safe Area Wiring Without Backlight
Without Backlight

PD688 Intrinsically Safe Wiring

Installation must be performed in accordance with Control Drawing LIM688-2
Loop-powered Meters: PD688 Loop Leader Intrinsically Safe Wiring With Backlight
With Backlight
Loop-powered Meters: PD688  Loop Leader  Intrinsically Safe Wiring Without Backlight

Without Backlight
 

Installation

There is no need to remove the meter from its case to complete the installation, wiring, and setup of the meter.
Loop-powered Meters PD683-PD688  Loop Leader Mounting Dimensions

Mounting Dimensions

Notes:

  1. Panel cutout required: 1.772 x 3.622 (45 x 92)
  2. Panel thickness: 0.040 – 0.250(1.0 – 6.4)
  3. Mounting brackets lock in place for easy mounting

Optional Field Enclosures

Enclosures available for one to six meters
Loop-powered Meters within PDA2706 NEMA 4 Enclosure
PDA2706 NEMA 4 Enclosure
Shown with Six PD683 Meters
PDA2801 Low-cost NEMA 4X Enclosure

PDA2801 Low-cost NEMA 4X Enclosure
Shown with One PD683

Specifications

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

* Below -30°C the LCD becomes less readable. See application note AN-1005

Disclaimer
The Information contained in this document is subject to change without notice. Precision Digital Corporation makes no representations or warranties with respect to the contents hereof, and specifically disclaims any implied warranties of merchantability or fitness for a particular purpose.

PD688 Approvals for Hazardous Locations

FM Approved & CSA Certified as intrinsically safe with entity for use in Class I, Div 1, Groups ABCD; Class II, Div 1, Groups EFG; Class III, Div 1; Class I, Zone 0, Group IIC; T-code = T4. Non-incendive: Suitable for use in Class I, Div 2, Groups ABCD; Class II, Div 2, Groups FG; Class III, Div 2.
Entity Parameters: Ui: 30 V; Ii:175 mA; Ci: 0; Li: 0; Pi: 1.0 W

ATEX II 1G, Ex ia IIC T4, IP65, Ta = -40°C to 65°C

Note: Installation must be performed in accordance with Control Drawing LIM688-2

ORDERING INFORMATION

QuickShip Program Eligible Product Blue dot denotes item as a Quick Ship product

Loop Leader PD683 Models

Check Stock for All
Model Description Price  
QuickShip Program Eligible Product PD683-0K0 Loop-Leader Panel Meter
Input: 4-20 mA
Power: Loop-Powered
Display: 0.6" High, Backlight 5 Digits LCD
194.00 Buy Now
 

Loop Leader PD688 Models

Check Stock for All
QuickShip Program Eligible Product PD688-0K0 Loop-Leader Panel Meter
Input: 4-20 mA
Power: Loop-Powered
Display: 0.6" High, Backlight 5 Digits LCD
FM Approved & CSA Certified
319.00 Buy Now

DOCUMENTATION

Precision Digital Return User Form

Previously registered users of the site can access documentation by entering their email address and password below and selecting Login. Unregistered users can access documentation by selecting New User and entering registration information.

Email:
Password:



Add New User Information Forgot Password




Precision Digital Corporation Since 1974 ISO 9001 Certified
Precision Digital Site Map Precision Digital Privacy Policy Precision Digital Copyright 2000-2013