PRECISION DIGITAL Loop Leader PD683 User manual

5 DIGIT LOOP-POWERED PANEL METERS
WITH LOOP-POWERED BACKLIGHT
Precision Digital corPoration
www.predig.com
Model PD683 General Purpose
Model PD688 Hazardous Area
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 & Bargraph
Linear, Square Root, or Programmable Exponent
Maximum & Minimum Display
Operating Temperature Range -30 to 65°C
Intrinsically Safe & Non-Incendive
HART Protocol Transparent
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Model PD688 Only
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Loop Leader
TM
Series

MODEL PD683 & PD688 LOOP-POWERED PANEL METERS
2
KEY FEATURES
Through significant innovation 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’redesignedfordemandingprocesscontrolapplications.Standard
features include a full 5 digit backlit display with bargraph, on-screen
custom engineering units, and max/min display 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.
4-20 mA Input Connections
S+ S- B+ B-
4-20 mA
Transmitter
Power
Supply
S+ S- B+ B-
4-20 mA
Transmitter
Power
Supply
Wiring with Backlight
Wiring without Backlight
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
zero when the flow rate drops below a user selectable value.
Displays Flow Rate
User Selectable Low-Flow Cutoff
Only 2 Calibration Points Required
FLOW
Programmable Exponent
The programmable exponent function is used to linearize the level
signal in open channel flow applications using weirs and flumes
and display flow rate in engineering units.
4-20 mA output
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Trend Arrow
5 Digits, 0.6” High
Bargraph
Engineering Notation
Custom Engineering Units
Backlight is Standard
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MODEL PD683 & PD688 LOOP-POWERED PANEL METERS
3
PD688 Intrinsically Safe Wiring
Installation must be performed in accordance with Control
Drawing LIM688-2.
<1 ohm to Ground
HAZARDOUS AREA NON-HAZARDOUS AREA
I.S. GROUND
S+ S- B+ B-
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Transmitter
I.S. Barrier
<1 ohm to Ground
HAZARDOUS AREA NON-HAZARDOUS AREA
I.S. GROUND
S+ S- B+ B-
+
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Transmitter
I.S. Barrier
Loop
Input
Loop
Input
Loop Input with Backlight
Loop Input without Backlight
OPTIONAL ENCLOSURES
SETUP & PROGRAMMING
Easy Setup
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
9.2846
GPS
s et up pr oG pas s
Run
Mode
Advanced Features Menu
Tosimplifythesetupprocess,functionsnotneededformostapplications
are located in the Advanced Features menu. Press and hold the Menu
button for five seconds to access the advanced features of the meter.
I Cal
Press Enter/Ack to Access
Menu or to Accept Setting
bypas
contr
f l t er
t r end
Press Up to Scroll Menu and
to Increment Digit Value
Press Right to Select Next Digit
Press Menu to Exit at any Time
f unc t
Press and hold for five seconds
i nf o
9.2846 GPS
Run Mode
INSTALLATION
There is no need to remove the meter from its case to complete the
installation, wiring, and setup of the meter.
Mounting Dimensions Units: Inch (mm)
3.61"
(92mm)
2.50"
(64mm)
4.68"
(119mm)
1.76"
(45mm)
0.59"
(15mm) 3.2"
(81mm)
2.45"
(62mm)
Notes:
1. Panel cutout required: 3.622 x 1.772 (92 x 45)
2 Panel thickness: 0.040 – 0.250 (1.0 – 6.4)
3. Mounting brackets lock in place for easy mounting
PDA2801 low-cost
NEMA 4X enclosure
for one PD683 meter
NEMA 4X enclosures
are available in plastic,
steel, & stainless steel
for one to six PD683
meters
Go to
www.predig.com
for complete details

www.predig.com
Precision Digital corPoration
19 Strathmore Road • Natick MA • 01760 • USA • Tel: [phone] • Fax: [phone]
LDS688_D 11/06
SPECIFICATIONS
Except where noted all specifications apply to operation at +25°C.
General
MODEL PD683 & PD688 LOOP-POWERED PANEL METERS
YOUR LOCAL DISTRIBUTOR IS:
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 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 without 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 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.
TighteningTorque: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
* Below -30°C the LCD becomes less readable. See application note AN-1005.
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 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
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
Note: Installation must be performed in accordance with Control Drawing LIM688-2
ORDERING INFORMATION
Model Description
PD683-0K0 Loop Leader™PLI Panel Meter for Safe Area
PD688-0K0 Loop Leader™PIH Panel Meter FM & CSA
Enclosures
Model Meters Description Mounting
PDA24XX 1 - 4 * Plastic NEMA 4X Inside Cover
PDA26XX 1 - 6 * Stainless Steel NEMA 4X Through Door
PDA27XX 1 - 6 * Steel NEMA 4X ThroughDoor
PDA2801 1 Low-cost NEMA 4X ThroughCover
Note: XX = the last two digits of the model number.
* Go to www.predig.com to find individual model numbers
Services
Model Description
PDN-CAL 2-Point Calibration
PDN-CERTCAL Certificate of Calibration
PDN-CERTCAL2 Certificate of Calibration with Data
PDN-LTCAL Lifetime Annual Recertification(shipped back same day)
PDN-LTCAL2 Lifetime Annual Recertification(shipped back next day)
PDN-LTCAL5 LifetimeAnnualRecertification(shippedbackwithin5days)
PDN-CERTCON Certificate of Conformance
PDN-CSETUP Custom Setup
PDN-ONEDAYRTN One-Day Turnaround Service
PDN-EXTWRNTY1-0 Extended Warranty 1 Year
PDN-EXTWRNTY2-0 Extended Warranty 2 Years
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Loop Leader
TM
Series
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. ©2006 Precision Digital Corporation. all rights reserved