PRECISION DIGITAL Loop Leader PD683 Manuale utente

PD683 & PD688

LOOP-POWERED METERS

PRECISION DIGITAL CORPORATION

19 Strathmore Road • Natick MA 01760 USA

Tel (800) 343-1001 • Fax (508) 655-8990 www.predig.com

• 2 V drop (5.7 V with backlight)

• 5 Digit LCD, 0.6" (15.2 mm) High

• Custom Engineering Units

• 20 Segment Bargraph Display

• Type 4X, NEMA 4X, IP65 Front

• Maximum/Minimum Display

• Linear, Square Root, or Programmable Exponent

Loop-

Powered

Backlight

Standard!

• Non-Volatile Memory – No Battery Needed

PD683 & PD688 Loop-Powered Meters Instruction Manual

Disclaimer

The information contained in this document is subject to change

without notice. Precision Digital makes no representations or war-

ranties with respect to the contents hereof, and specifically disclaims

any implied warranties of merchantability or fitness for a particular

purpose.

Registered Trademarks

NORYL®and LEXAN®are a registered trademarks of General Elec-

tric Company. All other trademarks mentioned in this document are

the property of their respective owners.

Visit our Web Site

http://www.predig.com

PD683 & PD688 Loop-Powered Meters Instruction Manual

INTRODUCTION

The PD688 is an intrinsically safe loop-powered digital meter. The

PD683 is a general purpose loop-powered digital meter for safe area

applications. The four front panel buttons make the setup and pro-

gramming an easy task. Five digits, bargraph, engineering units, and

trend arrows provide a clear and attractive presentation of the process.

The PD688 offers intrinsically safe and non-incendive approvals for

hazardous locations.

The square root and programmable exponent functions allow for condi-

tioning of outputs from non-linear transmitters without adding external

components to the system and the convenience of scaling without a

signal source makes the PD683/PD688 an ideal choice for process dis-

play.

ORDERING INFORMATION

Model Description

PD683-0K0 Loop-Powered Panel Meter for Safe Area

PD684-0K1 Loop-Powered Rate/Totalizer for Safe Area

PD688-0K0 FM & CSA Approved Loop-Powered Panel Meter

PD689-0K1 FM & CSA Approved Loop-Powered Rate/Totalizer

Enclosures and Accessories

Model # of

Meters Description Mounting

PDA2407 1 Plastic NEMA 4X Enclosure Inside Cover

PDA2409 3 Plastic NEMA 4X Enclosure Inside Cover

PDA2410 4 Plastic NEMA 4X Enclosure Inside Cover

PDA2601 1 Stainless Steel NEMA 4X Enclosure Through Door

PDA2602 2 Stainless Steel NEMA 4X Enclosure Through Door

PDA2603 3 Stainless Steel NEMA 4X Enclosure Through Door

PDA2604 4 Stainless Steel NEMA 4X Enclosure Through Door

PDA2605 5 Stainless Steel NEMA 4X Enclosure Through Door

PDA2606 6 Stainless Steel NEMA 4X Enclosure Through Door

PDA2701 1 Steel NEMA 4 Enclosure Through Door

PDA2702 2 Steel NEMA 4 Enclosure Through Door

PDA2703 3 Steel NEMA 4 Enclosure Through Door

PDA2704 4 Steel NEMA 4 Enclosure Through Door

PDA2705 5 Steel NEMA 4 Enclosure Through Door

PDA2706 6 Steel NEMA 4 Enclosure Through Door

PDA2801 1 Plastic NEMA 4X Enclosure Through Cover

PD683 & PD688 Loop-Powered Meters Instruction Manual

Table of Contents

INTRODUCTION------------------------------------------------------------ 3

ORDERING INFORMATION--------------------------------------------- 3

SPECIFICATIONS---------------------------------------------------------- 6

General-------------------------------------------------------------------------------6

Input-----------------------------------------------------------------------------------7

PD688 COMPLIANCE INFORMATION------------------------------- 8

Ratings and Approvals ---------------------------------------------------------8

SAFETY INFORMATION ------------------------------------------------- 8

INSTALLATION------------------------------------------------------------- 9

Unpacking---------------------------------------------------------------------------9

Panel Mounting--------------------------------------------------------------------9

PD683 Connections------------------------------------------------------------ 10

4-20 mA Input Connections------------------------------------------------ 11

SETUP AND PROGRAMMING ----------------------------------------12

Front Panel Buttons and Status Indicators---------------------------- 13

Display Functions and Messages----------------------------------------- 14

Main Menu ------------------------------------------------------------------------ 15

Setting Numeric Values ------------------------------------------------------ 15

Setting Up the Meter (setup)------------------------------------------------ 16

Setting the Decimal Point (deC.pt) --------------------------------------- 16

Setting the Units Display (units)----------------------------------------- 17

Programming the Meter (prog)--------------------------------------------- 18

Scaling the Meter (sCalE)-------------------------------------------------- 19

Calibrating the Meter (Cal)------------------------------------------------- 20

Recalibrating Internal Sense Circuitry (ICal) ------------------------- 20

Setting Up the Bargraph (GrapH)----------------------------------------- 21

Setting Up the Password (pass) ------------------------------------------- 22

Locking the Meter ------------------------------------------------------------ 22

Unlocking the Meter---------------------------------------------------------- 23

PD683 & PD688 Loop-Powered Meters Instruction Manual

Advanced Features Menu---------------------------------------------------- 24

Advanced Features Menu & Display Messages---------------------- 25

Functions (lnear, Squar, Prog.E, Cutof) -------------------------------- 26

Contrast (contr)-------------------------------------------------------------- 27

Noise Filter (fltEr)---------------------------------------------------------- 27

Noise Filter Bypass (bypAs) ----------------------------------------------- 27

Internal Calibration (ICal)-------------------------------------------------- 28

Information Menu (info)---------------------------------------------------- 29

OPERATION----------------------------------------------------------------30

Front Panel Buttons Operation -------------------------------------------- 30

Maximum/Minimum Readings---------------------------------------------- 31

MOUNTING DIMENSIONS----------------------------------------------32

Reset Meter to Factory Defaults------------------------------------------- 33

Factory Defaults & User Settings----------------------------------------- 34

TROUBLESHOOTING----------------------------------------------------35

Troubleshooting Tips --------------------------------------------------------- 35

QUICK USER INTERFACE REFERENCE GUIDE----------------36

OTHER PRECISION DIGITAL PRODUCTS------------------------39

Table of Figures

Figure 1. Panel Cutout and Mounting.................................................9

Figure 2. Rear View ............................................................................10

Figure 3. PD683 Input Connections with Backlight.........................11

Figure 4. PD683 Input Connections without Backlight ...................11

Figure 5. Meter Dimensions – Side View..........................................32

Figure 6. Case Dimensions – Top View............................................32

PD683 & PD688 Loop-Powered Meters Instruction Manual

SPECIFICATIONS

Except where noted all specifications apply to operation at +25°C.

General Five digits

(-99999 to 99999) 0.60" (15.2 mm) high, 7-segment,

automatic lead zero blanking.

Four digits

(Engineering Units) 0.25" (6.4 mm) high, 14 segment.

Bargraph 20-segment, 0% to 100% indication.

Trend arrows Up and down trend indication.

DISPLAY

Backlight 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 Recalibration is 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.

Without Backlight With BacklightVOLTAGE DROP

2.0 V maximum 5.7 V maximum

NORMAL MODE

REJECTION 64 dB at 50/60 Hz

ENVIRONMENTAL Operating temperature range: -30 to 65°C (-40°C allowed)

Storage temperature range: -40 to 65°C

Relative humidity: 0 to 90% non-condensing

CONNECTIONS Removable screw terminals accept 12 to 22 AWG wire

ENCLOSURE &

MATERIALS 1/8 DIN, high impact plastic, UL 94V-0, color: gray

GE Plastics NORYL® N190X Polyphenylene Ether &

Polystyrene blend (PPE PS) Resin

GE Plastics LEXAN® HP92W Polycarbonate (PC) Film

PD683 & PD688 Loop-Powered Meters Instruction Manual

MOUNTING 1/8 DIN panel cutout required. Two panel mounting

bracket assemblies provided

TIGHTENING

TORQUE Screw terminal connectors: 4.5 lb-in (0.5 Nm)

Mounting screws: 8.0 lb-in max. (0.9 Nm)

OVERALL

DIMENSIONS 2.45" x 4.68" x 4.19" (62 mm x 119 mm x 106 mm)

(H x W x D)

WEIGHT 8.0 oz (227 g)

WARRANTY 3 years parts and labor

EXTENDED

WARRANTY 1 or 2 years, refer to Price List for details

Input

ACCURACY ±0.03% of span ±1 count,

square root and programmable exponent: 10-100% FS

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

DECIMAL POINT Up to four decimal places:

d.dddd, dd.ddd, ddd.dd,dddd.d,or ddddd

CALIBRATION

RANGE An Error message will appear if input 1 and input 2 signals

are too close together.

Input

Range Minimum Span

Input 1 & Input 2

4-20 mA 0.40 mA

Without Backlight With Backlight

EQUIVALENT

RESISTANCE 125 Ω@ 20 mA 315 Ω@ 20 mA

INPUT

OVERLOAD Over current protection to 2 A max.

PD683 & PD688 Loop-Powered Meters Instruction Manual

PD688 COMPLIANCE INFORMATION

Ratings and Approvals

FM Class I, Div 1, 2, Groups ABCD

Class II, Div 1, Groups EFG

Class II, Div 2, Groups FG

Class III, Div 1, 2

Class 1, Zone 0, Group IIC

CSA Class I, Div 1, 2, Groups ABCD

Class II, Div 1, Groups EFG

Class II, Div 2, Groups FG

Class III, Div 1, 2

Class 1, Zone 0, Group IIC

PD688 Installation must be performed in

accordance with Control Drawing

LIM688-2

SAFETY INFORMATION

CAUTION: Read complete

instructions prior to installation

and operation of the meter.

Installation and service should be performed only by trained

service personnel. Service requiring replacement of internal

components must be performed at the factory.

PD683 & PD688 Loop-Powered Meters Instruction Manual

INSTALLATION

There is no need to remove the meter from its case to com-

plete the installation, wiring, and setup of the meter.

Unpacking

Remove the meter from box. Inspect the packaging and con-

tents for damage. Report damages, if any, to the carrier.

If any part is missing or the meter malfunctions, please contact

your supplier or the factory for assistance.

Panel Mounting

• Prepare a standard 1/8 DIN panel cutout – 3.622" x 1.772" (92 mm

x 45 mm). Refer to Mounting Dimensions, page 32 for more details.

• Clearance: allow at least 4" (102 mm) behind the panel for wiring.

• Panel thickness: 0.04" - 0.25" (1.0 mm - 6.4 mm).

Minimum steel/stainless steel panel thickness to maintain watertight

rating: 0.06" (1.5 mm).

Note: A steel or stainless steel panel rather than plastic is

recommended in cases where a watertight or dust-tight seal is

required between the meter and the panel.

• Remove the two mounting brackets provided with the meter (back-off

the two screws so that there is ¼" (6.4 mm) or less through the

bracket. Slide the bracket toward the front of the case and remove).

• Insert meter into the panel cutout.

• Install mounting brackets and tighten the screws against the panel.

To achieve a proper seal, tighten the mounting bracket screws

evenly until meter is snug to the panel along its short side. DO NOT

OVER TIGHTEN, as the rear of the panel may be damaged.

Panel

Gasket

Mounting

Bracket Mounting

Screw

Removable

Connector

3.622" (92mm)

1.772"

(45mm) Panel Cutout

to DIN 43700

Square Corners to 0.060"

(1.5mm) Max Radius

Tolerances:

A: +0.032 (+0.8mm)

-0.000 (-0.0mm)

B: +0.024 (+0.6mm)

-0.000 (-0.0mm)

Figure 1. Panel Cutout and Mounting

PD683 & PD688 Loop-Powered Meters Instruction Manual

PD683 Connections

Signal connections are made to a four-terminal removable connector. This

section is only intended for PD683.

PD688 Installation must be performed in accordance with Control

Drawing LIM688-2 in order to meet agency approval ratings.

Observe all safety regulations. Electrical wiring

should be performed in accordance with all agency

requirements and applicable national, state, and

local codes to prevent damage to the meter and

ensure personnel safety.

S+ S- B+ B-

Figure 2. Rear View

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