PRECISION DIGITAL PD661 Manual de usuario

MODEL PD660 NEMA 4X

LOW COST 3½ DIGIT LOOP-POWERED METERS

MODEL PD661 EXPLOSION-PROOF

• 4-20 mA Input

• 3½ Digit Display

• Loop-Powered Backlight Option

• Operates from -40 to 80°C

www.predig.com

PRECISION DIGITAL CORPORATION

SPECIFICATIONS

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

General

Input: 4-20 mA @ 24 VDC maximum

Display: 0.5" (12.7 mm) LCD, 3½ digits; 1999

Accuracy: ±0.1% FS ±1 count

Decimal Point: User selectable decimal point

Calibration: 2 step; non-interacting zero and span

Calibration Range: 4 mA input: -500 to +500;

20 mA input: between 20 and 2000 above 4 mA display

Maximum Voltage Drop: 1.5 VDC @ 20 mA;

3.5 VDC @ 20 mA with backlight option

Display Update Rate: 2.5/second

Loop-Powered Backlight Option: Factory installed only. Powered

directly from the 4-20 mA loop, no batteries required. The display

brightness will increase as the input signal current increases.

Connections: Removable screw terminals accept 12 to 22 AWG

Operating Temperature: -40 to 80°C

Storage Temperature: -40 to 80°C

Relative Humidity: 0 to 90% non-condensing

Approvals: The PD661-N-EX and PD661-B-EX are FM Approved

& CSA Certified as explosion-proof for Class I, Division 1,

Groups B, C, & D; dust-ignition proof for Class II, Division 1,

Groups E, F, & G; and Class III hazardous (classified) locations.

PD660 Enclosure: Impact-resistant ABS plastic body, color: gray, clear

polycarbonate cover with blue faceplate; NEMA 4X, IP67; ½" conduit

hole provided at base.

PD660 Weight: 9.3 oz (264 g)

PD661 Enclosure: Explosion-proof, cast aluminum with glass window,

0.3% max copper content, corrosion resistant polyester powder

coating, color: safety blue. NEMA 4X, 7, & 9, IP66; FM Approved

& CSA Certified: Class I, Division 1, Groups B, C, & D, Class II,

Groups E, F, & G, Class III hazardous

outdoor (Type 4X) locations.

Two ½" NPT holes provided; mounts directly to conduit.

PD661 Weight: 3.1 lb (1.4 kg)

Warranty: 2 years parts & labor

Extended Warranty: 1 or 2 years, refer to Price List for details.

DISCLAIMER: The information contained in this document is subject to change

without notice. Precision Digital 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.

ORDERING INFORMATION

Model Description

PD660-N* NEMA 4X Loop-Powered Meter

PD660-B NEMA 4X Loop-Powered Meter with Loop-Powered Backlight

PD661-N* Explosion-Proof Loop-Powered Meter

PD661-B Exp-Proof Loop-Powered Meter with Loop-Powered Backlight

PD661-N-EX FM Approved & CSA Certified Explosion-Proof Meter

PD661-B-EX FM & CSA Exp-Proof Meter with Loop-Powered Backlight

*Quick Shipment Program product, shipped within 2 working days.

Accessories

PDA6604 Panel Mounting Kit for PD660 (No NEMA 4X Seal to Panel)

PDA6845 2" Pipe Mounting Kit for PD660

PDA6845-SS 2" Pipe Mounting Kit Stainless Steel for PD660

PDA-SSTAG Stainless Steel Tag

YOUR LOCAL DISTRIBUTOR IS:

Services

PDN-CSETUP Custom Setup

PDN-CAL 2-Point Calibration

PDN-CERTCAL Certificate of Calibration

PDN-CERTCAL2 Certificate of Calibration with Data

PDN-LTCAL Lifetime Calibration with Annual Recert. - See Price List for Details

PDN-EXTWRNTY Extended Warranty Services - See Price List for Details

Balance Control (factory adjust only)

Calibration

Control

Calibration

Control

Decimal Point

Jumper Array

Ribbon Cable

Connector

R11

R10

BAL

JP1

Calibration

The LO control (R11) is located below the display and the HI control

(R9) is located to the right of the display. Apply a 4 mA signal and

adjust the LO control to display the desired reading. Next, apply a

signal between 16 and 20 mA and adjust the HI control to display

the desired reading. Complete the calibration by making any

minor adjustments to the LO and HI controls.

MOUNTING

PD660

The PD660 can be wall mounted using the mounting holes beneath

the cover screws. It can be panel mounted with the addition of the

PDA6604 panel mount kit. It can also be pipe mounted by using the

PDA6845 or the PDA6845-SS 2" pipe mounting kit.

PD661

The PD661 has no provisions for wall mounting. Installation of

the unit is accomplished by using the two ½" NPT conduit holes

provided with ½" NPT fittings.

DIMENSIONS

PD660

Units: Inches (mm)

Wall

Mounting

Holes

Beneath

Cover

Screws

A: 3.15 (80) C: 2.36 (60) E: 2.56 (65)

B: 4.33 (110) D: 3.54 (90) F: 0.79 (20)

PD661

A: 4.5 (114) B: 4.75 (121) C: 3.75 (95)

SETUP

The only tools needed for calibration are a calibrated current

source, a flat head screwdriver, and a phillips head screwdriver.

Please note that the meter must be disassembled in order to

perform the setup functions.

Disassembly

The calibration controls are located behind the display faceplate.

To access these controls, you must first remove the enclosure

cover and faceplate by doing the following:

PD660: Loosen the four screws on the enclosure cover and remove.

Unscrew the two fasteners that hold the faceplate, then remove.

PD661: Turn the enclosure cover counterclockwise to remove.

Unscrew the two fasteners that hold the faceplate, then remove.

Connections

Field connections are made to the screw terminals located on

the Input Signal Board. To access these screw terminals it is

necessary to remove the Display Board from the Input Signal

Board. First, disconnect the ribbon cable connector from the

Display Board. Next, loosen the two screws located to the left and

right of the LCD that hold the Display Board in place. Finally,

remove the Display Board carefully to avoid contact with any

rough surfaces.

Connect a 4-20 mA input signal to terminal J5 located on the Input

Signal Board as shown below.

Note: When reassembling boards DO NOT over-tighten screws.

CAUTION - DISCONNECT FROM SUPPLY BEFORE OPENING. KEEP COVER TIGHT WHILE CIRCUITS ARE ALIVE.

CONDUIT SEALS MUST BE INSTALLED WITHIN 18" OF THE ENCLOSURE.

ATTENTION - OUVRIR LE CIRCUIT AVANT D’ENLEVEL LE COUVERCLE GARDER LE COUVERCLE BIEN FERME TANT QUE

LES CIRCUITS SONT SOUS TENSION. UN SCELLEMENT DOIT ETRE INSTALLE A MOINS DE 450 mm DU BOITIER.

Decimal Point Selection

Decimal point selection is accomplished using JP1 located behind

the faceplate to the right of the display. Leave jumper on one pin

only for a display of 1999 (default), place the jumper over both

bottom pins for a display of 199.9, middle for 19.99, top for 1.999

Ribbon

Cable

Connector

Display Board

Input Signal Board

Pollution Degree 2

Installation Category II

Screw

Terminal

Connector J5

Loop Power

Supply

Signal Input Connections

4-20 mA

Transmitter

J5 Screw Terminal Connector

Wiring Diagram

LIM660-661_E 11/05

www.predig.com

PRECISION DIGITAL CORPORATION

19 Strathmore Road • Natick MA • 01760 • USA • Tel: (800) 343-1001 • Fax: (508) 655-8990

LOW COST 3½ DIGIT LOOP-POWERED METERS

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