PCB Piezotronics IMI SENSORS 685A11 Manuale utente

Model 685A11

Electronic Vibration Switch

Installation and Operating Manual

For assistance with the operation of this product,

contact PCB Piezotronics, Inc.

Toll-free: 800-959-4464

24-hour SensorLine: 716-684-0001

Fax: 716-684-3823

E-mail: [email protected]

Web: www.imi-sensors.com

The information contained in this document supersedes all similar information that

may be found elsewhere in this manual.

Total Customer Satisfaction – PCB

Piezotronics guarantees Total Customer

Satisfaction. If, at any time, for any

reason, you are not completely satisfied

with any PCB product, PCB will repair,

replace, or exchange it at no charge. You

may also choose to have your purchase

price refunded in lieu of the repair,

replacement, or exchange of the product.

Service – Due to the sophisticated nature

of the sensors and associated

instrumentation provided by PCB

Piezotronics, user servicing or repair is

not recommended and, if attempted, may

void the factory warranty. Routine

maintenance, such as the cleaning of

electrical connectors, housings, and

mounting surfaces with solutions and

techniques that will not harm the

physical material of construction, is

acceptable. Caution should be observed

to insure that liquids are not permitted to

migrate into devices that are not

hermetically sealed. Such devices should

only be wiped with a dampened cloth

and never submerged or have liquids

poured upon them.

Repair – In the event that equipment

becomes damaged or ceases to operate,

arrangements should be made to return

the equipment to PCB Piezotronics for

repair. User servicing or repair is not

recommended and, if attempted, may

void the factory warranty.

Calibration – Routine calibration of

sensors and associated instrumentation is

recommended as this helps build

confidence in measurement accuracy and

acquired data. Equipment calibration

cycles are typically established by the

users own quality regimen. When in

doubt about a calibration cycle, a good

“rule of thumb” is to recalibrate on an

annual basis. It is also good practice to

recalibrate after exposure to any severe

temperature extreme, shock, load, or

other environmental influence, or prior

to any critical test.

PCB Piezotronics maintains an ISO-

9001 certified metrology laboratory and

offers calibration services, which are

accredited by A2LA to ISO/IEC 17025,

with full traceablility to N.I.S.T. In

addition to the normally supplied

calibration, special testing is also

available, such as: sensitivity at elevated

or cryogenic temperatures, phase

response, extended high or low

frequency response, extended range, leak

testing, hydrostatic pressure testing, and

others. For information on standard

recalibration services or special testing,

contact your local PCB Piezotronics

distributor, sales representative, or

factory customer service representative.

Returning Equipment – Following

these procedures will insure that your

returned materials are handled in the

most expedient manner. Before returning

any equipment to PCB Piezotronics,

contact your local distributor, sales

representative, or factory customer

service representative to obtain a Return

Warranty, Service, Repair, and

Return Policies and Instructions

Materials Authorization (RMA)

Number. This RMA number should be

clearly marked on the outside of all

package(s) and on the packing list(s)

accompanying the shipment. A detailed

account of the nature of the problem(s)

being experienced with the equipment

should also be included inside the

package(s) containing any returned

materials.

A Purchase Order, included with the

returned materials, will expedite the

turn-around of serviced equipment. It is

recommended to include authorization

on the Purchase Order for PCB to

proceed with any repairs, as long as they

do not exceed 50% of the replacement

cost of the returned item(s). PCB will

provide a price quotation or replacement

recommendation for any item whose

repair costs would exceed 50% of

replacement cost, or any item that is not

economically feasible to repair. For

routine calibration services, the Purchase

Order should include authorization to

proceed and return at current pricing,

which can be obtained from a factory

customer service representative.

Warranty – All equipment and repair

services provided by PCB Piezotronics,

Inc. are covered by a limited warranty

against defective material and

workmanship for a period of one year

from date of original purchase. Contact

PCB for a complete statement of our

warranty. Expendable items, such as

batteries and mounting hardware, are not

covered by warranty. Mechanical

damage to equipment due to improper

use is not covered by warranty.

Electronic circuitry failure caused by the

introduction of unregulated or improper

excitation power or electrostatic

discharge is not covered by warranty.

Contact Information – International

customers should direct all inquiries to

their local distributor or sales office. A

complete list of distributors and offices

can be found at www.pcb.com.

Customers within the United States may

contact their local sales representative or

a factory customer service

representative. A complete list of sales

representatives can be found at

www.pcb.com. Toll-free telephone

numbers for a factory customer service

representative, in the division

responsible for this product, can be

found on the title page at the front of this

manual. Our ship to address and general

contact numbers are:

PCB Piezotronics, Inc.

3425 Walden Ave.

Depew, NY 14043 USA

Toll-free: (800) 828-8840

24-hour SensorLineSM: (716) 684-0001

Website: www.pcb.com

E-mail: [email protected]

DOCUMENT NUMBER: 21354

DOCUMENT REVISION: B

ECN: 17900

SENSORS AND INSTRUMENTATION FOR MACHINE CONDITION MONITORING

Model 685AX1 Electronic Vibration Switch

Operating Guide with Enclosed Warranty Information

3425 Walden Avenue, Depew, New York 14043-2495

Phone (716) 684-0003

Fax (716) 684-3823

Toll Free Line 1-800-959-4IMI

MANUAL NUMBER: 25109

MANUAL REVISION: A

PAGE 2

SENSORS AND INSTRUME

NTATION FOR MACHINE

CONDITION MONITORING

Table of Contents

Introduction...................................................................................................................... Page 3

General Features

Specifications.................................................................................................................. Page 4

Installation and Wiring..................................................................................................... Page 5

Configuring the 685AX1 .................................................................................................. Page 7

ESD Sensitivity................................................................................................................ Page 8

Ordering Information........................................................................................................ Page 9

Warranty/Servicing

Warranty, Service & Return Procedure ......................................................................... Page 10

Customer Service.......................................................................................................... Page 11

PAGE 3

SENSORS AND INSTRUME

NTATION FOR MACHINE

CONDITION MONITORING

Introduction

The Model 685AX1 is an Electronic Vibration Switch designed to monitor vibration levels and trip an alarm when a

specified limit is exceeded. An onboard accelerometer with precision electronics insures reliability and accuracy.

The device comes standard in an Explosion Proof Enclosure.

General Features

 Imbedded Piezoelectric Accelerometer for improved accuracy and frequency response.

 Vibration range can be in Acceleration or Velocity.

 Provides a 5amp, Form C (SPDT), relay output.

 Adjustable trip limit via a single turn potentiometer.

 Accommodates normally open (NO) and normally closed (NC) wiring schemes.

 Continuous or latching relay action.

 Local reset button and remote reset capability.

 LED indicators for Power and Alarm.

 Removable Terminal Blocks for easy wiring.

 Comes standard in an Explosion Proof Enclosure.

 Mounts directly to the equipment being monitored via a supplied mounting bracket.

 Top cover is secured with a socket head cap screw.

 Flexible design allows for various custom requirements.

PAGE 4

SENSORS AND INSTRUME

NTATION FOR MACHINE

CONDITION MONITORING

Specifications

 Power Supply Voltage: …… 10-30Vdc

 Power Supply Current: …… 100mA max.

 Sensor Type: …… Piezoelectric Sensing Element

 Vibration Range: …… 0-10g-peak (0-1ips Optional)

 -3dB Frequency Response: …… 3Hz to 1Khz (180 –60,000cpm)

 Alarm Level Adjust: …… 0-10g-peak

 Turn on Time Delay: …… 3 seconds (factory set)

 Alarm Time Delay: …… 5 seconds (factory set)

 Alarm function Select: …… Latch or Continuous

 Alarm Relay: …… 5A Form C 230Vac/30Vdc

 Operating Temperature Range: …… -13 to 158°F (-25 to 70°C)

 Storage Temperature Range: …… -40 to 257°F (-40 to 125°C)

 Relative Humidity: .….. Nema 4X Rating

 Case Dimension W x H x D: …… 5.1 x 3.0 x 4.0in. (130 x 76.2 x 102mm)

 Weight: …… 1.40lbs. (635grams)

 Case Material: …… Aluminum Alloy

 Input/Output Electrical Connectors: …… Removable Screw Terminals

 Screw Terminal Wire Size: …… 24-14 AWG (0.2-2.5 mm2)

 Enclosure Rating: …… EEx-dIIC T6

 Conduit Hubs (2): …… ½”Threaded NPT Female

 Mounting Hex Screw: …… 5/16-18 x 5/8”

 Mounting Screw Torque: …… 2-5ft. lbs. (3-7Nm)

 LED Indicators:

Power: - Green

Alarm: - Red

 Alarm Setpoint: …… Single Turn Potentiometer (0-100% Full Scale Range)

 Reset Function: …… Momentary Pushbutton Switch and/or Remote to Common.

PAGE 5

SENSORS AND INSTRUME

NTATION FOR MACHINE

CONDITION MONITORING

Installation and Wiring

Installation

The Model 685AX1 is designed to be mounted directly on the equipment to be monitored via a supplied mounting

bracket. Use grease between all surfaces to insure specified frequency response, otherwise performance will be

degraded.

Dimension Drawing

Inch (mm)

WARNING

AC and DC input signals and power supply voltages could be hazardous. DO NOT

connect live wires to screw terminal plugs, and DO NOT insert, remove, or handle screw

terminal plugs with live wires connected.

PAGE 6

SENSORS AND INSTRUME

NTATION FOR MACHINE

CONDITION MONITORING

Connector and Pinout Diagram

The 685AX1 uses plug-in type screw terminal connectors for all input and output connections.

Strip off 0.3”(8mm) of insulation from the connection wire ends. Remove the terminal block from the enclosure,

feed the wire through the access ports, and terminate the wire in the correct location. Do not exceed a torque of

.05 Nm (0.04 lbft). Re-install the terminal block. Use caution when feeding the wire into the device since the circuit

board is exposed at the access ports. R

This assembly connection method allows devices to be exchanged easily and the electrical connection to be

visibly isolated.

Pin Location Diagram

Pin Descriptions:

DC Power –Pins 1 to 3:

T1 +Power

T2 -Power/Common

T3 Earth Ground –must be wired to this terminal.

Remote Reset –Pin 4:

T4 Activated by connection to -Power/Common

Relay Output –Pins 5 to 7:

T5 Normally Open

T6 Common

T7 Normally Closed

PAGE 7

SENSORS AND INSTRUME

NTATION FOR MACHINE

CONDITION MONITORING

Configuring the 685AX1

Internal Diagram

The internal diagram displays the location of the control features for the 685AX1. The alarm setpoint is adjusted

via a single turn potentiometer. Relay operation is selected for either latch or continuous. And the device can be

locally reset after an alarm condition has been corrected.

The control features of the vibration switch are accessible by removing the socket head cap screw and turning the

top cover counterclockwise.

Warning

Only make adjustments to the Alarm Setpoint Potentiometer. The additional potentiometer (when equipped) is

used for factory calibration and adjusting them will require return of the 685AX1 to the factory for recalibration.

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