Electronic vibration switch, internal icp accel., 0-3 ips pk, ac powered, 10a form c relays, class 1 div 1, groups b,c,d, dual 1/2" npt ports (38 pages)
Summary of Contents for PCB Piezotronics IMI SENSORS 685B0001A10
Page 1
Model 685B0001A10 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: imi@pcb.com Web: www.imi-sensors.com...
Page 2
Piezotronics, user servicing or repair is critical test. not recommended and, if attempted, may void the factory warranty. Routine PCB Piezotronics maintains an ISO- maintenance, such as the cleaning of 9001 certified metrology laboratory and electrical connectors, housings, and offers calibration services, which are...
Page 3
50% of the general contact numbers are: replacement cost returned item(s). PCB will provide a price PCB Piezotronics, Inc. quotation replacement 3425 Walden Ave. recommendation for any item whose Depew, NY14043 USA repair costs would exceed 50% of...
Table of Contents Introduction ........................Page 3 General Features Specifications ........................Page 4 Installation and Wiring ..................... Page 5 Installation & Dimensional Drawings Pin Location Diagram- Models with Internal Accelerometer and Triac Relays Pin Location Diagram- Models with Internal Accelerometer and Electromechanical Relays Pin Location Diagram- Models with External Accelerometer and Triac Relays Pin Location Diagram- Models with External Accelerometer and Electromechanical Relays Configuring the 685B ......................
Introduction The 685B-Series is an electronic vibration switch designed to monitor vibration levels and trip an alert when a specified limit is exceeded. A second onboard relay trips an alarm that can be used to shut down a piece of equipment or act as a secondary alert level.
Installation and Wiring Installation The 685B-Series is designed to be mounted directly on the equipment to be monitored using a four-bolt pattern. There are also options to retrofit existing 3 bolt pattern installations. (Model 080A209 mounting plate required- see optional accessories on page 13). Use grease between all surfaces to insure specified frequency response, otherwise performance will be degraded.
Page 11
Standard Model Dimension Drawing with ½” NPT Conduit Hubs Inch (mm) PAGE 6...
Page 12
Explosion Proof Model 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 7...
Connector and Pinout Diagram The 685B-Series uses screw terminal connectors for all input and output connections. Strip off 0.3” (8mm) of insulation from the connection wire ends. Feed the wire through the access ports, and terminate the wire in the correct location. Once connected, tug lightly on the wire to confirm connection is secure. Pin Location Diagram- Models with Internal Accelerometer and Triac Relays Category Description...
Pin Location Diagram- Models with Internal Accelerometer and Electromechanical Relays Category Description + Power AC Power - Power/Common Earth Ground (Also connect to enclosure safety lug) Normally Closed (when dipswitch is in de-energized position) Alarm Output Common connection Normally Open (when dipswitch is in de-energized position) Normally Closed (when dipswitch is in de-energized position) Alert Output Common connection...
Pin Location Diagram- Models with External Accelerometer and Triac Relays ® When the external 100mV/g ICP sensor option is specified, an additional terminal block location is added to the 685B-Series. The external accelerometer is connected to +Sensor and –Sensor positions as indicated in the above figure and on the product label locate inside the top cover.
Pin Location Diagram- Models with External Accelerometer and Electromechanical Relays ® When the external 100mV/g ICP Sensor option is specified, an additional terminal block location is added to the 685B-Series. The external accelerometer is connected to +Sensor and –Sensor positions as indicated in the above figure and on the product label locate inside the top cover.
Configuring the 685B-Series Internal Diagram- Models with Triac Relays The internal diagram displays the location of the control features for the triac versions of the 685B-Series. The alert and alarm set points are adjusted via the single turn potentiometers. The alarm relay is set using the first potentiometer, and the alert relay is set using the third.
Internal Diagram- Models with Electromechanical Relays The internal diagram displays the location of the control features for the relay versions of the 685B-Series. The alert and alarm set points are adjusted via the single turn potentiometers. The alarm relay is set using the first potentiometer, and the alert relay is set using the third.
Using Calibration Mode The 685B-Series has the unique ability to be calibrated using a 4-20 mA simulator. (IMI Sensors model 699A05, see “Accessories” page) This allows for a much more accurate and quantifiable calibration versus manually attuning the switch. The following steps allow for simple calibration using this configuration. Connect the 4-20 mA simulator signal across the COMM and CAL pins.
Optional Accessories Model 080A209 Adapter Plate To retrofit old style vibration switch bolt patterns PAGE 15...
Page 21
Model 699A05 Portable 4-20 mA Calibrator Provides current output for 685B-Series testing, read-out and calibration purposes. Also receives and displays current signal from 4-20 mA proportional output from the 685B-Series. PAGE 16...
Warning 2 – ESD sensitivity This equipment is designed with user safety in mind; however, the protection provided by the equipment may be impaired if the equipment is used in a manner not specified by PCB Piezotronics, Inc. Caution 1 – ESD sensitivity Cables can kill your equipment.