VIBRATION MONITORING EQUIPMENT FOR PROCESS CONTROL SYSTEMS Available Options
Option “RV”— Raw Vibration (Analog Acceleration) Output Signal (e.g.,RV640A01) Option “ HT ”- High Temperature Range (e.g., HT640B01) >
Option “HT” (High Temperature) provides an increased operatingtemperature range on certain models by providing slightly differ-
ent microelectronic circuitry. The standard operating temperaturerange for the Series 640 sensors is +185 °F (+85 °C). By selectingthe “HT” option, the temperature range is increased to +257 °F
(+125 °C). Option “RV”— Raw Vibration (Analog Acceleration) Output Signal (e.g.,RV640A01) Option “ RV ”- Raw Vibration (Analog Acceleration) Output Signal (e.g., RV640B01) >
Option “RV” (Raw Vibration) provides a third connector pin, orintegral cable lead, upon which a 100 mV/g (10.2 mV/(m/s 2 )) ana-log acceleration signal is provided. This analog signal is useful for
frequency spectrum analysis and machinery fault diagnostic pur-
poses. (Also available with “EX” hazardous area approval option.) Pin A: +4-20 mAPin B: -4-20 mA
Pin C: Analog Acceleration (Sensor connector shown) Option “ TO ” Temperature Output Signal (e.g., TO640B01) >
Option “TO” (Temperature Output) provides an integral tempera-ture sensor and two additional connector pins, or integral cableleads, upon which an additional 4-20 mA output for temperature measurement is provided. This output signal corresponds to a
temperature range from -40 to +257 ºF (-40 to +125 ºC) with an overall accuracy of ±5% FS. Pin A:+4-20 mA VibrationPin B:-4-20 mA Vibration
Pin C:+4-20 mA Temperature
Pin D:-4-20 mA Temperature(Sensor connector shown) Option “ EX ” Hazardous Area Approval (e.g., EX640B01, EXRV640B01) >
Option “EX” (Hazardous Area Approval) provides ATEX and/or CSAcertifications for hazardous area use. See www.imi-sensors.com or
www.pcb.com for full details of approved environments for specif-
ic models. Vibration transmitters monitor vertical pumps in a water treatment facility
ICP Using ICP ® Industrial accelerometers with 4-20 mA Loops ICP ® Sensor ExcitationAnalog Vibration Signal4-20 mA Output Signal Existing ICP ® accelerometers may be easily adapted for use into 4-20 mA process loops with a transmitter that converts their raw
analog output into a 4-20 mA signal, which is proportional to rms
or peak vibration. A variety of transmitters are available to sup-
port this technique and are shown on the back of this brochure. PLC ® Accelerometer Model 682A03 Transmitter
Bearing vibration monitoring on an electric motorVibration levels are monitored at the control room