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PC420A-EX Series Explosion-Proof Acceleration Loop Powered Sensor
Brand: Wilcoxon Sensing TechnologiesWilcoxon’s 4-20 mA vibration sensors incorporate an accelerometer, data acquisition circuitry, and vibration transmitter in a rugged industrial housing. The explosion-proof sensor provides a 4-20 mA output signal proportional to the overall acceleration level. The 4-20 mA output is commonly accepted by process control systems including PLC, DCS or SCADA for Effective continuous vibration monitoring. Simplified condition based maintenance can be performed on machinery without the investment and learning curve associated with traditional vibration monitoring systems.
The acceleration-output sensor gives a signal with increased sensitivity to higher frequencies which can help indicate bearing wear and gear mesh conditions. 4-20 mA sensors are specified by their full scale values, where a “-10” sensor is designed with a full scale range of 10 g’s equivalent to 20 mA. By trending overall acceleration, changes can be monitored and when a predetermined increase is reached, an informed decision to shut down machinery can be made.
Features- RMS, peak equivalent or true peak detection
- Explosion proof certified
- Corrosion resistant
- Provides continuous trending of overall machine vibration
- Hermetically sealed
- Reverse wiring protection
- Manufactured in an approved ISO 9001 facility
1 - 9 of 9 Part Numbers
PC420AP-05-EX
- 4-20 mA Output Type - Equivalent Peak Output, Acceleration
- 4-20 mA Full Scale - 5 g
PC420AP-10-EX
- 4-20 mA Output Type - Equivalent Peak Output, Acceleration
- 4-20 mA Full Scale - 10 g
PC420AP-20-EX
- 4-20 mA Output Type - Equivalent Peak Output, Acceleration
- 4-20 mA Full Scale - 20 g
PC420AR-05-EX
- 4-20 mA Output Type - RMS Output, Acceleration
- 4-20 mA Full Scale - 5 g
PC420AR-10-EX
- 4-20 mA Output Type - RMS Output, Acceleration
- 4-20 mA Full Scale - 10 g
PC420AR-20-EX
- 4-20 mA Output Type - RMS Output, Acceleration
- 4-20 mA Full Scale - 20 g
PC420ATP-05-EX
- 4-20 mA Output Type - True Peak Output, Acceleration
- 4-20 mA Full Scale - 5 g
PC420ATP-10-EX
- 4-20 mA Output Type - True Peak Output, Acceleration
- 4-20 mA Full Scale - 10 g
PC420ATP-20-EX
- 4-20 mA Output Type - True Peak Output, Acceleration
- 4-20 mA Full Scale - 20 g
1 - 9 of 9 Part Numbers
Specifications
Approvals & Certifications
- ATEX Ex II 2 G Ex d IIC T3 II 3 G Ex NA IIC T3 -40° C ≤ Ta ≤ 85° C
- CE
- CSA Class I, Div. 1, 2 Grade A, B, C, D Class II, Div. 1, 2 Groups E, F, G Class III T3C Ta = 85° C (185° F) - Max.
Approvals & Certifications
- ISO 9001
Circuit Protection
- Reverse Wiring Protection
Electrical - Free Leads
- Output Leads, 18 AWG: 13 feet (396.24 cm)
Element
- Sensing Element Design: PZT, Shear
Enclosure, Body Material
- 303 Stainless Steel
Environmental Protection
- Corrosion Resistant
- Explosion-proof
Frequency
- Frequency Response (± 10 %): 10 Hz to 1 kHz
- Frequency Response (± 3 dB): 4 Hz to 2 kHz
Loop Resistance
- 100 to 1,000 ohms, Max.
- 700 ohms at 24 Vdc, Max.
Mounting
- 3/8-24 x 3/8 Depth Tapped Hole
NPT Connection
- 1” NPT Male
Power
- Minimum RL Wattage Capability: 0.125 to 0.5 W
Power Requirement
- 2-Wire Loop Power (Voltage at Sensor Terminals): 14-30 Vdc
Repeatability
- ± 2 %
Seal Type
- Hermetic
Seat / Seal Material
- Sealing: Epoxy Sealed
Sensitivity
- Transverse Sensitivity, Max. 5 %
Shock
- Shock Limit: 2,500 G Peak
Temperature Range
- -40° to 85° C (-40° to 185° F)
Turn-On Time
- 4-20 mA Loop: < 10 seconds
Vibration
- Vibration Limit: 250 G Peak