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Meggitt
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PC421 Datasheet Preview

PC421 Datasheet

4-20 mA Loop Powered Sensors

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PC421 pdf
Aerospace
Measurement
Energy
Wilcoxon Research®
Side exit, 4-20 mA Loop Powered Sensors (LPS®)
PC421 series
Key features
The 4-20 mA output of the PC421 series is proportional to vibration. The PC series provides
continuous trending of overall machine vibration and can help guide maintenance. Dynamic signal
output allows spectral vibration measurements using a single sensor. An output of 4 mA indicates
a level of 0 ips or no vibration present for velocity output models and 0 g for acceleration output
models. A full-scale reading of 20 mA indicates that the maximum range (RMS, equivalent peak or
true peak) of the chosen unit, acceleration of velocity, is present.
The dynamic signal output is an optional addition. Any of the base sensor models can also have
dynamic signal output. Adding -DA to a model specifies a dynamic acceleration signal output
(100 mV/g). Adding -DV to a model specifies a dynamic velocity signal output (100 mV/ips). Choice
of output: RMS, equivalent peak, and true peak permits you to choose the sensor that best fits
your industrial requirements.
• True peak output available on
standard versions
• Peak equivalent, true RMS or
true peak output available on
dynamic signal version
• Optional dynamic signal output
• Case isolated
• Hermetically sealed
• ESD-protected
• EMI/RFI shielded
• Reverse wiring protection
• Manufactured in an approved
ISO 9001 and AS9100 facility
Certifications
Connections
Function
ground
loop positive (+)
loop negative (-)
dynamic signal
Connector pin
PC421xx-yy PC421xx-yy-Dz
shell
shell
AA
BB
NA C
Meggitt Sensing Systems
Our energy product competencies and services
Machinery protection | Condition monitoring | Integrated performance monitoring | Partial discharge monitoring | Sensors for extreme environments
Ignition systems | Flame detection and analysis | Industrial monitoring solutions | Nuclear products
99893 Rev C 10/14



Meggitt
Meggitt

PC421 Datasheet Preview

PC421 Datasheet

4-20 mA Loop Powered Sensors

No Preview Available !

PC421 pdf
Aerospace
Measurement
Energy
Wilcoxon Research®
Side exit, 4-20 mA Loop Powered Sensors (LPS®)
PC421 series
Specifications
Output, 4-20 mA
Full scale, 20 mA, ±5%
Frequency response
± 10%
± 3 dB
Repeatability
Transverse sensitivity, max
Output, dynamic
Sensitivity, ±10%
Full scale
Frequency response, ±3 dB
Amplitude nonlinearity, max
Resonant frequency, mounted, nominal
Transverse sensitivity, max
see table 1
10 Hz - 1.0 kHz
4.0 Hz - 2.0 kHz
±2%
5%
PC421xx-yy-DA
100 mV/g
20 g, peak
2.5 Hz - 10 kHz
1%
21 kHz
5%
PC421xx-yy-DV
100 mV/ips
1.5 ips at 1 kHz
2.5 Hz - 2.5 kHz
1%
21 kHz
5%
Power requirements, 2 wire loop power
Voltage, between pins A and B 10 - 30 VDC
Loop resistance1 at 24 VDC, max
700 Ω
Turn-on time, 4-20 mA loop
30 seconds
Grounding
case isolated, internally shielded
Temperature range
-40 to +85° C
Vibration limit
250 g peak
Shock limit
2,500 g peak
Sealing
hermetic
Sensing element design
PZT, shear
Weight
320 grams
Case material
316L stainless steel
Mounting
1/4-28 captive bolt
PC421xx-yy-DA
PC421xx-yy-DV
Output connector
2 pin, MIL-5015 style
3 pin, MIL-5015 style
Mating connector
R6 type
R6G type
Recommended cabling
J9T2A
J9T3A
Notes: 1 Maximum loop resistance (RL) can be calculated by:
RL (max. resistance) = VDC power - 10 V
20 mA
2 Lower resistance is allowed, greater than 10 Ω recommended
3 Minimum RL wattage determined by: (0.0004 x RL)
DC supply
voltage
12 VDC
20 VDC
24 VDC
26 VDC
30 VDC
RL
(max resistance)2
100 Ω
500 Ω
700 Ω
800 Ω
1k Ω
RL
(min watt capability)3
1/8 Watt
1/4 Watt
1/2 Watt
1/2 Watt
1/2 Watt
Note: Due to continuous process improvement, specifications are subject to change without notice.
This document is cleared for public release.
Contact
Meggitt Sensing Systems
20511 Seneca Meadows Parkway
Germantown MD 20876, USA
Tel: +1 (301) 330 8811
Fax: +1 (301) 330 8873
wilcoxon@meggitt.com
www.wilcoxon.com
www.meggitt.com
Meggitt Sensing Systems
Our energy product competencies and services
Machinery protection | Condition monitoring | Integrated performance monitoring | Partial discharge monitoring | Sensors for extreme environments
Ignition systems | Flame detection and analysis | Industrial monitoring solutions | Nuclear products


Part Number PC421
Description 4-20 mA Loop Powered Sensors
Maker Meggitt
Total Page 3 Pages
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