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PCA-375 Schaevitz™ Gage Head

Gage head PCA-375

The PCA-375 Series gage heads combine simplicity with the time proven reliability of LVDT (Linear Variable Differential Transformer) technology resulting in a cost effective, long stroke industrial gaging solution. The rugged PCA-375 was specifically designed for operation in harsher industrial environments with minimal available installation space. Measuring just 0.375 inch [9.5 mm] in diameter the PCA-375 affords non-intrusive, slim profile measurements, making it the perfect choice for high density fixtures as well as numerous other industrial applications.

Externally, the PCA-375 is constructed entirely of 300 and 400 Series stainless steel, with a field replaceable chrome plated hardened tool steel contact tip. Electrical termination is via a 2 meter long, shielded, 6 conductor polyurethane jacketed cable. Internally, the simplified one-piece plunger and the precision brass bushing construction increases long term reliability, while the heavy duty return spring insures adequate force to repeatedly extend the plunger.

Designed to service long life cycle applications in the industrial market place, the PCA-375 is ideal for foundries, metal joining operations, process control, or wherever environmentally challenging high reliability gaging is required.

Features

  • Slim profile
  • IEC IP66 rated cable exit
  • Stainless steel construction
  • Long life cycle
  • Heavy duty return spring
  • Connector options available
  • Calibration certificate supplied with each unit

Applications

  • High density gaging fixtures
  • Factory floor SPC applications
  • Process control
  • Metal joining equipment
  • Pressing Applications
  • Steel rolling mills / foundries
  • X-Y Stage Position Feedback

Specifications

Model number Stroke Sensitivity Output at Phase shift Impedance at 10 kHz
 

mV/V per

stroke ends (*)

 

Pri

Sec

 

inch

mm

0.001 inch

mm

mV/V

°

Ohm

Ohm

PCA-375-100

±0.10

±2.54

2.80

110

280

5

400

200

PCA-375-250

±0.25

±6.35

2.07

81

517.5

7

345

420

PCA-375-500

±0.5

±12.7

1.84

72

920

4

264

810

PCA-375-1000

±1.0

±25.4

0.77

30

770

-1

155

450

Wiring Schematic

Wiring of Gage Head PCA-375

Connect Blue and Green wires together for differential output.

Supply voltage:

3.0 Vrms sine wave

Input frequency range:

2.5 ... 10 kHz

Test input frequency:

10 kHz

Linearity (maximum band):

±0.5 % FS

Repeatability:

1.5 µm (60 µinch)

Null voltage, max:

0.5 % FSO

Electrical connection:

6 conductor, shielded PU cable, length 2 m

Operating temperature range:

-40 … +70 °C

Shock survival:

1000 g (11 ms, half sine)

Vibration tolerance:

20 g up to 2 kHz

Housing material:

AISI 400 stainless steel

NEMA IEC60529-Rating:

IP66 (at cable exit), IP60 (at plunger)

Notes:
All values are nominal unless otherwise noted
(*): Unit for output at stroke ends is millivolt per volt of excitation
FS: Full Scale is 2X for ±X stroke
FSO: Full Scale Output is the output at X position for ±X stroke

Mechanical Specification

Dimensions of Gage Head PCA-375

All dimensions in inches, approx. values.

These drawings are for information only and not intended for construction purpose. Please ask for detailed drawings.

Model number Stroke Dimensions, approx. Pre-travel, min. Over-travel, min. Weight, approx.
     

A

B

 

inch

mm

Inch

mm

Inch

mm

Inch

mm

Inch

mm

oz

g

PCA-375-100

±0.10

±2.54

0.39

9.9

1.99

50.6

0.05

1.27

0.05

1.27

1.8

50

PCA-375-250

±0.25

±6.35

0.75

19.0

3.26

82.8

0.07

1.78

0.07

1.78

2.0

56

PCA-375-500

±0.5

±12.7

1.15

29.2

5.25

133.4

0.04

1.02

0.04

1.02

2.5

72

PCA-375-1000

±1.0

±25.4

2.29

58.2

8.95

227.3

0.05

1.27

0.05

1.27

3.2

92