Gefran PME12 Data Sheet

PME12

RECTILINEAR DISPLACEMENT TRANSDUCER WITH MAGNETIC
DRAG

Main features

• Rectilinear displacement transducer without drag shaft,
completely water-tight (IP67), designed to work in humid
environments (CEI EN 60529)

• The PME series has an external magnetic actuator lin­ked to an internal measurement cursor

• The magnetic cursor replaces the drag shaft used
in traditional displacement transducers, making the
instrument even more compact

• Installation is made simpler because there is no variation
in the electrical output signal outside the Theoretical
Electrical Stroke

• The instrument can be used in compressed air
applications with max. working pressure of 20 bar.

MECHANICAL DIMENSIONTECHNICAL DATA

Useful electical stroke (C.E.U.) 50 to 1000mm
Independent linearity see table
(within C.E.U.)
Resolution infinite
Repeatability ≤ 0.08 mm
Hysteresis ≤ 0.25mm
Electrical connection PME12 F 1 m 3-pole shielded cable
PME12 C 3-pole connector M8
Protection level IP67 (CEI EN 60529)
Life > 25x10
> 100x10

6

mstrokes, or

6

maneuvers, whicheverl
is less
Displacement speed ≤ 5 m/s
Max. acceleration ≤ 10m/s

2

displacement
Shock test DIN IEC68T2-27 50g, 11ms single stroke
Vibrations DIN IEC68T2-6 12g, 10...2000Hz
Cursor dragging force ≤ 0.5 N
Displacement sensitivity 0.05 to 0.1 mm
(no hysteresis)
Tracking error See table
Tolerance on resistance ±20%
Recommended cursor < 0.1 µA
current
Maximum cursor current in
case of bad performances 10mA
Maximum applicable voltage See table
Electrical isolation >100MΩ at 500V=, 1bar, 2s
Dielectric strenght < 100µA at 500V~, 50Hz, 2s, 1bar
Dissipation at 40°C See table
(0W at 120°C)
Thermal coefficient -200 +200 ppm/°C typical
of resistance
Actual Temperature Coefficient ≤ 5 ppm/°C typical
of the output voltage
Working temperature -30...+100°C
Storage temperature -50...+120°C
Material for transducer case Anodised aluminium, PSU
Material for cursor POM
Mounting Brackets with adjustable distance

Important: All the data reported in the catalogue linearity and temperature coefficients are valid for sensor utilization as a ratiometric device with a max.
current across the cursor circuit Ic ≤ 0.1 mA.

Cable output PME12 F version

Optional bracket
fixing area

Internal thread
M4 depth 4 mm

Connector output PME12 C version

Optional bracket
fixing area

Mouting brackets

Cursor (S) PCUR031

seat for M4 screws
ø 9 depth 4

M8x1
connector

3-pole
cable

held
zone
20 bar

3-pole cable
mt. 2
optional

Cursor (B) PCUR033

M5 hole

depth 10

IP67
held
zone

0.2 bar

Ball joint

MECHANICAL / ELECTRICAL DATA

Acceleration (g)

MODEL

250 300 350 400 450 500 750 800 850 900 950 100050 100 150 200 550 600 650 700

Useful electrical stroke
(C.E.U.) + 1 / -0

Theoretical electrical
stroke (C.E.T.) ± 1

Resistance
(C.E.T.)

Independent linearity
(within C.E.U.)

Dissipation at 40°C
(0W at 120°C)

Max
applicable voltage

Mechanical stroke CM

Case Lenght
(A)

mm

mm

kΩ

±%

W

V

mm

mm

0,1

21

40

ELECTRICAL CONNECTIONS

Connector

output

Connection

side

5

Cable Output

PME12 F

blue

yellow

brown

Cable Output

PME12 C

blue

black

brown

Model

C.E.U. + 1

10 20

0,05

3

60

C.E.U. + 5

C.E.U. + 65

PME12C output

INSTALLATION INSTRUCTIONS

• Make the specified electrical connections (DO NOT use the transducer as a variable resistance)

• When calibrating the transducer, be careful to set the stroke so that the output does not drop below 1% or rise above 99% of the voltage level.

ORDER CODE

Displacement
transducer

3-pole connector output M8 C

PUR 3-pole cable output F
1m

Model

PCUR031 cursor (Standard) S
PCUR033 cursor (Joint) B

Ex.:PME-12-F-0400-S 0000X000XX00XXX

PME 12 displacement transducer, cable output, useful electrical stroke (C.E.U.) 400 mm, PCUR031 cursor, no certificate attached, cable
length 1 m.

ACCESSORIES

PME mounting kit, brackets STA001
(2 pieces included in the confection)
Standard magnetic cursor or PCUR031
(1 pieces included in the confection)
Jointed magnetic cursor PCUR033
(1 pieces included in the confection)

ACCESSORIES (on request)

Female connector +
2 m wired PVC cable CAV010

P M E 1 2

0 0 0 0 x

No certificate attached 0
Linearity curve to be attached L

TRACKING ERROR

2

1,8

1,6

1,4

1,2

Error (mm)

1

0,8

0,6

0,4

0,2

246810 12 14 16 18 20 22

x 0 0 0 x x x x

Version F cable length

1 mt cable (standard) 00
2 mt cable 02
3 mt cable 03
4 mt cable 04
5 mt cable 05
10 mt cable 10
15 mt cable 15

GEFRAN spa reserves the right to make any kind of design or functional modification at any moment without prior notice

DTS_PME12_09-2012_ENG