NFM Inc, Santa Monica, CA, USA / Phone:(310) 564-6412 / FAX:(310) 802-3917 / www.nfminc.com
blueline

Data sheet of M25 optical displacement Sensors (LASER, 25 kHz)
(fit to print)

M25L /

0.5

2

4

10

20

100

200

Range (mm)

± 0.25 

± 1 

± 2 

± 5 

± 10 

± 50 

± 100 

Reference distance (mm)

2 (24)

24

24

45

65

220

340

Linearity error* (µm)

2

6

12

30

60

300

600

Resolution* (Noise) (µm)

0.1

0.5

1

3

6

30

60

Spot diameter (mm)

0.1

0.2

0.3

0.6

0.9

1.5

2

Case drwg. (head + BOX )

C51

C52

C53

Optional protective cases

N/A

integrated scratch or heat

scratch or heat

Light source

LASER 1 mW, wavelength 675 nm (red)

Internal sample frequency

125 kHz

Safety

Laser Protection Class 2 (1 mW)

Analog
 outputs
Voltage

± 10V, approx. ± 14V

Impedance

< 0.1 Ohm (10 mA max.)

Angle error

0.5%, tilted Object 30°, A-axis

Reaction time

40 µs, 0.2 ms, 2 ms or 20 ms selectable

Bandwidth (-3db)

25kHz, 3 kHz, 250 Hz or 25 Hz

Temp. coeff.

0.03% / °K

Reflected light

+1 to +10 VDC, approx. 0 to +13 VDC

Digital
 outputs
MIN

+24 VDC / 10 mA, active if below MIN, yellow LED on

OK

+24 V/10 mA, active if in-between MIN and MAX levels,grn. LED on

MAX

+24 VDC / 10 mA, active if above MAX, red LED on

Hysteresis

approx. 0.5% from range

Alarm
 outputs
F1

+24 VDC / 10 mA, active if not enough refl. light, yellow LED on

F2

+24 VDC / 10 mA, active if too much refl. light, red LED on

Optional outputs

Other Voltages, Current (4..20mA), Serial (RS232) , Relay , thickness

Ambient light

approx. 20,000 Lux

Isolation voltage

200 VDC, ground to case

Maximum vibration

10g @ 1kHz (sensor head, 20g optional)

Operating temperature

0 to +50°C (32 to 122°F)

Storage temperature

-20 to +70°C (-4 to 158°F)

Humidity

< 90 % RH

Protection class

Sensor head IP 64 , Electronic module IP40

Power supply

+24 VDC, 200 mA (21 to 28 VDC)

Connector ( 25 pin D-Sub )

standard version, relay version (optional)

Sensor cable

2 m

Back (*) Measuring on a white surface - Bandwidth set to 250 Hz Home