Fluke VIB 6.631 Installation And Operations

FUNCTION
The sensor acquires the signal optically using a red laser. The
laser beam exits from the sensor head and hits a measuring
mark on the rotating shaft. The measuring mark can be
light-increasing (e.g., reflective foil VIB 3.306) or light-re-
ducing (contrast mark, e.g., black line on bright surface).
Whenever the sensor acquires a brightness difference, it
outputs an electrical pulse. Based on the repetition rate of
the voltage pulses, the measuring device calculates the shaft
speed.
Signal profile
5 V
0 V
Light-increasing measuring mark:
Signal rises from 0 V to 5 V.
5 V
0 V
Light-decreasing measuring mark:
Signal drops from 5 V to 0 V.
MAINTENANCE
No maintenance is possible for this sensor. Moisten a clean,
lint-free cloth with water to clean the optical lens. Avoid
direct contact with the lens. Do not use alcohol for cleaning!
TRANSPORTATION AND STORAGE
• Put the sensor, cable and stand in the measuring device
case.
• Short-circuit the magnetic pole at the stand using the
washer.
TECHNICAL DATA
PARAMETER VIB 6.631 / VIB 6.631 EX
Measuring principle Optical
Measuring range 3 to 120,000 rpm
Temperature range -20 °C ... +50 °C
Power supply < 5.8 V (from measuring device)
Output 5 V (TTL)
Laser wavelength 630 - 680 nm (red)
Laser class 2 (DIN EN 60825-1, 2014)
Connection Trigger cable VIB 5.432-2,9
Degree of protection IP 65
Weight 76 g
Dimensions (L x D) 125 mm x 34 mm
Marking
II 2 G Ex ib op is IIC T4
Information regarding EX protection
Sensor VIB 6.631 EX is only provided for the "connection to
a corresponding measuring device / operating equipment
with separate EC type-examination certificate" or for the
"connection to certified intrinsically safe circuits taking into
account the maximum values":
U = 12 V DC
i
P = 600 mW
i
I = 160 mA
i
C = 328 nF
i
L = negligibly small
i
The information in type-examination certificate Z elm 1 0
ATEX 0429 must be observed (www.pruftechnik.com). Fur-
thermore, the European Installation Regulations (EN 60079-
14) in the current version must be observed!
Fluke Deutschland GmbH
Freisinger Str. 34
85737 Ismaning, Germany
+ 49 89 99616-0
www.pruftechnik.com
Laser Trigger
RPM Sensor
VIB 6.631, VIB 6.631 EX
Installation and Operation