Sirrah TS19 / SI19 - Sway sensor



SIRRAH is a sensor giving angle positions of a hoisting system fitted with an infrared transmitter : to use for sway measurement.
The coordinates are evaluated as plus or minus relative to the axis of the detector.
In its SI19 version, SIRRAH is improved for outside handling applications on container quay crane. 
It is waterproof and insensitive to the ambient infrared.
The infrared beacon transmits I.R. modulated energy waves, which enables a good measure whatever the distance.
The safety measure is total.



SIRRAH fixed on the crane trolley analyses the beacon position fixed on the spreader.
It is the sway sensor function or positioning sensor X,Y of a load.
Its high speed of measure enables itself to enter in a sway readjustment loop. 


SIRRAH is presented in a monolithical way, in a box including optics, electronics and the processor for the measurement control. A calculator or a PLC (not provided) can be directly connected to SIRRAH to enable the use with several softwares.
SIRRAH is associated to one I.R. beacon to put on the spreader. It is independent from the sensor and synchronises itself automatically on SIRRAH.



  Degrees At 5 m in mm At 25 m in mm
Numerical resolution
1/1000 two axis    
Sensor resolution at 200 Hz 10/1000 2 10
Sensor resolution at 20 Hz 3/1000 1 5
Long distance non linearity      
* Angle <2°  <0,05°    
* 2°< angle < 5° <3% of the measurement    
* 5°< angle < 9° <10% of the measurement    

Measurement frequency :   Up to 200Hz in mode 1 “mono beacon”: anti-sway function and X, Y positioning
Output frequency :   Programmable by the outside calculator from 200 Hz to 1Hz
Average of measures :   Programmable by the outside calculator from 1 to 255 values
Detector type :   Optical : View angle of  +/- 9° - Narrow band interferential filters
Infrared source :   880 nm LEDs beacon
Working distance :   From 4 m to 40 m  -   High resolution with beacon ref. BMU-02
    From 4 m to 60 m  -   Low resolution with beacon ref. BMU-02
Communication :   With a serial line computer : RS422 or RS232 or with a Profibus interface
Power supply :   220VAC / 0,2A or 120 VAC / 0,4A   50/60 Hz
Environment :   Working temperature : -20°C to  +50°C (-40°C as an option)
Storage temperature :    -40°C to +70°C
Protection :   IP 54 / SI19 : IP 65
Weight :   About 2,6 Kg
Dimensions :   About  120 x 120 x 260 mm
Notes :   All the results are given in R.M.S. values at 20°C
Software :   Angular speed option choice
Display :   One green LED + one red LED on SI19



Optical filtering of undesirable waves, by narrow band interference filter  (40 nm)
Analogic signal and numerical filtering
Numerical position calculation and non linearity compensation of the electrical and optical sets 


TS19 SIRRAH sensor +/- 9°     
SI19 TS19 sensor included in BO35 protective housing + SCB13 cable + SCB4 cable
SI19-P TS19 sensor with Profibus interface included in BO35 protective housing + SCB15 cable + SCB4 cable
SCB4 Power supply cable 220 VAC        
SCB5 Power supply cable 110 VAC   
SCB13 RS422 cable
SCB14 RS232 cable
SCB15 Profibus cable
Associated beacon : Reference BMU-02 


TS20 SIRRAH sensor +/- 8,8°   SI20 TS20 sensor + BO35 protective housing factory mounted
LS08 SIRRAH sensor +/- 7°   SI08 LS08 sensor + BO35 protective housing factory mounted

Download Product Data Sheet

Réalisation SYSTONIC 2008