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MEMS Tilt Beam Instruction Manual 

RST Instruments 

3.2  S

INGLE 

MEMS

 

T

ILT 

B

EAM 

I

NSTALLATION

 

Determine the MEMS Tilt Beam installation orientation (i.e. Is the Beam to be 
installed on the ceiling, wall, or floor).  Refer to Figure 4 and adjust mounting 
brackets accordingly. 

1.  Thread a 10mm nut onto each anchor until they reach the desired position 

(ensure the nuts are in plane) 

2.  Place a Belleville washer over each anchor  (see Figure 5) 

3.  Place a Nylon washer over each anchor 

4.  Place a Nylon bushing over each anchor 

5.  Slide the MEMS Tilt Beam onto the Nylon Bushings 

6.  Place a Nylon Washer over each anchor  

7.  Place a Belleville washer over each anchor (see Figure 5) 

8.  Thread a 10mm nut onto each anchor, finger tight, and ensure that the Beam is 

horizontal or vertical 

9.  For a 

single

 beam installation, where (2) Belleville washers are used per 

anchor, turn the nut 2-3 wrench flats (120

-180

) (see Figure 5) 

10. For a 

double

 beam installation, where (4) Belleville washers are used per 

anchor, turn the nut 4-5 wrench flats (240

-300

) (see Figure 5) 

10mm NUT

10mm NUT

10mm BELLEVILLE WASHER

10mm NYLON WASHER

MOUNTING BRACKET

10mm NYLON WASHER

10mm BELLEVILLE WASHER

MEMS TILT BEAM 

10mm CONCRETE ANCHOR

DETAIL A 

SCALE 1 : 2

A

 

 

Figure 5: Single Beam Mounting Details 

 

Summary of Contents for MEMS Tilt Beam

Page 1: ...Instruction Manual Copyright 2012 RST Instruments Ltd All Rights Reserved RST Instruments Ltd 11545 Kingston St Maple Ridge B C Canada V2X 0Z5 Tel 604 540 1100 Fax 604 540 1005 Email info rstinstruments com Website www rstinstruments com ...

Page 2: ...e been made to ensure the accuracy and completeness of the information contained in this document RST Instruments Inc reserves the right to change the information at any time and assumes no liability for its accuracy Product MEMS Tilt Beam Instruction Manual Document number ICM0065B Revision B Date May 10 2010 ...

Page 3: ...YZING THE DATA 9 5 SPECIFICATIONS 12 5 1 ENVIRONMENTAL 12 5 2 ELECTRICAL 12 LIST OF FIGURES Figure 1 MEMS Tilt Beam 1 Figure 2 MEMS Tilt Beam Details 1 Figure 3 Horizontal Vertical Tilt Beam Concrete Anchor Orientation 3 Figure 4 MEMSTilt Beam Meter General Arrangement 4 Figure 5 Single Beam Mounting Details 5 Figure 6 Multiple Beam Configurations 7 Figure 7 Electrical Connections 8 Figure 8 Tilt ...

Page 4: ... Beam is capable of uniaxial as well as biaxial MEMS sensors optional Because of the excellent zero and range stability no separate sensor leveling is required i e the enclosure should be mounted as close to level as possible but no secondary level adjustment is required Figure 1 MEMS Tilt Beam COVER PLATE SCREWS MEMS TILT BEAM SERIAL LABEL PIVOT REFERENCE LEFT MOST ANCHOR CABLE INPUT JACKET STRIP...

Page 5: ...hardware to a rigid structure that is free of vibration Care should be taken to avoid areas of rapid or extreme changes in temperature such as direct sunlight or near heating or cooling equipment For exposed units a sun shade and or external insulation is recommended The output of the MEMS sensor s is in Volts which can be read with an RST IC6800 V Readout or a FlexDaq 1000 800 Datalogger The MEMS...

Page 6: ...oth anchors 3 Allow anchors to set FRONT VIEW 10mm CONCRETE ANCHOR HOLES TILT BEAM LENGTH REQURED SPAN ACCORDING TO TOP VIEW 10mm CONCRETE ANCHOR SIDE VIEW FRONT VIEW 10mm CONCRETE ANCHOR HOLES TILT BEAM LENGTH REQURED SPAN ACCORDING TO SIDE VIEW Figure 3 Horizontal Vertical Tilt Beam Concrete Anchor Orientation ...

Page 7: ...MEMS Tilt Beam Instruction Manual RST Instruments 4 Figure 4 MEMSTilt Beam Meter General Arrangement ...

Page 8: ... the MEMS Tilt Beam onto the Nylon Bushings 6 Place a Nylon Washer over each anchor 7 Place a Belleville washer over each anchor see Figure 5 8 Thread a 10mm nut onto each anchor finger tight and ensure that the Beam is horizontal or vertical 9 For a single beam installation where 2 Belleville washers are used per anchor turn the nut 2 3 wrench flats 120 180 see Figure 5 10 For a double beam insta...

Page 9: ...e MEMS Tilt Beam onto the Nylon Bushings 6 Place a Nylon Washer over the 1st and 2nd anchors 7 Place a Belleville washer over the 1st and 2nd anchors see Figure 5 or 6 8 Thread a 10mm nut onto the 1st anchor finger tight and ensure that the Beam is horizontal or vertical 9 Tighten the nut 2 3 wrench flats 120 180 10 Thread a 10mm nut onto the 3rd anchor position nut so that the next beam when inst...

Page 10: ...s shown in Figure 6 MOUNTING BRACKET SCALE 1 2 DETAIL A 10mm NUT 10mm NYLON WASHER MOUNTING BRACKET 10mm NYLON WASHER 10mm BELLEVILLE WASHER 10mm NUT 10mm CONCRETE ANCHOR 10mm BELLEVILLE WASHER 10mm BELLEVILLE WASHER 10mm NYLON WASHER 10mm NYLON WASHER MEMS TILT BEAM MEMS TILT BEAM 10mm BELLEVILLE WASHER A Figure 6 Multiple Beam Configurations ...

Page 11: ...nd Vertical Tilt Beam system measure the A axis Green White Vertical Tile Beam system is capable of measuring the B axis optional Orange Blue Information regarding your sensor configuration and cable type is listed below and on your Calibration Certificate Figure 7 Electrical Connections Tiltmeter Wire Color Terminal Datalogger 12V Red 1 12V Gnd Black 2 Gnd A Green 3 xH A White 4 xL B Orange 5 yH ...

Page 12: ...n Constant The sensing principle of the MEMS Tilt Beam is that of an accelerometer with the sensitive axis is oriented horizontally The measured phenomenon is then the component of gravity transverse to the sensitive axis i e a g sine Commonly MEMS Tilt Beam data are interpreted as linear motion i e rotation about a presumed radius gives an equivalent motion In many cases where the ultimate variab...

Page 13: ...Interpretation In cases where the actual angle is sought the arcsine function or a polynomial equivalent may be used arcsine a g It should be noted that measuring dynamic tilt may be a concept error the lateral dynamic accelerations may exceed the tilt accelerations x r a g ...

Page 14: ...MEMS Tilt Beam Instruction Manual RST Instruments 11 Figure 9 MEMS Tiltbeam Directional Reading ...

Page 15: ... 1 ENVIRONMENTAL Operating temperature 40 C to 80 C 5 2 ELECTRICAL Sensor 0ne Two MEMS Tilt Sensor s Range 15 Degree Standard Resolution 0 0013 Degree Null Repeatability 0 004 Degree Signal Cable 22 Gauge Shielded Twisted Datalogger Analog Readout FlexDaq 1000 800 IC6800 V ...

Page 16: ...MEMS Tilt Beam Instruction Manual RST Instruments 13 Figure 10 Calibration Certificate ...

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