User manual

User Manual

Installation Section 2 :

The following tools are required for installation;

 3mm & 5mm Allen keys

 A drill and bit suitable for drilling an M8 anchor hole

 Adjustable spanner

 Small flat blade screwdriver (for wiring)

 A selection on M8 nuts and washers

The installation procedure is detailed below:-

2.01 Identify Components and Tools Needed

 Sensor body and bracket

 M8 anchor and accessories (nuts, washers, lock-nuts)

 Drill and bit

 Hand tools as above

Mark out the position on the structure to be monitored where you wish to place the

tiltmeter, ensuring that once the installation is completed the sensitive axis of the tiltmeter

will be in the direction of expected movement. (This can easily be accomplished by holding

the tiltmeter up to the structure and checking the orientation of the top label)

2.02 Drill Anchor Hole

Once the location for the tiltmeter has been agreed and the hole marked out, drill the hole

to accept the supplied M8 anchor. Ensure that appropriate PPE (Personal Protective

Equipment) is worn (e.g. gloves, eye protection and if needed ear protection) during this

operation. Drill the hole to a deep enough so when the anchor is inserted the shell can

expand to grip the structure, but not too deep so insufficient thread is left to attach the

tiltmeter.

Take great care to ensure that the hole is drilled straight into the structure and not at an

angle to it. Once the hole is drilled, insert the anchor and fully tighten the M8 nut to secure

it to the structure.

2.03 Attach Tiltmeter

If the structure is smooth walled (such as the one in the photographs above), then the nut

used to tighten the anchor should be sufficient to stand the tiltmeter bracket away from the

structure so that the tiltmeter body does not touch it. If this is the case, then fit a washer

between nut and the tiltmeter and proceed as below. If this is not the case and additional

clearance is required, fit a second M8 nut and then a washer as needed to space the

tiltmeter away from the structure.

Once the correct spacing has been set, slide the tiltmeter bracket assembly onto the stud

and secure using a second washer and then a M8 lock-nut. Use a spirit level to ensure that

the tiltmeter body is level in both directions and then tighten the lock-nut to secure.

The installation is now complete. If the tiltmeter is to be in direct sunlight, and/or is in a

position where it may be knocked or tampered with, it is good practice to fabricate and fit a

cover (which in the case of sunlight protection should be painted white). Ensure that any

such cover does not come into contact with the tiltmeter and therefore interfere with its

operation.