Amphenol ENDEVCO Picomin 22 Instruction Manual

Browse online or download pdf Instruction Manual for Measuring Instruments Amphenol ENDEVCO Picomin 22. Amphenol ENDEVCO Picomin 22 2 pages. Accelerometer

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The Endevco Model 22 is a microminiature, piezoelectric accelerometer. Because of its extremely small

size and physical construction, certain special precautions must be observed when mounting and

removing the accelerometer to avoid damaging the unit.

Accessories, Adhesive, Solvent and Tools

For use at room temperature:

* Petro wax or bees wax

For use up to 60°C:

* All-temperature glue stick and hot-melt glue gun

* Solvent: Follow the recommendations from glue stick manufacturers

For use up to 125°C:

* Adhesive: Cyanoacrylate (Loctite Super Bonder 430 Adhesive is recommended)

* Solvent: Nitromethane base (Loctite X-NMS Solvent 768 is recommended)

Alternatives: Acetone, Chlorothene (Trichloroethane) or equivalent hydrocarbon solvent

* Cotton swabs or lint-free tissue

* Toothpicks or equivalent applicators

Endevco P/N 31849 Adhesive Kit contains most of the required items for mounting transducer.

Contact the factory for details.

CAUTION:

Observe precautions recommended by manufacturer of adhesive or solvent.

Special Precautions

The following precautions should be observed when performing the accelerometer mounting and removal

procedures given below.

WARNING:

Do not break cement bond by striking accelerometer or by using any tool that

makes a metal-to-metal contact with the accelerometer. Always break the bond

with the supplied tool after the cement has been softened, by twisting or torquing

the accelerometer, stressing the bond in shear.

CAUTION:

Exercise care to prevent getting adhesive or solvent on the accelerometer

connector.

Mounting Procedure

1. Ensure that mating surfaces are smooth and flat.

2. Remove all traces of grease, oil and oily residue from mating surfaces using cotton swabs and

solvent.

3. Apply a tiny drop of Cyanoacrylate, approximately 1/5 the diameter of the base mounting surface

(side opposite gold lid).

4. Spread the cement with toothpick to form thin, uniform layer covering area of contact, and

immediately position accelerometer on mating surface.

5. Press down and hold accelerometer firmly in place for 30 seconds while cement sets. Allow

cement to set for at least several minutes for maximum strength.

6. If the accelerometer is to operate at low frequencies and/or large acceleration levels, the

accelerometer cable must be secured to the vibrating structure as close as possible to the

accelerometer to avoid cable damage.

DOCUMENT SUBJECT TO U.S. EXPORT CONTROLS. COMPLIANCE APPROVAL REQUIRED PRIOR TO DISTRIBUTION.

INSTRUCTION MANUAL

For Model 22, Picomin ™ Accelerometer

IM22, Revision D