INSTRUCTION MANUAL
For Model 2250A
,
Microminiature Accelerometer
IM2250A, Revision D
The instructions contained in this manual are relative to installing and removing the Endevco Model 2250A
Microminiature Accelerometer. Because of its extremely small size and physical construction, certain special
precautions must be observed when mounting and removing 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 mounting pad (side
opposite gold lid).
