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Specifications

The following performance specifications conform to ISA-RP-37.2 (1964) and are typical values, referenced at +75˚F (+24˚C), 4 mA and 100 Hz,

unless otherwise noted. Calibration data, traceable to National Institute of Standards and Technology (NIST), is supplied

Dynamic characteristics Units

Charge sensitivity

Typical pC/g 2.8

Minimum pC/g 2.2

Frequency response See typical amplitude response

Resonance frequency kHz 21

Amplitude response [1]

±5% Hz 1 to 4000

±1 dB (ref) Hz 0.1 to 6000

Temperature response See typical curve

at -67°F (-55°C) max/min % -12 / 0

at +350°F (+177°C) max/min Hz 20 / 0

Transverse sensitivity % ≤5

Amplitude linearity % 1

Per 500g, 0 to 2000 g

Electrical characteristics

Output polarity Acceleration applied in the direction of the axis arrow produces positive output

Resistance GΩ ≥10

Resistance at +350°F (+177°C) GΩ ≥5

Isolation MΩ ≥10

Signal ground to each signal ground and to mounting surface

Capacitance pF 400

Grounding Each sensor is isolated from the anodized aluminum case

Environmental characteristics

Temperature range -67˚F to +350˚F (-55˚C to +177˚C)

Humidity Epoxy sealed, non-hermetic

Sinusoidal vibration limit g pk 1000

Shock limit [2] g pk 2000

Salt spray Will meet ML-E-5272C, para 4.6.1 when used with sealed connector

Electromagnetic sensitivity equiv. g rms/gauss 0.01

Physical characteristics

Dimensions See outline drawing

Weight gm (oz) 15 (0.53)

Case material Aluminum alloy case, hard adonized, nickel alloy sensors

Connector Mates with Endevco 3060 series cable

Mounting torque lbf-in (Nm) 8 (1)

Calibration

Supplied:

Charge sensitivity pC/g

Capacitance pF

Maximum transverse sensitivity

Charge frequency response

% 20 to 4000 Hz

dB thru resonance (Z axis only)

APPLIES TO CALIFORNIA FACILITY

Model 2228C

Piezoelectric accelerometer

Continued product improvement necessitates that Endevco reserve the right to modify these specifications without notice. Endevco maintains a program of constant surveillance over

all products to ensure a high level of reliability. This program includes attention to reliability factors during product design, the support of stringent Quality Control requirements,

and compulsory corrective action procedures. These measures, together with conservative specifications have made the name Endevco synonymous with reliability.

(800) 982-6732 • (949) 493-8181 fax (949) 661-7231 • www.endevco.com • Email: [email protected]om 011911

Product Description 2228C 2228C-R

3060D-120 [3] Cable assembly, three each [3], 10 ft Included Optional

EH156 4-40 x 5/8 socket head cap screws Included Included

two each

EHW53 No. 4 flat washer, two each Included Included

EHM464 Hex wrench Included Optional

2771C In-line charge convertor Optional Optional

133 Signal conditioner Optional Optional

2775B Signal conditioner Optional Optional

4990A-1 OASIS 2000 computer-controlled system Optional Optional

6634C Signal conditioner Optional Optional

Accessories Notes:

1. Low-end response of the transducer is a function of its associated electronics.

2. Short duration shock pulses, such as those generated by metal-to-metal

impacts, may excite transducer resonance and cause linearity errors.

Read TP290 for more details.

3. Flexible cable, such as the supplied 3060D, should be used to minimize

cable-strain errors.

4. Adhesives such as petro-wax, hot-melt glue, and cyanoacrylate epoxy

(super glue) may be used to mount the accelerometer temporarily to the

test structure. An adhesive mounting kit (P/N 31849) is available as an option

from Endevco. To remove an epoxy-mounted accelerometer, first soften the

epoxy with an appropriate solvent and then twist the unit off with the supplied

removal wrench. Damage to sensors caused by inappropriate removal

procedures are not covered by Endevco’s warranty.

5. Maintain high levels of precision and accuracy using Endevco’s factory

calibration services. Call Endevco’s inside sales force at 800-982-6732 for

recommended intervals, pricing and turn-around time for these services as

well as for quotations on our standard products.

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Page 1 - Piezoelectric accelerometer

SpecificationsThe following performance specifications conform to ISA-RP-37.2 (1964) and are typical values, referenced at +75˚F (+24˚C), 4 mA and 100

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Atec Endevco-2228C Manuel d'utilisateur

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