DYTRAN 3145A1, 3145A1G DATA SHEET

5-44 CONNECTOR

TOLERANCE: .XXX = ± .XX= ±
SURFACE FINISH

EXCEPT AS NOTED
BREAK EDGES TO DEBURR

RADIUS OR CHAMFER

THESE DIAS TO T.I.R.

FILLETS - MAX RAD.

EXCEPT AS OTHERWISE NOTED

SCALE

NEXT ASSEMBLY USED ON

OF

MAT'L

APPROVED

DRAWN

TITLE

DWG NO.

ECN

SHEET

PART NO.

REV DATE

DATE

4X

INSTRUMENTS, INC.

9/32 (Ø.281) HEX,
Ø.315 ACROSS HEX CORNERS, TYP

ADHESIVE MOUNTING
SURFACE

MOUNTING PORT PREPARATION:

DRILL #38 (Ø.101) X .200 MIN DEPTH
TAP 5-40 X .140 MIN DEPTH THD

.10

.49 (TYP)

2. SEAL-HERMETIC, ALL WELDED.

1. MATERIAL: TITANIUM ALLOY.

5. SUGGESTED ADHESIVE TYPE FOR MODEL
3145A1G-CYANOACRYLATE "INSTANT" BOND.

4. TO INSTALL MOD 3145A1, TORQUE IN PLACE
WITH 10 OZ.-INCHES.

3. WEIGHT-MOD 3145A-2.3 GRAMS.,

MOD 3145AG-2.1 GRAMS

Ø .24 TYP

TYP

THD 5-40, UNC-2A

MODEL 3145A1

STUD MOUNT

(+)

.59

SENSE AND DIRECTION OF INPUT
ACCELERATION FOR POSITIVE­GOING OUTPUT VOLTAGE SIGNAL,
TYP BOTH MODELS

MODEL 3145A1G

ADHESIVE MOUNT

(+)

ALL DIMENSI0NS IN INCHES

.01

-

6/5/00

CHECKED

N.C.

R.A.

OUTLINE/INSTALLATION DRAWING

MODELS 3145A1 & 3145A1G

- -

CHATSWORTH, CA.

3145A1 & 3145A1G

127-3145A1

OF

1

1

Dynamic Transducers and Systems

21592 Marilla St. • Chatsworth, CA 91311 • Phone [phone]
www.dytran.com • e-mail: [e-mail]

SPECIFICATION VALUE UNITS
PHYSICAL

WEIGHT (Model 3145A1/3145A1G) 2.3/2.1 Grams
SIZE, HEX x HEIGHT (Height does not include mtg. stud) .281 (9/32) x .49 Inches
MOUNTING PROVISION (Model 3145A1/3145A1G) 5-40 integral stud/adhesive mount
CONNECTOR, TOP MOUNTED 5-44 Coaxial
MATERIAL, HOUSING AND CONNECTOR 300 Series Stainless Steel
ELEMENT STYLE Quartz planar shear

PERFORMANCE

SENSITIVITY, ± 10% [1] 10.0 mV/G
RANGE F.S. FOR ± 5 VOLTS OUTPUT ± 500 G's
FREQUENCY RANGE, ± 5% 0.5 to 10k Hz
RESONANT FREQUENCY, NOM. 45 kHz
EQUIVALENT ELECTRICAL NOISE FLOOR .035 G's RMS
LINEARITY [2] ± 1% % F.S.
TRANSVERSE SENSITIVITY, MAX. 5 %
STRAIN SENSITIVITY .002 G’s/μσ @ 250 μσ

ENVIRONMENTAL

MAXIMUM VIBRATION/SHOCK 600/3000 ± G's/G's PEAK
TEMPERATURE RANGE -60 to +300 oF

SEAL, HERMETIC Glass-to-metal and TIG welded
COEFFICIENT OF THERMAL SENSITIVITY .04 %/oF

ELECTRICAL

SUPPLY CURRENT/COMPLIANCE VOLTAGE RANGE [3] 2 to 20/+18 to +30 mA/Volts
OUTPUT IMPEDANCE, TYP. 100 Ohms
BIAS VOLTAGE, +9 VOLTS NOM. +8 to +13 VDC
DISCHARGE TIME CONSTANT, NOM. 0.5 Sec
OUTPUT SIGNAL POLARITY FOR ACCELERATION TOWARD TOP Positive
CASE GROUNDING Case is grounded to electrical power ground

[1] Measured at 100 Hz, 1 G RMS per ISA RP 37.2.
[2] Measured using zero-based best straight line method, % of F.S. or any lesser range.
[3] Do not apply power to this device without current limiting, 20 mA MAX. To do so will destroy the integral IC
amplifier.

SPECIFICATIONS

MODELS 3145A1 & 3145A1G ACCELEROMETERS

Rev C, ECN 6770, 5-5-10

2