DYTRAN 3145A2, 3145A2G 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
3145A2G-CYANOACRYLATE "INSTANT" BOND.
4. TO INSTALL MOD 3145A2, TORQUE IN PLACE
WITH 10 OZ.-INCHES.
3. WEIGHT-MOD 3145A2-2.3 GRAMS.,
MOD 3145A2G-2.1 GRAMS
Ø .24 TYP
TYP
THD 5-40, UNC-2A
MODEL 3145A2
STUD MOUNT
(+)
.59
SENSE AND DIRECTION OF INPUT
ACCELERATION FOR POSITIVEGOING OUTPUT VOLTAGE SIGNAL,
TYP BOTH MODELS
MODEL 3145A2G
ADHESIVE MOUNT
(+)
ALL DIMENSI0NS IN INCHES
.01
-
3/24/03
CHECKED
N.C.
R.A.
OUTLINE/INSTALLATION DRAWING
MODELS 3145A2 & 3145A2G
- -
CHATSWORTH, CA.
3145A2 & 3145A2G
127-3145A2
OF
1
1
SPECIFICATIONS
MODELS 3145A2 & 3145A2G ACCELEROMETERS
SPECIFICATION
PHYSICAL
WEIGHT (Model 3145A2/3145A2G) 2.3/2.1 Grams
SIZE, HEX x HEIGHT (Height does not include mtg. stud) .281 (9/32) x .49 Inches
MOUNTING PROVISION (Model 3145A2/3145A2G) 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] 5.0 mV/G
RANGE F.S. FOR ± 5 VOLTS OUTPUT ± 1000 G's
FREQUENCY RANGE, ± 5% 0.5 to 10k Hz
RESONANT FREQUENCY, NOM. 45 kHz
EQUIVALENT ELECTRICAL NOISE FLOOR .07 G's RMS
LINEARITY [2] ± 1% % F.S.
TRANSVERSE SENSITIVITY, MAX. 5 %
STRAIN SENSITIVITY .001 G’s/µσ @ 250 µσ
ENVIRONMENTAL
MAXIMUM VIBRATION/SHOCK 1000/3000 ± G's/G's PEAK
TEMPERATURE RANGE -60 to +300
SEAL, HERMETIC Glass-to-metal and TIG welded
COEFFICIENT OF THERMAL SENSITIVITY .04 %/oF
VALUE
UNITS
o
F
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 +10 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.
2
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