Analog Accelerometer 34208A

PRELIMINARY
34208A
±250 g, ±500 g Triaxial Accelerometer
Wide Bandwidth to 10 kHz
Precision Aligned
This Measurement Specialties product
is subject to U.S. Export Law.
Technical Data*
8
001
0000A00
Features and Benefits
Precision Alignment
Each axis of the Measurement Specialties 34208A is precision aligned to
minimize errors due to axis misalignment or transverse sensitivity.
High Accuracy and Linearity over Wide Temperature Range
The voltage output for each axis of the 34208A is directly proportional to the
acceleration along that axis. Each DC-coupled output is fully scaled,
referenced, and temperature compensated over the entire -40 to +85°C
range. Accuracy is improved by minimizing variations due to temperature
and aging effects, resulting in a sensor that is more stable over temperature
than piezoelectric or piezoresistive devices.
Calibration Certificate
Each 34208A is supplied with a calibration certificate listing sensitivity and
offset, as well as on-axis and transverse alignment parameters needed to
ensure rapid and efficient system implementation. The alignment data can
be used to compensate the measured values to achieve an even higher
level of sensor accuracy.
Self-Test on Digital Command
A TTL-compatible self-test low input causes a simulated acceleration to be
injected into all three sensors to verify channel integrity.
Small Size
Complete conditioned triaxial accelerometer in less than a cubic inch.
­ uilt-In Power Supply Regulation
B
Unregulated DC power from +8.5 to +36 volts is all that is required to
measure acceleration and temperature.
Suitable for Harsh Environments
The 34208A is robust and can be used in harsh environments. The unit will
survive 4000 g powered or unpowered.
Warranty
These Measurement Specialties accelerometers come with a three-year
factory warranty.
34208A Triaxial Analog Accelerometers
precisionsensors.meas-spec.com Precisely Measure
Real -World Accelerations
The Measurement Specialties
34208A accelerometer has each
mutually orthogonal axis precisely
aligned within 0.75 degree of the
theoretical ideal. This provides
the accuracy required by most
measurement applications without any
compensation. Critical applications
requiring higher accuracy can use
the alignment data provided on the
calibration certificate to compensate
for any small residual error.
Choose the bandwidth and range
options best suited for your application
to measure up to ±250 g or ±500 g
accelerations on each of three axes.
Each axial sensor has been tested over
the -40 to +85°C temperature range
and has a nominal full scale output
swing of ±2 volts. The zero g output
level is nominally +2.5 volts. Precise
values for each axis are available on
the included calibration certificate.
2236 N. Cleveland-Massillon Road
Akron OH 44333 PH : 330-659-3312 8/19/2013
www.meas-spec.com
PRELIMINARY
Specifications for 34208A - improved specifications available upon request
Ta = Tmin to Tmax; 8.5 ≤ Vs ≤ 36 V; Acceleration = 0 g unless otherwise noted; within one year of calibration.
Parameter
Min
Accelerometers Full Scale Range
Option R250
Option R500
Sensitivity at 25°C
Option R250
Option R500
Drift Tmin to Tmax
Units
Conditions/Notes
On each axis, specify with Option Rnnn
g
g
±6.6
±3.3
1% (TBD)
mV/g
mV/g
%
2.5
±1000
Percent of sensitivity at 25°C
V
mg
Precise values on cal certificate
±0.75
degree
Precise values on cal certificate
Can be compensated if required
2
% FSR
Alignment
Deviation from Ideal Axes
Transverse Sensitivity
±0.25
Nonlinearity
0.2
Frequency Response
Noise Density
Self-Test Input Impedance
10
Temperature Sensor
Sensitivity
0°C Bias Level
Outputs
Output Voltage Swing
Capacitive Drive Capability
0.25
1000
4.75
V
pF
Iout = ±0.5 mA
Power Supply (Vs)
Input Voltage Limits
Input Voltage - Operating
Input Current
Rejection Ratio
-20
+8.5
15
>120
+38
+36
20
V
V
mA
dB
-20V continuous
Temperature Range (Ta)
-40
+85
°C
Mass
Shock Survival
-4000
0
2
10
3
1
2
0.945 0.354
Two 3 mm
[24,00] [9,0]
x 0.5 mm
threaded holes
are provided
on each of
three orthogonal faces for
mounting.
34208A Triaxial Analog Accelerometers
precisionsensors.meas-spec.com kHz
Upper cutoff per Option Bnnn, -3 dB pt ±10%
35
Accuracy ±1°C
No load, quiescent
DC
grams
+4000
10 Hz to 400 Hz
Pullup. Logic "1"≥3.5V, Logic "0"≤1.5V
mV/°C
mV
Precise values on cal certificate
g
Any axis for 0.5ms, powered or unpowered
Connections
3
1
1
T004
2
Pin
Signal
Wire
0.945
[24,00]
0.354
[9,0]
Dimensions in inches [mm],
identical for each view where
applicable.
1
A1+
Brown
3
4
5
A2+ +5VOut A3+
Orange Yellow Green
6
7
8
T+ Self Test-L +Vs
Blue
Violet
Grey
9
Gnd
White
34208A - R500 - B1k0 - T004
Termination
T004 : 4 ft. cable with DB9M
T000 : PCB mount (not shown, call SI)
Tnnn : Custom length, nnn ft. (call SI)
Bandwidth
B10k : 0 to 10 kHz
B5k0 : 0 to 5 kHz
B2k5 : 0 to 2.5 kHz
B1k0 : 0 to 1 kHz
Range
R500 : ±500 g
R250 : ±250 g
1
2
Shown with 34170B
mounting adapter
(sold separately)
2
Signal-
Red
Ordering Information
Cable to 9-pin male
D-Shell connector
3
Best fit straight line
mg/√Hz
6.45
509
1.115
[28,30]
0.295
[7,50]
3 mm x 0,5 mm Thread
3,5 mm [0.138] Deep
0.295
[7,50]
(6) Mounting Holes
on 3 sides
Inherent sensor error, excluding misalignment
kΩ
3
%
±2.8
Mechanical
Max
±250
±500
Zero g Bias Level
At 25°C
Drift Tmin to Tmax At 1.25°C/min rate of change Typical
Instrument
2236 N. Cleveland-Massillon Road
Akron OH 44333 PH : 330-659-3312 8/12/2013
www.meas-spec.com
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