23203A

23203A
Wide Input Voltage ± 1 to ± 7.5 g
Bi-Axial Accelerometers with
Signal Conditioning and
Temperature Sensor
Technical Data*
Features and Benefits
High Accuracy and Linearity over Wide Temperature Range
The voltage output for each axis of the 23203A is directly proportional to
the acceleration along that axis. Each DC-coupled output is fully scaled,
referenced, and temperature compensated. A force-balanced design
improves accuracy by minimizing variations due to temperature and aging
effects, resulting in a sensor that is more stable over temperature than
piezoelectric or piezoresistive devices. For critical applications, the built-in
temperature sensor with very high repeatability can be used to compensate
for any residual temperature effects.
Calibration Certificate
Each 23203A can be supplied with an optional calibration certificate listing
gain, offset, and 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 if needed.
Self-Test on Digital Command
A TTL-compatible self-test input causes a simulated acceleration to be
injected into both accelerometers to verify channel integrity.
Small Size
Complete conditioned bi-axial accelerometer in less than a cubic inch.
Built-in Power Supply Regulation
A single regulated +5 volt or an unregulated DC power source from +5.25
to +30 volts is all that is required to measure accelerations on both axes.
The 23200A is ideal for automotive applications with the ability to survive
both continuous reverse battery to -20V and load dump transients to +60V.
Easy installation
Built-in terminal block or cable with 9-pin connector makes it easy to wire
the 23203A. Two through holes and four tapped holes simplify mounting.
Suitable for Harsh Environments
The 23203A is robust and can be used in harsh environments. The unit will
survive 500 g powered and 1000 g unpowered.
Simplify Acceleration and
Temperature Measurements
The Summit Instruments 23203A
accelerometer has two orthogonal axes and
a temperature sensor in a small rugged
package. The small size and built-in power
regulation allow the 23203A to fit where
other accelerometers can't. A power source
of +5 to +30 VDC is all that is required to
measure temperature and ± 1 g, ± 1.5 g,
± 2 g, ± 2.5 g, ± 3 g, ± 5 g or ± 7.5 g
accelerations on each of two axes.
When extra precision is required, the high
repeatability of the built-in temperature
allows precise compensation of temperature
effects and alignment data provided on the
optional calibration certificate can be used
to compensate for transverse sensitivity and
alignment errors.
Each axial sensor has been tested over the
-40 to +85°C temperature range. Each axis
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
provided on the optional calibration
certificate. Custom versions of the 23203A
can be provided for applications which
require different ranges and/or bandwidths.
*Data subject to change without notice
Rev. 11/01
Specifications
TA = TMIN to TMAX, 5.25 ≤ VS ≤ 30 V, Acceleration = 0 g, unless otherwise noted.
Parameter
Range
Measurement Full Scale
Shock survival, powered
Shock survival, unpowered
Sensitivity
At 25°C, ±5 g FSR
Drift TMIN to TMAX
Zero G Bias Level
At 25°C
Drift TMIN to TMAX
Alignment
Deviation from ideal axes
Transverse Sensitivity
Nonlinearity
Upper Cutoff Frequency
Noise
Density
Amplitude DC to 100 Hz
Self Test Input Impedance
Temperature Sensor
Sensitivity
Repeatability
Long term drift
Absolute error
Outputs
Output voltage swing
Capacitive Drive Capability
Power Supply (VS)
Input voltage limits
Input voltage - operating
Input current
Rejection Ratio
Temperature Range (TA)
Mass
†
Scale linearly with range option Rnnn.
Min
Typical
±1
-500
-1000
365†
420†
±0.5
2.1
Max
Units
Conditions/Notes
±7.5
+500
+1000
g
g
g
On each axis. Must specify via Opt. Rnnn
Any axis for 0.5 ms. Recovers on power cycle.
Any axis for 0.5 ms.
475†
mV/g
%
2.9
V
g
±3.0
degrees
%
% FSR
Hz
±0.2
±2.0
0.25
0.2
4.6
2500
0.5
5
50
Precise values on Opt. C001 cal certificate.
Percent of sensitivity at 25°C
Precise values on Opt. C001 cal certificate.
Repeatable, can be compensated.
Precise values on Opt. C001 cal certificate.
Can be compensated if required.
Inherent sensor error, excluding misalignment
Best fit straight line.
-3dB point ±10% Must specify via Opt. Bnnn.
mg/√Hz 4 Hz to 1 kHz
mg rms
kΩ
To ground. Logic "1" ≥ 2V, Logic "0" ≤ 0.8V
Precise values on Opt. C002 cal certificate.
mV/°K VT at -40°C ≈ 1.92V ; VT at +85°C ≈ 3.16V
°C
At 25°C after temperture cycle
°C
°C
25°C offset removed (±5°C uncorrected)
1
8.25
±0.1
±0.1
±3
0.25
1000
4.75
V
pF
IOUT = ±0.1 mA
X, Y outputs; T output drives 300pF
-20
+5.25
+60
+30
24
V
V
mA
dB
°C
g
-20V continuous, >30V if <100ms, duty <1%
Continuous or Alt. +5V Regulated Power
No load, quiescent.
DC. For +5V Regulated: Min 30, Typical 40
Terminal block Opt. T000 rated to -30°C
Precise values on Opt. C001 cal certificate.
16
120
80
-40
+85
35
Mechanical
Connections
1 2 3 4 5
1 2 3 4 5 6 7 8 9
0.167
[4,25]
0.354
[9,00]
0.099
[2,51]
0.323
[8,20]
0.128
[3,25]
Dimensions in inches [mm]
0.354
[9,00]
0.542
[13,75]
1.437
[36,50]
0.354
[9,00]
3 mm x 0,5 mm Thread
0.138 [3,50] Deep
(4) Places
0.575
[14,60]
Y
0.240
[6,10]
Y
X
X
0.689
[17,50]
Rear View
1.180
[29,97]
1.000
[25,40]
Spring and cable
added with
Option T001
0.147 [3,73] Thru
(2) Places
Bottom View
Two through holes and four 3 mm × 0.5 mm threaded holes are
provided for mounting.
Summit Instruments, Inc.
2236 N. Cleveland-Massillon Rd.
Akron, Ohio 44333-1255
Male D-Shell
Connector
Terminal
Block
6 7 8 9
Pin
Signal
Wire
1
X
Brown
2
SignalRed
3
Temp
Orange
4
+5V
Yellow
5
Y
Green
6
7
Signal- SelfTest
Blue
Violet
8
+Vs
Grey
9
Gnd
White
Ordering Information
23203A
Bi-axial accelerometer ±1 to ±7.5 g
(-Bnnn, -Rnnn, & -Tnnn options required)
-Bnnn
Bandwidth 3 dB cutoff (nnn Hz)
-C001
Add accelerometer calibration certificate
-C002
Add temperature calibration certificate
-Rnnn
Range (±nnn g FSR)
-Tnnn
Terminal block (T000) or (nnn foot) cable with
9-pin male D-subminiature connector at end
-W024
Extend warranty from 1 year to 2 years
Voice: (330) 659-3312
Fax: (330) 659-3286
www.summitinstruments.com
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