Analog Accelerometer 15207A

PRELIMINARY
15207A 25207A 35207A
Uniaxial
Digital Accelerometers
User Configurable to ±70 g
Wide Bandwidth to 10 kHz
Biaxial
Triaxial
7A
Technical Data*
Features and Benefits
User Configurable Settings
The analog/digital output range and low-pass filter of each digital
accelerometer axis can be set via a built-in RS-485 interface using a free,
downloadable Instrument Configuration Utility (ICU). An RS-485 to RS-232
adapter is available.
RS-485 Serial and Analog Outputs
Calibrated, ranged and filtered data can be streamed out at up to 3 Mbit/
sec via RS-485. Analog output of up to three calibrated, ranged and filtered
channels are provided for compatibility with existing systems.
High Accuracy and Linearity over Wide Temperature Range
Accelerometer accuracy is improved by minimizing variations due to
temperature and aging effects. Each axial sensor has been tested and
compensated over the -40 to +85°C temperature range.
Built-in Calibration
Calibration data for each sensor is maintained in the accelerometer. All
digital data output is fully calibrated and easily converted to user specified
engineering units.
Self-Test
Self-test commands help verify channel integrity and wiring connections.
Small Size
Complete conditioned uniaxial, biaxial and triaxial accelerometers with
digital signal processing in just two cubic inches.
­ uilt-In Power Supply Regulation
B
Continuous unregulated DC power from +8.5 to +36 volts is all that is
required to measure accelerations on all axes. Reverse power voltages
of up to -80 V can be withstood indefinitely. Transients of +80 V for 550 ms
compatible with MIL-STD-704A can be withstood with full operation.
Easy Installation with Minimal Wiring Requirements
A built-in terminal block or cable with 9-pin connector simplifies wiring.
Wiring can be minimized by daisy-chaining the two multidrop RS-485 pins on
up to 30 digital accelerometers. Tapped holes on bottom and back simplify
horizontal or vertical mounting.
Suitable for Harsh Environments
These accelerometers are robust and can be used in harsh environments,
surviving 1500 g powered or unpowered.
Warranty
Measurement Specialties digital accelerometers come with a three-year
factory warranty.
15207A.25207A.35207A Digital Accelerometers
precisionsensors.meas-spec.com Inertial Measurements
Made Fast and Easy
These Measurement Specialties digital
accelerometers are complete, easyto-use, user-configurable sensors
containing one to three accelerometers,
a temperature sensor, signal processor,
RS-485 interface and three analog
outputs in a small, easy-to-install
package.
All channels are sampled simultaneously
to avoid data skewing. The digital signal
processor takes 16-bit samples, filters,
ranges, and calibration compensates
at up to 42,500 samples/sec/channel.
Digital data can be streamed out at up
to 3 Mbit/sec.
The output range, filter frequency and
calibration of each channel, as well
as telemetry configuration, can be set
by the user via the RS-485 command
processor. CRC-16 error checking
is used to ensure command and data
integrity.
The built-in temperature sensor can be
used by critical applications to correct
for any residual temperature effects.
2236 N. Cleveland-Massillon Road
Akron OH 44333 PH : 330-659-3312 8/2/2013
www.meas-spec.com
PRELIMINARY
Specifications for 15207A, 25207A and 35207A - improved specifications available upon request
Ta = Tmin to Tmax; acceleration = 0 g unless otherwise noted; within one year of calibration.
Parameter
Min
Typical
Accelerometer Full Scale Range
Sensitivity Drift 25°C to Tmin or Tmax
±0.5
Zero g Drift 25°C to Tmin or Tmax
Alignment
Transverse Sensitivity
Max
Units
±70
g
Lower ranges are user configurable
%
Percent of sensitivity at 25°C
±1.5
g
Some units to 3 g
±3.0
degrees
0.25
%
Nonlinearity
0.2
Frequency Response
Noise Density
Temperature Sensor
Range
Resolution
Accuracy
-55
0.25
±2
Digital Signal Processor
Sensor Scan Rate
Analog Outputs
Voltage Swing
Impedance to Analog Nonlinearity
0.25
100
130
Digital Output Word Size
16
bits
Filtered, gained and calibration corrected
Power Supply (Vs)
Input Voltage Limits
Input Voltage - Operating
Input Current
Rejection Ratio
-80
+8.5
50
>120
+80
+36
V
V
mA
dB
-80 V continuous, >38 V if <550 ms, duty <1%
Temperature Range (Ta)
-40
+85
°C
Terminal block Option T000 rated to -30°C
Mass
0†
2
% FSR
10†
kHz
2.5
125
0.354
[9,00]
0.354
[9,00]
0.354
[9,00]
0.354
[9,00]
0.354
[9,00]
1
1.437
3 [36,50]
0.240
[6,10]
3
1
2
2
0.689
[17,50]
2.049
[52,05]
Rear View
Bottom View
Spring and cable
added with cable
options
0.187
[4,76]
Lower filter cutoffs are user configurable
Ta = - 40 to +85°C
42,500
Hz
User configurable, channels processed in parallel
V
Ω
% FSR
Configurable to sensor
Iout = 1 mA max
Excluding sensor nonlinearity
DC
grams
3 mm x 0,5 mm Thread
0.138 [3,50] Deep
16 Places on 2 Views
0.575
[14,60]
0.354
[9,00]
Best fit straight line
±3
4.75
220
0.15
0.494
[12,55]
Inherent sensor error, excluding misalignment
°C
°C
°C
78
Mechanical
0.167 0.354
[4,25] [9,00]
Deviation from ideal axes
mg/√Hz
Shock Survival
±1500
±1500
†User configurable low-pass filter 3dB cutoff (number poles configurable)
Conditions/Notes
Dimensions in inches [mm]
g
Any axis for 0.5 ms, powered or unpowered
Connections
T000
T004
Pin
1
2
3
4
5
6
7
Signal Analog1+Analog2+Analog3+ Signal - RS485- RS485+ Aux
Wire Brown
Red
Orange Yellow Green
Blue
Violet
35207A
R070
T004
C002
Instrument
35207A
25207A
15207A
Termination
T004 : 4 ft. cable with DB9M
T000 : Terminal Block
Tnnn : Custom length, nnn ft.
35170A Horizontal
15207A.25207A.35207A Digital Accelerometers
precisionsensors.meas-spec.com 35172A Vertical
9
Gnd
White
Ordering Information
Accelerometer
R070 : ±70g 10kHz
Mounting
adapters
(sold
separately)
8
+Vs
Grey
Calibration
C001 : Standard room temp cal only
C002 : C001 cal plus offset data
over -40 to +85°C range
2236 N. Cleveland-Massillon Road
Akron OH 44333 PH : 330-659-3312 K11
Adapter
0 : None
1 : 35170A Horizontal mounting adapter
3 : 35172A Vertical mounting adapter
Interface kit
0 : None
1 : Interface kit with US power supply
2 : Interface kit with int’l power supply
3 : Interface kit for terminal block (US)
4 : Interface kit for terminal block (int’l)
8/2/2013
www.meas-spec.com
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