35207A

15207A
25207A
Uniaxial
35207A
Biaxial
Digital Accelerometer
User Configurable to ±70 g
Wide Bandwidth
7A
Measurement Specialties, Inc.
2236 N. Cleveland-Massillon Rd.
Akron, Ohio 44333-1255 USA
(330) 659-3312 www.meas-spec.com
precisionsensors.meas-spec.com
Three-Year Limited Warranty
Specifications*
Triaxial
Parameter
Min Typical Max
Units
Accelerometer Full Scale Range
±70
g
Sensitivity Drift 25°C to Tmin or Tmax ±0.5
%
Zero g Drift 25°C to Tmin or Tmax
±1.5
g
Alignment
±3.0
degrees
Transverse Sensitivity
0.25
%
Nonlinearity
0.2
2
% FSR
Frequency Response
0†
10†
kHz
Noise Density
4.0
mg/√Hz
Temperature Sensor
Range
-55
125
°C
Resolution
0.25
°C
Accuracy
±2
±3
°C
Digital Signal Processor
Sensor Scan Rate
42,500
Hz
Analog Outputs
Voltage Swing
0.25
4.75
V
Impedance to Analog 100
130
220
Ω
Nonlinearity
0.15
% FSR
Digital Output Word Size
16
bits
Power Supply (Vs)
Input Voltage Limits
-80
+80
V
Input Voltage - Operating
+8.5
+36
V
Input Current
50
mA
Rejection Ratio
>120
dB
Temperature Range (Ta)
-40
+85
°C
Mass
78
grams
Shock Survival
±1500
±1500
g
Data subject to change without notice
*within one year of calibration
†
User configurable low-pass filter 3dB cutoff (number poles configurable)
Measurement Specialties, Inc. warrants this product against defects
in materials and workmanship for a period of three years from date
of shipment. During the warranty period, Measurement Specialties
will, at its option, either repair or replace products which prove to
be defective.
Exclusions
This warranty does not apply to defects or damage resulting from:
•Improper installation or maintenance
•Customer supplied software or interfacing
•Unauthorized modification or misuse
•Operation outside of the product specifications
Limitations
The warranty set forth above is exclusive and no other warranty,
whether written or oral, is expressed or implied. Measurement
Specialties specifically disclaims the implied warranties of
merchantability and fitness for a particular purpose.
Some jurisdictions do not allow limitations on how long an implied
warranty lasts, so the above limitation or exclusion may not apply to
you. However, any implied warranty of merchantability or fitness is
limited to the three-year duration of this written warranty.
Warranty Service
To obtain service during the warranty period, products must be
returned, transportation prepaid, to Measurement Specialties.
15207A/25207A/35207A Rev. 8/16/13
Connection to a PC using MEAS Adapters
Mounting Instructions
Terminal Block
Male D-Shell
Connector
Accelerometer Connections
Pin
Description
Cable Wire
1
2
3
4
5
6
7
8
9
Analog Output 1+
Analog Output 2+
Analog Output 3+
Signal -
RS485-
RS485+
Aux
+Vs (Power)
Ground
Brown
Red
Orange
Yellow
Green
Blue
Violet
Grey
White*
*connected to braided shield at D-shell pin
CAUTION
}
}
}
}
►Use
►
two 3.0 mm x 0.5 mm thread machine screws to attach
to the bottom or rear 15207A/25207A/35207A mount faces
[recommended torque 5 lbf-in (0.56 N.m)]. Be careful not to
bottom screws in tapped holes as this can strip threads.
►A
► locking compound should be used on all threads to prevent
screws loosening due to vibrations.
twisted pair
0.167 0.354
[4,25] [9,00]
twisted pair
Improper wiring, particularly Power, may cause
permanent damage and void the warranty.
Pins other than +Vs should not exceed 5 V.
Power
Supply
►A
► light film of oil or silicone grease can be used to enhance
contact between mounting surfaces.
twisted pair
twisted pair
Connect 15207A/25207A/35207A to the 35250A, and connect a PC
COM port to the other side of the 35250A using the cable provided.
Plug power supply into wall and plug into power jack on side of
35250A. Accelerometer should then be ready for use.
0.494
[12,55]
0.354
[9,00]
0.354
[9,00]
0.354
[9,00]
0.354
[9,00]
0.354
[9,00]
0.354
[9,00]
0.575
[14,60]
X
1
1.437
3 [36,50]
3 mm x 0,5 mm Thread
0.138 [3,50] Deep
16 Places on 2 Views
0.240
[6,10]
3
1
2
2
0.689
[17,50]
2.049
[52,05]
Rear View
Bottom View
0.187
[4,76]
Spring and cable
added with
cable options
Dimensions in inches [mm]
120VAC
1.3mm
Plug/Jack
15207A
25207A
35207A
Accelerometer
9-Pin
D-Subs
35250A
Adapter
Optional Analog
Monitoring Port
COM
Port
Cable
9-Pin
9-Pin
D-Subs D-Subs
PC
How to Use the 15207A / 25207A / 35207A
as an Analog Sensor
►If
►
a Measurement Specialties 35250A PC Interface
Adapter is available, connect its sensor connector to the
15207A/25207A/35207A, apply power to the 35250A, and
connect a computer to the 35250A RS232 connector. A positive
acceleration (labeled on the accelerometer cover) causes a change
on the corresponding output.
►If
► a 35250A is not available, connect a +8.5 to 36 V DC power
source to +Vs. Connect power source ground to the Gnd pin.
Connect a computer RS485 interface to the two RS485 pins on the
15207A/25207A/35207A.
►Optionally,
►
connect a voltmeter or other instrument to each
15207A/25207A/35207A Analog Output and Signal-. For best
results, use a converter with an input impedance greater than 1 MΩ.
►Keep
►
cable lengths between an analog output and an instrument as
short as practical. Use shielded twisted pair wiring, especially near
electric motors or other noise sources.
►Download
►
Instrument Configuration Utility (ICU) software
from precisionsensors.meas-spec.com and use it to configure
the 15207A/25207A/35207A. When transmitting High Speed
Data to a PC, sample frequency should be at least 10 times the
filter bandwidth when linear interpolation is used for signal
reconstruction. Built-in low-pass filtering can be used to lower the
noise floor and eliminate spurious peak measurements from shortduration shock impulses with insignificant energy content.
Digital Wiring Example
Typical Settings Changed with ICU
►Accelerometer
►
ranges (Range Hi and Range Lo)
►Low-pass
►
filter settings (Filter 3 dB Cutoff)
►Resolution
►
of high-speed data (IRIG Word Bits). Eight (8) bit
data can be set to increase data transfer rates.
►Temperature
►
and accelerometer Channel Units. Each channel
can be configured to measure in units suitable for your
application.
►Inversion
►
of the sensor channels (Invert). Each channel output
can be inverted for maximum flexibility in your measurements.
►The
►
telemetry Bit Rate may be adjusted according to how fast
measurements need to take place. RS232 hardware limits bit
rate to 115 kb.
Retrieving the Calibration Certificate
1.Connect to the unit with ICU.
2.At the bottom of the Configure window, click Reports.
3.A separate window opens with Report selections at the bottom.
Select the Calibration check box. The certificate will then be
displayed.
Typical Direct Wiring
PWR GND
8.5 - 36VDC
SELF TEST
(OPTIONAL)
RS485 HI
RS485 LO
WHT
9
GRY
8
VIO
7
BLU
6
GRN
5
GND
34100A
+VS
AUX
RS485+
RS485-
8
34100A 1+
+VS
9 GND
7 AUX
1
2+ 2
3+ 3
SIG– 4
CH1+
CH1CH2+
CH2CH3+
CH3-
►Start
►
ICU. Use About/Setup to select your COM Port
and confirm the data directory. Select Configuration as the
Program Function and press OK.
►Press
►
the Configuration button. ICU scans for any
instruments attached to the COM Port. If an instrument is
found, ICU connects and reads the instrument configuration.
►The
►
15207A/25207A/35207A comes ready from the factory.
If your application requires changes, use the Main tab
to change the telemetry and the channel tabs to edit each
channel. For each channel, check the Range Hi and Range
Lo and the Filter 3dB Cutoff. If changes are made, you must
press the Write Values to Instrument button. The password
as shipped from the factory is “si”.
►Use
►
the High Speed Acquire button to collect and save data
to disk.
Items Provided in 35250AK0 PC Interface Kit
-35250A PC Interface Adapter
-9 Pin D-sub Female-to-Female Cable
-9 Volt DC Power Supply
Notes:
Analog Wiring Example
SYSTEM 8.5 - 36VDC
POWER
PWR GND
AND
SELF TEST
CONTROL (OPTIONAL)
Installing and Using ICU
►First,
►
uninstall any previous versions of ICU that may be
installed, then download Instrument Configuration Utility
(ICU) software from precisionsensors.meas-spec.com. Then
run Setup_ICU.exe to install ICU.
MEASURING
EQUIPMENT
w/DIFFERENTIAL
INPUTS
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