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Model 785A
Economy, Side Exit, General Purpose Industrial accelerometer
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DYNAMIC
Sensitivity, ±10%, 25°C.............................................................................. 100 mV/g
Acceleration Range..................................................................................... 80 g peak
Amplitude Nonlinearity................................................................................ 1%
Frequency Response:
±10%................................................................................................. 2.0 - 8,000 Hz
±3 dB................................................................................................ 1.0 - 12,000 Hz
Resonance Frequency, mounted, minimum............................................... 30 kHz
Transverse Sensitivity, max........................................................................ 5% of axial
Temperature Response.............................................................................. -50°C -10%
+120°C +7%
ELECTRICAL
Power Requirement: voltage source................................................ 18 - 30 VDC
current regulating diode.................................. 2 - 10 mA
Electrical Noise, equiv. g, nominal:
Broadband 2.5 Hz to 25 kHz............................................... 1,260
Spectral 10 Hz............................................... 11 ^g/VHz
100 Hz............................................... 6 Lig/VHz
1000 Hz............................................... 6 Lig/VHz
Output Impedance...................................................................................... 100 Q
Bias Output Voltage, nominal..................................................................... 12 VDC
Grounding................................................................................................... case isolated, internally shielded
ENVIRONMENTAL
Temperature Range.................................................................................... -50 to 120°C
Vibration Limit............................................................................................. 500 g
Shock Limit, min.......................................................................................... 5,000 g
Sealing ........................................................................................................ hermetic
Base Strain Sensitivity, max....................................................................... 0.002 g/^strain
PHYSICA
Weight......................................................................................................... 85 grams
Case Material.............................................................................................. 316L stainless steel
Mounting..................................................................................................... 1/4 - 28 captive hex head screw
with 0.046" dia-meter safety wire
hole
Output Connector........................................................................................ 2 pin MIL-C-5015 style
Mating Connector........................................................................................ R6 type, but not R6>Sl
Recommended Cabling.............................................................................. J10 / J9T2A
Connections:
FEATURES
• Corrosion resistant
• Hermetic design
• Ground isolated
• ESD protection
• Reverse wiring protection
• RFI protection
7/16" Hex ^ thread
2 pin connector MIL-C-5015style
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.98"
11
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*-—0.91"--►
1/4-28 " mounting thread
SIDE VIEW
CO
0.60" R
Î
.75"
■*-1.20"-
BOTTOM VIEW
CONNECTOR PIN
FUNCTION
SHELL
case
A
power / signal
B
common
NOTES: 1 At 90 inch/lb. torquACCESSORIES SUPPLIED:
ie.
1/4-28 captive hex head bolt; Calibration data (level 2).
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W-15
Vibration Instrumentation
26
WILCOXON RESEARCH, INC. • 1-800-945-2696 • TEL 301-330-8811 • FAX 301-330-8873 • EMAIL sensors@wilcoxon.com • WEB www.wilcoxon.com
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Contents table 1 - 2
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101-139