The 786-500 accelerometer is suited to condition monitoring and predictive maintenance of a variety of rotating equipment. Slow speed applications benefit from the strong 500 mV/g output of the 786-500 because it overcomes data collector noise that can mask indicators at low frequencies. In high speed applications, the 786-500 provides five times the sensitivity of general purpose accelerometers for better detection of low level vibrations.

 

 

 

 

Sensitivity, ±5%, 25°C................................................................. 500 mV/g

Acceleration range ..................................................................... 10 g peak

Amplitude nonlinearity............................................................... 1%

Frequency response:

     ±5%.................................................................................... 0.7 - 5,000 Hz

     ±10%................................................................................... 0.5 - 9,000 Hz

     ±3 dB.................................................................................. 0.2 - 14,000 Hz

Resonance frequency................................................................. 30 kHz

Transverse sensitivity, max........................................................ 5% of axial

Temperature response:

-50°C.................................................................................. -5%

+120°C................................................................................ +5%

 

Power requirement:

voltage source ...................................... 18 - 30 VDC

current regulating diode ...................... 2 - 10 mA

Electrical noise, equiv g:

Broadband          2.5 Hz to 25 kHz.......................................... 250 µg

Spectral              10 Hz.......................................... 2.5 µg/√Hz

                          100 Hz.......................................... 1.5 µg/√Hz

                          1000 Hz.......................................... 1.5 µg/√Hz

Output impedance, max.............................................................. 100 Ω

Bias output voltage..................................................................... 12 VDC Grounding................................................................................... case isolated, internally shielded

 

Temperature range..................................................................... -50 to 120°C

Vibration limit............................................................................. 500 g peak

Shock limit.................................................................................. 5,000 g peak

Electromagnetic sensitivity, equiv g, max ................................. 70 µg/gauss Sealing ....................................................................................... hermetic

Base strain sensitivity, max........................................................ 0.0002 g/µstrain

 

Sensing element design............................................................. PZT ceramic / shear Weight......................................................................................... 90 grams

Case material............................................................................. 316L stainless steel Mounting..................................................................................... 1/4 - 28 UNF tapped hole

Output connector........................................................................ 2 pin, MIL-C-5015 style

Mating connector........................................................................ R6 type

Recommended cabling............................................................... J10 / J9T2A

 

 

Note: Frequency response limits spectral and noise values are typical

Accessories supplied: SF6 mounting stud (International customers specify mounting requirements); calibration data (level 2)