Q-Flex QA-750

Single Axis Quartz Accelerometer

QA750

Cost Effective Inertial-grade Sensor

Honeywell’s Q-Flex QA-750 accelerometer is a cost-effective, single axis quartz sensor package is designed for a broad array of high-performance marine and industrial applications for vibration measurement.

As with the entire Q-Flex family of accelerometers, the QA-750 features a patented Q-Flex etched-quartz-flexure seismic system and its amorphous quartz proof-mass structure provides excellent bias, scale factor and axis alignment stability.

The integral electronics develops an acceleration proportional output current, providing both static and dynamic acceleration measurements. By use of a customer supplied output load resistor, appropriately scaled for the acceleration range of the application, the output current can be converted into a voltage.

Product Highlights

<1000 µg (x2)
Accel Bias Repeatability

<1000 ppm
Scale Factor Repeatability (1 year)

<300 µrad
Axis Misalignment

Performance
Input Range±30 g
Bias<8 mg
One-year Composite Repeatability<1000 µg (w/o model data)
Temperature Sensitivity<60 g/ºC
Scale Factor1.20 to 1.46 mA/g
One-year Composite Repeatability<1000 ppm (w/o model data)
Temperature Sensitivity<190 ppm/ºC
Axis Misalignment<7000 µrad
One-year Composite Repeatability<300 µrad
Vibration Rectification<60 g/g2rms (50-500 Hz)
<200 g/g2rms (50-500 Hz)
Intrinsic Noise<7 g-rms (0-10 Hz)
<70 g-rms (10-500 Hz)
Environment
Operating Temperature Range-55 to +95 ºC
Shock200 g
Vibration Peak Sine20 g @ 30-500 Hz
Resolution/Threshold<1 µg
Bandwidth>300 Hz
Electrical
Quiescent Current per Supply<16 mA
Quiescent Power<480 mW @ ±15 VDC
Electrical InterfaceTemp Sensor, Voltage Self-Test
Input Voltage±13 to ±18
Physical
Weight52.5 ±4 grams
Diameter below mounting surfaceØ1.07 ±0.01 in.
Height bottom to mounting surface.600 in. Max
Case Material300 Series Stainless Steel

Additional product specifications, outline drawings and block diagrams and test data are available on request.

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