2-axis accelerometer JDHA series

1-axis3-axisMEMS

Product Overview
The Ruby MEMS digital accelerometers from Jewell Instruments are high-performance inertial sensors delivering strong resolution, frequency response and bandwidth in an IP67 package that uses the same mounting configuration as Jewell’s existing MEMS sensors.

Features

• Ranges: ±0.5 g to ±1.0 g
• Temperature compensated
• Digital interface options: ASCII (RS-485 / RS-232) and Modbus (RS-485)
• High-precision with 30 μg digital resolution
• Operating temperature range: -40° to +85° C
• Seal: IP67
• M12 and DB9 termination options
• CE and RoHS compliant

Applications

• Aerospace
• Military
• Robotics
• Academic research
• Wind turbine controls
• Track monitoring and testing
• Wind power monitoring
• Vibration monitoring
• Automated control systems
• Vehicle testing

Dimensions
Dimensions: 2.25 × 2.25 × 1.99 in

Performance Specifications (selected)
Measurement Range (g): ±0.2 ; ±1.0
Digital Resolution (μg, max): 30 ; 30
Repeatability (mg): 70 ; 70
Nonlinearity (% FRO) max: 0.04 ; 0.01
Bias Temperature Sensitivity (mg/°C max): 0.005 ; 0.005
Transverse Axis Misalignment (° max): ±0.25 ; ±0.25
Bandwidth (Hz nom) (-3 dB): (Sample Rate) / 4 ; (Sample Rate) / 4
Accuracy - Temp Sensor (°C, max): ±2 ; ±2
Warm Up Time (seconds typ): 0.5 ; 0.5

Electrical / Protocol
Number of axes: 1, 2, or 3
Input voltage range (VDC): 5 min, 9 to 36 typ, 38 max (reverse wiring protected)
Power - RS-485 termination enabled (mW, max): 800.0
Power - RS-485 termination disabled (mW, max): 600.0
Protocol: ASCII (RS-485); ASCII (RS-232); MODBUS-RTU
Baud (bps): 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 500000 (max)
Communication settings: 8 bits, 1 stop bit, even | odd
Data sample rate (Hz): 3.9, 7.8, 15.6, 31.2, 62.5, 125
Node ID: 0 + last 2 digits of serial number
Filtering: user selectable
Bus termination - internal (120Ω): On/Off

Environment / Mechanical
Operating temperature range: -40° to +85° C
Storage temperature range: -55° to +105° C
Vibration: 20 grms, 5 Hz to 2 kHz
Shock: 180 g, 0.011 sec, 1/2 sine
Seal: IP67 (when mated to IP67 connector)

Technical characteristics / specifications

• Model family: JDHA series (100 / 200 / 300 variants)
• Dimensions: 2.25 × 2.25 × 1.99 in
• Ranges: up to ±1.0 g
• Digital resolution: 30 μg (max)
• Interfaces: ASCII (RS-485, RS-232), MODBUS-RTU
• Sample rates: selectable (3.9 to 125 Hz)
• Power: supports internal RS-485 termination (800 mW max) or disabled (600 mW max)
• Operating temperature: -40° to +85° C
• Sealing: IP67 when mated to IP67 connector
• Compliance: CE, RoHS