Vibro Meter CE311 Piezoelectric Accelerometer 444-311-000-013

Vibro Meter CE311 444-311-000-013 Piezoelectric Accelerometer with Integrated Electronics

The Vibro Meter CE311 444-311-000-013 represents advanced vibration monitoring technology for industrial applications. This piezoelectric accelerometer features integrated electronics that eliminate the need for external signal conditioners. The device provides current-modulated output suitable for long-distance signal transmission. Its robust construction ensures reliable performance in harsh environments and potentially explosive areas.

Key Features and Benefits

• Integrated electronics eliminate need for external charge amplifier
• Provides 50 µA/g sensitivity with ±5% tolerance
• Features wide frequency response from 2 to 8000 Hz
• Operates across temperature range from -40 to +125°C
• Enables long-distance signal transmission with current output

Technical Specifications

• Brand: Vibro Meter
• Model: CE311 444-311-000-013 
• Sensitivity: 50 µA/g ±5%
• Measurement Range: 0.004 to 40 g peak
• Frequency Response: 2 to 8000 Hz (-3 dB at 2 Hz)
• Power Supply: 15 to 28 VDC
• Bias Current: 5.5 to 7.5 mA standby
• Resonant Frequency: 20 kHz typical when mounted

Electrical Characteristics

• Signal Transmission: Current-modulated output (2-wire system)
• Output Type: 4 to 20 mA compatible current signal
• Linearity: ±1% over full dynamic measurement range
• Transverse Sensitivity: <3% at 15 Hz with 5 g
• Capacitance:
  • Pole to pole: 10.5 nF + 105 pF/m cable
  • Pole to casing: 20.0 pF + 200 pF/m cable

Environmental Performance

• Temperature Range:
  • Continuous: -40 to +125°C
  • Survival: -55 to +150°C (15 minutes max)
• Temperature Sensitivity: ±5% from -40 to 125°C
• Shock Resistance: 500 g peak (half-sine, 1 ms)
• Construction: Hermetically welded stainless steel
• Protection: Resists humidity, water, steam, oil and contaminants

Physical Specifications

• Housing Material: Stainless steel (1.4441)
• Protection Tube: Stainless steel (1.4541)
• Weight: 245 g (sensor), 135 g/m (cable/hose)
• Mounting: Four M6 × 35 Allen bolts
• Torque: 15 N•m mounting torque
• Connection: Flying leads termination

Ordering Information

• CE311 Standard with 3m integral cable: PNR 444-311-000-013
• Available in standard and Ex versions for hazardous areas
• Integral cable with twisted pair, shielded configuration

FAQ

• Does this require an external signal conditioner?
  No, the CE311 has integrated electronics that eliminate the need for external charge amplifiers.
• What power supply is required?
  The device operates on 15 to 28 VDC with 5.5 to 7.5 mA bias current.
• What is the advantage of current output?
  Current-modulated output enables reliable long-distance signal transmission with minimal signal degradation.
• Is this suitable for hazardous areas?
  Yes, Ex versions are available and certified for use in potentially explosive atmospheres.