444-311-000-113 Piezoelectric Accelerometer - Vibro Meter

Vibro Meter 444-311-000-113 Ex Piezoelectric Accelerometer

Key Features and Benefits

• Brand: Vibro Meter | Model: 444-311-000-113
• Certified for explosive atmospheres with full safety compliance
• Sensitivity: 50 µA/g ±5% ensures accurate measurements
• Frequency response: 2 to 8000 Hz covers wide monitoring range
• Extended temperature range: -40 to 125°C continuous operation
• Current output enables long-distance signal transmission
• Integrated electronics eliminate external signal conditioners
• 3-meter integral cable with stainless steel protection tube

Technical Specifications

• Power supply: 15 to 28 VDC with 5.5-7.5 mA standby current
• Dynamic measurement range: 0.004 to 40 gpeak
• Overload capacity: handles spikes up to 100 gpeak
• High linearity: ±1% across entire dynamic range
• Low transverse sensitivity: <3% for precise directional measurement
• Mounted resonant frequency: 20 kHz typical
• Shock resistance: 500 gpeak (half-sine, 1 ms duration)
• Base strain sensitivity: 0.0015 g/µε typical

Environmental Protection

• Hermetically welded stainless steel housing (1.4441/1.4541)
• Complete protection against 100% humidity and water ingress
• Resists steam, oils, sea-salt atmospheres, and industrial contaminants
• Impervious to dust, fungus, sand, and other particulate matter
• Short-term survival: -55 to 150°C for 15 minutes maximum

Installation Guidelines

• Mount using four M6 × 35 Allen bolts (12.9 steel, DIN 912)
• Include four M6 spring-steel washers (DIN 7980)
• Apply 15 N•m (11.1 lb-ft) mounting torque for secure installation
• Sensor weight: approximately 245 g (0.54 lb)
• Cable and protection tube: 135 g/m (0.091 lb/ft)
• 3-meter integral cable provides flexible installation options

Contact our sales team for explosive atmosphere applications: sales@nex-auto.com