Vibro-Meter-CA202 piezoelectric accelerometer

Vibro-Meter-CA202 piezoelectric accelerometer

The CA202 is fitted with an integral low-noise cable that is protected by a flexible stainless-steel protection hose (leaktight) which is hermetically welded to the sensor to produce a sealed leaktight assembly. The CA202 piezoelectric accelerometer is available in different versions for different industrial environments: Ex versions for installation in potentially explosive atmospheres (hazardous areas) and standard versions for use in nonhazardous areas. The CA202 piezoelectric accelerometer is designed for heavy-duty industrial vibration monitoring and measurement. For specific applications, contact your local Meggitt representative

General Input power requirements : None Signal transmission : 2-pin system, insulated from case, charge output Signal processing : Charge converter (IPC70x signal conditioner) Operating (At 23°C ±5°C, 73°F ±9°F) Sensitivity (at 120 Hz with 5 g, see Calibration on page 4) : 100 pC/g ±5% Dynamic measurement range : 0.01 to 400 g peak Overload capacity (spikes) : Up to 500 g peak Linearity • 0.01 to 20 g (peak) : ±1% • 20 to 400 g (peak) : ±2% Transverse sensitivity : ≤3% Resonant frequency : >22 kHz nominal Frequency response • 0.5 to 6000 Hz : ±5% (lower cutoff frequency is determined by the signal conditioner) • Typical deviation at 8 kHz : +10% Internal insulation resistance : 109 Ω minimum Capacitance (nominal) • Sensor : 5000 pF pin to pin. 10 pF pin to case (ground). • Cable (per metre of cable) : 105 pF/m pin to pin. 210 pF/m pin to case (ground). Environmental Temperature range • Continuous operation : −55 to +260°C (−67 to +500°F) for sensor. −55 to +200°C (−67 to +392°F) for integral cable. • Short-term survival : −70 to +280°C (−94 to +536°F) for sensor. −62 to +250°C (−80 to +482°F) for integral cable. Temperature sensitivity error (with respect to 23°C, 73°F) • −55 to +23°C (−67 to +73°F) : 0.25%/°C • +23 to 260°C (−73 to +500°F) : 0.1%/°C Corrosion, humidity • Sensor : Austenitic stainless-steel (1.4441), hermetically welded • Protection hose : Heat-resistant stainless-steel (1.4541), hermetically welded Note: The sensor and the flexible protection hose are hermetically welded to one another to create a sealed leaktight assembly that is impervious to 100% relative humidity (RH), water, steam, oil, and sea-salt atmospheres, in addition to other potential contaminants such as dust, fungus and sand. Base-strain sensitivity : 0.15 x 10−3 g/µε at 250 µε peak-peak Shock acceleration : ≤1000 g peak (half sine, 1 ms duration)

Approvals Conformity : European Union (EU) declaration of conformity (CE marking). EAC marking, Eurasian Customs Union (EACU) certificate/ declaration of conformity. Electromagnetic compatibility : EN 61000-6-2:2005. EN 61000-6-4:2007 + A1:2011. Electrical safety : EN 61010-1:2010 Environmental management : RoHS compliant (2011/65/EU) Hazardous areas : Ex approved versions (see Potentially explosive atmospheres on page 3) Calibration Dynamic calibration at factory at 5 g peak and 120 Hz (23°C, 73°F). No subsequent calibration necessary. Physical Case (housing) material : Austenitic stainless steel Dimensions : See Mechanical drawings on page 5 Weight • Sensor : 250 g (0.55 lb) approx. • Cable : 135 g/m (0.30 lb/m) approx. Mounting : Four M6 × 35 Allen screws and four M4 spring-lock washers with a nominal tightening torque of 15 N•m (11.1 lb-ft). Note: Electrical insulation of the mounting surface is not required. See Mounting adaptors in Accessories on page 6. Refer also to the Vibration measurement chains using CAxxx piezoelectric accelerometers installation manual. Connector : Terminated with flying leads

Type Designation Part number (PNR)

CA202 Different versions of the piezoelectric accelerometer:

Ex version with 3 m integral cable 144-202-000-106

Ex version with 6 m integral cable 144-202-000-116

Ex version with 11 m integral cable 144-202-000-126

Ex version with 20 m integral cable 144-202-000-136

Standard version with 3 m integral cable 144-202-000-206

Standard version with 6 m integral cable 144-202-000-216

Standard version with 11 m integral cable 144-202-000-226

Standard version with 20 m integral cable 144-202-000-236

Item Type Part number (PNR) Mounting adaptors MA133 Mounting adapter kit for CA20x and CE31x, with Micaver® (mica-glass) thermally isolating base. Refer to product drawing 809-133-000V011. 809-133-000-011