CA901 144-901-000-621 Piezoelectric Accelerometer(Ex)
Condition:
Brand New & Original
Availability:
In Stock
Delivery Time:
5-7 days
EXW Price:
$30000
Payment:
T/T, Full Payment Before Shipping
The CA901 144-901-000-621 is an ATEX-certified piezoelectric accelerometer from Meggitt Vibro-Meter, part of the CA901 high-temperature vibration sensor series. The CA901 combines VC2 single-crystal sensing technology with a compression-mode structure and is specifically designed for long-term vibration monitoring in high-temperature and extreme environments. The CA901 sensor has a nominal sensitivity of 10 pC/g and a frequency response range of 3 to 2,800 Hz, with an operating temperature range of -196°C to +700°C under specified extreme conditions. The sensor is equipped with an integrated mineral-insulated twin-core cable and a galvanically isolated charge output system, providing stable acceleration measurements in harsh environments.
Main Functions & Features
1. High-Temperature Acceleration Measurement
The CA901 measures mechanical acceleration using its piezoelectric sensing element. Its continuous operating temperature range is -54°C to +650°C, with an extreme temperature tolerance range of -196°C to +700°C.
2. Electrical Isolation
The CA901 employs a two-pole signal transmission system that is electrically isolated from the sensor housing. Its charge output is specifically designed for signal processing by a charge converter.
3. Resistance to Harsh Environments
The accelerometer is constructed from a titanium-nickel alloy 600 (Inconel 600) and is hermetically sealed; it is resistant to pressure, mechanical shock, and specific types of radiation exposure.
4. Suitable for ATEX Hazardous Areas
Specifications
Crystal material: VC2 single crystal
Construction: Compression mode
Sensitivity at 120 Hz：10 pC/g ±5%
Dynamic measuring range (random): 0.001 to 200 g peak
Overload capacity (spikes): Up to 500 g peak
Linearity：±1% over dynamic measuring range
Transverse sensitivity: Less than 5%
Mounted resonance frequency: Greater than 17 kHz nominal
Frequency response, 3–2,800 Hz：±5% nominal
Frequency response, 2,800–3,700 Hz: Deviation less than 10%
Internal insulation resistance: Minimum 10⁹ Ω
Continuous temperature：-54°C to +650°C
Extreme temperature：-196°C to +700°C
Shock acceleration: Less than 500 g peak, half-sine 1 ms
Pressure resistance：140 bar at 23°C; 80 bar at 300°C
Housing construction: Hermetically welded Inconel 600
Signal output: Two-pole, case-insulated charge output
| Brief Introduction | |
| Manufacturer | Vibration Monitoring |
| Module/Order Number | CA901 144-901-000-621 |
| Description | Piezoelectric accelerometer |
| Country of origin | Switzerland |
| Dimension & Net Weight | 0.5 kg |
| Packing Weight | 2 kg |
FAQ
1. Can the CA901 be used in potentially explosive and hazardous environments?
— Yes, the 144-901-000-621 model is explicitly listed in Meggitt’s EU Declaration of Conformity and is suitable for ATEX protection modes Ex ia and Ex nA.
2. Can the CA901 operate normally over the long term at ambient temperatures ranging from -196°C to +700°C?
— No, the CA901’s continuous operating temperature range is -54°C to +650°C; -196°C to +700°C is the maximum operating temperature range it can achieve.
3. CA901 Ordering Information?
— CA901 Standard Version & CA901 Ex Version.
(1)CA901 Standard Version
144-901-000-282: cable length 3.5 m
144-901-000-212: cable length 5 m
144-901-000-252: cable length 8 m
144-901-000-222: cable length 12.5 m
(2)CA901 Ex Version
144-901-000-601: cable length 5 m
144-901-000-611
144-901-000-621
144-901-000-631
144-901-000-701
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