CE311 444-311-000-023

The CE311 444-311-000-023 is a piezoelectric accelerometer in the Standard Version with a 6-meter integrated cable. It is specifically designed for mechanical vibration monitoring and protection in harsh industrial environments. It features built-in charge-to-current conversion electronics and outputs a current-modulated signal, enabling direct long-distance signal transmission without the need for an external charge amplifier.

The CE311 employs a symmetric shear-mode measuring element made of polycrystalline material. The sensor's built-in electronics handle signal processing and charge-to-current conversion, outputting a current-modulated signal suitable for long-distance transmission. The sensor body is connected to the integrated shielded twisted-pair cable via hermetic welding, and the cable is fully protected by a flexible stainless steel hose (protective tube).

The hermetically welded joint between the sensor and the protective tube creates a fully sealed system capable of withstanding 100% relative humidity, water, steam, oil, salt fog, as well as potential contaminants such as dust, fungi, and sand. This makes the CE311 a highly reliable device suitable for long-term industrial vibration monitoring.

• Sensitivity: 50 μA/g ±5%
• Dynamic Measurement Range: 0.004 to 40 g peak
• Overload Capacity (Peak): Up to 100 g peak
• Linearity: ±1% (within the dynamic measurement range)
• Transverse Sensitivity: <3% (measured at 15 Hz and 5 g)
• Resonance Frequency (after installation): 20 kHz (typical)
• Frequency Response: -3 dB @ 2 Hz; ≤±5% between 6 and 5000 Hz; ≤±10% between 5000 and 8000 Hz
• Power supply: 15 to 28 VDC, bias current 5.5 to 7.5 mA
• Signal Transmission: Current-modulated output (2-wire)
• Shock Acceleration: 500 g peak (half-sine wave, 1 ms duration)
• Base Strain Sensitivity: 0.0015 g/μ (typical)

The CE311 series is categorized by cable length and explosion-proof certification. Ordering information is as follows:

MA133: Thermal Insulation Kit
TA102: Mounting Adapter
CG310: 3-pin connector (male: MS3106E14S-7P, female: MS3106E14S-7S)
JB105 / JB116: Junction box
K2xx: Transmission cable
GSI127: Electrical isolation unit

• Select the cable length based on the distance from the sensor to the junction box or monitoring system. The 6-meter version is suitable for installations at medium distances.
• If a longer cable is required, use connectors, a junction box, and a transmission cable.
• If the mounting surface temperature exceeds the sensor's permissible range, use the MA133 thermal insulation kit.
• The monitoring system must support current-modulated input (2-wire, 15-28 VDC power supply, bias current 5.5-7.5 mA).

At a certain industrial site, mechanical equipment requires long-term vibration monitoring. However, there is a significant distance between the sensor installation location and the monitoring system, and the environment contains oil, moisture, and dust. The CE311 444-311-000-023 (Standard Version, 6-meter integrated cable) was selected; utilizing its built-in electronic circuitry and current-modulated output, it transmits signals over long distances to the monitoring system.
The fully welded, sealed construction and stainless steel protective hose effectively resist oil, moisture, and dust, ensuring the sensor's long-term, reliable operation. When vibration amplitude exceeds a preset threshold, the monitoring system triggers an alarm or protective action to prevent equipment damage and unplanned downtime.

Yes. The CE311 uses current-modulated output, making it suitable for long-distance transmission. It can be extended using connectors, junction boxes, and transmission cables.

Continuous operation: -40°C to +125°C; short-term exposure (up to 15 minutes): -55°C to +150°C.

No. The CE311 has built-in electronic circuitry that performs charge-to-current conversion and directly outputs a current-modulated signal, eliminating the need for an external signal conditioner.

Standard industrial warranty: 12 months; with proper installation and no overloading, the product has a service life of 5-10 years.

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