MTN/7000 DC and AC Response Accelerometer
- Manufacturer: Monitran
- Category: Accelerometers and Vibration Sensors, Amplified, SENSORS
Vibration monitoring in extremely slow-rotating machinery, such as large wind turbines, industrial waterwheels, or positioning systems, requires sensors that do not lose signal at low frequencies. Conventional piezoelectric accelerometers have a lower limit (typically 1-2 Hz), which prevents them from capturing near-static movements or changes in structural tilt.
The MTN/7000 series accelerometer overcomes this technical limitation by offering a frequency response starting from 0 Hz (DC). This allows analysts to measure not only dynamic vibration up to 1 kHz, but also the constant acceleration due to gravity, facilitating the study of the dynamics of structures moving at very low revolutions per minute. Its superior output design and solid stainless steel construction ensure exceptional durability in test benches and industrial environments where low-frequency accuracy is essential.
Equipped with an isolated base to prevent ground loops and IP65-rated sealing, the device comes with an integral 4-wire twisted cable protected with stainless steel braiding. This architecture ensures clean signal transmission for both DC and AC outputs, enabling versatile integration into data collectors and acquisition systems for research and development (R&D).
- Measurement capability of static acceleration (0 Hz) and dynamics.
- Configurable ranges from ±1g to ±50g according to the application.
- Linear frequency response from DC up to 1 kHz (±5%).
- Robust chassis in stainless steel with galvanic isolation base.
Technical Frequently Asked Questions
1. What does it mean that the sensor indicates 1g of offset when mounted horizontally?
Because it has a DC response, the sensor detects the force of gravity. If mounted perfectly horizontally, the sensing element will detect Earth's attraction and display an output equivalent to 1g. This is advantageous, as it allows you to verify the sensor's calibration and orientation simply by changing its position.
2. In what applications is the use of the MTN/7000 series critical?
It is essential in machines that rotate at less than 60 RPM, where standard sensors would "attenuate" the actual signal. It is also widely used in automotive and aerospace testing to measure constant linear accelerations during maneuvers or braking, something a conventional accelerometer cannot do.
3. How do you select the right model between the 7000, 7010, and 7020?
The main difference lies in the mounting format. The MTN/7000 is a compact, 4-point mounting unit, while the MTN/7020 is the standard cylindrical version with a 1/4″ UNF center thread, making it easy to replace common industrial accelerometers in existing installations.
Properties
| Feature | Technical Specification |
| Sensor Type | DC and AC Response Accelerometer (Capacitive) |
| Standard Sensitivity | 50 mV/g 100 mV/g (as requested) |
| Frequency Response | 0 Hz (DC) to 1 kHz (±5%) |
| Available Ranges | ±1g, ±2g, ±5g, ±10g, ±20g, ±50g |
| Resonance Frequency | 700 Hz (in ±1g) to 1800 Hz (in ±50g) |
| Electrical Insulation | Isolated Base |
| Operating Temperature | -20 °C to +85 °C (Optional up to 125 °C) |
| DC Power Supply | 12V to 24V DC (7 mA) |
| Output Impedance | 50 Ohms |
| Body Material | Solid Stainless Steel |
| Dynamic Mass | 40 grams (Nominal) |
| Electrical Connection | 4-wire integral cable (5m) with stainless steel mesh |
| Configurable Models | MTN/7000, 7010 (4 points) and 7020 (Single thread) |
| Acceleration Limit | x 20 times the range in any direction |
| Degree of Protection | IP65 |
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