Monitran MTN/1130 Industrial Accelerometer
- Manufacturer: Monitran
- Category: Accelerometers and Vibration Sensors, Amplified, SENSORS
MTN/1130 top-entry constant current piezoelectric accelerometer for vibrations in high-speed light machinery, small bearings, and spindles. Ultra-thin 15 mm body and nominal mass of 30 g.
Sensitivity of 100 mV/g (±10% at 80 Hz). Frequency response of 2 Hz to 15 kHz (±5%), with mounted resonance at 22 kHz. Range of ±80 g.
Solid stainless steel body with IP67 protection rating. Galvanically isolated base, preventing ground loops. Operating temperature from -55 °C to +140 °C. Integral ETFE cable with steel braid.
Three mounting options: 10-32 UNF female thread (F), M8 tapered bolt (K) or M6 quick-release swivel base (QR).
- Diameter of 15 mm, top-entry and mass of 30 g.
- Frequency response from 2 Hz to 15 kHz, resonance at 22 kHz.
- Operating temperature: -55 °C to 140 °C.
- Mechanical versions: MTN/1130F (female), MTN/1130K (conical) and MTN/1130QR (Swivel).
- Electrical noise: < 0.1 mg (maximum).
- Cross-sectional sensitivity: < 5%.
- Power supply: 0.5 to 8 mA (constant current), bias 12 V DC.
- Tightening torque: 8 Nm (M8/M6) and 6 Nm (10-32 UNF).
Technical Frequently Asked Questions
1. What is the main difference between the F, K, and QR variants of this accelerometer?
The «F» variant has a female thread (10-32 UNF) for adapter bolts. The «K» variant has a tapered M8 male bolt. The «QR» version has an M6 quick-release swivel base that allows for cable routing.
2. Why is this sensor used in high-speed lightweight machinery?
Its ultra-slim 15mm body and 30-gram weight minimize alteration to the monitored system's resonant frequency. It measures up to 15 kHz.
3. How are ground loops avoided?
The Base Isolated electrically separates the accelerometer chassis from the machine's ground. This prevents noise from motors, pumps, or fans from coupling to the 100 mV/g signal.
Properties
| Feature | Technical Specification |
| Sensor Type | Industrial Accelerometer (Top Entry) |
| Standard Sensitivity | 100 mV/g (±10% at 80 Hz) |
| Frequency Response | 2 Hz to 15 kHz (±5%) |
| Resonance Frequency | 22 kHz (Nominal to the assembly) |
| Electrical Insulation | Isolated Base (Prevents Ground Loops) |
| Operating Temperature | Extended range from -55 °C to +140 °C |
| Transversal Sensitivity | < 5% |
| Electrical Noise | < 0.1 mg (Maximum) |
| Nutrition / Bias | 0.5 to 8 mA (Constant Current) / 12V DC |
| Body Material | Solid Stainless Steel (15mm Profile) |
| Dynamic Mass | 30 grams (Nominal) |
| Tightening Torque | 8 Nm (M8/M6) / 6 Nm (10-32 UNF) |
| Fixing Options | Female 10-32 (F) / Male M8 (K) / Swivel M6 (QR) |
| Electrical Connection | Integral ETFE cable with steel mesh |
| Degree of Protection | IP67 (Industrial hermetic sealing) |
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