Monitran MTN/1186 Dual Output Accelerometer
- Manufacturer: Monitran
- Category: Accelerometers and Vibration Sensors, Amplified, SENSORS
Predictive maintenance management is often limited by the need to choose between simple continuous monitoring to the PLC or detailed vibration analysis. Installing two sensors at each critical point doubles the costs of wiring, drilling, and maintenance, while relying on only a 4-20 mA signal prevents diagnosing the root cause of a failure through frequency spectrum analysis.
This dual-output accelerometer solves this inefficiency by integrating two sensors into a single robust stainless steel chassis. It provides a 4-20 mA current signal proportional to RMS speed for real-time process control, and a pure 100 mV/g AC signal for high-fidelity dynamic data capture. As a top-entry device, it optimizes installation in HVAC and building services applications where long-term reliability is essential.
Equipped with a 3-pin 62GB serial military connector and IP67-rated sealing, the sensor is protected against dust and moisture ingress. Its base-isolated architecture prevents signal contamination from electrical harmonics and ground loops, ensuring accurate readings even on machines with variable frequency drives.
- Output proportional to speed 4-20 mA and acceleration output of 100 mV/g.
- Wide loop feed of 12V to 32V DC for direct integration into PLC.
- Frequency response at speed of 2 Hz to 1 kHz for detecting imbalances and slack.
- Mounted base resonance of 5 kHz in a robust structure of 150g.
Technical Frequently Asked Questions
1. How are both signals connected simultaneously?
The sensor uses a 3-pin military connector that shares power and output signals. With the appropriate wiring (MTN/MH008), the 4-20 mA signal is routed to the PLC's analog input, while the AC signal is routed to the data collector or FFT analyzer.
2. What is the maximum speed range that the current output can measure?
The standard range is configurable upon request. The most common options include scales of 0-10, 0-20, 0-25, 0-50, or up to 0-100 mm/s RMS, allowing the PLC's sensitivity to be adjusted to the expected vibration severity of the machine.
3. Is it suitable for use in environments with electromagnetic interference?
Yes. Thanks to its "Base Isolated" design and shielded stainless steel chassis, the sensor is highly immune to noise from electric motors and drives, eliminating the need for additional external isolators.
Properties
| Feature | Technical Specification |
| Sensor Type | Dual Output (AC/DC) Industrial Accelerometer |
| DC Analog Output | 4-20 mA (Proportional to RMS Speed) |
| Analog AC Output | 100 mV/g (Optional 50 mV/g) |
| Power Range | 12V to 32V DC |
| Frequency Response (DC) | 2 Hz to 1 kHz (±10%) |
| Baseline Resonance | 5 kHz (Nominal) |
| Electrical Insulation | Isolated Base |
| Operating Temperature | -25 °C to +90 °C |
| Transversal Sensitivity | < 5% |
| Body Material | Solid Stainless Steel |
| Dynamic Mass | 150 grams (Nominal) |
| Electrical Connection | Military 3-Pin Connector (62GB Series) |
| Configurable Models | MTN/1186 (1/4″ UNF) and MTN/1186Q (Quick Fit) |
| Dynamic Range | 30g peak (for 100mV/g) |
| Degree of Protection | IP67 |
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