Monitran MTN/1188 Dual Output Accelerometer
- Manufacturer: Monitran
- Category: Accelerometers and Vibration Sensors, Amplified, SENSORS
Monitoring critical machinery with high centrifugal forces, such as industrial centrifuges or high-pressure pumps, requires strict control of acceleration levels to prevent catastrophic structural failures. In these environments, a simple velocity reading may not be sufficient to detect premature impacts, while periodic spectral analysis leaves "blind windows" between inspections.
This dual-output accelerometer solves this problem by providing continuous monitoring and in-depth diagnostics at a single mounting point. It sends a 4-20 mA current signal proportional to RMS acceleration directly to the PLC for alarm management and emergency shutdowns, while simultaneously maintaining a pure 100 mV/g AC output for detailed bearing health analysis using external data collectors.
Constructed from solid stainless steel and sealed to IP67 standards, the sensor is designed for continuous operation in the harshest environmental conditions. Its top-entry configuration and galvanically isolated base ensure that the signal arrives free of electromagnetic noise, even in installations with high-power motors and variable frequency drives.
- Simultaneous monitoring of RMS acceleration (4-20 mA) and dynamic acceleration (AC).
- Configurable measurement ranges from 0-1g up to 0-20g RMS.
- Linear frequency response of 2 Hz to 1 kHz with resonance at 5 kHz.
- Industrial connection via 62GB military connector 3-pin.
Technical Frequently Asked Questions
1. When should I choose MTN/1188 over MTN/1186?
You should choose the MTN/1188 if your priority is monitoring acceleration (g) rather than speed (mm/s). This is vital in very high-speed machines or in processes such as centrifuging and crushing, where acceleration peaks are the earliest indicator of mechanical degradation.
2. Is it possible to adjust the output range from 4-20 mA?
Yes, the range is factory-configured according to application requirements. Available scales cover from 0-1g to 0-20g RMS, ensuring that the current signal utilizes the full resolution of the PLC for the expected vibration level.
3. What type of maintenance does the 3-pin military connector require?
The 62GB serial connector is extremely robust and designed for dirty environments. It is only recommended to ensure that the mating connector (MTN/MH008) is properly tightened to maintain IP67 protection and prevent false contacts due to extreme vibration.
Properties
| Feature | Technical Specification |
| Sensor Type | Dual Output (AC/DC) Industrial Accelerometer |
| DC Analog Output | 4-20 mA (Proportional to RMS acceleration g) |
| Analog AC Output | 100 mV/g (Optional 50 mV/g) |
| Power Range | 12V to 32V DC (4-20mA Loop) |
| Frequency Response | 2 Hz to 1 kHz (±10%) |
| Resonance Frequency | 5 kHz (Minimum) |
| Electrical Insulation | Isolated Base |
| Measuring Range | 0-1g up to 0-20g RMS (Configurable) |
| Operating Temperature | -25 °C to +90 °C |
| Body Material | Solid Stainless Steel |
| Dynamic Mass | 150 grams (Nominal) |
| Electrical Connection | Military 3-Pin Connector (62GB Series) |
| Configurable Models | MTN/1188 (1/4″ UNF) and MTN/1188Q (Quick Fit) |
| Tightening Torque | 8 Nm |
| Degree of Protection | IP67 |
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