Monitran MTN/8301 Accelerometer Tester
- Manufacturer: Monitran
- Category: Calibrators and Simulators, INSTRUMENTATION
Rapid diagnosis of electrical integrity in vibration instrumentation systems requires verification tools that identify continuity faults and voltage deviations without the need for laboratory equipment. The MTN/8301 is an accelerometer and cable tester designed to validate the functional status of vibration sensors. The unit detects open circuits, short circuits, and out-of-range bias levels (high or low) via a direct connection through a BNC socket located on the front panel.
This tester uses a visual indication system based on a tri-color LED that categorizes the status of the sensor under test according to its internal voltage limits. A green indication confirms that the accelerometer and its cable are operating within the correct parameters (between 4.4V and 11.7V). A red signal identifies an open circuit condition or an excessively high bias (above 11.7V), while amber indicates a short circuit in the assembly or a bias voltage below the operating limit (4.4V).
Housed in a robust polymer enclosure measuring 158mm x 95mm x 33mm, the MTN/8301 operates autonomously using two 9V PP3 batteries. Its low current consumption of 4.7 mA and reverse polarity protection ensure constant availability for quick field checks on constant current accelerometers.
- Diagnosis of accelerometers and cables partners in a single transaction.
- Three-state LED indicator: Green (OK), Amber (Short) and Red (Open).
- Precise voltage limits for the polarization fault detection.
- Portable power supply via two standard 9V batteries.
Technical Frequently Asked Questions
1. What voltage levels determine that an accelerometer is in good condition?
The MTN/8301 considers the accelerometer operational when the bias voltage is maintained within the range of 4.4V to 11.7V. If the voltage detected at the BNC socket is within these limits, the status LED will illuminate green, indicating that the sensor and cable are ready for measurement.
2. How do I connect the accelerometer or cable to the test unit?
The connection is made via the BNC socket on the front panel. The center contact of the BNC connects to the positive terminal of the sensor, while the outer part of the connector acts as the negative or return terminal, allowing for the testing of both individual sensors and cables installed in the machine.
3. What protection does the equipment incorporate against power supply errors?
To ensure the integrity of the internal electronics during battery changes in the field, the MTN/8301 incorporates reverse polarity circuit protection. This prevents damage to the equipment if 9V PP3 batteries are inserted incorrectly.
Properties
| Feature | Technical Specification |
| Device Type | Accelerometer and Cable Tester |
| Function | Verification of Vibration and Continuity Sensors |
| Connection Input | BNC socket on front panel |
| Green LED Indicator | Accelerometer and cable correct (Bias OK) |
| Red LED Indicator | Open Circuit or High Bias |
| Amber LED Indicator | Short Circuit or Low Bias |
| Bias Limit "High"« | Voltage higher than 11.7V |
| Bias Limit "OK"« | Between 4.4V and 11.7V |
| Bias Limit "Low"« | Voltage lower than 4.4V |
| Feeding | 2 x 9V PP3 type batteries |
| Current Consumption | 4.7 mA |
| Circuit Protection | Reverse Polarity Protection |
| Chassis Dimensions | 158 mm x 95 mm x 33 mm |
| Housing Material | Industrial Plastic Housing |
| External Controls | ON/OFF switch on top panel |
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