MTN/P1100 Load Accelerometer

The MTN/P1100 is a passive charge-output piezoelectric accelerometer, without internal electronics, with a nominal sensitivity of 1100 pC/g ±10% (@ 80Hz). Applications: seismic sensing, structural instrumentation, and underground leak detection. Operating temperature: -55 °C to +250 °C.

Seismic mass of 250 grams. Mounted resonance: 10 kHz (nominal). Dynamic range: ±100 g. Nominal capacitance: 450 pF (4400 pF maximum). Transverse sensitivity: less than 5%.

Being a passive high impedance sensor, it requires an external in-line load amplifier (e.g., the MTN/CA003 module) to convert the load into an analog voltage.

Stainless steel housing with IP65 protection rating. Top-entry TNC coaxial connector. Mounting via 1/4″-28 UNF female threaded base, with a tightening torque of 8 Nm. The base is not galvanically isolated.

• Passive load output (pC/g), with operating temperature up to 250 °C.
• Sensitivity of 1100 pC/g.
• TNC coaxial connection.
• Non-galvanically isolated base (with ground loops, an external adapter is required).

Technical FAQs

1. Can it be connected to a standard IEPE data collector?
Not directly. As it's a load sensor (without an amplifier), its signal isn't pre-amplified. It requires an external load amplifier between the sensor and the measuring equipment to convert the signal from pC/ga to mV/g.

2. Why do you use a TNC connector instead of a MIL or Microdot type connector?
The TNC connector has a threaded coupling, for seismic or underground monitoring applications with longer cable runs.

3. Is the sensor base electrically insulated?
No. The housing is «Base non-isolated»: the sensor element shares mass with the machine. If the installation has potential differences (ground loops), an external mechanical isolation pad or adapter (e.g., accessory MS048) must be used.