Rotational seismometer METR-13
The METR-13 and METR-11 models are quite similar to METR-01 and METR-03 but they are optimized for operation in the seismic exploration frequency range (1-150 Hz).
Characteristics Delivery and warranty
Frequency range | 0.033 Hz (30 sec) - 100 Hz 1 Hz - 150 Hz or by customer specification |
Sensitivity | 50 V/(rad/sec) |
Clip level | 0.1 rad/sec |
Self noise at 1 Hz | 2*10^-7 rad/sec in 10–150 Hz passband |
Sensitivity axes | 3 orthogonal |
Supply voltage | 12 V Nominal (10.5-16 V permissible) |
Power consumption | 24 mA nominal |
Temperature range | -40...+55°C |
Maximum installation tilt | Any |
Dimensions | 120 x 120 x 102 mm |
Weight | 1.5 kg |
Case material | Aluminum |
Output impedance | 500 Ohm |
Cold-start time | ~15 min depending on low-frequency cut-off |
Maximum output swing | ±5 V, single-ended output |