Universal Accelerometer Disc
The MNT-112 accelerometer mount pad is a multi-pattern mounting accessory for the AT-2040 portable vibration calibrator. It supports select 2-hole, 3-hole, and specialty accelerometer foot patterns, including 4-40, 8-32, and 10-32 mounting configurations.
MNT-112 Multi-Pattern Accelerometer Mount Pad for AT-2040
The MNT-112 Multi-Pattern Accelerometer Mount Pad expands the mounting capability of the AT-2040 Portable Vibration Calibrator by supporting a wide range of specialty accelerometer foot patterns. Designed for users who need to test more than standard single-stud accelerometers, this stainless-steel mounting pad provides dedicated mounting locations for 2-hole, 3-hole, and specialty multi-hole accelerometers.
The pad includes multiple threaded hole patterns for common accelerometer mounting hardware, including 4-40, 8-32, and 10-32 configurations. This makes it useful for calibration labs, field service technicians, aerospace test groups, and vibration sensor manufacturers who need a rigid, repeatable mounting surface for accelerometer calibration, sensor verification, and vibration response testing.
The MNT-112 is especially useful when working with accelerometers that use bolt-on foot patterns instead of a single center stud. It allows the AT-2040 to support select CEC, and other specialty accelerometer styles without requiring a custom fixture for every sensor.
Supported mounting patterns
| Pattern type | Thread | Approximate pattern |
|---|---|---|
| 2-hole pattern | 4-40 UNC | Approx. 0.820 in / 20.8 mm spacing |
| 3-hole pattern | 8-32 UNC | Approx. 1.188–1.190 in bolt circle |
| 3-hole pattern | 10-32 UNF | Approx. 1.19 in triangular pattern |
| Additional 10-32 locations | 10-32 UNF | For common studs, adapters, and specialty fixtures |
Sensor compatibility
The MNT-112 is designed for select multi-hole accelerometers and specialty sensor foot patterns, including:
CEC 4-170 / 4-171 style accelerometers
The 8-32 three-hole pattern is intended for sensors using a three-point mounting pattern on approximately a 1.188 in bolt circle. This matches the published CEC 4-170 and 4-171 style mounting pattern.
Select three-hole accelerometers
The pad also supports select accelerometers using a three-screw mounting arrangement. This includes e three-hole accelerometers that use 8-32 mounting screws on approximately a 1.19 in bolt circle.
Select MEMS / analog accelerometers with two-screw mounting
The two-hole mounting locations may also support select MEMS or analog accelerometers that use two-screw mounting. The exact model drawing should be verified before use because Dytran uses more than one two-screw pattern.
Compatibility statement
The MNT-112 is compatible with select 2-hole, 3-hole, and specialty multi-hole accelerometers, including CEC 4-170 / 4-171 style sensors, select 3-hole accelerometers, and select MEMS/analog accelerometers with two-screw mounting.
