> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sensor-works.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Machine-Check

> A simple machine-assessment tool: a rugged Android handset pre-loaded with the VibCheck app and two MEMS sensors, with ISO 20816 templates for motors, pumps, gearboxes and generic shafts.

Machine-Check is an easy-to-use machine-assessment tool for both reliability and non-reliability personnel. Sensors connect over Bluetooth to a rugged Android handset running a simple app with pre-configured templates, with alarms set in accordance with ISO 20816 — ideal for walk-around data collection.

<Note>
  **Issue F · June 2026.** Specification subject to change without notice.
</Note>

## Overview

<CardGroup cols={2}>
  <Card title="Pre-loaded Android app" icon="mobile-screen">
    Simple-to-operate VibCheck application on a rugged Android handset.
  </Card>

  <Card title="ISO 20816 templates" icon="list-check">
    Templates for motors, centrifugal pumps, gearboxes and generic rotating shafts, with alarms set to ISO 20816.
  </Card>

  <Card title="Velocity & temperature" icon="wave-square">
    Measures velocity and temperature, with an on-the-spot spectrum pop-up on request.
  </Card>

  <Card title="Photos & notes" icon="camera">
    Capture up to four photos and notes at machine and measurement level; export raw data via email or Google Drive.
  </Card>
</CardGroup>

The workflow is straightforward: **create from a template → connect to the sensors → measure → review & report.** Ideal for service, reliability, operations or maintenance teams assessing motors, fans, pumps, gearboxes and other rotating assets.

## What's included

| Item         | Details                                                                                               |
| ------------ | ----------------------------------------------------------------------------------------------------- |
| Handset      | Android 12 rugged smartphone, charger & cables — pre-loaded with the VibCheck application             |
| Sensors      | 2 × BluVib-M-ST-3 fitted with a rechargeable battery                                                  |
| Mounting     | 2 × magnetic mounts · 2 × fin mounts / stinger (non-magnetic assets) · 2 × flat-plate adhesive mounts |
| Charging     | 1 × dual-cell recharging station                                                                      |
| Backup media | USB memory stick with backup application files                                                        |
| Case         | Carrying case                                                                                         |

## Specification

### Measurement

| Item                    | Specification                                                        |
| ----------------------- | -------------------------------------------------------------------- |
| Number of channels      | 1 × vibration \[x] + 1 × temperature (the app reads the X axis only) |
| Accelerometer type      | Capacitive MEMS accelerometer                                        |
| Maximum range           | ±16 g                                                                |
| Frequency range (±3 dB) | 6 kHz (typical)                                                      |
| Temperature range       | −25 °C to +75 °C                                                     |

### Data acquisition & communications

| Item              | Specification                                         |
| ----------------- | ----------------------------------------------------- |
| Sample rate       | 25.6 kHz                                              |
| Data block length | 32,768 samples                                        |
| Network           | Bluetooth Low Energy 5 (all versions)                 |
| Certifications    | Europe: R\&TTE — USA, Canada, International: FCC / IC |

### Sensor — mechanical, environmental & power

| Item                  | Specification                                                              |
| --------------------- | -------------------------------------------------------------------------- |
| Enclosure             | Base: anodised aluminium · Cover: plastic                                  |
| Weight                | 100 g                                                                      |
| Dimensions            | 33 mm diameter × 92 mm high                                                |
| Mounting              | Internal ¼-28 UNF thread                                                   |
| Operating temperature | −25 °C to +75 °C                                                           |
| Sealing               | IP66                                                                       |
| Compliance            | CE, UKCA, RoHS                                                             |
| Battery               | Lithium Thionyl Chloride, 3.6 V, Size A (SAFT LS17500) · field replaceable |
| Battery life          | Up to 5 years; over 1 year under full daily operation                      |

The rugged handset is drop-tested to 1.8 m (6 ft) and IP65 water- and dust-resistant, with a rechargeable lithium battery rated for over 3000 hours of frequent daily use.

## Downloads

<CardGroup cols={1}>
  <Card title="Machine-Check datasheet (PDF)" icon="file-pdf" href="https://www.sensor-works.com/wp-content/uploads/2026/07/Machine-Check-Datasheet.pdf">
    Full printable specification · Issue F, June 2026
  </Card>
</CardGroup>

***

<Info>
  **Sensor-Works Ltd.** · Alba Innovation Centre, Alba Campus, Livingston, West Lothian EH54 7GA · +44 (0)1506 592356 · [www.sensor-works.com](https://www.sensor-works.com)
</Info>