--- id: v2-prepare-kit-sensors-app slug: prepare-kit-sensors-app sequence: 3 title: "Prepare the kit, sensors and app" url: https://etiscope.com/support/guide/prepare-kit-sensors-app/ video_state: draft video_duration_seconds: 240.491 video_url: https://media-etiscope.jointaction.cloud/lessons/prepare-kit-sensors-app/a4220a5c27a3bb891ab17c84d6ed595d81f9514a1d822b21068881258e3b0272/video.mp4 captions_url: https://media-etiscope.jointaction.cloud/lessons/prepare-kit-sensors-app/a4220a5c27a3bb891ab17c84d6ed595d81f9514a1d822b21068881258e3b0272/captions.vtt --- # 3. Prepare the kit, sensors and app Everything between opening the case and a fitted worker. These steps are tempting to rush, and they matter more than any others for data quality — a sensor that is loose, twisted or assigned to the wrong location produces a score for movement that never happened. **Before this lesson:** 1. Etiscope: what it does and how the work flows (https://etiscope.com/support/guide/introduction/); 2. Set up your organisation, users and categories (https://etiscope.com/support/guide/set-up-organisation/) ## What you'll be able to do The learner can take sensors from the case to assigned and correctly fitted, and knows the maintenance actions on the Sensors tab. - [describe-kit-and-charging] Describe the kit's components and how to charge and store the sensors. - [sign-in-to-app] Sign in to Etiscope Capture, including the sign-in-with-link and reset-password paths. - [assign-and-fit-sensors] Assign the five sensors to their body locations in the app's order and fit each one correctly. - [maintain-sensor-health] Use the Sensors tab maintenance actions — calibrate, update firmware, reset — and tell calibration apart from normalising. ## Video - MP4: https://media-etiscope.jointaction.cloud/lessons/prepare-kit-sensors-app/a4220a5c27a3bb891ab17c84d6ed595d81f9514a1d822b21068881258e3b0272/video.mp4 - Captions (WebVTT): https://media-etiscope.jointaction.cloud/lessons/prepare-kit-sensors-app/a4220a5c27a3bb891ab17c84d6ed595d81f9514a1d822b21068881258e3b0272/captions.vtt - YouTube (secondary): https://www.youtube.com/watch?v=Ijd3GvcRpYs **Chapters:** 0:00 Charge the kit · 0:45 Sign in · 1:07 Assign the sensors · 2:16 Fit the straps · 3:03 Keep the sensors healthy ## The lesson ### Charge the kit Your Etiscope kit is the case, five sensors, the charger, and the straps that hold each sensor in place: a head strap, an upper-back strap, two arm bands, and a waist strap for the lower back. Each sensor sits in its strap's mesh pocket, and **the sensors are labelled for their locations**. Those labels help you a lot later — they make fitting faster and much harder to get wrong. The charger is a single block with five leads, one per sensor. Charge the sensors before an assessment day. Plug each sensor into one of the charger's five leads and leave them to charge. For longer storage: the batteries are lithium polymer, so avoid leaving them completely empty or completely full for months at a time. Day to day, you don't need to think about it — just charge them before you head out. ### Sign in Open Etiscope Capture. Enter your email and choose **Next**, then enter your password to sign in. If you'd rather not type a password on a tablet on a work site, choose **Sign in with a link** and the app emails you a sign-in link that signs you in automatically. If you can't get in at all, **Reset password** is on the same screen. If the reset arrives and you still can't sign in, check with your administrator that your account is active — a deactivated account can't sign in. ### Assign the sensors Sensors are assigned to body locations, so the app knows which movement each one is measuring. Assignment belongs to the sensor rather than the assessment, so you do it once per kit, not once per capture. On the **Sensors** tab, open the menu and choose **Assign sensor locations**. The app looks for sensors and tells you how many it found. Choose **Continue**. It then asks for one location at a time, starting with the head. **The app accepts any sensor for any location** — it has no way to know which physical unit you're holding. That's why the labels matter: pick the sensor marked for the head and press its button, the grey circle on the front. The light turns green, and that sensor is assigned. Repeat for upper back, lower back, left arm and right arm, matching each label as you go. Keeping the labels true takes no extra time now and makes fitting straightforward for everyone who picks up the kit afterwards. When all five are assigned, the app finishes setup and confirms **Sensors assigned**. If the app says sensors need updating before they can connect, choose **Update sensors** and let the update finish. You can't use the sensors until it does, so leave yourself time rather than starting it just before a capture. > **On screen** — Head · Upper back · Lower back · Left arm · Right arm ### Fit the straps **Fitting is where good assessments begin.** A loose or twisted sensor measures movement that never happened, and nothing later on can tell the difference between that and a genuinely awkward task. Fit each sensor with its strap, at its location, with the sensor sitting flat against the body. **Head** — The head strap goes around the head, with its sensor centred at the back. **Upper back** — Worn at the base of the neck. **Lower back** — The waist strap holds this sensor centred at the small of the back. **Left and right arm** — The arm bands go around each upper arm, sensor on the outside. Each sensor is labelled for its location — match the label to where you are fitting it, and the assignment you did in the app stays true. Before you move on, give all five a quick check: secure, flat, and each in its own location. > **Do this** — Secure · Flat · Own location — five for five ### Keep the sensors healthy The **Sensors** tab is also where you maintain the kit. There are three actions here, and you'll rarely need two of them. **Calibrate sensors** checks each sensor's motion sensing and finishes when every location's accuracy reads high. Run it **only when a sensor is giving obviously wrong data** — the graphs don't match the movement you can see in front of you. You don't need it as a routine warm-up. These two words are often mixed up, so it's worth being clear: **calibration is sensor maintenance. Normalising is something you do with the worker before every capture.** They're unrelated, they live in different places, and doing one doesn't do the other. **Update sensor firmware** installs the latest sensor software. Once it starts it can't be cancelled, so run it when the sensors are charged and you have a few minutes to spare, rather than between two captures on a live site. **Reset sensors** resets every connected sensor. Use it when a sensor is misbehaving. Charged, assigned, fitted — and you know where to find maintenance when a sensor needs it. Your kit is ready; next you'll decide what's worth assessing. ## Mistakes that matter - Loose or misoriented sensors. This is where assessments most often go wrong, and it's invisible afterwards — the data still looks like data. - Confusing calibration with normalising. Calibrating before every capture costs you time, and skipping normalise because you calibrated corrupts the measurement. - Starting an assessment day on uncharged sensors. The pre-flight warning will catch it — but on site, with the worker already fitted and waiting. ## Not covered here - Setting up the organisation and its users — the administrator's side of getting an assessor signed in — see lesson 2, Set up your organisation, users and categories (https://etiscope.com/support/guide/set-up-organisation/) - Normalising, named here only to separate it from calibration — see lesson 5, Capture an assessment (https://etiscope.com/support/guide/capture-an-assessment/) - Detailed sign-in troubleshooting **Next lesson:** 4. Plan and create an assessment — https://etiscope.com/support/guide/plan-and-create-an-assessment/