# Powering on the loggers

## IP30 enclosure

To power on an Efento BLE logger in an IP30 enclosure, simply remove the battery-isolating foil that prevents the battery from making contact with the holder. The foil protrudes from the back of the device, so there is no need to open the enclosure.

<figure><img src="/files/Qbdt9FoEeG5z4WEx9Tck" alt="" width="375"><figcaption></figcaption></figure>

{% hint style="info" %}
If you ordered a logger with a calibration certificate, the battery-isolating foil was removed by the laboratory during the calibration process. This means the device is already powered on and operating.
{% endhint %}

## IP67 enclosure

IP67 logger provide waterproof and dustproof protection. Because the enclosure is fully sealed, extra care is required when opening and closing the device to maintain its environmental rating.

{% stepper %}
{% step %}

### Open the enclosure

Using a cruciform screwdriver (PZ1 / PH1), remove all screws from the enclosure.

<figure><img src="/files/X0LFMQdNUQsysKLKqnfX" alt="" width="375"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Remove the battery-isolating foil

Take out the battery-isolating foil that prevents the battery from making contact with the holder.

<figure><img src="/files/Qbdt9FoEeG5z4WEx9Tck" alt="" width="375"><figcaption></figcaption></figure>
{% endstep %}

{% step %}

### Close the enclosure

Align the cover so the gasket sits evenly. Close the enclosure and reinstall all screws.

{% hint style="danger" %}
**Ensure every screw is tightened securely** -loose screws may allow water to enter the enclosure and damage the internal electronics.
{% endhint %}

<figure><img src="/files/bPyKxmOuKggCz3Sw3d0R" alt="" width="375"><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}


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