# How to replace a battery
Batteries in the NEON product family are user-serviceable components. Therefore, the user can replace such batteries following the instructions outlined next.
{% hint style="danger" %}
Batteries must be replaced outside of the ATEX zone (Hazardous Location).
{% endhint %}
Pressure Gauge (PG)
**Step 1**: Remove the four M3 screws and remove the bottom housing.
**Step 2**: Before removing the battery assembly, disconnect the battery connector (marked in red).
**Step 3**: Place the new battery assembly using the rib on the battery cradle (marked in red) to align with the designated cut-out in the top housing. Connect the new battery connector.
**Step 4 (Optional)**: Deactivate the device if a Built-In Self-Test is needed.
**Step 5 (Optional)**: Built-In Self-Test.
1. After a successful replacement of the battery, the device will go into self-test mode. This mode is activated for 30 seconds.
1. A BLUE LED will show after inserting the battery;
2. If no LED is shown, check the battery and / or device;
2. Start the test by pressing and releasing the button;
3. Check the results:
1. LED turns bright WHITE for 5 seconds. Self test passed;
2. LED turns RED, self test failed. Check device;
3. No LED, no response from device. Check device.
**Step 6**: Replace the 4 o-rings surrounding the screws and the gasket in the outer edge of the bottom housing.
**Step 7**: Place the bottom housing back onto the top housing. For correct orientation; make sure that the bottom housing grounding plate is aligned with the top housing M12 connector.
**Step 8**: Tighten the four M3 screws to fix the bottom housing. Use a torque screwdriver to set the maximum torque to 1 Nm.
Pressure Sensor (PS)
**Step 1**: Remove the four M3 screws and remove the bottom housing.
**Step 2**: Before removing the battery assembly, disconnect the battery connector (marked in red).
**Step 3**: Place the new battery assembly using the rib on the battery cradle (marked in red) to align with the designated cut-out in the top housing. Connect the new battery connector.
**Step 4 (Optional)**: Deactivate the device if a Built-In Self-Test is needed.
**Step 5 (Optional)**: Built-In Self-Test.
1. After a successful replacement of the battery, the device will go into self-test mode. This mode is activated for 30 seconds.
1. A BLUE LED will show after inserting the battery;
2. If no LED is shown, check the battery and / or device;
2. Start the test by pressing and releasing the button;
3. Check the results:
1. LED turns bright WHITE for 5 seconds. Self test passed;
2. LED turns RED, self test failed. Check device;
3. No LED, no response from device. Check device.
**Step 6**: Replace the 4 o-rings surrounding the screws and the gasket in the outer edge of the bottom housing.
**Step 7**: Place the bottom housing back onto the top housing. For correct orientation; make sure that the bottom housing grounding plate is aligned with the top housing M12 connector.
**Step 8**: Tighten the four M3 screws to fix the bottom housing. Use a torque screwdriver to set the maximum torque to 1 Nm.
Temperature Sensor (TS)
**Step 1**: Remove the four screws and remove the lower housing
**Step 2**: Remove the old battery
**Step 3**: Remove the gasket from the outer edge of the enclosure
**Step 4**: Place the new gasket in the outer edge of the enclosure
**Step 5**: Place the new battery
**Step 6**: Place the lower housing back on the upper housing. Please make sure that the 2 cutout lines on the lower housing match the upper housing. Tighten the four screws to fix the lower housing (max. 1Nm)
Temperature Transmitter DS-TT-01-xx (TT)
**Step 1**: Remove the two M4 screws and washers fixing the bracket.
**Step 2**: Remove the four screws and remove the lower housing.
**Step 3**: Remove the batteries, and inspect the presence of insulating pads marked in red.
**Step 4**: Place the two new batteries in the battery holder with the positive side facing the positive markings on the circuit board.
**Step 4 (Optional)**: Deactivate the device if a Built-In Self-Test is needed.
**Step 5 (Optional)**: Built-In Self-Test.
1. After a successful replacement of the battery, the device will go into self-test mode. This mode is activated for 30 seconds.
1. A BLUE LED will show after inserting the battery;
2. If no LED is shown, check the battery and / or device;
2. Start the test by pressing and releasing the button;
3. Check the results:
1. LED turns bright WHITE for 5 seconds. Self test passed;
2. LED turns RED, self test failed. Check device;
3. No LED, no response from device. Check device.
**Step 6**: Replace the 4 O-Rings surrounding the screws and the gasket in the outer edge of the enclosure.
**Step 7**: Place the lower housing back on the upper housing. Please see make sure that the cutout on the lower housing matches the upper housing. Tighten the four screws to fix the lower housing.
**Step 8**: Tighten the four M4 screws to fix the lower housing.
**Step 9**: Tighten the two M4 screws and washers to fix the bracket.\
Temperature Transmitter DS-TT-02-xx (TT)
**Step 1**: Remove the four M3 screws and remove the bottom housing.
**Step 2**: Before removing the battery assembly, disconnect the battery connector (marked in red).
**Step 3**: Place the new battery assembly using the rib on the battery cradle (marked in red) to align with the designated cut-out in the top housing. Connect the new battery connector.
**Step 4 (Optional)**: Deactivate the device if a Built-In Self-Test is needed.
**Step 5 (Optional)**: Built-In Self-Test.
1. After a successful replacement of the battery, the device will go into self-test mode. This mode is activated for 30 seconds.
1. A BLUE LED will show after inserting the battery;
2. If no LED is shown, check the battery and / or device;
2. Start the test by pressing and releasing the button;
3. Check the results:
1. LED turns bright WHITE for 5 seconds. Self test passed;
2. LED turns RED, self test failed. Check device;
3. No LED, no response from device. Check device.
**Step 6**: Replace the 4 o-rings surrounding the screws and the gasket in the outer edge of the bottom housing.
**Step 7**: Place the bottom housing back onto the top housing. For correct orientation; make sure that the bottom housing grounding plate is aligned with the top housing M12 connector.
**Step 8**: Tighten the four M3 screws to fix the bottom housing. Use a torque screwdriver to set the maximum torque to 1 Nm.
Vibration Sensor DS-LD-VB-01-xx (VB)
**Step 1**: Remove the two M4 screws and washers fixing the bracket.
**Step 2**: Remove the four screws and remove the lower housing.
**Step 3**: Remove the batteries, and inspect the presence of insulating pads marked in red.
**Step 4**: Place the two new batteries in the battery holder with the positive side facing the positive markings on the circuit board.
**Step 4 (Optional)**: Deactivate the device if a Built-In Self-Test is needed.
**Step 5 (Optional)**: Built-In Self-Test.
1. After a successful replacement of the battery, the device will go into self-test mode. This mode is activated for 30 seconds.
1. A BLUE LED will show after inserting the battery;
2. If no LED is shown, check the battery and / or device;
2. Start the test by pressing and releasing the button;
3. Check the results:
1. LED turns bright WHITE for 5 seconds. Self test passed;
2. LED turns RED, self test failed. Check device;
3. No LED, no response from device. Check device.
**Step 6**: Replace the 4 O-Rings surrounding the screws and the gasket in the outer edge of the enclosure.
**Step 7**: Place the lower housing back on the upper housing. Please see make sure that the cutout on the lower housing matches the upper housing. Tighten the four screws to fix the lower housing.
**Step 8**: Tighten the four M4 screws to fix the lower housing.
**Step 9**: Tighten the two M4 screws and washers to fix the bracket.\
Vibration Sensor DS-LD-VB-02-xx (VB)
**Step 1**: Remove the four M3 screws and remove the bottom housing.
**Step 2**: Before removing the battery assembly, disconnect the battery connector (marked in red).
**Step 3**: Place the new battery assembly using the rib on the battery cradle (marked in red) to align with the designated cut-out in the top housing. Connect the new battery connector.
**Step 4 (Optional)**: Deactivate the device if a Built-In Self-Test is needed.
**Step 5 (Optional)**: Built-In Self-Test.
1. After a successful replacement of the battery, the device will go into self-test mode. This mode is activated for 30 seconds.
1. A BLUE LED will show after inserting the battery;
2. If no LED is shown, check the battery and / or device;
2. Start the test by pressing and releasing the button;
3. Check the results:
1. LED turns bright WHITE for 5 seconds. Self test passed;
2. LED turns RED, self test failed. Check device;
3. No LED, no response from device. Check device.
**Step 6**: Replace the 4 o-rings surrounding the screws and the gasket in the outer edge of the bottom housing.
**Step 7**: Place the bottom housing back onto the top housing. For correct orientation; make sure that the bottom housing grounding plate is aligned with the top housing M12 connector.
**Step 8**: Tighten the four M3 screws to fix the bottom housing. Use a torque screwdriver to set the maximum torque to 1 Nm.
Contact Sensor (VS-CS)
**Step 1**: Remove the four screws and remove the lower housing
**Step 2**: Remove the old battery
**Step 3**: Remove the gasket from the outer edge of the enclosure
**Step 4**: Place the new gasket in the outer edge of the enclosure
**Step 5**: Place the new battery
**Step 6**: Place the lower housing back on the upper housing. Please make sure that the 2 cutout lines on the lower housing match the upper housing. Tighten the four screws to fix the lower housing (max. 1Nm)
Valve Sensor - Multiturn (VS-MT)
**Step 1**: Remove the four screws and remove the lower housing
**Step 2**: Remove the old battery
**Step 3**: Remove the gasket from the outer edge of the enclosure
**Step 4**: Place the new gasket in the outer edge of the enclosure
**Step 5**: Place the new battery
**Step 6**: Place the lower housing back on the upper housing. Please make sure that the 2 cutout lines on the lower housing match the upper housing. Tighten the four screws to fix the lower housing (max. 1Nm)
Valve Sensor - Quarter Turn (VS-QT)
**Step 1**: Remove the four screws and remove the lower housing
**Step 2**: Remove the old battery
**Step 3**: Remove the gasket from the outer edge of the enclosure
**Step 4**: Place the new gasket in the outer edge of the enclosure
**Step 5**: Place the new battery
**Step 6**: Place the lower housing back on the upper housing. Please make sure that the 2 cutout lines on the lower housing match the upper housing. Tighten the four screws to fix the lower housing (max. 1Nm)
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