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Setting a PPM Alarm
1. Launch the phx42 app on the Android handheld.
2. Select the phx42 from the list.
3. Tap Connect.
REMINDER: Tap Pair if necessary.
4. Tap the Menu in the top-left corner of the screen.
5. Tap Settings.
6. Tap the PPM Alarm field.
7. Enter the PPM Alarm value you want to set.
8. Tap Save.
Igniting the phx42
1. Tap Ignite.
TECH TIP: After you have filled the unit with hydrogen it may take several attempts to ignite.. This
is because the hydrogen pressure has to stabilize. The best approach is to wait 4 minutes between each
ignition attempt. If Ignition Failure continues after 3 tries, perform a self-check, and submit a failure
with comments to LDARtools Support Team.
More about the 42App
A word about the Device Details
1. The Device Details screen shows how the machine is operating.
2. This DOES NOT indicate what the values should be or whether or not the values are in
nominal ranges.
3. OTHER VALUES ARE INDIVIDUALLY SET FOR EACH, UNIQUE phx42 AND WILL
THEREFORE BE DIFFERENT!!!*
4. A constant history of these values is maintained for LDARtools Tech Support to facilitate
troubleshooting.
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