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Old 01-29-2010, 03:59 AM   #443
Gertjan
ex-IRX developer
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Posts: 158
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Join Date: Oct 2008
Device: Irex DR800S, DR1000S, iLiad
Quote:
Originally Posted by mgmueller View Post
Are you an iRex employee and is this an official statement?
Yes, I am employed by IREX. My word is official as far as developer statements go. When it contradicts other statements, my word means nothing

Quote:
Originally Posted by mgmueller View Post
The DR800 if "ON" will vary its power state depending on usage behavior. When "ON" and no buttons are pressed the device will go into power saving mode after some time.

When you press and hold the switch to the left for 2-3 seconds the device will go into standby mode. Finally after some time it will switch "OFF": This is also a kind of standby state however with very low power consumption to allow for the device to start up quickly."
While this is basically correct, let me clarify the various power management states as terminology gets a bit confusing here.

Like DR1000, the DR800 saves power by going into a low power mode when it is idle for a few seconds. This is completely non intrusive, as wake up is virtually instant.

The user manual only mentions an "off" state with a quick power "on", though this is technically implemented as standby (suspend to RAM). A brief slide of the power button - no need to hold it for 2-3 seconds - switches to "off" (standby). As mentioned earlier, power consumption is minimal in this mode. Another brief slide switches it back on (resume) in a few seconds, retaining the reading state.

Then there is the auto-power-off feature. It puts the device into "off" (standby) after 30 minutes of inactivity.

When the battery is almost exhausted, the device will go into a real OFF mode. A brief slide of the power button switches the device on. Now it will do a complete boot which takes about a minute.

Holding the power switch for more than 3 seconds resets the device. The complete boot which takes about a minute.
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