CK:199 Trojan
2
Noise Nuisance Recorder User Manual Guide
Page 6
The amount of time available for the pre and post trigger can be adjusted in the
NoiseTools software.
If the external mains power is removed the unit will run on its internal batteries for
approximately 8 hours with a new set of batteries.
Changing the batteries is covered in the sound level meter user manual supplied with
the Trojan
2
.
If the power is reconnected before this time, the system will simply revert to mains
power and continue unaffected.
If the mains power is not reconnected and the internal batteries are run down, the
instrument will store the noise data and audio recordings and then shut down safely.
After a shut-down when the mains power is reconnected, the instrument will reboot and
after 10 minutes (or when the remote control is pressed or the Start button on the
keypad is pressed if this is sooner) restart measuring and storing noise data.
This reduces the risk of data being lost when power is removed from the system.
All of the measurements are stored directly to a high performance memory card which
is internal to the system. The measurements are stored continuously which prevents
data loss and ensures that the data cannot be tampered with or adjusted before it is
downloaded to the reviewing software.
Using the sound level meter as a handheld instrument
The Sound Level Meter can be removed from the case and used and as a standalone
instrument with the microphone and preamplifier.
Before removing the sound level meter from the case, ensure that it is switched off by
holding down the power button and following the on screen instructions.
For details of using the sound level meter as handheld instrument, please refer to the
optimus Sound Level Meter user manual supplied with the Trojan
2
Noise Nuisance
Recorder.
